{"id":2200,"date":"2021-01-19T15:16:44","date_gmt":"2021-01-19T08:16:44","guid":{"rendered":"http:\/\/vafs.gov.vn\/en\/?p=2200"},"modified":"2023-11-23T12:24:52","modified_gmt":"2023-11-23T05:24:52","slug":"vietnam-journal-of-forest-science-number-6-2020","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/en\/2021\/01\/vietnam-journal-of-forest-science-number-6-2020\/","title":{"rendered":"Vietnam Journal of Forest Science Number 6-2020"},"content":{"rendered":"

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<\/a><\/a><\/a>T\u1ea0P CH\u00cd KHOA H\u1eccC L\u00c2M NGHI\u1ec6P S\u1ed0 6<\/strong> – 20<\/strong>20<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
1.<\/td>\nTh\u1ef1c tr\u1ea1ng s\u1eed d\u1ee5ng c\u00e2y thu\u1ed1c t\u1ea1i x\u00e3 Ph\u00fa \u0110\u00f4,
\nhuy\u1ec7n Ph\u00fa L\u01b0\u01a1ng, t\u1ec9nh Th\u00e1i Nguy\u00ean<\/td>\n		Status of using medicinal plants in Phu Do commune, Phu Luong district,
\nThai Nguyen province<\/td>\n		Tr\u1ecbnh \u0110\u00ecnh Kh\u00e1
\nTh\u00e0o A D\u00ecnh
\nNg\u1ea3i S\u00ecnh Pao
\nNguy\u1ec5n Th\u1ecb Thu Hi\u1ec1n<\/em><\/td>\n		3<\/td>\n<\/tr>\n
2.<\/td>\nNghi\u00ean c\u1ee9u nh\u00e2n gi\u1ed1ng
\nIn vitro <\/em>c\u00e1c gia \u0111\u00ecnh \u01b0u vi\u1ec7t Keo tai t\u01b0\u1ee3ng (Acacia mangium<\/em> Willd.) ph\u1ee5c v\u1ee5 tr\u1ed3ng r\u1eebng d\u00f2ng v\u00f4 t\u00ednh theo gia \u0111\u00ecnh<\/td>\n		In vitro<\/em> propagation for superior families of Acacia magium<\/em> Willd. providing for clonal family forestry<\/td>\nL\u01b0u Th\u1ecb Qu\u1ef3nh
\nLa \u00c1nh D\u01b0\u01a1ng
\nPh\u00ed H\u1ed3ng H\u1ea3i
\nNghi\u00eam Qu\u1ef3nh Chi
\n\u0110\u1ed3ng Th\u1ecb \u01afng
\nTri\u1ec7u Th\u1ecb Thu H\u00e0<\/em><\/td>\n		13<\/td>\n<\/tr>\n
3.<\/td>\nNghi\u00ean c\u1ee9u nh\u00e2n gi\u1ed1ng cho m\u1ed9t s\u1ed1 d\u00f2ng keo tam b\u1ed9i (X101, X102) m\u1edbi \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn gi\u1ed1ng b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p nu\u00f4i c\u1ea5y m\u00f4 t\u1ebf b\u00e0o<\/td>\nStudy on propagation of new triploid acacia (X101, X102) by tissue culture method<\/td>\n\u0110\u1ed3ng Th\u1ecb \u01afng
\nNghi\u00eam Qu\u1ef3nh Chi
\nL\u01b0u Th\u1ecb Qu\u1ef3nh
\nV\u0103n Thu Huy\u1ec1n<\/em><\/td>\n		22<\/td>\n<\/tr>\n
4.<\/td>\nNghi\u00ean c\u1ee9u k\u1ef9 thu\u1eadt nh\u00e2n gi\u1ed1ng c\u00e2y G\u1ee5 lau (Sindora tonkinensis <\/em>A. Chev. Ex K. & S. S. Larsen) t\u1eeb h\u1ea1t \u1edf giai \u0111o\u1ea1n v\u01b0\u1eddn \u01b0\u01a1m<\/td>\nResearch on propagation
\nof Sindora tonkinensis <\/em>A.Chev.Ex K. & S. S. Larsen from seeds at the nursery stage<\/td>\n		Nguy\u1ec5n Th\u1ecb Kim Vui
\nNguy\u1ec5n Th\u1ecb Li\u1ec7u
\nV\u0169 \u0110\u1ee9c B\u00ecnh
\nNguy\u1ec5n H\u1ea3i Th\u00e0nh
\nNguy\u1ec5n Th\u1ecb Thanh Nga
\nL\u00ea Xu\u00e2n To\u00e0n, L\u00ea C\u00f4ng \u0110\u1ecbnh<\/em><\/td>\n		30<\/td>\n<\/tr>\n
5.<\/td>\nNh\u00e2n gi\u1ed1ng c\u00e2y Xoay (Dialium cochinchiensis <\/em>Pierr) b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p gi\u00e2m hom<\/td>\nThe propagation results of Dialium cochinchiensis<\/em> Pierr with cutting method<\/td>\nPh\u1ea1m Ti\u1ebfn B\u1eb1ng
\nNg\u00f4 V\u0103n C\u1ea7m<\/em><\/td>\n		38<\/td>\n<\/tr>\n
6.<\/td>\n\u1ea2nh h\u01b0\u1edfng c\u1ee7a t\u1ec9a th\u01b0a v\u00e0 b\u00f3n ph\u00e2n \u0111\u1ebfn sinh tr\u01b0\u1edfng, t\u0103ng tr\u01b0\u1edfng r\u1eebng tr\u1ed3ng Sa m\u1ed9c (Cunninghamia lanceolata<\/em> (Lamb.) Hook) \u1edf Qu\u1ea3ng Ninh<\/td>\nEffects of thinning and fertilizer on Cunninghamia lanceolata<\/em> (Lamb.) Hook plantation growth in Quang Ninh province<\/td>\n\u0110\u1eb7ng V\u0103n Thuy\u1ebft
\nL\u00ea Th\u1ecb Ng\u1ecdc H\u00e0
\nNguy\u1ec5n To\u00e0n Th\u1eafng
\n\u0110inh H\u1ea3i \u0110\u0103ng
\nTr\u1ea7n Anh H\u1ea3i
\nD\u01b0\u01a1ng Quang Trung
\nL\u00ea Th\u1ecb H\u1ea1nh
\n\u0110\u00e0o Trung \u0110\u1ee9c
\nDi\u1ec7p Xu\u00e2n Tu\u1ea5n<\/em><\/td>\n		45<\/td>\n<\/tr>\n
7.<\/td>\n\u1ea2nh h\u01b0\u1edfng c\u1ee7a m\u1ed9t s\u1ed1 nh\u00e2n t\u1ed1 l\u1eadp \u0111\u1ecba \u0111\u1ebfn sinh tr\u01b0\u1edfng, t\u0103ng tr\u01b0\u1edfng r\u1eebng tr\u1ed3ng Sa m\u1ed9c (Cunninghamia<\/em> lanceolata<\/em> (Lamb.) Hook) \u1edf v\u00f9ng \u0110\u00f4ng B\u1eafc B\u1ed9<\/td>\nEffect of site factors on the growth of Cunninghamia lanceolata<\/em> (Lamb.) Hook plantations in Northeast of Vietnam<\/td>\n\u0110\u1eb7ng V\u0103n Thuy\u1ebft
\nTr\u00e2n B\u00ecnh \u0110\u00e0, L\u00ea Th\u1ecb Ng\u1ecdc H\u00e0
\nNguy\u1ec5n To\u00e0n Th\u1eafng
\n\u0110inh H\u1ea3i \u0110\u0103ng, \u0110\u00e0o Trung \u0110\u1ee9c
\nD\u01b0\u01a1ng Quang Trung
\nL\u00ea Th\u1ecb H\u1ea1nh, Tr\u1ea7n Anh H\u1ea3i<\/em><\/td>\n		55<\/td>\n<\/tr>\n
8.<\/td>\n\u1ea2nh h\u01b0\u1edfng c\u1ee7a m\u1eadt \u0111\u1ed9 tr\u1ed3ng v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 ch\u0103m s\u00f3c \u0111\u1ebfn sinh tr\u01b0\u1edfng v\u00e0 n\u0103ng su\u1ea5t r\u1eebng Tr\u00e0m l\u00e1 d\u00e0i tr\u1ed3ng tr\u00ean \u0111\u1ea5t ph\u00e8n t\u1ea1i Th\u1ea1nh H\u00f3a – Long An<\/td>\nEffects of planting density and tending intensity to tree growth and productivity of the Melaleuca leucadendra<\/em> plantation on acid sulphate soil in Thanh Hoa – Long An<\/td>\nV\u0169 \u0110\u00ecnh H\u01b0\u1edfng
\nPh\u00f9ng V\u0103n Khang
\nNguy\u1ec5n V\u0103n L\u01b0u
\nKi\u1ec1u M\u1ea1nh H\u00e0
\nNguy\u1ec5n Xu\u00e2n H\u1ea3i
\nNinh V\u0103n Tu\u1ea5n<\/em><\/td>\n		65<\/td>\n<\/tr>\n
9.<\/td>\n\u0110\u00e1nh gi\u00e1 sinh tr\u01b0\u1edfng v\u00e0 n\u0103ng su\u1ea5t c\u1ee7a m\u1ed9t s\u1ed1 d\u00f2ng keo lai, Keo l\u00e1 tr\u00e0m t\u1ea1i B\u00e0u B\u00e0ng, B\u00ecnh D\u01b0\u01a1ng<\/td>\nAssessment on growth and production effects of acacia hybrid and Acacia auriculiformis<\/em> clones planted at Bau Bang, Binh Duong province<\/td>\nNguy\u1ec5n Ki\u00ean C\u01b0\u1eddng
\n\u0110\u1ed7 Th\u1ecb Ng\u1ecdc H\u00e0
\nV\u00ec V\u0103n Kh\u00e1nh
\nPh\u00f9ng V\u0103n T\u1ec9nh<\/em><\/td>\n		76<\/td>\n<\/tr>\n
10.<\/td>\n\u0110\u00e1nh gi\u00e1 sinh tr\u01b0\u1edfng
\nv\u00e0 n\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng keo lai, Keo l\u00e1 tr\u00e0m v\u00e0 b\u1ea1ch \u0111\u00e0n t\u1ea1i Ph\u00fa Gi\u00e1o – B\u00ecnh D\u01b0\u01a1ng<\/td>\n		Evaluate the growth and productivity of plantation forest acacia hybrid, Acacia auriculiformis<\/em> and eucalytus at Phu Giao – Binh Duong<\/td>\nNguy\u1ec5n V\u0103n \u0110\u0103ng
\nV\u0169 \u0110\u00ecnh H\u01b0\u1edfng
\nNguy\u1ec5n Xu\u00e2n H\u1ea3i
\nKi\u1ec1u M\u1ea1nh H\u00e0<\/em><\/td>\n		87<\/td>\n<\/tr>\n
11.<\/td>\nB\u01b0\u1edbc \u0111\u1ea7u nghi\u00ean c\u1ee9u v\u1ec1 k\u1ef9 thu\u1eadt tr\u1ed3ng th\u00e2m canh Tre ng\u1ecdt (Dendrocalamus<\/em> brandisii<\/em> (Munro) Kurz) \u0111\u1ec3 l\u1ea5y m\u0103ng t\u1ea1i C\u1ea7u Hai, Ph\u00fa Th\u1ecd<\/td>\nPreliminary research on intensive planting techniques of Dendrocalamus brandisii <\/em>(Munro) Kurz to obtain bamboo shoots in Cau Hai, Phu Tho province<\/td>\nNguy\u1ec5n V\u0103n Th\u1ecd
\nNguy\u1ec5n Vi\u1ec5n
\nMa Thanh Thuy\u1ebft<\/em><\/td>\n		93<\/td>\n<\/tr>\n
12.<\/td>\n\u0110\u00e1nh gi\u00e1 t\u00ednh ch\u1ed1ng ch\u1ecbu b\u1ec7nh ch\u1ebft h\u00e9o c\u1ee7a c\u00e1c gi\u1ed1ng keo lai, Keo l\u00e1 tr\u00e0m v\u00e0 Keo tai t\u01b0\u1ee3ng b\u1eb1ng nhi\u1ec5m b\u1ec7nh nh\u00e2n t\u1ea1o \u1edf v\u01b0\u1eddn \u01b0\u01a1m<\/td>\nAssessment of tolerance to a canker and wilt pathogen of acacia hybrid, Acacia auriculifomis<\/em> clones and families of A. mangium<\/em> by artificial inoculation
\nin nursery<\/td>\n		Tr\u1ea7n Thanh Tr\u0103ng
\nTr\u1ea7n Anh Tu\u1ea5n, H\u00e0 Huy Nh\u1eadt
\nNg\u00f4 V\u0103n Ch\u00ednh, L\u00ea S\u01a1n
\nNguy\u1ec5n \u0110\u1ee9c Ki\u00ean, \u0110\u1ed7 H\u1eefu S\u01a1n
\nNguy\u1ec5n V\u0103n Nam
\nB\u00f9i Quang Ti\u1ebfp, Ph\u1ea1m Th\u1ecb Th\u1ee7y
\nNguy\u1ec5n Ho\u00e0i Thu
\nNguy\u1ec5n Th\u1ecb Minh H\u1eb1ng<\/em><\/td>\n		101<\/td>\n<\/tr>\n
13.<\/td>\nT\u00ecnh h\u00ecnh g\u00e2y h\u1ea1i v\u00e0 m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m sinh h\u1ecdc c\u1ee7a V\u00f2i voi (Alcidodes<\/em> sp.) \u0111\u1ee5c ng\u1ecdn Qu\u1ebf (Cinnamomum cassia <\/em>L.J.Presl) v\u00e0 H\u1ed3i (Illicium verum<\/em>\u00a0Hook.f) t\u1ea1i
\nVi\u1ec7t Nam<\/td>\n		Damage status and some biology characteristics of (Alcidodes<\/em> sp.) snout weevil (Cinnamomum cassia<\/em> L.J.Presl) and (Illicium verum\u00a0<\/em>Hook. F) in Vietnam<\/td>\nL\u00ea V\u0103n B\u00ecnh
\nNguy\u1ec5n V\u0103n Th\u00e0nh
\nNguy\u1ec5n Ho\u00e0i Thu<\/em><\/td>\n		111<\/td>\n<\/tr>\n
14.<\/td>\nT\u00ecnh h\u00ecnh g\u00e2y h\u1ea1i v\u00e0 m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m sinh h\u1ecdc c\u1ee7a lo\u00e0i S\u00e2u cu\u1ed1n l\u00e1 \u0111\u1ea7u \u0111en (Herpetogramma<\/em> sp.)
\nh\u1ea1i c\u00e2y Tr\u00f4m (Sterculia<\/em> foetida<\/em> L.) t\u1ea1i Nam
\nTrung B\u1ed9<\/td>\n		Damage status and some biological characteristics of Herpetogramma<\/em> sp. damaging Sterrculia foetida<\/em> in South central, Vietnam<\/td>\nNguy\u1ec5n V\u0103n Th\u00e0nh
\nL\u00ea V\u0103n B\u00ecnh
\nNguy\u1ec5n Qu\u1ed1c Th\u1ed1ng v\u00e0
\nNguy\u1ec5n Ho\u00e0i Thu<\/em><\/td>\n		118<\/td>\n<\/tr>\n
15.<\/td>\nB\u01b0\u1edbc \u0111\u1ea7u x\u00e1c \u0111\u1ecbnh nguy\u00ean nh\u00e2n g\u00e2y b\u1ec7nh th\u1ed1i m\u0103ng tre b\u00e1t \u0111\u1ed9 t\u1ea1i t\u1ec9nh Y\u00ean B\u00e1i<\/td>\nAn initial determination of the cause of emerging shoot rot disease associated with sweet bamboo (Dendrocalamus latiflorus<\/em>) in Yen Bai province<\/td>\nTr\u1ea7n Xu\u00e2n H\u01b0ng<\/em><\/td>\n126<\/td>\n<\/tr>\n
16.<\/td>\n\u1ea2nh h\u01b0\u1edfng c\u1ee7a h\u1ed7n h\u1ee3p keo nh\u1ef1a th\u00f4ng v\u00e0 ax\u00edt boric \u0111\u1ebfn m\u1ed9t s\u1ed1 t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a g\u1ed7 B\u1ed3 \u0111\u1ec1<\/td>\nEffects of the mixture of rosin sizing agent and boric acid on some mechanical properties of Styrax wood<\/td>\nNguy\u1ec5n Th\u1ecb Thanh Hi\u1ec1n
\nNguy\u1ec5n Th\u1ecb Minh Nguy\u1ec7t
\nTr\u1ea7n V\u0103n Ch\u1ee9
\nTr\u1ea7n Nho C\u01b0\u01a1ng<\/em><\/td>\n		135<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/a>TH\u1ef0C TR\u1ea0NG S\u1eec D\u1ee4NG C\u00c2Y THU\u1ed0C T\u1ea0I X\u00c3 PH\u00da \u0110\u00d4, HUY\u1ec6N PH\u00da L\u01af\u01a0NG, T\u1ec8NH TH\u00c1I NGUY\u00caN<\/p>\n

<\/a><\/a>Tr\u1ecbnh \u0110\u00ecnh Kh\u00e11<\/sup>, Th\u00e0o A D\u00ecnh2<\/sup>, Ng\u1ea3i S\u00ecnh Pao2<\/sup>, Nguy\u1ec5n Th\u1ecb Thu Hi\u1ec1n2*<\/sup><\/p>\n

1 <\/sup>Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Th\u1ee7y L\u1ee3i, H\u00e0 N\u1ed9i
\n2 <\/sup>Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc N\u00f4ng L\u00e2m Th\u00e1i Nguy\u00ean<\/p>\n\n\n\n\n
T\u00d3M T\u1eaeT<\/p>\n

Nghi\u00ean c\u1ee9u n\u00e0y \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh nh\u1eb1m \u0111\u00e1nh gi\u00e1 th\u1ef1c tr\u1ea1ng ngu\u1ed3n t\u00e0i nguy\u00ean c\u00e2y thu\u1ed1c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u1ed9ng \u0111\u1ed3ng d\u00e2n t\u1ed9c S\u00e1n Chay, S\u00e1n Ch\u00ed v\u00e0 M\u00f4ng t\u1ea1i x\u00e3 Ph\u00fa \u0110\u00f4, huy\u1ec7n Ph\u00fa L\u01b0\u01a1ng, t\u1ec9nh Th\u00e1i Nguy\u00ean. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p s\u1eed d\u1ee5ng g\u1ed3m c\u00f3: Thu th\u1eadp m\u1eabu v\u1eadt, ph\u1ecfng v\u1ea5n, \u0111\u1ecbnh danh t\u00ean lo\u00e0i, \u0111\u00e1nh gi\u00e1 t\u00ednh \u0111a d\u1ea1ng ngu\u1ed3n t\u00e0i nguy\u00ean c\u00e2y thu\u1ed1c v\u00e0 \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 nguy c\u1ea5p c\u1ee7a c\u00e1c lo\u00e0i c\u00e2y thu\u1ed1c. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u b\u01b0\u1edbc \u0111\u1ea7u \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c 104 lo\u00e0i c\u00e2y thu\u1ed1c thu\u1ed9c 98 chi, 67 h\u1ecd \u0111\u01b0\u1ee3c c\u1ed9ng \u0111\u1ed3ng d\u00e2n t\u1ed9c \u1edf khu v\u1ef1c nghi\u00ean c\u1ee9u s\u1eed d\u1ee5ng trong ph\u00f2ng v\u00e0 ch\u1eefa b\u1ec7nh cho ng\u01b0\u1eddi d\u00e2n. C\u00e2y thu\u1ed1c thu\u1ed9c 6 d\u1ea1ng s\u1ed1ng ch\u00ednh, trong \u0111\u00f3 t\u1eadp trung ph\u1ea7n l\u1edbn \u1edf 3 d\u1ea1ng s\u1ed1ng g\u1ed3m: Th\u00e2n th\u1ea3o (43,27%), d\u00e2y leo (21,15%), b\u1ee5i (15,38%). C\u00e2y th\u01b0\u1eddng ph\u00e2n b\u1ed1 \u1edf c\u00e1c d\u1ea1ng sinh c\u1ea3nh nh\u01b0: S\u1ed1ng xung quanh l\u00e0ng x\u00f3m, l\u00e0ng b\u1ea3n, v\u01b0\u1eddn; s\u1ed1ng \u1edf r\u1eebng; s\u1ed1ng \u1edf \u0111\u1ed3i c\u00e2y b\u1ee5i, \u0111\u1ed3i tr\u1ecdc, tr\u1ea3ng c\u1ecf; s\u1ed1ng \u1edf ven s\u00f4ng. Trong 7 b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m thu\u1ed1c c\u00f3 4 b\u1ed9 ph\u1eadn l\u00e0 c\u1ee7, th\u00e2n, l\u00e1 v\u00e0 c\u1ea3 c\u00e2y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nhi\u1ec1u nh\u1ea5t. Nghi\u00ean c\u1ee9u \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c 17 nh\u00f3m b\u1ec7nh \u0111\u01b0\u1ee3c ch\u1eefa tr\u1ecb b\u1eb1ng kinh nghi\u1ec7m s\u1eed d\u1ee5ng c\u00e2y thu\u1ed1c c\u1ee7a c\u00e1c c\u1ed9ng \u0111\u1ed3ng d\u00e2n t\u1ed9c t\u1ea1i khu v\u1ef1c nghi\u00ean c\u1ee9u, trong \u0111\u00f3 c\u00f3 4 nh\u00f3m b\u1ec7nh chi\u1ebfm t\u1ef7 l\u1ec7 cao nh\u1ea5t: b\u1ec7nh v\u1ec1 \u0111\u01b0\u1eddng ti\u00eau h\u00f3a; b\u1ec7nh v\u1ec1 x\u01b0\u01a1ng kh\u1edbp, h\u1ec7 v\u1eadn \u0111\u1ed9ng; b\u1ec7nh v\u1ec1 \u0111\u01b0\u1eddng ti\u1ebft ni\u1ec7u; b\u1ec7nh v\u1ec1 gan. Ngo\u00e0i ra, k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u n\u00e0y \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c c\u00f3 9 lo\u00e0i c\u00e2y thu\u1ed1c c\u00f3 nguy c\u01a1 b\u1ecb tuy\u1ec7t ch\u1ee7ng \u0111\u01b0\u1ee3c ghi nh\u1eadn \u1edf khu v\u1ef1c nghi\u00ean c\u1ee9u.<\/p>\n

T\u1eeb kh\u00f3a:<\/em><\/strong> C\u00e2y thu\u1ed1c, \u0111a d\u1ea1ng, Ph\u00fa \u0110\u00f4, Ph\u00fa L\u01b0\u01a1ng, Th\u00e1i Nguy\u00ean<\/td>\n<\/tr>\n

\n

<\/a><\/a>Status of using medicinal plants in Phu Do commune, Phu Luong district, Thai Nguyen province<\/strong><\/p>\n

This study was conducted to assess the diversity of medicinal plant resources in San Chay, San Chi and Mong ethnic minority communities in Phu Do commune, Phu Luong district, Thai Nguyen province. The methods used for collecting data were method of specimen collection, interview method, identification of the species name, method of medicinal plant resources diversity assessment, method of endangered medicinal plants level assessment. The results of the research have identified initially 104 species of medicinal plants of 98 genera and 67 families which the ethnic minority communities have used for disease prevention and treatment. Medicinal plants belong to 6 main life forms, most of which are concentrated in 3 life forms: Herbaceous (43.27%), vines (21.15%), shrub (15.38%). The trees are often distributed in the form of habitats such as: Living around villages, gardens; live in the forest; living in shrub hills, bare hills, grassy grass; live on the riverside. In 7 the parts used as medicines, there are 4 parts of tubers, stems, leaves and whole plant are most used. The study identified 17 groups of diseases treated with the experience of using medicinal plants of ethnic communities in the study area, of which 4 groups accounted for the highest proportion: gastrointestinal diseases; diseases of the bones, joints, motor system; urinary tract diseases; liver disease. Besides, the results of this study have identified 9 species of endangered medicinal plants recorded in the research area.<\/p>\n

Keywords:<\/em><\/strong> Diversity, medicinal plants, Phu Do commune, Phu Luong district, Thai Nguyen province<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/a>NGHI\u00caN C\u1ee8U NH\u00c2N GI\u1ed0NG In vitro<\/em> C\u00c1C GIA \u0110\u00ccNH \u01afU VI\u1ec6T KEO TAI T\u01af\u1ee2NG (Acacia mangium<\/em> Willd.) PH\u1ee4C V\u1ee4 TR\u1ed2NG R\u1eeaNG D\u00d2NG V\u00d4 T\u00cdNH THEO GIA \u0110\u00ccNH<\/p>\n

<\/a><\/a>L\u01b0u Th\u1ecb Qu\u1ef3nh1<\/sup>, La \u00c1nh D\u01b0\u01a1ng1<\/sup>, Ph\u00ed H\u1ed3ng H\u1ea3i2<\/sup>, Nghi\u00eam Qu\u1ef3nh Chi1
\n<\/sup>\u0110\u1ed3ng Th\u1ecb \u01afng1<\/sup>, Tri\u1ec7u Th\u1ecb Thu H\u00e0<\/p>\n

1<\/sup>Vi\u1ec7n Nghi\u00ean c\u1ee9u Gi\u1ed1ng v\u00e0 C\u00f4ng ngh\u1ec7 sinh h\u1ecdc L\u00e2m nghi\u1ec7p
\n2 <\/sup>Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/p>\n\n\n\n\n
T\u00d3M T\u1eaeT<\/p>\n

Tr\u1ed3ng r\u1eebng v\u00f4 t\u00ednh theo gia \u0111\u00ecnh (CFF – Clonal Family Forestry) l\u00e0 ph\u01b0\u01a1ng ph\u00e1p nh\u1eb1m nh\u00e2n gi\u1ed1ng sinh d\u01b0\u1ee1ng h\u00e0ng lo\u1ea1t c\u00e1c c\u00e1 th\u1ec3 \u01b0u vi\u1ec7t trong c\u00e1c gia \u0111\u00ecnh \u01b0u vi\u1ec7t, kh\u00f4ng gi\u1eef l\u1ea1i d\u00f2ng v\u00f4 t\u00ednh \u0111\u1ed3ng nh\u1ea5t. \u1ee8ng d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y nghi\u00ean c\u1ee9u v\u1ec1 nh\u00e2n gi\u1ed1ng cho 10 gia \u0111\u00ecnh Keo tai t\u01b0\u1ee3ng c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng di truy\u1ec1n \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n. M\u1ee5c \u0111\u00edch \u0111\u01b0a k\u1ef9 thu\u1eadt nh\u00e2n gi\u1ed1ng CFF cho Keo tai t\u01b0\u1ee3ng b\u1eb1ng nu\u00f4i c\u1ea5y m\u00f4 v\u00e0o s\u1ea3n xu\u1ea5t gi\u00fap t\u1ea1o ra s\u1ed1 l\u01b0\u1ee3ng l\u1edbn c\u00e2y gi\u1ed1ng c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng nh\u1eb1m m\u1edf r\u1ed9ng c\u00f3 hi\u1ec7u qu\u1ea3 ph\u01b0\u01a1ng ph\u00e1p tr\u1ed3ng r\u1eebng v\u00f4 t\u00ednh theo gia \u0111\u00ecnh. Ph\u01b0\u01a1ng ph\u00e1p kh\u1eed tr\u00f9ng cho 10 l\u00f4 h\u1ea1t Keo tai t\u01b0\u1ee3ng \u0111\u1ea1t hi\u1ec7u qu\u1ea3 t\u1ed1t nh\u1ea5t khi s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p 2 lo\u1ea1i ch\u1ea5t kh\u1eed tr\u00f9ng: dung d\u1ecbch oxy gi\u00e0 H2<\/sub>O2 <\/sub>20% v\u1edbi th\u1eddi gian 30 ph\u00fat v\u00e0 dung d\u1ecbch Natri Dichloroisocyanutrale\u00a0NaDCC 1% v\u1edbi th\u1eddi gian 10 ph\u00fat, t\u1ef7 l\u1ec7 m\u1eabu s\u1ea1ch \u0111\u1ea1t 84,4%, h\u1ea1t b\u1eaft \u0111\u1ea7u n\u1ea3y m\u1ea7m sau 3 ng\u00e0y, sau 5 ng\u00e0y h\u1ea1t n\u1ea3y m\u1ea7m ho\u00e0n to\u00e0n. M\u00f4i tr\u01b0\u1eddng nh\u00e2n nhanh ch\u1ed3i th\u00edch h\u1ee3p l\u00e0: MS* (MS c\u1ea3i ti\u1ebfn) + 1,5 mg\/l BAP + 30 g\/l \u0111\u01b0\u1eddng + 4,25 g\/l Agar cho h\u1ec7 s\u1ed1 nh\u00e2n ch\u1ed3i 2,9 l\u1ea7n, chi\u1ec1u cao ch\u1ed3i \u0111\u1ea1t 2,7 cm v\u00e0 t\u1ef7 l\u1ec7 ch\u1ed3i h\u1eefu hi\u1ec7u \u0111\u1ea1t 71,8%. M\u00f4i tr\u01b0\u1eddng k\u00edch th\u00edch t\u1ea1o r\u1ec5 t\u1ed1t nh\u1ea5t l\u00e0:1\/2MS* + 2,0 mg\/l IBA + 15 g\/l \u0111\u01b0\u1eddng + 4,3 g\/l Agar, v\u1edbi t\u1ef7 l\u1ec7 ch\u1ed3i ra r\u1ec5 \u0111\u1ea1t 96,7%, s\u1ed1 r\u1ec5\/c\u00e2y l\u00e0 2,7 r\u1ec5 v\u00e0 chi\u1ec1u d\u00e0i r\u1ec5 \u0111\u1ea1t 1,5 cm. Th\u1eddi gian hu\u1ea5n luy\u1ec7n c\u00e2y th\u00edch h\u1ee3p l\u00e0 20 – 30 ng\u00e0y cho t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a c\u00e2y con ngo\u00e0i v\u01b0\u1eddn \u01b0\u01a1m \u0111\u1ea1t tr\u00ean 75%. Sau 7 – 8 chu k\u1ef3 nh\u00e2n ch\u1ed3i v\u1edbi m\u1ed7i chu k\u1ef3 l\u00e0 25 ng\u00e0y c\u1ee5m ch\u1ed3i Keo tai t\u01b0\u1ee3ng b\u1eaft \u0111\u1ea7u gi\u00e0 h\u00f3a h\u1ec7 s\u1ed1 nh\u00e2n gi\u1ea3m m\u1ea1nh, v\u00ec v\u1eady c\u1ea7n ti\u1ebfn h\u00e0nh h\u1ee7y m\u1eabu v\u00e0 v\u00e0o m\u1eabu m\u1edbi \u0111\u1ec3 ti\u1ebfp t\u1ee5c s\u1ea3n xu\u1ea5t. V\u1edbi k\u1ebft qu\u1ea3 nh\u00e2n ch\u1ed3i, c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh nhanh sau 7 – 8 chu k\u1ef3 nh\u00e2n ch\u1ed3i t\u1eeb 1 h\u1ea1t Keo tai t\u01b0\u1ee3ng c\u00f3 th\u1ec3 t\u1ea1o \u0111\u01b0\u1ee3c 1.800 – 1.900 c\u00e2y con gi\u1ed1ng \u0111\u1ee7 \u0111i\u1ec1u ki\u1ec7n xu\u1ea5t v\u01b0\u1eddn sau 3 th\u00e1ng nu\u00f4i d\u01b0\u1ee1ng.<\/p>\n

T\u1eeb kh\u00f3a:<\/em><\/strong> Keo tai t\u01b0\u1ee3ng, tr\u1ed3ng r\u1eebng d\u00f2ng v\u00f4 t\u00ednh theo gia \u0111\u00ecnh, nh\u00e2n nhanh ch\u1ed3i, k\u00edch th\u00edch t\u1ea1o r\u1ec5<\/td>\n<\/tr>\n

\n

In vitro<\/em> propagation for superior families of Acacia magium<\/em> Willd. providing for clonal family forestry<\/strong><\/p>\n

Clonal Family Forestry (CFF) is a method for vegetative propagation of a series of preeminent individuals in superior families, without keeping the homogeneous clones. The aim of the research was to introduce the CFF propagation technique for Acacia mangium<\/em> by tissue culture for production which will help create a large number of quality seedlings and expand the family clonal afforestation method. The CFF method was applied to 10 families of Acacia that had shown superior genetic quality. The best disinfection method was a combination of 2 disinfectants; 20% hydrogen peroxide solution for 30 minutes and 1% Natri Dichloroisocyanutrale solution for 10 minutes which achieved a clean sample rate of 84.4%, reached germination after 3 days and fully germinated after 5 days. The most suitable medium for rapid shoot multiplication was: MS * (Improved MS) + 1.5 mg\/l BAP + 30 g\/l sugar + 4.25 g\/l Agar for shoot multiplier 2.9 times, producing a bud height of 2.7 cm with an effective rate of shoot of 71.8%. The best rooting stimulating medium was: 1\/2MS * + 2.0 mg\/l IBA + 15 g\/l of sugar + 4.3 g\/liter of Agar, resulting in a root shoot rate of 96.7%, 2.7 roots\/plants and root length of 1.5 cm. The appropriate training time was 20 – 30 days for the survival rate of seedlings outside the nursery to reach over 75%. After 7 – 8 bud multiplication cycles, with each cycle of 25 days, Acacia bud clusters began to age and the multiplier factor decreased, hence it was necessary to destroy and replace the sample to continue production. The results of the shoot multiplication show that after 7 – 8 bud multiplication cycles, 1 Acacia mangium<\/em> seed produces approximately 1,800 – 1,900 seedlings eligible for outplanting after 3 months of nurturing.<\/p>\n

Keywords:<\/em><\/strong> Acacia, plantation of clonal forest according to family, fast multiplication of buds, stimulating root formation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/a>NGHI\u00caN C\u1ee8U NH\u00c2N GI\u1ed0NG CHO M\u1ed8T S\u1ed0 D\u00d2NG KEO TAM B\u1ed8I (X101, X102) M\u1edaI \u0110\u01af\u1ee2C C\u00d4NG NH\u1eacN GI\u1ed0NG B\u1eb0NG PH\u01af\u01a0NG PH\u00c1P NU\u00d4I C\u1ea4Y M\u00d4 T\u1ebe B\u00c0O<\/p>\n

<\/a><\/a>\u0110\u1ed3ng Th\u1ecb \u01afng, Nghi\u00eam Qu\u1ef3nh Chi, L\u01b0u Th\u1ecb Qu\u1ef3nh, V\u0103n Thu Huy\u1ec1n<\/p>\n

Vi\u1ec7n Nghi\u00ean c\u1ee9u Gi\u1ed1ng v\u00e0 C\u00f4ng ngh\u1ec7 Sinh h\u1ecdc L\u00e2m nghi\u1ec7p<\/p>\n\n\n\n\n
T\u00d3M T\u1eaeT<\/p>\n

\u0110a b\u1ed9i h\u00f3a l\u00e0 s\u1ef1 t\u0103ng b\u1ed9i b\u1ed9 nhi\u1ec5m s\u1eafc th\u1ec3 \u0111\u01a1n b\u1ed9i trong m\u1ed9t t\u1ebf b\u00e0o ho\u1eb7c c\u00f9ng lo\u00e0i (th\u1ec3 t\u1ef1 \u0111a b\u1ed9i) ho\u1eb7c c\u1ee7a 2 lo\u00e0i kh\u00e1c nhau (th\u1ec3 d\u1ecb \u0111a b\u1ed9i) v\u00e0 l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng t\u1ef1 nhi\u00ean, xu\u1ea5t hi\u1ec7n t\u01b0\u01a1ng \u0111\u1ed1i hi\u1ebfm \u1edf c\u00e1c lo\u00e0i \u0111\u1ed9ng v\u1eadt, song kh\u00e1 ph\u1ed5 bi\u1ebfn \u1edf c\u00e1c lo\u00e0i th\u1ef1c v\u1eadt (kho\u1ea3ng 70% lo\u00e0i th\u1ef1c v\u1eadt c\u00f3 hoa) v\u1edbi t\u1ea7n su\u1ea5t kh\u00e1c nhau. Trong l\u00e2m nghi\u1ec7p, vi\u1ec7c ch\u1ecdn t\u1ea1o v\u00e0 s\u1eed d\u1ee5ng gi\u1ed1ng \u0111a b\u1ed9i l\u00e0 m\u1ed9t h\u01b0\u1edbng \u0111i m\u1edbi v\u00e0 k\u1ef3 v\u1ecdng c\u00f3 \u0111\u01b0\u1ee3c nh\u1eefng gi\u1ed1ng m\u1edbi v\u1edbi s\u1ef1 kh\u00e1c bi\u1ec7t l\u1edbn v\u1ec1 ki\u1ec3u gen v\u00e0 ki\u1ec3u h\u00ecnh. K\u1ebft qu\u1ea3 c\u1ee7a vi\u1ec7c nh\u00e2n l\u00ean v\u1ec1 s\u1ed1 l\u01b0\u1ee3ng nhi\u1ec5m s\u1eafc th\u1ec3 s\u1ebd d\u1eabn \u0111\u1ebfn t\u0103ng li\u1ec1u l\u01b0\u1ee3ng gen, t\u0103ng m\u1ee9c \u0111\u1ed9 d\u1ecb h\u1ee3p t\u1eed, t\u0103ng m\u1ee9c \u0111\u1ed9 t\u01b0\u01a1ng t\u00e1c gi\u1eefa th\u00f4ng tin di truy\u1ec1n. Nghi\u00ean c\u1ee9u nh\u00e2n gi\u1ed1ng b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p nu\u00f4i c\u1ea5y m\u00f4 cho m\u1ed9t s\u1ed1 d\u00f2ng keo tam b\u1ed9i (X101, X102)<\/em> m\u1edbi \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn gi\u1ed1ng s\u1ebd g\u00f3p ph\u1ea7n ho\u00e0n hi\u1ec7n quy tr\u00ecnh ch\u1ecdn t\u1ea1o gi\u1ed1ng keo tam b\u1ed9i, l\u00e0m c\u01a1 s\u1edf x\u00e2y d\u1ef1ng chi\u1ebfn l\u01b0\u1ee3c c\u1ea3i thi\u1ec7n gi\u1ed1ng \u0111a b\u1ed9i cho c\u00e1c lo\u00e0i c\u00e2y Keo nhi\u1ec7t \u0111\u1edbi \u1edf Vi\u1ec7t Nam. K\u1ebft qu\u1ea3 nh\u00e2n gi\u1ed1ng b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p nu\u00f4i c\u1ea5y m\u00f4 cho m\u1ed9t s\u1ed1 d\u00f2ng keo tam b\u1ed9i cho th\u1ea5y vi\u1ec7c s\u1eed d\u1ee5ng ch\u1ed3i v\u01b0\u1ee3t hay ch\u1ed3i n\u00e1ch l\u00e0m v\u1eadt li\u1ec7u v\u00e0o m\u1eabu, kh\u1eed tr\u00f9ng b\u1eb1ng HgCl2<\/sub> 0,05% trong th\u1eddi gian 5 ph\u00fat cho hi\u1ec7u qu\u1ea3 cao nh\u1ea5t: t\u1ef7 l\u1ec7 m\u1eabu s\u1ed1ng (80%); t\u1ef7 l\u1ec7 b\u1eadt ch\u1ed3i h\u1eefu hi\u1ec7u (28,4%). Tuy nhi\u00ean, vi\u1ec7c s\u1eed d\u1ee5ng javen 3% trong th\u1eddi gian 20 ph\u00fat c\u0169ng cho hi\u1ec7u qu\u1ea3 kh\u00e1 t\u1ed1t: t\u1ef7 l\u1ec7 m\u1eabu s\u1ed1ng (70,6%); t\u1ef7 l\u1ec7 b\u1eadt ch\u1ed3i h\u1eefu hi\u1ec7u (18,2%). \u0110\u1ec3 gi\u1ea3m b\u1edbt \u0111\u1ed9c h\u1ea1i cho ng\u01b0\u1eddi d\u00f9ng v\u00e0 cho m\u00f4i tr\u01b0\u1eddng th\u00ec vi\u1ec7c d\u00f9ng javel trong kh\u1eed tr\u00f9ng \u0111\u01b0\u1ee3c khuy\u1ebfn kh\u00edch h\u01a1n l\u00e0 d\u00f9ng HgCl2<\/sub> m\u1eb7c d\u00f9 hi\u1ec7u qu\u1ea3 k\u00e9m h\u01a1n. C\u00e1c c\u1ee5m ch\u1ed3i h\u1eefu hi\u1ec7u \u0111\u01b0\u1ee3c nu\u00f4i c\u1ea5y ti\u1ebfp trong m\u00f4i tr\u01b0\u1eddng Murashige v\u00e0 Skoog c\u1ea3i ti\u1ebfn (MS) c\u00f3 b\u1ed5 sung \u0111i\u1ec1u h\u00f2a sinh tr\u01b0\u1edfng ri\u00eang l\u1ebb ho\u1eb7c t\u1ed5 h\u1ee3p. S\u1ed1 ch\u1ed3i\/c\u1ee5m cao nh\u1ea5t \u0111\u1ea1t \u0111\u01b0\u1ee3c trong m\u00f4i tr\u01b0\u1eddng MS* +1,0 mg\/l BAP + 0,25 mg\/l GA3 <\/sub>(5,0 – 5,5 ch\u1ed3i\/c\u1ee5m) v\u00e0 t\u1ef7 l\u1ec7 ch\u1ed3i h\u1eefu hi\u1ec7u (48,6 – 51,9%). Ch\u1ed3i h\u1eefu hi\u1ec7u \u0111\u1ea1t ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c ra r\u1ec5 trong m\u00f4i tr\u01b0\u1eddng 1\/2MS* + 2 mg\/l IBA, t\u1ef7 l\u1ec7 ra r\u1ec5 \u0111\u1ea1t 78,4 – 80,1%.<\/p>\n

T\u1eeb kh\u00f3a:<\/em><\/strong> Nu\u00f4i c\u1ea5y m\u00f4, keo tam b\u1ed9i<\/td>\n<\/tr>\n

\n

<\/a><\/a>Study on propagation of new triploid acacia (X101, X102) by tissue culture method<\/strong><\/p>\n

Polyploid is a natural phenomenon. Polyploid in animals is rather rare. However, it is quite common in plants, occurring in more than 70% of flowering plants. In forestry, the selection and use of polyploid varieties is a new direction and it is expected to have new varieties with large differences in genotypes and phenotypes, because forest trees are often heterozygous. Research on tissue culture method for some promising triploid acacia lines (X101, X102) will contribute to the completion of the triploid breeding process, as well as a basis for creating a strategy to improve the variety polyploid for tropical Acacia species in Vietnam. Tissue culture method results for a number of triploid colloidal lines showed that the use of excess shoots or axillary buds sterilized with 0.05% HgCl2<\/sub> for 5 minutes has the highest efficiency: the survival rate (80%); the adventitious shoot rate (28.4%). Beside, the use of 3% javel solution for 20 minutes also gave a quite good result: the survival rate (70.6%); the adventitious shoot rate (18.2%). To protect the environment and human health, javel solution is recommended to use in disinfection. Effective clusters of shoots were further cultured in Murashige and Skoog modified medium (MS) with supplementation of individual or synthetic growth. The highest number of shoots\/cluster was achieved in MS * + 1.0 mg\/l BAP + 0.25 mg\/l GA3 (5.0 – 5.5 shoots\/cluster) and the rate of effective shoots (48.6 – 51.9%). Effective shoots were up to the standard for rooting in 1\/2MS * + 2 mg\/l IBA, the rooting rate was 78.4 – 80.1%.<\/p>\n

Keywords:<\/em><\/strong> Tissue culture method, triploid acacia<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/a>NGHI\u00caN C\u1ee8U K\u1ef8 THU\u1eacT NH\u00c2N GI\u1ed0NG C\u00c2Y G\u1ee4 LAU (Sindora tonkinensis <\/em>A. Chev. Ex K. & S. S. Larsen) T\u1eea H\u1ea0T \u1ede GIAI \u0110O\u1ea0N V\u01af\u1edcN \u01af\u01a0M<\/p>\n

<\/a><\/a>Nguy\u1ec5n Th\u1ecb Kim Vui, Nguy\u1ec5n Th\u1ecb Li\u1ec7u, V\u0169 \u0110\u1ee9c B\u00ecnh, Nguy\u1ec5n H\u1ea3i Th\u00e0nh,
\nNguy\u1ec5n Th\u1ecb Thanh Nga, L\u00ea Xu\u00e2n To\u00e0n, L\u00ea C\u00f4ng \u0110\u1ecbnh<\/p>\n

Trung t\u00e2m Khoa h\u1ecdc L\u00e2m nghi\u1ec7p B\u1eafc Trung B\u1ed9<\/p>\n\n\n\n\n
T\u00d3M T\u1eaeT<\/p>\n

Gu\u0323 lau la\u0300 c\u00e2y g\u00f4\u0303 l\u01a1\u0301n ba\u0309n \u0111i\u0323a co\u0301 gia\u0301 tri\u0323 s\u01b0\u0309 du\u0323ng la\u0300m \u0111\u00f4\u0300 trang tri\u0301 n\u00f4\u0323i th\u00e2\u0301t v\u00e0 \u0111\u1ed3 gia d\u1ee5ng. B\u00e0i b\u00e1o gi\u1edbi thi\u1ec7u k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u nh\u00e2n gi\u1ed1ng c\u00e2y G\u1ee5 lau t\u1eeb h\u1ea1t \u0111\u1ec3 s\u1ea3n xu\u1ea5t c\u00e2y gi\u1ed1ng ph\u1ee5c v\u1ee5 tr\u1ed3ng r\u1eebng t\u1ea1i c\u00e1c t\u1ec9nh mi\u1ec1n Trung. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u k\u1ef9 thu\u1eadt nh\u00e2n gi\u1ed1ng c\u00e2y G\u1ee5 lau t\u1eeb h\u1ea1t cho th\u1ea5y x\u1eed l\u00fd h\u1ea1t gi\u1ed1ng c\u00e2y G\u1ee5 lau c\u1ea7n d\u00f9ng n\u01b0\u1edbc s\u00f4i 100o<\/sup>C v\u00e0 \u0111\u1ec3 ngu\u1ed9i d\u1ea7n \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng trong 8 gi\u1edd, v\u1edbt h\u1ea1t ra, r\u1eeda s\u1ea1ch v\u00e0 \u0111\u1ec3 r\u00e1o r\u1ed3i \u0111em gieo tr\u00ean lu\u1ed1ng c\u00f3 c\u00e1t \u1ea9m, cho t\u1ef7 l\u1ec7 n\u1ea3y m\u1ea7m cao nh\u1ea5t. Che s\u00e1ng 50% trong giai \u0111o\u1ea1n t\u1eeb khi c\u1ea5y c\u00e2y m\u1ea7m \u0111\u1ebfn giai \u0111o\u1ea1n 3 th\u00e1ng tu\u1ed5i gi\u00fap c\u00e2y con sinh tr\u01b0\u1edfng t\u1ed1t nh\u1ea5t. Nh\u01b0ng t\u1eeb th\u00e1ng th\u1ee9 4 \u0111\u1ebfn th\u00e1ng th\u1ee9 6 che s\u00e1ng 25 – 50% l\u00e0 ph\u00f9 h\u1ee3p. Sau 6 th\u00e1ng c\u00f3 th\u1ec3 d\u1ee1 b\u1ecf gi\u00e0n che ho\u00e0n to\u00e0n \u0111\u1ec3 hu\u1ea5n luy\u1ec7n c\u00e2y con tr\u01b0\u1edbc khi \u0111em tr\u1ed3ng. M\u1eb7c d\u00f9 th\u00e0nh ph\u1ea7n h\u1ed7n h\u1ee3p ru\u1ed9t b\u1ea7u kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a c\u00e2y con nh\u01b0ng \u0111\u00e3 \u1ea3nh h\u01b0\u1edfng r\u00f5 r\u1ec7t \u0111\u1ebfn sinh tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh g\u1ed1c v\u00e0 chi\u1ec1u cao v\u00fat ng\u1ecdn c\u00e2y G\u1ee5 lau giai \u0111o\u1ea1n 6 th\u00e1ng tu\u1ed5i, th\u00e0nh ph\u1ea7n h\u1ed7n h\u1ee3p ru\u1ed9t b\u1ea7u bao g\u1ed3m 89% \u0111\u1ea5t + 10% ph\u00e2n chu\u1ed3ng hoai + 1% l\u00e2n c\u00f3 t\u00e1c d\u1ee5ng t\u1ed1t nh\u1ea5t.<\/p>\n

T\u1eeb kh\u00f3a:<\/em><\/strong> M\u01b0\u0301c \u0111\u00f4\u0323 che s\u00e1ng, G\u1ee5 lau, ty\u0309 l\u00ea\u0323 n\u1ea3y m\u1ea7m, tha\u0300nh ph\u00e2\u0300n ru\u1ed9t b\u1ea7u, sinh tr\u01b0\u01a1\u0309ng c\u00e2y con<\/td>\n<\/tr>\n

\n

<\/a><\/a>Research on propagation of Sindora tonkinensis<\/em> A.Chev.Ex K. & S. S. Larsen from seeds at the nursery stage<\/strong><\/p>\n

Sindora tonkinensis<\/em> A.Chev.Ex K. & S. S. Larsen is a native tree species that is valuable for timber and furniture. This paper presents research results on propagation of Sindora tonkinensis<\/em> using seeds to produce seedlings for afforestation in the Central provinces. Pretreatment in which the seeds were soaked in boiling water and allowed to coll down to room temperature for 8 hours, took out the seeds, washed and let them dry, then sowed in moist sand, giving the highest germination rate. During the first 3 months from sowing, shading 50% was appropriate to give the highest growth. However, from months 4 to 6, shading 25 – 50% was suitable for seedlings. After 6 months, light cover could be completely removed for training seedlings before planting. Although the potting mix component had no effect on the survival of seedlings, it affected to collar diameter on the growth of the diameter and height of Sindora tonkinensis<\/em> seedlings at 6 months of age, the potting mix component consisted of 89% of soil + 10% composted muck + 1% Phosphate had the best effect.<\/p>\n

Keywords:<\/em><\/strong> Shading, Sindora tonkinensis<\/em>, germination percentage, potting mix component, seedling growth<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/a>NH\u00c2N GI\u1ed0NG C\u00c2Y XOAY (Dialium cochinchiensis<\/em> Pierr)\u00a0B\u1eb0NG PH\u01af\u01a0NG PH\u00c1P GI\u00c2M HOM<\/p>\n

<\/a><\/a>Ph\u1ea1m Ti\u1ebfn B\u1eb1ng, Ng\u00f4 V\u0103n C\u1ea7m<\/p>\n

Trung t\u00e2m L\u00e2m nghi\u1ec7p Nhi\u1ec7t \u0111\u1edbi, Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam Trung B\u1ed9 v\u00e0 T\u00e2y Nguy\u00ean<\/p>\n\n\n\n\n
T\u00d3M T\u1eaeT<\/p>\n

Xoay (Dialium cochinchiensis<\/em> Pierr) l\u00e0 c\u00e2y g\u1ed7 l\u1edbn, c\u00f3 gi\u00e1 tr\u1ecb kinh t\u1ebf v\u00e0 b\u1ea3o t\u1ed3n cao. Xoay c\u00f3 ph\u00e2n b\u1ed1 r\u1ed9ng nh\u01b0ng t\u1eadp trung nhi\u1ec1u nh\u1ea5t t\u1ea1i T\u00e2y Nguy\u00ean. B\u00e0i b\u00e1o n\u00e0y tr\u00ecnh b\u00e0y k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u k\u1ef9 thu\u1eadt nh\u00e2n gi\u1ed1ng c\u00e2y Xoay b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p gi\u00e2m hom t\u1ea1i t\u1ec9nh Gia Lai. Th\u00ed nghi\u1ec7m \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n v\u1edbi c\u00e1c lo\u1ea1i ch\u1ea5t \u0111i\u1ec1u h\u00f2a sinh tr\u01b0\u1edfng (NAA v\u00e0 IBA), n\u1ed3ng \u0111\u1ed9 (t\u1eeb 100 – 15.000 ppm), th\u1eddi gian x\u1eed l\u00fd hom (t\u1eeb 6 ph\u00fat t\u1edbi 18 ph\u00fat) v\u00e0 m\u00f9a v\u1ee5 gi\u00e2m hom kh\u00e1c nhau (4 th\u1eddi \u0111i\u1ec3m trong n\u0103m) nh\u1eb1m t\u00ecm ra c\u00f4ng th\u1ee9c gi\u00e2m hom c\u00e2y Xoay c\u00f3 t\u1ef7 l\u1ec7 ra r\u1ec5 cao nh\u1ea5t v\u00e0 ch\u1ec9 s\u1ed1 ra r\u1ec5 t\u1ed1t nh\u1ea5t. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u \u0111\u00e3 x\u00e1c \u0111\u1ecbnh vi\u1ec7c s\u1eed d\u1ee5ng NAA \u1edf n\u1ed3ng \u0111\u1ed9 8.000 ppm, th\u1eddi gian x\u1eed l\u00fd hom 12 ph\u00fat cho k\u1ebft qu\u1ea3 t\u1ed1t nh\u1ea5t v\u1edbi t\u1ef7 l\u1ec7 hom ra r\u1ec5 (R%) \u0111\u1ea1t 80%, ch\u1ec9 s\u1ed1 ra r\u1ec5 (Ri) \u0111\u1ea1t 90,1. Th\u1eddi v\u1ee5 gi\u00e2m hom th\u00edch h\u1ee3p cho c\u00e2y Xoay \u1edf Gia Lai l\u00e0 v\u00e0o th\u00e1ng 3 h\u00e0ng n\u0103m. S\u1ef1 th\u00e0nh c\u00f4ng c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p n\u00e0y cung c\u1ea5p c\u01a1 s\u1edf cho vi\u1ec7c ch\u1ecdn l\u1ecdc d\u00f2ng v\u00f4 t\u00ednh, gi\u00fap t\u1ea1o gi\u1ed1ng \u0111\u1ec3 b\u1ea3o t\u1ed3n ngu\u1ed3n gen c\u00f3 gi\u00e1 tr\u1ecb. C\u00e2y con t\u1ea1o ra theo ph\u01b0\u01a1ng ph\u00e1p n\u00e0y s\u1ebd nhanh ra hoa, \u0111\u1eadu qu\u1ea3, cho thu ho\u1ea1ch qu\u1ea3 s\u1edbm, g\u00f3p ph\u1ea7n khai th\u00e1c v\u00e0 ph\u00e1t tri\u1ec3n ngu\u1ed3n gen c\u00e2y Xoay theo h\u01b0\u1edbng l\u1ea5y g\u1ed7 k\u1ebft h\u1ee3p l\u1ea5y qu\u1ea3 hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n

T\u1eeb kh\u00f3a:<\/em><\/strong> Ch\u1ea5t \u0111i\u1ec1u h\u00f2a sinh tr\u01b0\u1edfng, m\u00f9a v\u1ee5, n\u1ed3ng \u0111\u1ed9, gi\u00e2m hom, Xoay<\/td>\n<\/tr>\n

\n

<\/a><\/a>The propagation results of Dialium cochinchiensis<\/em> Pierr with cutting method<\/strong><\/p>\n

Dialium cochinchiensis<\/em> Pierr is a large timber tree with high value of economic and conservation. In Vietnam, Dialium cochinchiensis<\/em> Pierr has a wide distribution but is most concentrated in the Central Highlands. This study presents the propagation results of Dialium cochinchiensis<\/em> Pierr in Gia Lai province with cutting method. The experiment was tested with different treatments of types of plant growth regulators (NAA and IBA), its concentrations (100 to 15,000 ppm), time of treatment (from 6 to 18 minutes), and cutting seasons (four seasons) aiming to find out the treatments with the highest proportion of rooting and rooting index. The results revealed that treating the cuttings with NAA at 8,000 ppm for 12 minutes leading to the highest proportion of rooting (80% of the cuttings) and rooting index (90.1%). March is the most appropriate season for Dialium cochinchiensis<\/em> Pierr propagation in Gia Lai with the cutting method. This result will provide scientific basis for clonal selection and help mass – produce seedlings of Dialium cochinchiensis<\/em> Pierr as a high – conservation value species. This method also helps shorten the period of growth to maturation of Dialium cochinchiensis<\/em> Pierr and resulting in better outcomes of planting Dialium cochinchiensis<\/em> Pierr for both fruits and timber.<\/p>\n

Keywords:<\/em><\/strong> Plant growth regulators, cutting season, concentration, Dialium cochinchiensis<\/em> Pierr<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/a>\u1ea2NH H\u01af\u1edeNG C\u1ee6A T\u1ec8A TH\u01afA V\u00c0 B\u00d3N PH\u00c2N\u00a0\u0110\u1ebeN SINH TR\u01af\u1edeNG, T\u0102NG TR\u01af\u1edeNG R\u1eeaNG TR\u1ed2NG SA M\u1ed8C (Cunninghamia lanceolata<\/em> (Lamb.) Hook) \u1ede QU\u1ea2NG NINH<\/p>\n

<\/a><\/a>\u0110\u1eb7ng V\u0103n Thuy\u1ebft1<\/sup>, L\u00ea Th\u1ecb Ng\u1ecdc H\u00e02<\/sup>, Nguy\u1ec5n To\u00e0n Th\u1eafng1<\/sup>, \u0110inh H\u1ea3i \u0110\u0103ng1<\/sup>,
\nTr\u1ea7n Anh H\u1ea3i1<\/sup>, D\u01b0\u01a1ng Quang Trung1<\/sup>, L\u00ea Th\u1ecb H\u1ea1nh1<\/sup>, \u0110\u00e0o Trung \u0110\u1ee9c1<\/sup>, Di\u1ec7p Xu\u00e2n Tu\u1ea5n1<\/sup><\/p>\n

1<\/sup>Vi\u1ec7n Nghi\u00ean c\u1ee9u L\u00e2m sinh
\n2<\/sup>Nghi\u00ean c\u1ee9u sinh t\u1ea1i Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/p>\n\n\n\n\n
T\u00d3M T\u1eaeT<\/p>\n

K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u t\u1ec9a th\u01b0a nu\u00f4i d\u01b0\u1ee1ng r\u1eebng tr\u1ed3ng Sa m\u1ed9c \u1edf Qu\u1ea3ng Ninh sau t\u1ec9a th\u01b0a 42 th\u00e1ng cho th\u1ea5y: \u0110\u1ed1i v\u1edbi r\u1eebng tr\u1ed3ng Sa m\u1ed9c 7 tu\u1ed5i \u1edf c\u00f4ng th\u1ee9c m\u1eadt \u0111\u1ed9 \u0111\u1ec3 l\u1ea1i \u0111\u1ea1t t\u0103ng tr\u01b0\u1edfng tr\u1eef l\u01b0\u1ee3ng t\u01b0\u01a1ng \u1ee9ng l\u00e0 m2 (1.100 c\u00e2y\/ha) \u0111\u1ea1t 47,5 m3<\/sup>\/ha, m3 (1.600 c\u00e2y\/ha) \u0111\u1ea1t 44,1 m3<\/sup>\/ha, m1 (3.322 c\u00e2y\/ha) \u0111\u1ea1t 36,4 m3<\/sup>\/ha, ch\u00eanh l\u1ec7ch cao nh\u1ea5t t\u1edbi 8,1 m3<\/sup>\/ha. \u1ede c\u00f4ng th\u1ee9c b\u00f3n ph\u00e2n \u0111\u1ea1t t\u0103ng tr\u01b0\u1edfng tr\u1eef l\u01b0\u1ee3ng t\u1eeb cao xu\u1ed1ng th\u1ea5p l\u00e0 p2 (55g ur\u00ea + 700 g supe l\u00e2n + 50 g kali) \u0111\u1ea1t 61,9 m3<\/sup>\/ha, p1 (kh\u00f4ng b\u00f3n) \u0111\u1ea1t 56,5 m3<\/sup>\/ha, p3 (55 g ur\u00ea + 700 g supe l\u00e2n + 50g kali) \u0111\u1ea1t 53,5 m3<\/sup>\/ha, p4 (400 g ch\u1ebf ph\u1ea9m vi sinh MF1) \u0111\u1ea1t 51,5 m3<\/sup>\/ha, ch\u00eanh l\u1ec7ch cao nh\u1ea5t so v\u1edbi kh\u00f4ng b\u00f3n ph\u00e2n \u0111\u1ea1t 5,4 m3<\/sup>\/ha.\u0110\u1ed1i v\u1edbi r\u1eebng tr\u1ed3ng Sa m\u1ed9c 11 tu\u1ed5i \u1edf c\u00f4ng th\u1ee9c m\u1eadt \u0111\u1ed9 \u0111\u1ec3 l\u1ea1i \u0111\u1ea1t t\u0103ng tr\u01b0\u1edfng tr\u1eef l\u01b0\u1ee3ng t\u01b0\u01a1ng \u1ee9ng l\u00e0 m3 (1.600 c\u00e2y\/ha) \u0111\u1ea1t 59,9 m3<\/sup>\/ha v\u00e0 m2 (1.100 c\u00e2y\/ha) \u0111\u1ea1t 59,6 m3<\/sup>\/ha, m1 (2.796 c\u00e2y\/ha) \u0111\u1ea1t 46,8 m3<\/sup>\/ha, ch\u1ec7nh l\u1ec7ch cao nh\u1ea5t gi\u1eefa c\u00e1c c\u00f4ng th\u1ee9c l\u00e0 13,1 m3<\/sup>\/ha. \u1ede c\u00f4ng th\u1ee9c b\u00f3n ph\u00e2n \u0111\u1ea1t t\u0103ng tr\u01b0\u1edfng tr\u1eef l\u01b0\u1ee3ng t\u01b0\u01a1ng \u1ee9ng: p3 (110 g ur\u00ea + 350 g supe l\u00e2n + 50 g kali) \u0111\u1ea1t 62,0 m3<\/sup>\/ha, p2 (55 g ur\u00ea + 700 g supe l\u00e2n + 50 g kali) \u0111\u1ea1t 59,9 m3<\/sup>\/ha, p1 (kh\u00f4ng b\u00f3n) \u0111\u1ea1t 58,4 m3<\/sup>\/ha, p4 (400g ch\u1ebf ph\u1ea9m vi sinh MF1) \u0111\u1ea1t 58,3 m3<\/sup>\/ha, ch\u00eanh l\u1ec7ch cao nh\u1ea5t gi\u1eefa c\u00e1c c\u00f4ng th\u1ee9c \u0111\u1ea1t 3,7 m3<\/sup>\/ha.<\/p>\n

T\u1eeb kh\u00f3a:<\/em><\/strong> Sa m\u1ed9c, t\u1ec9a th\u01b0a, b\u00f3n ph\u00e2n, Qu\u1ea3ng Ninh<\/td>\n<\/tr>\n

\n

<\/a><\/a>Effects of thinning and fertilizer on Cunninghamia lanceolata<\/em> (Lamb.) Hook plantation growth in Quang Ninh province<\/strong><\/p>\n

Research results of thinning in Cunninghamia lanceolata<\/em> plantation in Quang Ninh province after thinning 42 months showed that the density treatments of 7 year old Cunninghamia lanceolata<\/em> plantation the growing difference in volum was high to low in m2 (1,100 trees\/ha), m3 (1,600 trees\/ha) and m1 (no thinning 3,322 trees\/ha) treatments, respectively 45.5 m3<\/sup>ha–<\/sup>1<\/sup>, 43.1 m3<\/sup>ha-1<\/sup> and 37.4 m3<\/sup>ha–<\/sup>1<\/sup>. The growing difference in volum among the density treatments was 8.1 m3<\/sup>ha–<\/sup>1<\/sup>; In the fertilizer treatments the volume was recorded the same trend that was from high to low, respectively 61.9 m3<\/sup>ha–<\/sup>1<\/sup> (p2 treatment 55g ure + 700g P2<\/sub>O5<\/sub> + 50g K2<\/sub>O), 56.5 m3<\/sup>ha–<\/sup>1<\/sup> (p1 no treatment), 53.5 m3<\/sup>ha–<\/sup>1<\/sup> (p3 treatment 55g ure + 700g P2<\/sub>O5<\/sub> + 50g K2<\/sub>O) and 51.5 m3<\/sup>ha–<\/sup>1<\/sup> (p4 treament 400g MF1), and the difference in volume of growth among the fertilizer treatments was up to 5.4 m3<\/sup>ha-1<\/sup>. For the 11 year old Cunninghamia lanceolata<\/em> plantation, after 42 months thinning in the density treatments, the volume of growth was high to low in m3, m2 and m1 treatments, respectively 59.9 m3<\/sup>ha–<\/sup>1<\/sup>, 50.6 m3<\/sup>ha–<\/sup>1<\/sup> and 46.8 m3<\/sup>ha–<\/sup>1<\/sup>. The growing difference in volum among the density treatments was highest, at 13.1 m3<\/sup>ha–<\/sup>1<\/sup>. In the fertilizer treatments, the volume was experienced from high to low, respectively 62.0 m3<\/sup>ha–<\/sup>1<\/sup> (p3 treatment), 59.9 m3<\/sup>ha–<\/sup>1<\/sup> (p2 treatment), 58.4 m3<\/sup>ha–<\/sup>1<\/sup> (p1 no treatment) and 58.3 m3<\/sup>ha–<\/sup>1<\/sup> (p4 treament), the difference in volume of growth among the fertilizer treatments was recorded at 3.7 m3<\/sup>ha–<\/sup>1<\/sup>.<\/p>\n

Keywords:<\/em><\/strong> Cunninghamia lanceolata<\/em> Lamb. Hook, thinning, fertilizer, Quang Ninh province<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/a>\u1ea2NH H\u01af\u1edeNG C\u1ee6A M\u1ed8T S\u1ed0 NH\u00c2N T\u1ed0 L\u1eacP \u0110\u1ecaA \u0110\u1ebeN SINH TR\u01af\u1edeNG, T\u0102NG TR\u01af\u1edeNG R\u1eeaNG TR\u1ed2NG SA M\u1ed8C (Cunninghamia lanceolata<\/em> (Lamb.) Hook)\u00a0\u1ede V\u00d9NG \u0110\u00d4NG B\u1eaeC B\u1ed8<\/p>\n

<\/a><\/a>\u0110\u1eb7ng V\u0103n Thuy\u1ebft1<\/sup>, Tr\u00e2n B\u00ecnh \u0110\u00e02,<\/sup> L\u00ea Th\u1ecb Ng\u1ecdc H\u00e03<\/sup>, Nguy\u1ec5n To\u00e0n Th\u1eafng1<\/sup>,
\n\u0110inh H\u1ea3i \u0110\u0103ng1<\/sup>, \u0110\u00e0o Trung \u0110\u1ee9c1<\/sup>, D\u01b0\u01a1ng Quang Trung1<\/sup>, L\u00ea Th\u1ecb H\u1ea1nh1<\/sup>, Tr\u1ea7n Anh H\u1ea3i1<\/sup><\/p>\n

1<\/sup>Vi\u1ec7n Nghi\u00ean c\u1ee9u L\u00e2m sinh
\n2<\/sup>H\u1ecdc vi\u1ec7n N\u00f4ng nghi\u1ec7p Vi\u1ec7t Nam
\n3<\/sup>Nghi\u00ean c\u1ee9u sinh t\u1ea1i Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/p>\n\n\n\n\n
T\u00d3M T\u1eaeT<\/p>\n

K\u1ebft qu\u1ea3 ph\u00e2n t\u00edch \u1ea3nh h\u01b0\u1edfng c\u1ee7a m\u1ed9t s\u1ed1 nh\u00e2n t\u1ed1 l\u1eadp \u0111\u1ecba \u0111\u1ebfn sinh tr\u01b0\u1edfng, t\u0103ng tr\u01b0\u1edfng r\u1eebng tr\u1ed3ng Sa m\u1ed9c hi\u1ec7n c\u00f3 \u1edf v\u00f9ng \u0110\u00f4ng B\u1eafc B\u1ed9 cho th\u1ea5y: Sinh tr\u01b0\u1edfng D1,3<\/sub> ch\u1ecbu \u1ea3nh h\u01b0\u1edfng l\u1edbn nh\u1ea5t b\u1edfi c\u00e1c nh\u00e2n t\u1ed1 m\u1eadt \u0111\u1ed9 tr\u1ed3ng (26,11%) v\u00e0 nhi\u1ec7t \u0111\u1ed9 (24,91%), ti\u1ebfp \u0111\u00f3 l\u00e0 dung tr\u1ecdng \u0111\u1ea5t (10,79%), \u0111\u1ed9 d\u1ed1c (8,34%), l\u01b0\u1ee3ng m\u01b0a (6,29%) v\u00e0 nit\u01a1 t\u1ed5ng s\u1ed1 (3,8%). V\u1edbi sinh tr\u01b0\u1edfng Hvn<\/sub>, nh\u00e2n t\u1ed1 n\u1ed9i t\u1ea1i l\u00e0 tu\u1ed5i c\u00e2y c\u00f3 m\u1ee9c \u1ea3nh h\u01b0\u1edfng cao nh\u1ea5t chi\u1ebfm 30,73%; nh\u00e2n t\u1ed1 l\u1eadp \u0111\u1ecba nh\u01b0 nhi\u1ec7t \u0111\u1ed9 chi\u1ebfm 23,50%; \u0111\u1ed9 cao 12,32%; \u0111\u1ed9 d\u1ed1c 10,93%, dung tr\u1ecdng \u0111\u1ea5t 7,41% v\u00e0 nit\u01a1 t\u1ed5ng s\u1ed1 trong \u0111\u1ea5t \u1ea3nh h\u01b0\u1edfng 3,02%. C\u00f3 7 trong t\u1ed5ng s\u1ed1 16 nh\u00e2n t\u1ed1 th\u1ec3 hi\u1ec7n \u0111\u01b0\u1ee3c 77,27% m\u1ee9c \u1ea3nh h\u01b0\u1edfng v\u1edbi tr\u1eef l\u01b0\u1ee3ng r\u1eebng tr\u1ed3ng Sa m\u1ed9c, trong \u0111\u00f3, \u0111\u1ed9 \u0111\u1ed1c c\u00f3 m\u1ee9c \u1ea3nh h\u01b0\u1edfng nhi\u1ec1u nh\u1ea5t 24,36%, nhi\u1ec7t \u0111\u1ed9 trung b\u00ecnh n\u0103m c\u00f3 m\u1ee9c \u1ea3nh h\u01b0\u1edfng 22,28%, tu\u1ed5i r\u1eebng \u1ea3nh h\u01b0\u1edfng 8,39%, th\u00e0nh ph\u1ea7n c\u00e1t 7,24%, Cation \u0111\u1ea5t CEC 4,81% v\u00e0 nit\u01a1 t\u1ed5ng s\u1ed1 \u1ea3nh h\u01b0\u1edfng 4,36%. C\u00f3 7 trong t\u1ed5ng s\u1ed1 16 nh\u00e2n t\u1ed1 gi\u1ea3i th\u00edch \u0111\u01b0\u1ee3c 70,47% m\u1ed1i li\u00ean h\u1ec7 c\u1ee7a c\u00e1c nh\u00e2n t\u1ed1 n\u00e0y v\u1edbi t\u0103ng tr\u01b0\u1edfng tr\u1eef l\u01b0\u1ee3ng b\u00ecnh qu\u00e2n chung, trong \u0111\u00f3, nhi\u1ec7t \u0111\u1ed9 trung b\u00ecnh n\u0103m \u1ea3nh h\u01b0\u1edfng l\u1edbn nh\u1ea5t (23,93%), \u0111\u1ed9 d\u1ed1c (14,79%), th\u00e0nh ph\u1ea7n c\u00e1t (14,61%), tu\u1ed5i r\u1eebng (4,37%) v\u00e0 nit\u01a1 t\u1ed5ng s\u1ed1 (1,88%), th\u00e0nh ph\u1ea7n s\u00e9t (7,32%), dung tr\u1ecdng \u0111\u1ea5t (3,57%). Ph\u00e2n t\u00edch t\u1ed5ng s\u1ed1 20 nh\u00e2n t\u1ed1 g\u1ed3m 16 nh\u00e2n t\u1ed1 l\u1eadp \u0111\u1ecba v\u00e0 4 nh\u00e2n t\u1ed1 n\u1ed9i t\u1ea1i x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c m\u00f4 h\u00ecnh t\u01b0\u01a1ng quan gi\u1eefa tr\u1eef l\u01b0\u1ee3ng l\u00e2m ph\u1ea7n v\u1edbi 11 y\u1ebfu t\u1ed1 l\u00e0
\nM = 605,037 – 9,08654*dbh + 1,19292*do doc + 51,9202*dtrong + 6,6255*G + 8,76694*Hvn<\/sub> + 0,203093*limon – 268,909*log(nhiet do) – 3,39487*log(om) + 8,21362*log(p) + 5,37673*log(tuoi) + 74,1257*log(dt).<\/p>\n

T\u1eeb kh\u00f3a:<\/em><\/strong> Sa m\u1ed9c, l\u1eadp \u0111\u1ecba, t\u0103ng tr\u01b0\u1edfng, v\u00f9ng \u0110\u00f4ng B\u1eafc B\u1ed9<\/td>\n<\/tr>\n

\n

<\/a><\/a>Effect of site factors on the growth of Cunninghamia lanceolata<\/em> (Lamb.) Hook plantations in northeast of Vietnam<\/strong><\/p>\n

The results of analyzing the effects of some site factors on the growth of Cunninghamia lanceolata<\/em> plantations in the Northeast shows: Growth DBH was most influenced by the planting density (26.11%) and temperature (24.91%), soil bulk density (10.79%), slope (8.34%), rainfall (6.29%) and total nitrogen (3.8%). With tree height growth, the intrinsic factor is the age of the tree with the highest effect, accounting for 30.73%; site factors such as temperature account for 23.50%; altitude 12.32%; slope 10.93%, soil bulk density 7.41% and total nitrogen in soil affects 3.02%. There are 7 out of 16 factors, representing 77.27% of the impact on the volume of Cunninghamia lanceolata<\/em> plantations. The slope has the most influence on 24.36%, temperature affects 22.28%, forest age affected 8.39%, sandy element 7.24%, CEC 4.81% and total nitrogen influence 4.36%. Seven out of 16 factors account for 70.47% of the relationship between these factors and the overall average growth of the stock, which is most affected by the annual temperature (23.93%)., slope (14.79%), sand element (14.61%), forest age (4.37%), total nitrogen (1.88%), clay element (7.32%) and soil bulk density (3.57%). Analyzing total 20 variables, including 16 site variables and 4 intrinsic variables, determining the model of the correlation between forest stand reserves with 11 variables: M = 605,037 – 9,08654 * dbh + 1,19292 * do doc + 51,9202 * dtrong + 6,6255 * G + 8,76694 * Hvn<\/sub> + 0,203093 * limon – 268,909 * log (nhiet do) – 3,39487 * log (om) + 8,21362 * log (p) + 5,37673 * log (age) + 74,1257 * log (dt).<\/p>\n

Keywords:<\/em><\/strong> C. lanceolata,<\/em> growth, plantation, variable, wood volume<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/a>\u1ea2NH H\u01af\u1edeNG C\u1ee6A M\u1eacT \u0110\u1ed8 TR\u1ed2NG V\u00c0 C\u01af\u1edcNG \u0110\u1ed8 CH\u0102M S\u00d3C \u0110\u1ebeN SINH TR\u01af\u1edeNG V\u00c0 N\u0102NG SU\u1ea4T R\u1eeaNG TR\u00c0M L\u00c1 D\u00c0I TR\u1ed2NG TR\u00caN \u0110\u1ea4T PH\u00c8N T\u1ea0I TH\u1ea0NH H\u00d3A – LONG AN<\/p>\n

<\/a><\/a>V\u0169 \u0110\u00ecnh H\u01b0\u1edfng, Ph\u00f9ng V\u0103n Khang, Nguy\u1ec5n V\u0103n L\u01b0u, Ki\u1ec1u M\u1ea1nh H\u00e0,
\nNguy\u1ec5n Xu\u00e2n H\u1ea3i, Ninh V\u0103n Tu\u1ea5n<\/p>\n

Trung t\u00e2m \u1ee8ng d\u1ee5ng Khoa h\u1ecdc K\u1ef9 thu\u1eadt L\u00e2m nghi\u1ec7p Nam B\u1ed9<\/p>\n\n\n\n\n
T\u00d3M T\u1eaeT<\/p>\n

Th\u00ed nghi\u1ec7m m\u1eadt \u0111\u1ed9 tr\u1ed3ng (4 lo\u1ea1i m\u1eadt \u0111\u1ed9 tr\u1ed3ng: 20.000 c\u00e2y\/ha, 15.000 c\u00e2y\/ha, 10.000 c\u00e2y\/ha, 7.500 c\u00e2y\/ha) k\u1ebft h\u1ee3p v\u1edbi bi\u1ec7n ph\u00e1p ch\u0103m s\u00f3c r\u1eebng trong 3 n\u0103m \u0111\u1ea7u (3 m\u1ee9c: kh\u00f4ng ch\u0103m s\u00f3c, ch\u0103m s\u00f3c 1 l\u1ea7n\/n\u0103m, ch\u0103m s\u00f3c 2 l\u1ea7n\/n\u0103m) \u0111\u01b0\u1ee3c tri\u1ec3n khai t\u1ea1i huy\u1ec7n Th\u1ea1nh H\u00f3a, t\u1ec9nh Long An nh\u1eb1m x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c m\u1eadt \u0111\u1ed9 tr\u1ed3ng t\u1ed1i \u01b0u v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 ch\u0103m s\u00f3c r\u1eebng ph\u00f9 h\u1ee3p nh\u1ea5t l\u00e0m t\u0103ng t\u1ef7 l\u1ec7 s\u1ed1ng, th\u00fac \u0111\u1ea9y sinh tr\u01b0\u1edfng v\u00e0 n\u00e2ng cao n\u0103ng su\u1ea5t r\u1eebng. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u ban \u0111\u1ea7u cho th\u1ea5y ch\u0103m s\u00f3c r\u1eebng 2 l\u1ea7n\/n\u0103m l\u00e0m gi\u1ea3m t\u1ef7 l\u1ec7 c\u00e2y ch\u1ebft trong 2 n\u0103m \u0111\u1ea7u; khi r\u1eebng tr\u1ed3ng \u0111\u01b0\u1ee3c 3 tu\u1ed5i m\u1eadt \u0111\u1ed9 tr\u1ed3ng 20.000 c\u00e2y\/ha c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng th\u1ea5p nh\u1ea5t (73%), t\u1ef7 l\u1ec7 s\u1ed1ng \u1edf c\u00e1c m\u1eadt \u0111\u1ed9 tr\u1ed3ng c\u00f2n l\u1ea1i \u0111\u1ea1t 79%. Tr\u1ed3ng r\u1eebng c\u00f3 m\u1eadt \u0111\u1ed9 t\u1eeb 10.000 c\u00e2y\/ha tr\u1edf l\u00ean c\u00e2y sinh tr\u01b0\u1edfng nhanh h\u01a1n v\u1ec1 chi\u1ec1u cao so v\u1edbi m\u1eadt \u0111\u1ed9 tr\u1ed3ng 7.500 c\u00e2y\/ha. C\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 t\u0103ng tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh gi\u1eefa c\u00e1c nghi\u1ec7m th\u1ee9c m\u1eadt \u0111\u1ed9 k\u1ebft h\u1ee3p v\u1edbi ch\u0103m s\u00f3c. M\u1eadt \u0111\u1ed9 tr\u1ed3ng 7.500 c\u00e2y\/ha v\u00e0 10.000 c\u00e2y\/ha lu\u00f4n c\u00f3 \u0111\u01b0\u1eddng k\u00ednh l\u1edbn h\u01a1n so v\u1edbi 2 nghi\u1ec7m th\u1ee9c tr\u1ed3ng 15.000 c\u00e2y\/ha v\u00e0 20.000 c\u00e2y\/ha. N\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng (20.000 c\u00e2y\/ha) k\u1ebft h\u1ee3p ch\u0103m s\u00f3c r\u1eebng 2 l\u1ea7n\/n\u0103m \u0111\u1ea1t 21,3 m3<\/sup>\/ha\/n\u0103m trong 3 n\u0103m \u0111\u1ea7u. T\u1eeb k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y, tr\u1ed3ng r\u1eebng Tr\u00e0m l\u00e1 d\u00e0i tr\u00ean \u0111\u1ea5t ph\u00e8n v\u00f9ng \u0110\u1ed3ng b\u1eb1ng s\u00f4ng C\u1eedu Long v\u1edbi m\u1eadt \u0111\u1ed9 tr\u1ed3ng ~20.000 c\u00e2y\/ha k\u1ebft h\u1ee3p v\u1edbi ch\u0103m s\u00f3c 2 l\u1ea7n\/n\u0103m trong th\u1eddi gian 3 n\u0103m \u0111\u1ea7u s\u1ebd n\u00e2ng cao n\u0103ng su\u1ea5t r\u1eebng.<\/p>\n

T\u1eeb kh\u00f3a:<\/em><\/strong> Ch\u0103m s\u00f3c r\u1eebng, m\u1eadt \u0111\u1ed9 tr\u1ed3ng, n\u0103ng su\u1ea5t, Tr\u00e0m l\u00e1 d\u00e0i<\/td>\n<\/tr>\n

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<\/a><\/a>Effects of planting density and tending intensity to tree growth and productivity of the Melaleuca leucadendra <\/em>plantation on acid sulphate soil in Thanh Hoa – Long An<\/strong><\/p>\n

This study on planting density (20,000 trees\/ha, 15,000 trees\/ha, 10,000 trees\/ha, 7,500 trees\/ha) combined with tending intensity (no tending, tending one time\/year, tending twice times\/year) that conducted at Thanh Hoa district, Long An province to verify suitable planting density and tending intensity for incseasing survival rate, tree growth and productivity. The early results showed that forest tending in the first two years reduced mortality of the plantation. At three years, initial planting density 20,000 trees\/ha had the lowest survival rate (73%) while others had a significant greater (79%). Planting densities (\u2265 10,000 trees\/ha) significantly increased tree high that compared to planting density of 7,500 trees\/ha. Tree diameter of planting densities (15,000 trees\/ha and 20,000 trees\/ha) was significant higher than that of 10,000 trees\/ha and 7,500 trees\/ha density. Planting density 20,000 trees\/ha combined with weed tending twice times per year had the highest productivity 21.3 m3<\/sup>\/ha\/year in the first three years. The results suggest that planting density (20,000 trees\/ha) combined with tending intensity (twice times per year in the first three years) can incsease productivity of Melaleuca leucadendra <\/em>plantations on acid sulphate soil in the Mekong Delta.<\/p>\n

Keywords:<\/em><\/strong> Forest tending, planting density, productivity, Melaleuca leucadendra<\/em><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/a>\u0110\u00c1NH GI\u00c1 SINH TR\u01af\u1edeNG V\u00c0 N\u0102NG SU\u1ea4T C\u1ee6A M\u1ed8T S\u1ed0 D\u00d2NG KEO LAI, KEO L\u00c1 TR\u00c0M T\u1ea0I B\u00c0U B\u00c0NG, B\u00ccNH D\u01af\u01a0NG<\/p>\n

<\/a><\/a>Nguy\u1ec5n Ki\u00ean C\u01b0\u1eddng, \u0110\u1ed7 Th\u1ecb Ng\u1ecdc H\u00e0, V\u00ec V\u0103n Kh\u00e1nh, Ph\u00f9ng V\u0103n T\u1ec9nh<\/p>\n

Trung t\u00e2m Nghi\u00ean c\u1ee9u Th\u1ef1c nghi\u1ec7m L\u00e2m nghi\u1ec7p \u0110\u00f4ng Nam B\u1ed9 –
\nVi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Nam B\u1ed9<\/p>\n\n\n\n\n
T\u00d3M T\u1eaeT<\/p>\n

Keo l\u00e0 lo\u00e0i c\u00e2y m\u1ecdc nhanh, c\u00f3 nhi\u1ec1u \u01b0u th\u1ebf nh\u01b0 kh\u1ea3 n\u0103ng th\u00edch nghi cao, sinh tr\u01b0\u1edfng nhanh v\u00e0 c\u1ea3i t\u1ea1o \u0111\u1ea5t t\u1ed1t. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u ch\u1ec9 ra r\u1eb1ng sinh tr\u01b0\u1edfng n\u0103ng su\u1ea5t r\u1eebng tr\u1ed3ng c\u1ee7a m\u1ed9t s\u1ed1 d\u00f2ng keo lai (AH1, AH7, TB6, TB12, BV32) v\u00e0 Keo l\u00e1 tr\u00e0m (AA1, AA9, AA26) c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t r\u00f5 r\u1ec7t. V\u1edbi keo lai: \u1ede 2,5 tu\u1ed5i, d\u00f2ng AH1 sinh tr\u01b0\u1edfng t\u1ed1t nh\u1ea5t \u0111\u01b0\u1eddng k\u00ednh ngang ng\u1ef1c (D1,3<\/sub>) 9,5 cm, chi\u1ec1u cao v\u00fat ng\u1ecdn (Hvn<\/sub>) 10,4 m, \u0111\u1ea1t t\u0103ng tr\u01b0\u1edfng b\u00ecnh qu\u00e2n 22,6 m3<\/sup>\/ha\/n\u0103m, sinh tr\u01b0\u1edfng th\u1ea5p nh\u1ea5t l\u00e0 d\u00f2ng AH7 \u0111\u01b0\u1eddng k\u00ednh ngang ng\u1ef1c (D1,3<\/sub>) 8,1 cm, chi\u1ec1u cao v\u00fat ng\u1ecdn (Hvn<\/sub>) 8,4 m, t\u0103ng tr\u01b0\u1edfng b\u00ecnh qu\u00e2n 13,7 m3<\/sup>\/ha\/n\u0103m; \u1ede 4,5 tu\u1ed5i, d\u00f2ng AH1 sinh tr\u01b0\u1edfng t\u1ed1t nh\u1ea5t \u0111\u01b0\u1eddng k\u00ednh ngang ng\u1ef1c (D1,3<\/sub>) 13,0 cm, chi\u1ec1u cao v\u00fat ng\u1ecdn (Hvn<\/sub>) 17,1 m, \u0111\u1ea1t t\u0103ng tr\u01b0\u1edfng b\u00ecnh qu\u00e2n 31,8 m3<\/sup>\/ha\/n\u0103m, k\u1ebf \u0111\u1ebfn l\u00e0 c\u00e1c d\u00f2ng AH7, BV32, TB12, sinh tr\u01b0\u1edfng th\u1ea5p nh\u1ea5t l\u00e0 d\u00f2ng TB6 \u0111\u01b0\u1eddng k\u00ednh ngang ng\u1ef1c (D1,3<\/sub>) 11,8 cm, chi\u1ec1u cao v\u00fat ng\u1ecdn (Hvn<\/sub>) 16,4 m, t\u0103ng tr\u01b0\u1edfng b\u00ecnh qu\u00e2n 24,0 m3<\/sup>\/ha\/n\u0103m. V\u1edbi Keo l\u00e1 tr\u00e0m: \u1ede 2,5 tu\u1ed5i, d\u00f2ng AA9 sinh tr\u01b0\u1edfng t\u1ed1t nh\u1ea5t \u0111\u01b0\u1eddng k\u00ednh ngang ng\u1ef1c (D1,3<\/sub>) 6,7 cm, chi\u1ec1u cao v\u00fat ng\u1ecdn (Hvn<\/sub>) 7,2 m, \u0111\u1ea1t t\u0103ng tr\u01b0\u1edfng b\u00ecnh qu\u00e2n 19,7 m3<\/sup>\/ha\/n\u0103m, k\u1ebf \u0111\u1ebfn l\u00e0 d\u00f2ng AA1, sinh tr\u01b0\u1edfng th\u1ea5p nh\u1ea5t l\u00e0 d\u00f2ng AA26 \u0111\u01b0\u1eddng k\u00ednh ngang ng\u1ef1c (D1,3<\/sub>) 5,9 cm, chi\u1ec1u cao v\u00fat ng\u1ecdn (Hvn<\/sub>) 6,3 m, t\u0103ng tr\u01b0\u1edfng b\u00ecnh qu\u00e2n 13,4 m3<\/sup>\/ha\/n\u0103m. \u1ede 4,5 tu\u1ed5i d\u00f2ng AA9 sinh tr\u01b0\u1edfng t\u1ed1t nh\u1ea5t \u0111\u01b0\u1eddng k\u00ednh ngang ng\u1ef1c (D1,3<\/sub>) 12,5 cm, chi\u1ec1u cao v\u00fat ng\u1ecdn (Hvn<\/sub>) 17,4 m, \u0111\u1ea1t t\u0103ng tr\u01b0\u1edfng b\u00ecnh qu\u00e2n 24,8 m3<\/sup>\/ha\/n\u0103m, k\u1ebf \u0111\u1ebfn l\u00e0 d\u00f2ng AA1, sinh tr\u01b0\u1edfng th\u1ea5p nh\u1ea5t l\u00e0 d\u00f2ng AA26 \u0111\u01b0\u1eddng k\u00ednh ngang ng\u1ef1c (D1,3<\/sub>) 10,5 cm, chi\u1ec1u cao v\u00fat ng\u1ecdn (Hvn<\/sub>) 15,7 m, t\u0103ng tr\u01b0\u1edfng b\u00ecnh qu\u00e2n 17,8 m3<\/sup>\/ha\/n\u0103m.<\/p>\n

T\u1eeb kh\u00f3a:<\/em><\/strong> B\u00ecnh D\u01b0\u01a1ng, keo lai, Keo l\u00e1 tr\u00e0m, sinh tr\u01b0\u1edfng<\/td>\n<\/tr>\n

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<\/a><\/a>Assessment on growth and production effects of acacia hybrid and Acacia auriculiformis<\/em> clones planted at Bau Bang, Binh Duong province<\/strong><\/p>\n

Acacia is a fast growing species, it has many advantages of high adaptability, fast growth and good soil improvement. The growth and production of acacia hybrid (AH1, AH7, TB6, TB12, BV32) and Acacia auriculiformis<\/em> (AA1, AA9, AA26) clones were significant difference at 2.5 and 4.5 years old. After 2.5 years, acacia hybrid clones AH1 was the highest about the diameter at breast height, tree height and production with 9.5 cm, 10.4 m and 22.6 m3<\/sup>\/ha\/year, respectively. The lowest were 8.1 cm, 8.4 m and 13.7 m3<\/sup>\/ha\/years at AH7 clone. After 4.5 years, AH1 clones were 13 cm of diameter, 17.1 m of tree heigh and 31.8 m3<\/sup>\/ha\/years of production. AH7, BV32 and TB12 is significantly lower in growth and production as compared with AH1. The lowest were 11.8 cm, 16.4 m and 24 m3<\/sup>\/ha\/years at TB6 clone. For Acacia auriculiformis<\/em>, 2.5 years old AA9 clone was the highest about the diameter at breast height, tree height and production with 6.7 cm, 7.2 m and 19.7 m3<\/sup>\/ha\/year, respectively. In constract, the lowest were 5.9 cm, 6.3 m and 13.4 m3<\/sup>\/ha\/years at AA26 clone. After 4.5 years, the growth and production had significant differences as follows: AA9, AA1 and AA26. Specifically, AA9 is diameter of 12.5 cm, tree heigh of 17.4 m and production of 24.8 m3<\/sup>\/ha\/years. The lowest is 10.5 cm, 15.7 m and 17.8 m3<\/sup>\/ha\/years at AA26.<\/p>\n

Keywords:<\/em><\/strong> Binh Duong province, acacia hybrid, Acacia auriculiformis<\/em>, tree growth<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/a>\u0110\u00c1NH GI\u00c1 SINH TR\u01af\u1edeNG V\u00c0 N\u0102NG SU\u1ea4T R\u1eeaNG TR\u1ed2NG KEO LAI, KEO L\u00c1 TR\u00c0M V\u00c0 B\u1ea0CH \u0110\u00c0N T\u1ea0I PH\u00da GI\u00c1O – B\u00ccNH D\u01af\u01a0NG<\/p>\n

<\/a><\/a>Nguy\u1ec5n V\u0103n \u0110\u0103ng, V\u0169 \u0110\u00ecnh H\u01b0\u1edfng, Nguy\u1ec5n Xu\u00e2n H\u1ea3i, Ki\u1ec1u M\u1ea1nh H\u00e0<\/p>\n

Trung t\u00e2m \u1ee8ng d\u1ee5ng Khoa h\u1ecdc K\u1ef9 thu\u1eadt L\u00e2m nghi\u1ec7p Nam B\u1ed9<\/p>\n\n\n\n\n
T\u00d3M T\u1eaeT<\/p>\n

Nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n nh\u1eb1m \u0111\u00e1nh gi\u00e1 sinh tr\u01b0\u1edfng b\u1ea1ch \u0111\u00e0n, Keo l\u00e1 tr\u00e0m v\u00e0 keo lai \u0111\u01b0\u1ee3c tr\u1ed3ng b\u1eb1ng c\u00e1c ngu\u1ed3n v\u1eadt li\u1ec7u gi\u1ed1ng kh\u00e1c nhau (c\u00e2y m\u00f4 v\u00e0 c\u00e2y hom) t\u1ea1i B\u00ecnh D\u01b0\u01a1ng. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u t\u1ea1i giai \u0111o\u1ea1n tu\u1ed5i 4 cho th\u1ea5y t\u1ef7 l\u1ec7 s\u1ed1ng c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c lo\u00e0i v\u00e0 ngu\u1ed3n v\u1eadt li\u1ec7u gi\u1ed1ng keo lai m\u00f4 – hom, trong \u0111\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a keo lai m\u00f4 (81,2%), keo lai hom (65,3%), Keo l\u00e1 tr\u00e0m (77,4%) v\u00e0 b\u1ea1ch \u0111\u00e0n lai (59,4%). \u0110\u00e1nh gi\u00e1 v\u1ec1 n\u0103ng su\u1ea5t t\u1ea1i tu\u1ed5i 4 cho th\u1ea5y keo lai m\u00f4 n\u0103ng su\u1ea5t (34,9 m3<\/sup>\/(ha\/n\u0103m)) v\u00e0 keo lai hom (32,0 m3<\/sup>\/(ha\/n\u0103m)) kh\u00e1c bi\u1ec7t so v\u1edbi Keo l\u00e1 tr\u00e0m (20,8 m3<\/sup>\/(ha\/n\u0103m)) v\u00e0 b\u1ea1ch \u0111\u00e0n (20,2 m3<\/sup>\/(ha\/n\u0103m)). N\u0103ng su\u1ea5t c\u1ee7a keo lai m\u00f4 v\u00e0 hom kh\u00f4ng c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 m\u1eb7t th\u1ed1ng k\u00ea. Hi\u1ec7n t\u1ea1i, l\u1ef1a ch\u1ecdn gi\u1ed1ng keo lai b\u1eb1ng m\u00f4 ho\u1eb7c hom \u0111\u1ec3 tr\u1ed3ng r\u1eebng \u0111\u1ec1u cho n\u0103ng su\u1ea5t cao. Nh\u1eb1m h\u1ea1n ch\u1ebf d\u1ecbch b\u1ec7nh xu\u1ea5t hi\u1ec7n \u1edf r\u1eebng keo lai, trong t\u1edbi gian t\u1edbi Keo l\u00e1 tr\u00e0m v\u00e0 b\u1ea1ch \u0111\u00e0n lai c\u1ea7n \u0111\u01b0\u1ee3c tr\u1ed3ng m\u1edf r\u1ed9ng \u1edf v\u00f9ng \u0110\u00f4ng Nam B\u1ed9.<\/p>\n

T\u1eeb kh\u00f3a:<\/em><\/strong> B\u1ea1ch \u0111\u00e0n, Keo l\u00e1 tr\u00e0m, keo lai, nu\u00f4i c\u1ea5y m\u00f4 v\u00e0 gi\u00e2m hom, n\u0103ng su\u1ea5t, sinh tr\u01b0\u1edfng<\/td>\n<\/tr>\n

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<\/a>Evaluate the growth and productivity of plantation forest Acacia hybrid, Acacia auriculiformis <\/em>and Eucalytus at Phu Giao – Binh Duong<\/strong><\/p>\n

The research was conducted to evaluate the growth of of Eucalytus hybrid, A<\/em>cacia auriculifomis<\/em> and acacia hybrid planted the sources of materials various varieties (tissue culture and cutting) at Binh Duong. The results showed that four years after planting, there were significant difference between varieties and materials of Acacia hybrid (tissue culture – cutting), in which survival rate of Acacia hybrid tissue culture (81,2%), Acacia hybrid cutting (65,3%), A. <\/em>a<\/em>uriculiformis<\/em> (77,4%) and Eucalytus hybrid (<\/em>59,4%)<\/em>.<\/em> Assesssment about productivity at 4 years of the Acacia hybrid tissue culture (34,9 m3<\/sup>\/(ha.y)), Acacia hybrid cutting (32,0 m3<\/sup>\/(ha.y)) different from A.auriculiformis <\/em>(20,8 m3<\/sup>\/(ha.y)) and Eucalytus hybrid (20,2 m3<\/sup>\/(ha.y)) of Acacia hybrid planted from tissue culture was not significant to its from cutting. At present, selection Acacia hybrid from both tissue culture and cutting for commercial plantations can get high productivity. To reduce diseases pandemic in acacia hybrid plantations, A. auriculiformis <\/em>and Eucalytus hybrid need be planted widely in South Eastern region.<\/p>\n

Keywords:<\/em><\/strong> Eucalytus, <\/em>Acacia auriculiformis, <\/em>Acacia hybrid, tissue culture and cutting, productivity, growths<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/a>B\u01af\u1edaC \u0110\u1ea6U NGHI\u00caN C\u1ee8U V\u1ec0 K\u1ef8 THU\u1eacT TR\u1ed2NG TH\u00c2M CANH TRE NG\u1eccT (Dendrocalamus brandisii <\/em>(Munro) Kurz) \u0110\u1ec2 L\u1ea4Y M\u0102NG T\u1ea0I C\u1ea6U HAI, PH\u00da TH\u1ecc<\/p>\n

<\/a><\/a>Nguy\u1ec5n V\u0103n Th\u1ecd, Nguy\u1ec5n Vi\u1ec5n, Ma Thanh Thuy\u1ebft<\/p>\n

Trung t\u00e2m Khoa h\u1ecdc L\u00e2m nghi\u1ec7p v\u00f9ng Trung t\u00e2m B\u1eafc B\u1ed9<\/p>\n\n\n\n\n
T\u00d3M T\u1eaeT<\/p>\n

Nghi\u00ean c\u1ee9u x\u00e1c \u0111\u1ecbnh k\u1ef9 thu\u1eadt tr\u1ed3ng th\u00e2m canh nh\u1eb1m t\u0103ng n\u0103ng su\u1ea5t, hi\u1ec7u qu\u1ea3 kinh t\u1ebf \u0111\u1ed1i v\u1edbi c\u00e1c lo\u00e0i Tre l\u1ea5y m\u0103ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi lo\u00e0i Tre ng\u1ecdt b\u1ea3n \u0111\u1ecba l\u00e0 th\u1ef1c s\u1ef1 c\u1ea7n thi\u1ebft. Nghi\u00ean c\u1ee9u \u0111\u00e3 th\u1ef1c hi\u1ec7n c\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m l\u01b0\u1ee3ng ph\u00e2n b\u00f3n, l\u01b0\u1ee3ng n\u01b0\u1edbc t\u01b0\u1edbi, s\u1ed1 c\u00e2y \u0111\u1ec3 l\u1ea1i, th\u1eddi \u0111i\u1ec3m \u0111\u1ec3 c\u00e2y m\u1eb9. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y: L\u01b0\u1ee3ng ph\u00e2n b\u00f3n v\u00e0 n\u01b0\u1edbc t\u01b0\u1edbi \u0111\u00e3 \u1ea3nh h\u01b0\u1edfng r\u00f5 r\u1ec7t \u0111\u1ebfn sinh tr\u01b0\u1edfng v\u00e0 n\u0103ng su\u1ea5t m\u0103ng Tre ng\u1ecdt, c\u00f4ng th\u1ee9c N4P4 (b\u00f3n 15 kg ph\u00e2n vi sinh + 2,0 kg ph\u00e2n NPK (16:16:8) v\u00e0 t\u01b0\u1edbi 15 l\u00edt n\u01b0\u1edbc\/l\u1ea7n\/b\u1ee5i, 3 ng\u00e0y t\u01b0\u1edbi 1 l\u1ea7n) t\u1ed1t nh\u1ea5t; Th\u1eddi \u0111i\u1ec3m \u0111\u1ec3 l\u1ea1i m\u0103ng l\u00e0m c\u00e2y m\u1eb9 v\u00e0o th\u00e1ng 6 – 7 v\u00e0 \u0111\u1ec3 l\u1ea1i 5 c\u00e2y m\u1eb9 1 tu\u1ed5i v\u00e0 5 c\u00e2y m\u1eb9 2 tu\u1ed5i tr\u00ean b\u1ee5i cho s\u1ed1 m\u0103ng v\u00e0 n\u0103ng su\u1ea5t m\u0103ng cao nh\u1ea5t.<\/p>\n

T\u1eeb kh\u00f3a:<\/em><\/strong> Tre ng\u1ecdt, m\u0103ng tre, k\u1ef9 thu\u1eadt tr\u1ed3ng th\u00e2m canh, Ph\u00fa Th\u1ecd<\/td>\n<\/tr>\n

\n

<\/a><\/a>Preliminary Research on intensive planting techniques of Dendrocalamus brandisii <\/em>(Munro) Kurz to obtain bamboo shoots in Cau Hai, Phu Tho province<\/strong><\/p>\n

Research and identification of intensive planting techniques are capable of increasing productivity, economic efficiency for bamboo species supporting bamboo shoot, especially Dendrocalamus brandisii, <\/em>an indigenous bamboo species, is really necessary. The study has implemented experimental formulas of fertilizer amount, amount of water for irrigation, number of mother culm retained, time of retaining bamboo shoot to become mother culm next year. The experiment results showed that. The amount of fertilizer and irrigation water had a significant effect on the quantity, diameter and bamboo shoot yield of D. brandisii<\/em> and the formula N4P4 is best. It is best to retain bamboo shoot to become mother trees in June – July and bequeath 5 mother trees 1 year old and 5 mother trees 2 years old per clump produce the best number and yield of bamboo shoots.<\/p>\n

Keywords:<\/em><\/strong> Dendrocalamus brandisii<\/em>, bamboo shoot, intensive planting techniques, Phu Tho<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/a>\u0110\u00c1NH GI\u00c1 T\u00cdNH CH\u1ed0NG CH\u1ecaU B\u1ec6NH CH\u1ebeT H\u00c9O C\u1ee6A C\u00c1C GI\u1ed0NG KEO LAI, KEO L\u00c1 TR\u00c0M V\u00c0 KEO TAI T\u01af\u1ee2NG B\u1eb0NG NHI\u1ec4M B\u1ec6NH NH\u00c2N T\u1ea0O \u1ede V\u01af\u1edcN \u01af\u01a0M<\/p>\n

<\/a><\/a>Tr\u1ea7n Thanh Tr\u0103ng1<\/sup>, Tr\u1ea7n Anh Tu\u1ea5n1<\/sup>, H\u00e0 Huy Nh\u1eadt2<\/sup>, Ng\u00f4 V\u0103n Ch\u00ednh2<\/sup>, L\u00ea S\u01a1n2<\/sup>,
\nNguy\u1ec5n \u0110\u1ee9c Ki\u00ean2<\/sup>, \u0110\u1ed7 H\u1eefu S\u01a1n2<\/sup>, Nguy\u1ec5n V\u0103n Nam1<\/sup>, B\u00f9i Quang Ti\u1ebfp1<\/sup>, Ph\u1ea1m Th\u1ecb Th\u1ee7y1<\/sup>, Nguy\u1ec5n Ho\u00e0i Thu1<\/sup>, Nguy\u1ec5n Th\u1ecb Minh H\u1eb1ng1<\/sup><\/p>\n

1<\/sup>Trung t\u00e2m Nghi\u00ean c\u1ee9u B\u1ea3o v\u1ec7 r\u1eebng;
\n2<\/sup>Vi\u1ec7n Nghi\u00ean c\u1ee9u Gi\u1ed1ng v\u00e0 C\u00f4ng ngh\u1ec7 sinh h\u1ecdc L\u00e2m nghi\u1ec7p<\/p>\n\n\n\n\n
T\u00d3M T\u1eaeT<\/p>\n

C\u00e1c lo\u00e0i Keo l\u00e1 tr\u00e0m (Acacia auriculiformis<\/em>), Keo tai t\u01b0\u1ee3ng (A.<\/em>\u00a0mangium<\/em>) v\u00e0 keo lai l\u00e0 nh\u1eefng lo\u00e0i c\u00e2y tr\u1ed3ng r\u1eebng ch\u00ednh \u1edf Vi\u1ec7t Nam, v\u1edbi di\u1ec7n t\u00edch tr\u00ean 1,5 tri\u1ec7u ha. Hi\u1ec7n nay nhi\u1ec1u di\u1ec7n t\u00edch r\u1eebng tr\u1ed3ng keo, \u0111\u1eb7c bi\u1ec7t l\u00e0 keo lai v\u00e0 Keo tai t\u01b0\u1ee3ng \u1edf Vi\u1ec7t Nam \u0111ang b\u1ecb n\u1ea5m Ceratocystis manginecans<\/em> t\u1ea5n c\u00f4ng, g\u00e2y ch\u1ebft h\u00e9o \u1edf nhi\u1ec1u t\u1ec9nh tr\u00ean c\u1ea3 n\u01b0\u1edbc. Vi\u1ec7c tuy\u1ec3n ch\u1ecdn v\u00e0 tr\u1ed3ng c\u00e1c d\u00f2ng keo v\u1eeba c\u00f3 t\u00ednh tr\u1ea1ng sinh tr\u01b0\u1edfng nhanh v\u00e0 v\u1eeba c\u00f3 t\u00ednh tr\u1ea1ng kh\u00e1ng b\u1ec7nh ho\u1eb7c ch\u1ed1ng ch\u1ecbu b\u1ec7nh ch\u1ebft h\u00e9o l\u00e0 vi\u1ec7c l\u00e0m c\u1ea7n thi\u1ebft. M\u1ed9t th\u00ed nghi\u1ec7m nhi\u1ec5m b\u1ec7nh nh\u00e2n t\u1ea1o nhi\u1ec5m n\u1ea5m g\u00e2y b\u1ec7nh ch\u1ebft h\u00e9o C. manginecans<\/em> l\u00ean c\u00e2y con c\u1ee7a ba d\u00f2ng Keo l\u00e1 tr\u00e0m, b\u1ed1n d\u00f2ng keo lai gi\u1ed1ng Ti\u1ebfn b\u1ed9 k\u1ef9 thu\u1eadt, s\u00e1u d\u00f2ng keo lai gi\u1ed1ng Qu\u1ed1c gia, s\u00e1u gia \u0111\u00ecnh Keo tai t\u01b0\u1ee3ng, h\u1ea1t thu t\u1eeb v\u01b0\u1eddn gi\u1ed1ng h\u1eefu t\u00ednh th\u1ebf h\u1ec7 2 v\u00e0 44 d\u00f2ng keo lai m\u1edbi \u0111\u01b0\u1ee3c ch\u1ecdn t\u1ea1o \u1edf v\u01b0\u1eddn \u01b0\u01a1m c\u1ee7a Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam nh\u1eb1m ch\u1ecdn ra c\u00e1c gi\u1ed1ng keo c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng\/ch\u1ed1ng ch\u1ecbu v\u1edbi n\u1ea5m g\u00e2y b\u1ec7nh ch\u1ebft h\u00e9o. Sau 45 ng\u00e0y nhi\u1ec5m b\u1ec7nh, k\u1ebft qu\u1ea3 cho th\u1ea5y hai d\u00f2ng Keo l\u00e1 tr\u00e0m Clt18 v\u00e0 Clt19 c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng b\u1ec7nh ch\u1ebft h\u00e9o \u1edf c\u1ea5p b\u1ec7nh C0 cao h\u01a1n (p<\/em><0,001) so v\u1edbi c\u00e1c gia \u0111\u00ecnh Keo tai t\u01b0\u1ee3ng \u1edf c\u1ea5p b\u1ec7nh C3. Trong khi \u0111\u00f3, chi\u1ec1u d\u00e0i v\u1ebft b\u1ec7nh c\u1ee7a c\u00e1c d\u00f2ng keo lai n\u1eb1m trong kho\u1ea3ng chi\u1ec1u d\u00e0i v\u1ebft b\u1ec7nh c\u1ee7a c\u00e1c d\u00f2ng Keo l\u00e1 tr\u00e0m v\u00e0 c\u00e1c gia \u0111\u00ecnh Keo tai t\u01b0\u1ee3ng. Trong s\u1ed1 c\u00e1c d\u00f2ng keo lai, d\u00f2ng BV10 v\u00e0 b\u1ed1n d\u00f2ng m\u1edbi ch\u1ecdn t\u1ea1o (102, BV316, BV567 v\u00e0 92\/1) c\u00f3 chi\u1ec1u d\u00e0i v\u1ebft b\u1ec7nh t\u01b0\u01a1ng \u0111\u01b0\u01a1ng (p<\/em><0,001) v\u1edbi chi\u1ec1u d\u00e0i v\u1ebft b\u1ec7nh c\u1ee7a c\u00e1c d\u00f2ng Keo l\u00e1 tr\u00e0m \u1edf c\u1ea5p b\u1ec7nh C0. T\u1ef7 l\u1ec7 c\u00e2y ch\u1ebft c\u1ee7a c\u00e1c d\u00f2ng\/gia \u0111\u00ecnh keo c\u00f3 t\u01b0\u01a1ng quan v\u1edbi chi\u1ec1u d\u00e0i v\u1ebft b\u1ec7nh tr\u00ean th\u00e2n c\u00e2y (R2<\/sup> = 0,77 – 0,82). C\u00e1c d\u00f2ng keo lai c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng b\u1ec7nh ch\u1ebft h\u00e9o \u1edf c\u1ea5p b\u1ec7nh C0 l\u00e0 nh\u1eefng gi\u1ed1ng keo ti\u1ec1m n\u0103ng cho ph\u00e1t tri\u1ec3n tr\u1ed3ng r\u1eebng keo trong t\u01b0\u01a1ng lai.<\/p>\n

T\u1eeb kh\u00f3a:<\/em><\/strong> Ceratocystis<\/em>, keo lai, Keo l\u00e1 tr\u00e0m, Keo tai t\u01b0\u1ee3ng, nhi\u1ec5m b\u1ec7nh nh\u00e2n t\u1ea1o<\/td>\n<\/tr>\n

\n

<\/a><\/a>Assessment of tolerance to a canker and wilt pathogen of Acacia hybrid, Acacia auriculifomis<\/em> clones and families of A. mangium<\/em> by artificial inoculation in nursery<\/strong><\/p>\n

Acacia species including Acacia auriculiformis<\/em>, A. magium<\/em> and Acacia hybrid (A. mangium<\/em> \u00b4 A. auriculifomis<\/em>) are among the main forest plant species in Vietnam, with an area of \u200b\u200bover 1,500,000 hectares. Currently, many acacia plantations, especially Acacia hybrid and A. mangium<\/em> plantations in Vietnam are being attacked by a canker and wilt pathogen Ceratocystis manginecans<\/em>, causing tree death in many provinces across the country. It is essential to select and plant Acacia clones that have both rapid growth and resistance or tolerance to disease. An experiment of artificial inoculation of C.\u00a0manginecans <\/em>on cutings of three Acacia<\/em> auriculifomis<\/em> clones, four Acacia hybrid regconised as Technologically advanced cultivars, six Acacia hybrid clones regconised as National cultivars, seedlings of six families of Acacia mangium<\/em>, seeds collected from the 2nd generation seed garden and 44 newly selected Acacia hybrid clones, the experiment was conducted in the nursery of the Vietnames Academy of Forest Sciences in order to select Acacia hybrid clones which are resistant\/tolerant to a canker and wilt pathogen. After 45 days of inoculation, the results showed that two A. auriculiformis<\/em> clones Clt18 and Clt19 resistant at C0 level were relatively more resistant to C.\u00a0manginecans<\/em> (p<\/em> <0.001) than the A. mangium<\/em> families which are at C3 level. Meanwhile, the lesion length of the Acacia hybrid clones is in the range of the lesion length of A. auriculiformis<\/em> clones and of the lesion length of the
\nA. mangium<\/em> families. Among the hybrid clones, the lesion length of the BV10 and four newly selected clones (102, BV316, BV567 and 92\/1) had the same (p<\/em> <0.001) lesion length of the A. auriculiformis<\/em> clones resistant at C0 level. The percentage of death trees of Acacia clones\/families was correlated with the lesion length of the pathogen on the stem (R2<\/sup> = 0.77 – 0.82). Acacia hybrid clones resistant to a canker and wilt pathogen at C0 level are potential varieties for future development of acacia plantations.<\/p>\n

Keywords:<\/em><\/strong> Ceratocystis<\/em>, Acacia hybrid, A. auriculiformis, A. maingium<\/em>, artificial inoculation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/a>T\u00ccNH H\u00ccNH G\u00c2Y H\u1ea0I V\u00c0 M\u1ed8T S\u1ed0 \u0110\u1eb6C \u0110I\u1ec2M SINH H\u1eccC C\u1ee6A V\u00d2I VOI (Alcidodes <\/em>sp.) \u0110\u1ee4C NG\u1eccN QU\u1ebe (Cinnamomum cassia<\/em> L.J.Presl) V\u00c0 H\u1ed2I (Illicium verum<\/em>\u00a0Hook.f) T\u1ea0I VI\u1ec6T NAM<\/p>\n

<\/a><\/a>L\u00ea V\u0103n B\u00ecnh, Nguy\u1ec5n V\u0103n Th\u00e0nh, Nguy\u1ec5n Ho\u00e0i Thu<\/p>\n

Trung t\u00e2m Nghi\u00ean c\u1ee9u B\u1ea3o v\u1ec7 r\u1eebng, Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/p>\n\n\n\n\n
T\u00d3M T\u1eaeT<\/p>\n

Qu\u1ebf v\u00e0 H\u1ed3i l\u00e0 lo\u00e0i c\u00e2y \u0111\u1eb7c s\u1ea3n c\u1ee7a Vi\u1ec7t Nam, trong \u0111\u00f3 c\u00e2y Qu\u1ebf c\u00f3 ph\u00e2n b\u1ed1 ch\u1ee7 y\u1ebfu \u1edf c\u00e1c t\u1ec9nh nh\u01b0 Y\u00ean B\u00e1i, L\u00e0o Cai, Lai Ch\u00e2u, B\u1eafc K\u1ea1n, L\u1ea1ng S\u01a1n, Qu\u1ea3ng Ninh, Thanh H\u00f3a, Ngh\u1ec7 An, Qu\u1ea3ng Nam v\u00e0 Qu\u1ea3ng Ng\u00e3i; H\u1ed3i ph\u00e2n b\u1ed1 \u1edf t\u1ec9nh L\u1ea1ng S\u01a1n, Qu\u1ea3ng Ninh, B\u1eafc K\u1ea1n v\u00e0 Cao B\u1eb1ng. Hi\u1ec7n nay, r\u1eebng tr\u1ed3ng Qu\u1ebf 3 n\u0103m tu\u1ed5i v\u00e0 r\u1eebng tr\u1ed3ng H\u1ed3i 5 n\u0103m tu\u1ed5i \u0111ang b\u1ecb lo\u00e0i V\u00f2i voi \u1edf giai \u0111o\u1ea1n tr\u01b0\u1edfng th\u00e0nh v\u00e0 s\u00e2u non g\u00e2y h\u1ea1i; lo\u00e0i V\u00f2i voi c\u00f3 t\u00ean khoa h\u1ecdc l\u00e0 (Alcidodes <\/em>sp.) thu\u1ed9c t\u1ed9c Mecysolobini, ph\u00e2n h\u1ecd Molytinae, h\u1ecd V\u00f2i voi Curculionidae, b\u1ed9 C\u00e1nh c\u1ee9ng Coleoptera; tr\u01b0\u1edfng th\u00e0nh \u0111\u1ef1c d\u00e0i trung b\u00ecnh 10,2 mm (\u00b1 0,2 mm), tr\u01b0\u1edfng th\u00e0nh c\u00e1i l\u1edbn h\u01a1n tr\u01b0\u1edfng th\u00e0nh \u0111\u1ef1c, d\u00e0i trung b\u00ecnh 12,5 (\u00b1 0,3 mm), to\u00e0n th\u00e2n m\u00e0u n\u00e2u ph\u1edbt x\u00e1m, c\u00e0nh tr\u01b0\u1edbc m\u1ed7i b\u00ean c\u00f3 1 d\u1ea3i m\u00e0u tr\u1eafng x\u00e1m; tr\u1ee9ng h\u00ecnh el\u00edp, d\u00e0i trung b\u00ecnh 1,8 mm (\u00b1 0,1 mm), m\u00e0u tr\u1eafng s\u1eefa; s\u00e2u non tu\u1ed5i 1: D\u00e0i trung b\u00ecnh 2,8 mm (\u00b1 0,2 mm), th\u00e2n m\u00e0u tr\u1eafng \u0111\u1ee5c v\u00e0 \u0111\u1ea7u m\u00e0u n\u00e2u nh\u1ea1t (h\u00ecnh 2c); s\u00e2u non tu\u1ed5i 2 d\u00e0i trung b\u00ecnh 6,4 mm
\n(\u00b1 0,1 mm), th\u00e2n m\u00e0u tr\u1eafng s\u1eefa nh\u1ea1t, \u0111\u1ea7u m\u00e0u n\u00e2u; s\u00e2u non tu\u1ed5i 3 d\u00e0i trung b\u00ecnh 10,7 mm (\u00b1 0,2 mm), th\u00e2n m\u00e0u v\u00e0ng nh\u1ea1t v\u00e0 \u0111\u1ea7u m\u00e0u n\u00e2u \u0111\u1eadm \u0111\u1ebfn c\u00e1nh gi\u00e1n; nh\u1ed9ng d\u00e0i trung b\u00ecnh 10,4 mm (\u00b1 0,1 mm), th\u00e2n m\u00e0u tr\u1eafng s\u1eefa.<\/p>\n

T\u1eeb kh\u00f3a:<\/em><\/strong> Alcidodes<\/em> sp., t\u1eadp t\u00ednh, Qu\u1ebf, H\u1ed3i v\u00e0 h\u00ecnh th\u00e1i<\/td>\n<\/tr>\n

\n

<\/a><\/a>Damage status and some biology characteristics of (Alcidodes <\/em>sp.) snout weevil (Cinnamomum cassia<\/em> L.J.Presl) and (Illicium verum<\/em>\u00a0Hook. F) in Vietnam<\/strong><\/p>\n

Cinnamon and Star anise species are Vietnam’s specialty plant. In this, Cinnamon is mainly distributed in Yen Bai, Lao Cai, Lai Chau, Bac Kan, Lang Son, Quang Ninh, Thanh Hoa, Nghe An, Quang Nam and Quang Ngai provinces and Star anise is mainly distributed in Lang Son, Quang Ninh, Bac Kan and Cao Bang provinces. Currently, <\/em>Cinnamon plantations are three years, and star anise plantations are five years have damaged adult and larvae by significantly by the snout weevil. The species has scientific name Alcidodes<\/em> sp. belong to Mecysolobini, subfamily Molytiniae (Coleoptera: Curculionidae). Adult male snout weevil was, on average 10.2 mm (\u00b1 0.2) long, the female was bigger the male, the average length of 12.5 mm (\u00b1 0.3), body the whole body is greyish – brown, the branches in front of each side have a strip of grey – white samples; elliptical eggs, 1.8 mm (\u00b1 0.1 mm) long on average, milky white; the larva 1: Average length of 2.8 mm (\u00b1 0.2 mm), white body and light brown head (Figure 2c); the larva of stage 2 on average 6.4 mm (\u00b1 0.1 mm), pale milky white body, brown head; Lavar of stage 3 are on average 10.7 mm (\u00b1 0.2 mm) long, light yellow body and head dark brown to puce; pupa average 10.4 mm (\u00b1 0.1 mm) long, the body is milky white.<\/p>\n

Keywords:<\/em><\/strong> Alcidodes<\/em> sp., behaviour, Illicium verum,<\/em> Cinnamomum cassia <\/em>and morphology<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/a>T\u00ccNH H\u00ccNH G\u00c2Y H\u1ea0I V\u00c0 M\u1ed8T S\u1ed0 \u0110\u1eb6C \u0110I\u1ec2M SINH H\u1eccC C\u1ee6A LO\u00c0I S\u00c2U CU\u1ed0N L\u00c1 \u0110\u1ea6U \u0110EN (Herpetogramma <\/em>sp.) H\u1ea0I C\u00c2Y TR\u00d4M (Sterculia foetida<\/em> L.) T\u1ea0I NAM TRUNG B\u1ed8<\/p>\n

<\/a><\/a>Nguy\u1ec5n V\u0103n Th\u00e0nh, L\u00ea V\u0103n B\u00ecnh, Nguy\u1ec5n Qu\u1ed1c Th\u1ed1ng v\u00e0 Nguy\u1ec5n Ho\u00e0i Thu<\/p>\n

Trung t\u00e2m Nghi\u00ean c\u1ee9u B\u1ea3o v\u1ec7 r\u1eebng, Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/p>\n\n\n\n\n
T\u00d3M T\u1eaeT<\/p>\n

Lo\u00e0i s\u00e2u cu\u1ed1n l\u00e1 \u0111\u1ea7u \u0111en \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh l\u00e0 lo\u00e0i Herpetogramma<\/em> sp. thu\u1ed9c ph\u00e2n h\u1ecd Spilomelinae, h\u1ecd B\u01b0\u1edbm c\u1ecf Crambidae, b\u1ed9 C\u00e1nh v\u1ea3y Lepidoptera. \u0110\u00e2y l\u00e0 lo\u00e0i s\u00e2u h\u1ea1i l\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c ghi nh\u1eadn g\u00e2y h\u1ea1i tr\u00ean c\u00e2y Tr\u00f4m t\u1ea1i Vi\u1ec7t Nam. T\u1ef7 l\u1ec7 b\u1ecb h\u1ea1i trung b\u00ecnh t\u1eeb 31,37 – 43,51%, m\u1ee9c \u0111\u1ed9 b\u1ecb h\u1ea1i trung b\u00ecnh t\u1eeb 0,9 – 1,44 (\u0111\u1ed1i v\u1edbi r\u1eebng d\u01b0\u1edbi 5 n\u0103m tu\u1ed5i); t\u1ef7 l\u1ec7 v\u00e0 m\u1ee9c \u0111\u1ed9 b\u1ecb h\u1ea1i trung b\u00ecnh t\u01b0\u01a1ng \u1ee9ng t\u1eeb 27,43 – 30,93% v\u00e0 0,74 – 0,9 (\u0111\u1ed1i v\u1edbi r\u1eebng tr\u00ean 5 n\u0103m tu\u1ed5i). Tr\u01b0\u1edfng th\u00e0nh c\u00f3 c\u01a1 th\u1ec3 c\u00f3 m\u00e0u v\u00e0ng nh\u1ea1t, m\u1eaft k\u00e9p m\u00e0u \u0111en nh\u1ea1t, r\u00e2u \u0111\u1ea7u h\u00ecnh s\u1ee3i ch\u1ec9 d\u00e0i t\u1eeb 1,22 – 1,38 mm. Ph\u00eda tr\u00ean ph\u1ea7n ng\u1ef1c, b\u1ee5ng v\u00e0 c\u00e1nh c\u00f3 m\u00e0u v\u00e0ng nh\u1ea1t, c\u00e1nh tr\u01b0\u1edbc v\u00e0 sau c\u00f3 c\u00e1c d\u1ea3i \u0111\u01b0\u1eddng m\u00e0u \u0111en nh\u1ea1t. Tr\u1ee9ng c\u00f3 h\u00ecnh b\u1ea7u d\u1ee5c, d\u00e0i 0,7 mm, r\u1ed9ng 0,5 mm. S\u00e2u non bao g\u1ed3m 6 tu\u1ed5i: s\u00e2u non tu\u1ed5i 1 th\u01b0\u1eddng g\u00e2y h\u1ea1i l\u00e1 non, c\u00e1c tu\u1ed5i s\u00e2u non 3, 4, 5 \u0103n m\u1ea1nh h\u01a1n, sang tu\u1ed5i 6 s\u00e2u \u00edt ho\u1ea1t \u0111\u1ed9ng h\u01a1n, giai \u0111o\u1ea1n ti\u1ec1n nh\u1ed9ng c\u00f3 m\u00e0u tr\u1eafng v\u00e0ng, \u0111\u1ea7u m\u00e0u n\u00e2u \u0111en. Nh\u1ed9ng c\u00f3 m\u00e0u v\u00e0ng n\u00e2u.<\/p>\n

T\u1eeb kh\u00f3a:<\/em><\/strong> C\u00e2y Tr\u00f4m, s\u00e2u cu\u1ed1n l\u00e1 \u0111\u1ea7u \u0111en, \u0111\u1eb7c \u0111i\u1ec3m sinh h\u1ecdc<\/td>\n<\/tr>\n

\n

<\/a><\/a>Damage status and some biological characteristics of Herpetogramma<\/em> sp. damaging Sterrculia foetida<\/em> in South central, Vietnam<\/strong><\/p>\n

This is the first record of black – headed leaf – forder Herpetogramma<\/em> sp. (Lepidoptera: Spilomelinae) damaging S. foetida<\/em> plantations in South cetral, Vietnam. The average damage incidence from 31.37% to 43.51%, the average damage index was from 0.9 – 1.44 in under 5 years old plantattions; The average damage incidence and damage index in over 5 years old plantations were lower, from 27.43% to 30.93% and 0.74 to 0.9, respectively. Adults are pale yellow in color, with pale black double eyes. The antennae are filiform in shape with 1.22 to 1.38 mm length. Above the chest, abdomen and wings are pale yellow, the front and rear wingspan havethree pale black lines. The eggs are oval and white when first laid. They measure approximately 0.7 mm in lenth and 0.5 mm in wide. The larvae included 6 age stages: The first instar larvae usually feed on young leaves, the 3, 4, 5 instar larvae eat stronger, the final instar larvae is less active, pre – pupa stage is white yellow, with brown – black head. Pupal are yellow brown in color.<\/p>\n

Keywords:<\/em><\/strong> Sterculia foetida<\/em>, black – headed leaf – forder, biological characteristics<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/a>B\u01af\u1edaC \u0110\u1ea6U X\u00c1C \u0110\u1ecaNH NGUY\u00caN NH\u00c2N G\u00c2Y B\u1ec6NH TH\u1ed0I M\u0102NG TRE B\u00c1T \u0110\u1ed8 T\u1ea0I T\u1ec8NH Y\u00caN B\u00c1I<\/p>\n

<\/a><\/a>Tr\u1ea7n Xu\u00e2n H\u01b0ng<\/p>\n

Trung t\u00e2m Nghi\u00ean c\u1ee9u B\u1ea3o v\u1ec7 r\u1eebng<\/p>\n\n\n\n\n
T\u00d3M T\u1eaeT<\/p>\n

Tre B\u00e1t \u0111\u1ed9 (Dendrocalamus latiflorus<\/em>) l\u00e0 lo\u00e0i c\u00e2y c\u00f3 gi\u00e1 tr\u1ecb kinh t\u1ebf cao t\u1eeb khai th\u00e1c m\u0103ng, l\u00e1 hi\u1ec7n \u0111ang \u0111\u01b0\u1ee3c g\u00e2y tr\u1ed3ng v\u00e0 ph\u00e1t tri\u1ec3n t\u1ea1i nhi\u1ec1u \u0111\u1ecba ph\u01b0\u01a1ng. T\u1ea1i Y\u00ean B\u00e1i, tre B\u00e1t \u0111\u1ed9 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh l\u00e0 m\u1ed9t trong c\u00e1c lo\u1ea1i c\u00e2y tr\u1ed3ng ch\u1ee7 l\u1ef1c, c\u1ea7n t\u1eadp trung \u0111\u1ea7u t\u01b0 ph\u00e1t tri\u1ec3n, n\u00e2ng cao gi\u00e1 tr\u1ecb v\u00e0 ph\u00e1t huy l\u1ee3i th\u1ebf c\u1ee7a \u0111\u1ecba ph\u01b0\u01a1ng. Tuy nhi\u00ean, trong th\u1eddi gian g\u1ea7n \u0111\u00e2y b\u1ec7nh th\u1ed1i m\u0103ng \u0111\u00e3 xu\u1ea5t hi\u1ec7n tr\u00ean c\u00e1c di\u1ec7n t\u00edch tr\u1ed3ng m\u0103ng t\u1eadp trung v\u00e0 g\u00e2y \u1ea3nh h\u01b0\u1edfng kh\u00f4ng nh\u1ecf \u0111\u1ebfn n\u0103ng su\u1ea5t v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng m\u0103ng khai th\u00e1c. Nghi\u00ean c\u1ee9u n\u00e0y ghi nh\u1eadn lo\u00e0i n\u1ea5m Fusarium solani<\/em> l\u00e0 nguy\u00ean nh\u00e2n g\u00e2y ra b\u1ec7nh th\u1ed1i m\u0103ng tr\u00ean c\u00e2y m\u0103ng tre B\u00e1t \u0111\u1ed9. B\u1ec7nh xu\u1ea5t hi\u1ec7n ch\u1ee7 y\u1ebfu trong giai \u0111o\u1ea1n khai th\u00e1c m\u0103ng, k\u1ebft h\u1ee3p v\u1edbi \u0111\u1ed9 \u1ea9m cao t\u1eeb th\u00e1ng 7 \u0111\u1ebfn th\u00e1ng 10. \u0110\u00e2y l\u00e0 lo\u00e0i n\u1ea5m kh\u00e1 ph\u1ed5 bi\u1ebfn g\u00e2y h\u1ea1i tr\u00ean r\u1ea5t nhi\u1ec1u lo\u00e0i c\u00e2y tr\u1ed3ng kh\u00e1c nhau t\u1ea1i Vi\u1ec7t Nam. Do \u0111\u00f3 c\u1ea7n ti\u1ebfp t\u1ee5c nghi\u00ean c\u1ee9u x\u00e1c \u0111\u1ecbnh c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng tr\u1eeb lo\u00e0i n\u1ea5m b\u1ec7nh n\u00e0y \u0111\u1ec3 c\u00f3 gi\u1ea3i ph\u00e1p qu\u1ea3n l\u00fd hi\u1ec7u qu\u1ea3 r\u1eebng tr\u1ed3ng m\u0103ng.<\/p>\n

T\u1eeb kh\u00f3a:<\/em><\/strong> B\u1ec7nh th\u1ed1i m\u0103ng, Fusarium solani<\/em>, m\u0103ng tre B\u00e1t \u0111\u1ed9, Dendrocalamus latiflorus<\/em><\/td>\n<\/tr>\n

\n

<\/a><\/a>An initial determination of the cause of emerging shoot rot disease associated with sweet bamboo (Dendrocalamus latiflorus)<\/em> in Yen Bai province<\/strong><\/p>\n

Sweet bamboo (Dendrocalamus latiflorus<\/em>) is a high economic value from the harvest of emerging bamboo shoots and leaf products, and being grown in many localities. Sweet bamboo is determined as one of key plantations in Yen Bai province, which is necessary to focus on investment and enhancing the quality of bamboo shoots, and promote the local advantages. However, in recent times, the rot disease of emerging shoots has occurred on the bamboo plantation and has a significant impact on the yield and quality of bamboo shoots. This study recorded the fungal species Fusarium solani<\/em> causing the rot disease of emerging shoots on sweet bamboo. This disease appears mainly during the harvest of emerging shoots, combined with high humidity from July to October annually. This fungal species is relatively widespread and to damage various plant species in Vietnam. Therefore, it is necessary to continue to study and determine the control measure for this disease and manage effectively the sweet bamboo plantation.<\/p>\n

Keywords:<\/em><\/strong> Emerging shoot rot, Fusarium solani<\/em>, sweet bamboo, Dendrocalamus latiflorus<\/em><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a><\/a>\u1ea2NH H\u01af\u1edeNG C\u1ee6A H\u1ed6N H\u1ee2P KEO NH\u1ef0A TH\u00d4NG V\u00c0 AX\u00cdT BORIC \u0110\u1ebeN M\u1ed8T S\u1ed0 T\u00cdNH CH\u1ea4T C\u01a0 H\u1eccC C\u1ee6A G\u1ed6 B\u1ed2 \u0110\u1ec0<\/p>\n

<\/a><\/a>Nguy\u1ec5n Th\u1ecb Thanh Hi\u1ec1n, Nguy\u1ec5n Th\u1ecb Minh Nguy\u1ec7t, Tr\u1ea7n V\u0103n Ch\u1ee9, Tr\u1ea7n Nho C\u01b0\u01a1ng<\/p>\n

Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc L\u00e2m nghi\u1ec7p<\/p>\n\n\n\n\n
T\u00d3M T\u1eaeT<\/p>\n

M\u1ee5c \u0111\u00edch c\u1ee7a nghi\u00ean c\u1ee9u n\u00e0y l\u00e0 \u0111\u00e1nh gi\u00e1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a keo nh\u1ef1a th\u00f4ng \u0111\u1ebfn t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a g\u1ed7 B\u1ed3 \u0111\u1ec1 sau khi \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1edfi 1%, 2%, v\u00e0 4% dung d\u1ecbch keo nh\u1ef1a th\u00f4ng v\u00e0 h\u1ed7n h\u1ee3p c\u1ee7a n\u00f3 v\u1edbi 3% axit boric. K\u1ebft qu\u1ea3 cho th\u1ea5y: S\u1eed d\u1ee5ng keo nh\u1ef1a th\u00f4ng \u0111\u01a1n l\u1ebb ho\u1eb7c k\u1ebft h\u1ee3p v\u1edbi axit boric \u0111\u1ec3 x\u1eed l\u00fd g\u1ed7 B\u1ed3 \u0111\u1ec1 c\u00f3 \u1ea3nh h\u01b0\u1edfng nh\u1ea5t \u0111\u1ecbnh \u0111\u1ebfn t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a g\u1ed7. G\u1ed7 B\u1ed3 \u0111\u1ec1 sau khi \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1edfi dung d\u1ecbch keo nh\u1ef1a th\u00f4ng \u0111\u01a1n l\u1ebb hay k\u1ebft h\u1ee3p v\u1edbi ax\u00edt boric \u0111\u00e3 l\u00e0m t\u0103ng \u0111\u1ed9 b\u1ec1n n\u00e9n d\u1ecdc c\u1ee7a g\u1ed7. So v\u1edbi g\u1ed7 ch\u01b0a x\u1eed l\u00fd, m\u1eabu g\u1ed7 \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1edfi h\u1ed7n h\u1ee3p keo nh\u1ef1a th\u00f4ng v\u00e0 axit boric \u0111\u00e3 l\u00e0m t\u0103ng \u0111\u1ed9 b\u1ec1n n\u00e9n d\u1ecdc c\u1ee7a g\u1ed7 l\u00ean kho\u1ea3ng 30%. Khi n\u1ed3ng \u0111\u1ed9 c\u1ee7a dung d\u1ecbch keo nh\u1ef1a th\u00f4ng t\u0103ng t\u1eeb 1 – 4% th\u00ec c\u01b0\u1eddng \u0111\u1ed9 n\u00e9n d\u1ecdc th\u1edb c\u1ee7a g\u1ed7 c\u00f3 xu h\u01b0\u1edbng t\u0103ng l\u00ean, nh\u01b0ng s\u1ef1 t\u0103ng n\u00e0y l\u00e0 kh\u00f4ng \u0111\u00e1ng k\u1ec3. Tuy nhi\u00ean, g\u1ed7 B\u1ed3 \u0111\u1ec1 sau khi \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1edfi h\u1ed7n h\u1ee3p dung d\u1ecbch keo nh\u1ef1a th\u00f4ng v\u00e0 ax\u00edt boric \u0111\u00e3 l\u00e0m gi\u1ea3m nh\u1eb9 c\u01b0\u1eddng \u0111\u1ed9 u\u1ed1n t\u0129nh v\u00e0 m\u00f4\u0111un \u0111\u00e0n h\u1ed3i c\u1ee7a g\u1ed7. Ngo\u00e0i ra, n\u1ed3ng \u0111\u1ed9 c\u1ee7a keo nh\u1ef1a th\u00f4ng t\u0103ng l\u00ean kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n u\u1ed1n t\u0129nh v\u00e0 m\u00f4\u0111un \u0111\u00e0n h\u1ed3i c\u1ee7a g\u1ed7.<\/p>\n

T\u1eeb kh\u00f3a:<\/em><\/strong> Ax\u00edt boric, g\u1ed7 B\u1ed3 \u0111\u1ec1, \u0111\u1ed9 b\u1ec1n n\u00e9n d\u1ecdc th\u1edb, \u0111\u1ed9 b\u1ec1n u\u1ed1n t\u0129nh, m\u00f4\u0111un \u0111\u00e0n h\u1ed3i, nh\u1ef1a th\u00f4ng – boron<\/td>\n<\/tr>\n

\n

<\/a><\/a>Effects of the mixture of rosin sizing agent and boric acid on some mechanical properties of Styrax<\/em> wood<\/strong><\/p>\n

The aim of this study was to evaluate the effect of rosin sizing agent on the mechanical properties of Styrax tonkinensis<\/em> wood treated with 1%, 2%, and 4% the mixture of rosin sizing agent and the mixture of rosin sizing agents and 3% boric acid. The results showed that the use of rosin singing agent alone or combination with boric acid to impregnate styrax wood has a certain influence on the mechanical properties of wood. Styrax wood after being treated by rosin sizing agent alone or in combination with boric acid has increased the compression strength parallel to grain of wood. In comparison with untreated controls, the compression strength of wood samples treated with the mixture of rosin and boric acid increased by approximately 30%. When the concentration of rosin sizing agent solutions increased from 1 – 4%, the compression strength tends to increase, but this increase was not significant. However, the rosin sing agent – boric acid treatments slightly reduced the modulus of rupture and modulus of elasticity in bending of the wood. In addition, the increase of rosin sing agent concentration does not significantly affect the modulus of rupture and modulus of elasticity in bending of the wood.<\/p>\n

Keywords:<\/em><\/strong> Boric acid, styrax wood, compression strength, MOR, MOE, rosin – boron<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

T\u1ea0P CH\u00cd KHOA H\u1eccC L\u00c2M NGHI\u1ec6P S\u1ed0 6 – 2020 1. Th\u1ef1c tr\u1ea1ng s\u1eed d\u1ee5ng c\u00e2y thu\u1ed1c t\u1ea1i x\u00e3 Ph\u00fa \u0110\u00f4, huy\u1ec7n Ph\u00fa L\u01b0\u01a1ng, t\u1ec9nh Th\u00e1i Nguy\u00ean Status of using medicinal plants in Phu Do commune, Phu Luong district, Thai Nguyen province Tr\u1ecbnh \u0110\u00ecnh Kh\u00e1 Th\u00e0o A D\u00ecnh Ng\u1ea3i S\u00ecnh Pao Nguy\u1ec5n Th\u1ecb Thu Hi\u1ec1n […]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[26,24,45],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/2200"}],"collection":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/comments?post=2200"}],"version-history":[{"count":3,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/2200\/revisions"}],"predecessor-version":[{"id":2394,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/posts\/2200\/revisions\/2394"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/media?parent=2200"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/categories?post=2200"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/en\/wp-json\/wp\/v2\/tags?post=2200"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}