{"id":14669,"date":"2015-04-14T09:48:54","date_gmt":"2015-04-14T02:48:54","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/?p=14669"},"modified":"2019-09-24T15:43:59","modified_gmt":"2019-09-24T08:43:59","slug":"bao-cao-ket-qua-de-tai-nghien-cuu-tuyen-chon-va-nhan-giong-thong-nhua-pinus-merkusii-jungh-et-de-vriese-khang-sau-rom-thong-dendrolimus-punctatus-walker","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/bao-cao-ket-qua-de-tai-nghien-cuu-tuyen-chon-va-nhan-giong-thong-nhua-pinus-merkusii-jungh-et-de-vriese-khang-sau-rom-thong-dendrolimus-punctatus-walker\/","title":{"rendered":"B\u00e1o c\u00e1o k\u1ebft qu\u1ea3 \u0111\u1ec1 t\u00e0i: Nghi\u00ean c\u1ee9u tuy\u1ec3n ch\u1ecdn v\u00e0 nh\u00e2n gi\u1ed1ng th\u00f4ng nh\u1ef1a (Pinus merkusii jungh et de vriese) kh\u00e1ng s\u00e2u r\u00f3m th\u00f4ng (Dendrolimus Punctatus Walker)."},"content":{"rendered":"<p style=\"text-align: right;\"><em>\u0110\u00e0o Ng\u1ecdc Quang<\/em><\/p>\n<p style=\"text-align: center;\">\u0110\u1eb6T V\u1ea4N \u0110\u1ec0<\/p>\n<p>T\u00e0i nguy\u00ean r\u1eebng ng\u00e0y c\u00e0ng b\u1ecb suy gi\u1ea3m c\u1ea3 v\u1ec1 s\u1ed1 l\u01b0\u1ee3ng v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng do nhu c\u1ea7u v\u1ec1 l\u00e2m s\u1ea3n v\u00e0 \u0111\u1ea5t canh t\u00e1c c\u1ee7a con ng\u01b0\u1eddi ng\u00e0y c\u00e0ng cao, k\u00e9o theo h\u00e0ng lo\u1ea1t c\u00e1c \u1ea3nh h\u01b0\u1edfng x\u1ea5u v\u1ec1 m\u00f4i tr\u01b0\u1eddng sinh th\u00e1i.<\/p>\n<p>C\u00e2y th\u00f4ng la\u0300 m\u00f4\u0323t trong nh\u01b0\u0303ng loa\u0300i c\u00e2y co\u0301 gia\u0301 tri\u0323 kinh t\u00ea\u0301 cao (bao g\u00f4\u0300m m\u00f4\u0323t s\u00f4\u0301 loa\u0300i th\u00f4ng chi\u0301nh nh\u01b0 Th\u00f4ng m\u00e3 v\u0129 <i>Pinus massoniana<\/i><i> <\/i>Lambert, Th\u00f4ng nh\u01b0\u0323a <i>Pinus merkusii<\/i><i> <\/i>Jungh et de Vries, Th\u00f4ng 3 la\u0301 <i>Pinus kesya<\/i><i> <\/i>Royle ex Gordon&#8230;), ngoa\u0300i g\u00f4\u0303 cho x\u00e2y d\u01b0\u0323ng, la\u0300m gi\u00e2\u0301y; nh\u01b0\u0323a th\u00f4ng co\u0300n \u0111\u01b0\u01a1\u0323c du\u0300ng trong nhi\u00ea\u0300u nga\u0300nh c\u00f4ng nghi\u00ea\u0323p nh\u01b0 s\u01a1n, v\u00e9cni, v\u00e2\u0323t li\u00ea\u0323u ca\u0301ch \u0111i\u00ea\u0323n va\u0300 ca\u0301c m\u0103\u0323t ha\u0300ng ti\u00eau du\u0300ng kha\u0301c. Lo\u00e0i g\u00e2y h\u1ea1i nguy hi\u1ec3m nh\u1ea5t cho th\u00f4ng l\u00e0 S\u00e2u r\u00f3m th\u00f4ng (<i>Dendrolimus punctatus<\/i> Walker) thu\u1ed9c h\u1ecd Ng\u00e0i k\u00e9n hay Ng\u00e0i kh\u00f4 l\u00e1 (v\u00ec h\u1eadu qu\u1ea3 c\u1ee7a s\u1ef1 ph\u00e1 h\u1ea1i l\u00e0m cho l\u00e1 kh\u00f4 ch\u00e1y) (Lasiocampidae), b\u1ed9 c\u00e1nh v\u1ea9y (Lepidoptera). S\u00e2u r\u00f3m th\u00f4ng (<i>D. punctatus<\/i> Walker) l\u00e0 m\u1ed9t lo\u00e0i trong gi\u1ed1ng S\u00e2u r\u00f3m th\u00f4ng. Theo \u0111i\u1ec1u tra nghi\u00ean c\u1ee9u v\u1ec1 \u0111\u1ecba l\u00fd c\u00f4n tr\u00f9ng h\u1ecdc c\u1ee7a Trung Qu\u1ed1c th\u00ec S\u00e2u r\u00f3m th\u00f4ng ph\u00e2n b\u1ed1 t\u1eeb s\u00f4ng Ho\u00e0ng H\u00e0 tr\u1edf xu\u1ed1ng. \u1ede n\u01b0\u1edbc ta S\u00e2u r\u00f3m th\u00f4ng c\u00f3 \u1edf h\u1ea7u h\u1ebft t\u1ea5t c\u1ea3 c\u00e1c v\u00f9ng tr\u1ed3ng th\u00f4ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u00f9ng tr\u1ed3ng Th\u00f4ng \u0111u\u00f4i ng\u1ef1a ho\u1eb7c Th\u00f4ng \u0111u\u00f4i ng\u1ef1a h\u1ed7n giao v\u1edbi Th\u00f4ng nh\u1ef1a nh\u01b0: Qu\u1ea3ng B\u00ecnh, H\u00e0 T\u0129nh, Ngh\u1ec7 An, Thanh Ho\u00e1, Th\u00e1i Nguy\u00ean, Qu\u1ea3ng Ninh. Hi\u1ec7n nay theo xu h\u01b0\u1edbng chung \u0111\u1ec3 h\u01b0\u1edbng t\u1edbi x\u00e2y d\u1ef1ng m\u1ed9t m\u00f4i tr\u01b0\u1eddng sinh th\u00e1i b\u1ec1n v\u1eefng ph\u00e1t tri\u1ec3n theo \u0111\u00fang ngh\u0129a c\u1ee7a n\u00f3 r\u1ea5t nhi\u1ec1u nh\u00e0 khoa h\u1ecdc tr\u00ean th\u1ebf gi\u1edbi \u0111\u00e3 v\u00e0 \u0111ang nghi\u00ean c\u1ee9u v\u1ec1 vi\u1ec7c ph\u00f2ng tr\u1eeb s\u00e2u b\u1ec7nh b\u1eb1ng bi\u1ec7n ph\u00e1p ch\u1ecdn gi\u1ed1ng kh\u00e1ng s\u00e2u b\u1ec7nh, l\u0129nh v\u1ef1c n\u00e0y b\u01b0\u1edbc \u0111\u1ea7u c\u0169ng \u0111\u00e3 \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u trong n\u00f4ng, l\u00e2m nghi\u1ec7p. R\u1ea5t nhi\u1ec1u gi\u1ea3 thuy\u1ebft \u0111\u01b0\u1ee3c \u0111\u01b0a ra v\u00e0 \u0111\u1ec3 ch\u1ee9ng minh \u0111\u01b0\u1ee3c \u0111i\u1ec1u \u0111\u00f3 v\u00e0 t\u00ecm ra \u0111\u01b0\u1ee3c c\u01a1 ch\u1ebf kh\u00e1ng s\u00e2u c\u1ee7a c\u00e1c lo\u00e0i n\u00e0y l\u00e0 r\u1ea5t quan tr\u1ecdng.<\/p>\n<p>\u0110\u1ec3 c\u00f3 c\u01a1 s\u1edf khoa h\u1ecdc trong vi\u1ec7c ch\u1ecdn gi\u1ed1ng Th\u00f4ng nh\u1ef1a kh\u00e1ng S\u00e2u r\u00f3m th\u00f4ng c\u1ea7n t\u00ecm hi\u1ec3u c\u01a1 ch\u1ebf kh\u00e1ng S\u00e2u r\u00f3m th\u00f4ng c\u1ee7a Th\u00f4ng nh\u1ef1a th\u00f4ng qua s\u1ef1 kh\u00e1c nhau gi\u1eefa c\u00e2y kh\u00e1ng v\u00e0 m\u1eabn c\u1ea3m v\u1edbi S\u00e2u r\u00f3m th\u00f4ng v\u1ec1:<\/p>\n<p>&#8211; C\u00e1c nh\u00f3m ch\u1ea5t h\u00f3a h\u1ecdc ch\u00ednh;<\/p>\n<p>&#8211; H\u00ecnh th\u00e1i, gi\u1ea3i ph\u1eabu l\u00e1;<\/p>\n<p>&#8211; Th\u00e0nh ph\u1ea7n vi sinh v\u1eadt n\u1ed9i sinh.<\/p>\n<p>\u0110\u00f3 l\u00e0 nh\u1eefng th\u00f4ng tin quan tr\u1ecdng ph\u1ee5c v\u1ee5 cho c\u00f4ng t\u00e1c ch\u1ecdn gi\u1ed1ng kh\u00e1ng s\u00e2u. Ch\u00ednh v\u00ec nh\u1eefng l\u00fd do tr\u00ean ch\u00fang t\u00f4i ti\u1ebfn h\u00e0nh nghi\u00ean c\u1ee9u \u0111\u1ec1 t\u00e0i: <b>Nghi\u00ean c\u1ee9u tuy\u1ec3n ch\u1ecdn v\u00e0 nh\u00e2n gi\u1ed1ng Th\u00f4ng nh\u1ef1a (<i>Pinus<\/i> <i>merkusii<\/i> Jungh et de Vriese) kh\u00e1ng S\u00e2u r\u00f3m th\u00f4ng (<i>Dendrolimus<\/i> <i>punctatus<\/i> Walker).<\/b><\/p>\n<p><a href=\"http:\/\/vafs.gov.vn\/vn\/2015\/04\/bao-cao-ket-qua-de-tai-nghien-cuu-tuyen-chon-va-nhan-giong-thong-nhua-pinus-merkusii-jungh-et-de-vriese-khang-sau-rom-thong-dendrolimus-punctatus-walker\/15-04-10-thongnhua\/\" rel=\"attachment wp-att-14707\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-14707\" src=\"http:\/\/vafs.gov.vn\/vn\/wp-content\/uploads\/sites\/2\/2015\/04\/15-04-10-Thongnhua.jpg\" alt=\"15-04-10 Thongnhua\" width=\"435\" height=\"329\" \/><\/a><\/p>\n<p>N\u1ed8I DUNG V\u00c0 PH\u01af\u01a0NG PH\u00c1P NGHI\u00caN C\u1ee8U<\/p>\n<p><strong>1. N\u00f4\u0323i dung nghi\u00ean c\u01b0\u0301u<\/strong><\/p>\n<p><em>1.1. Tuy\u1ec3n ch\u1ecdn m\u1ed9t s\u1ed1 c\u00e2y tr\u1ed9i c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng S\u00e2u r\u00f3m th\u00f4ng<\/em><\/p>\n<ul>\n<li>\u0110i\u1ec1u tra kh\u1ea3o s\u00e1t, ph\u00e1t hi\u1ec7n c\u00e1 th\u1ec3 th\u00f4ng c\u00f3 t\u00ednh kh\u00e1ng S\u00e2u r\u00f3m th\u00f4ng (kh\u00f4ng b\u1ecb S\u00e2u r\u00f3m th\u00f4ng t\u1ea5n c\u00f4ng ho\u1eb7c \u00edt b\u1ecb t\u1ea5n c\u00f4ng) l\u00e0m c\u01a1 s\u1edf \u0111\u1ec3 ti\u1ebfn h\u00e0nh c\u00f4ng t\u00e1c ch\u1ecdn gi\u1ed1ng.<\/li>\n<li>Nghi\u00ean c\u1ee9u ph\u00e2n t\u00edch sinh h\u00f3a c\u00e1c m\u1eabu l\u00e1 c\u1ee7a c\u00e1c c\u00e2y tuy\u1ec3n ch\u1ecdn c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng v\u00e0 c\u00e2y m\u1eabn c\u1ea3m v\u1edbi SRT.<\/li>\n<li>Nu\u00f4i S\u00e2u r\u00f3m th\u00f4ng t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng v\u00e0 trong ph\u00f2ng th\u00ed nghi\u1ec7m b\u1eb1ng l\u00e1 c\u00e1c c\u00e2y tuy\u1ec3n ch\u1ecdn c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng v\u00e0 c\u00e2y m\u1eabm c\u1ea3m v\u1edbi S\u00e2u r\u00f3m th\u00f4ng.<\/li>\n<li>So s\u00e1nh m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m gi\u1eefa c\u00e2y kh\u00e1ng v\u00e0 c\u00e2y m\u1eabn c\u1ea3m.<\/li>\n<li>Nghi\u00ean c\u1ee9u ph\u01b0\u01a1ng ph\u00e1p nh\u00e2n gi\u1ed1ng sinh d\u01b0\u1ee1ng th\u00edch h\u1ee3p (gi\u00e2m hom, chi\u1ebft, gh\u00e9p) \u0111\u1ec3 nh\u00e2n gi\u1ed1ng nh\u1eefng c\u00e2y m\u1eb9 tuy\u1ec3n ch\u1ecdn.<\/li>\n<li>T\u1ea1o c\u00e2y con nh\u00e2n gi\u1ed1ng sinh d\u01b0\u1ee1ng \u0111\u1ec3 tr\u1ed3ng v\u01b0\u1eddn v\u1eadt li\u1ec7u.<\/li>\n<li>Thi\u1ebft l\u1eadp 01 v\u01b0\u1eddn v\u1eadt li\u1ec7u t\u1eeb nh\u1eefng c\u00e2y con nh\u00e2n gi\u1ed1ng sinh d\u01b0\u1ee1ng kh\u00e1ng S\u00e2u r\u00f3m th\u00f4ng.<\/li>\n<\/ul>\n<p><em>1.2. Th\u00ed nghi\u1ec7m nh\u00e2n gi\u1ed1ng sinh d\u01b0\u1ee1ng c\u00e1c c\u00e2y tr\u1ed9i tuy\u1ec3n ch\u1ecdn<\/em><\/p>\n<p><em>1.3. Th\u0103m quan h\u1ecdc h\u1ecfi kinh nghi\u1ec7m<\/em><\/p>\n<p>Th\u0103m quan h\u1ecdc h\u1ecfi kinh nghi\u1ec7m v\u1ec1 ph\u00e2n t\u00edch sinh h\u00f3a c\u00e1c ch\u1ea5t c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng s\u00e2u v\u00e0 x\u00e1c \u0111\u1ecbnh c\u01a1 ch\u1ebf kh\u00e1ng s\u00e2u t\u1ea1i Vi\u1ec7n Nghi\u00ean c\u1ee9u L\u00e2m nghi\u1ec7p v\u00e0 L\u00e2m s\u1ea3n Nh\u1eadt B\u1ea3n.<\/p>\n<p><em>1.4. Thi\u1ebft l\u1eadp khu kh\u1ea3o nghi\u1ec7m h\u1eadu th\u1ebf<\/em><\/p>\n<p>X\u00e2y d\u1ef1ng 4ha Th\u00f4ng nh\u1ef1a kh\u1ea3o nghi\u1ec7m h\u1eadu th\u1ebf t\u1eeb h\u1ea1t c\u1ee7a nh\u1eefng c\u00e1 th\u1ec3 Th\u00f4ng nh\u1ef1a c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng SRT m\u00e0 c\u00f4ng t\u00e1c \u0111i\u1ec1u tra \u0111\u00e3 ch\u1ecdn \u0111\u01b0\u1ee3c \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 l\u1ea1i kh\u1ea3 n\u0103ng kh\u00e1ng SRT c\u1ee7a ch\u00fang t\u1ea1i 4 \u0111i\u1ec3m th\u01b0\u1eddng xuy\u00ean x\u1ea3y ra d\u1ecbch SRT: H\u00e0 Trung, Thanh H\u00f3a; Nam \u0110\u00e0n, Ngh\u1ec7 An; Can L\u1ed9c, H\u00e0 T\u0129nh v\u00e0 Qu\u1ea3ng Tr\u1ea1ch, Qu\u1ea3ng B\u00ecnh<\/p>\n<p><em>1.5. \u0110\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 b\u1ecb h\u1ea1i c\u1ee7a c\u00e1c d\u00f2ng, gia \u0111\u00ecnh trong v\u01b0\u1eddn v\u1eadt li\u1ec7u v\u00e0 khu kh\u1ea3o nghi\u1ec7m<\/em><\/p>\n<ul>\n<li>\u0110\u00e1nh gi\u00e1 v\u00e0 so s\u00e1nh t\u1ef7 l\u1ec7 s\u1ed1ng\/ch\u1ebft, m\u1ee9c \u0111\u1ed9 sinh tr\u01b0\u1edfng c\u1ee7a SRT khi \u0111\u01b0\u1ee3c nu\u00f4i b\u1eb1ng l\u00e1 c\u00e1c d\u00f2ng, gia \u0111\u00ecnh Th\u00f4ng nh\u1ef1a th\u00f4ng qua g\u00e2y nu\u00f4i SRT t\u1ea1i th\u1ef1c \u0111\u1ecba v\u00e0 trong ph\u00f2ng th\u00ed nghi\u1ec7m.<\/li>\n<li>Ph\u00e2n c\u1ea5p m\u1ee9c \u0111\u1ed9 b\u1ecb h\u1ea1i c\u1ee7a c\u00e1c d\u00f2ng, gia \u0111\u00ecnh Th\u00f4ng nh\u1ef1a.<\/li>\n<\/ul>\n<p><strong>2. Ph\u01b0\u01a1ng pha\u0301p nghi\u00ean c\u01b0\u0301u<\/strong><\/p>\n<p><em>2.1. Tuy\u1ec3n ch\u1ecdn m\u1ed9t s\u1ed1 c\u00e2y tr\u1ed9i c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng S\u00e2u r\u00f3m th\u00f4ng<\/em><\/p>\n<p>2.1.1. \u0110i\u1ec1u tra ph\u00e1t hi\u1ec7n c\u00e1 th\u1ec3 Th\u00f4ng nh\u1ef1a kh\u00e1ng v\u00e0 m\u1eabn c\u1ea3m v\u1edbi S\u00e2u r\u00f3m th\u00f4ng<\/p>\n<p><b>\u0110i\u1ec1u tra theo tuy\u1ebfn: <\/b>Ti\u1ebfn h\u00e0nh \u0111i\u1ec1u tra tr\u00ean nh\u1eefng khu v\u1ef1c \u0111\u00e3, \u0111ang v\u00e0 sau khi b\u1ecb S\u00e2u r\u00f3m th\u00f4ng h\u1ea1i, t\u1eeb \u0111\u00f3 ph\u00e1t hi\u1ec7n nh\u1eefng v\u00f9ng b\u1ecb S\u00e2u r\u00f3m th\u00f4ng h\u1ea1i, v\u00f9ng kh\u00f4ng b\u1ecb h\u1ea1i v\u00e0 c\u00e1c c\u00e1 th\u1ec3 kh\u00f4ng b\u1ecb h\u1ea1i.<\/p>\n<p><b>\u0110i\u1ec1u tra theo \u00f4 ti\u00eau chu\u1ea9n: <\/b>\u0110i\u1ec1u tra t\u1ef7 l\u1ec7 v\u00e0 m\u1ee9c \u0111\u1ed9 b\u1ecb h\u1ea1i hi\u1ec7n t\u1ea1i c\u1ee7a s\u00e2u g\u00e2y ra, s\u1ed1 c\u00e2y trong \u00f4 ti\u00eau chu\u1ea9n.<\/p>\n<p>2.1.2. Nghi\u00ean c\u1ee9u ph\u00e2n t\u00edch sinh h\u00f3a c\u00e1c m\u1eabu l\u00e1 c\u1ee7a c\u00e1c c\u00e2y tuy\u1ec3n ch\u1ecdn c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng v\u00e0 c\u00e2y m\u1eabn c\u1ea3m v\u1edbi S\u00e2u r\u00f3m th\u00f4ng<\/p>\n<ul>\n<li>Ph\u01b0\u01a1ng pha\u0301p xa\u0301c \u0111i\u0323nh \u0111i\u0323nh ti\u0301nh ca\u0301c l\u01a1\u0301p ch\u00e2\u0301t chi\u0301nh (kh\u00f4ng pha\u0309i tha\u0300nh ph\u00e2\u0300n tinh d\u00e2\u0300u<\/li>\n<li>Ph\u01b0\u01a1ng pha\u0301p xa\u0301c \u0111i\u0323nh \u0111i\u0323nh ti\u0301nh tha\u0300nh ph\u00e2\u0300n tinh d\u00e2\u0300u<\/li>\n<\/ul>\n<h4>2.1.3. Nu\u00f4i S\u00e2u r\u00f3m th\u00f4ng t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng v\u00e0 trong ph\u00f2ng th\u00ed nghi\u1ec7m<\/h4>\n<h4>2.1.4. So s\u00e1nh m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m gi\u1eefa c\u00e2y kh\u00e1ng v\u00e0 c\u00e2y m\u1eabn c\u1ea3m<\/h4>\n<h3>2.2. Nghi\u00ean c\u1ee9u nh\u00e2n gi\u1ed1ng sinh d\u01b0\u1ee1ng c\u00e1c c\u00e2y tr\u1ed9i tuy\u1ec3n ch\u1ecdn<\/h3>\n<h4>2.2.1. Ph\u01b0\u01a1ng ph\u00e1p chi\u1ebft c\u00e0nh<\/h4>\n<h4>2.2.2. Ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p c\u00e0nh<\/h4>\n<h4>2.2.3. Ph\u01b0\u01a1ng ph\u00e1p gi\u00e2m hom<\/h4>\n<p style=\"text-align: center;\">K\u1ebeT QU\u1ea2 NGHI\u00caN C\u1ee8U V\u00c0 TH\u1ea2O LU\u1eacN<\/p>\n<p><strong>1. Tuy\u1ec3n ch\u1ecdn m\u1ed9t s\u1ed1 c\u00e2y tr\u1ed9i c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng S\u00e2u r\u00f3m th\u00f4ng<\/strong><\/p>\n<h3>1.1. \u0110i\u1ec1u tra, ph\u00e1t hi\u1ec7n c\u00e1 th\u1ec3 th\u00f4ng c\u00f3 t\u00ednh kh\u00e1ng S\u00e2u r\u00f3m th\u00f4ng<\/h3>\n<ul>\n<li>T\u1ea1i Thanh H\u00f3a: \u00f4 ti\u00eau chu\u1ea9n TH4: 3 c\u00e2y; \u00f4 ti\u00eau chu\u1ea9n TH5: 12 c\u00e2y.<\/li>\n<li>T\u1ea1i Ngh\u1ec7 AN: \u00f4 ti\u00eau chu\u1ea9n NA5: 15 c\u00e2y.<\/li>\n<li>T\u1ea1i H\u00e0 T\u0129nh: \u00f4 ti\u00eau chu\u1ea9n HT4: 13c\u00e2y; \u00f4 ti\u00eau chu\u1ea9n HT 5: 2 c\u00e2y<\/li>\n<li>T\u1ea1i Qu\u1ea3ng Binh \u00f4 ti\u00eau chu\u1ea9n QB5: 15 c\u00e2y.<\/li>\n<\/ul>\n<h3>1.2. Ph\u00e2n t\u00edch sinh h\u00f3a c\u00e1c m\u1eabu l\u00e1 c\u1ee7a c\u00e1c c\u00e2y tuy\u1ec3n ch\u1ecdn<\/h3>\n<h4>1.2.1. Xa\u0301c \u0111i\u0323nh \u0111i\u0323nh ti\u0301nh ca\u0301c l\u01a1\u0301p ch\u00e2\u0301t chi\u0301nh (kh\u00f4ng pha\u0309i tha\u0300nh ph\u00e2\u0300n tinh d\u00e2\u0300u)<\/h4>\n<p>\u0110i\u0323nh ti\u0301nh ca\u0301c l\u01a1\u0301p ch\u00e2\u0301t cho th\u00e2\u0301y v\u00ea\u0300 c\u01a1 ba\u0309n, ca\u0301c m\u00e2\u0303u l\u00e1 c\u1ee7a c\u00e2y c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng v\u00e0 m\u1eabn c\u1ea3m v\u1edbi S\u00e2u r\u00f3m th\u00f4ng \u0111\u00ea\u0300u co\u0301 tha\u0300nh ph\u00e2\u0300n c\u00e1c h\u1ee3p ch\u1ea5t kha\u0301 gi\u00f4\u0301ng nhau, l\u01a1\u0301p ch\u00e2\u0301t chi\u0301nh la\u0300 ca\u0301c ch\u00e2\u0301t d\u00e2\u0300u (ch\u00e2\u0301t be\u0301o), sterol va\u0300 tecpenoit.<\/p>\n<p>Nghi\u00ean c\u01b0\u0301u da\u0309i ca\u0301c ch\u00e2\u0301t t\u01b0\u0300 ph\u00e2n c\u01b0\u0323c \u0111\u00ea\u0301n ke\u0301m ph\u00e2n c\u01b0\u0323c thi\u0300 h\u00e2\u0300u nh\u01b0 kh\u00f4ng co\u0301 s\u01b0\u0323 kha\u0301c nhau gi\u01b0\u0303a ca\u0301c m\u00e2\u0303u l\u00e1 c\u1ee7a c\u00e2y c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng v\u00e0 m\u1eabn c\u1ea3m v\u1edbi S\u00e2u r\u00f3m th\u00f4ng. Nh\u01b0 v\u00e2\u0323y, tha\u0300nh ph\u00e2\u0300n ca\u0301c h\u01a1\u0323p ch\u00e2\u0301t (kh\u00f4ng pha\u0309i la\u0300 tinh d\u00e2\u0300u) cu\u0309a ca\u0301c m\u00e2\u0303u kh\u00f4ng kh\u00e1c nhau.<\/p>\n<p>K\u00ea\u0301t qua\u0309 na\u0300y ch\u01b0a \u0111u\u0309 c\u01a1 s\u01a1\u0309 \u0111\u00ea\u0309 ph\u00e2n bi\u00ea\u0323t \u0111\u01b0\u01a1\u0323c s\u01b0\u0323 kha\u0301c nhau gi\u01b0\u0303a ca\u0301c l\u1edbp ch\u00e2\u0301t c\u00f3 trong l\u00e1 c\u00e2y c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng v\u00e0 m\u1eabn c\u1ea3m v\u1edbi S\u00e2u r\u00f3m th\u00f4ng.<\/p>\n<h4>1.2.2. Xa\u0301c \u0111i\u0323nh tha\u0300nh ph\u00e2\u0300n hoa\u0301 ho\u0323c va\u0300 ha\u0300m l\u01b0\u01a1\u0323ng cu\u0309a tinh d\u00e2\u0300u ca\u0301c m\u00e2\u0303u l\u00e1 b\u0103\u0300ng ph\u01b0\u01a1ng pha\u0301p s\u0103\u0301c ky\u0301 khi\u0301 &#8211; kh\u00f4\u0301i ph\u00f4\u0309<\/h4>\n<p>K\u1ebft qu\u1ea3 ph\u00e2n t\u00edch cho th\u1ea5y \u1edf c\u1ea3 4 \u0111\u1ecba \u0111i\u1ec3m nghi\u00ean c\u1ee9u, to\u00e0n b\u1ed9 m\u1eabu l\u00e1 c\u1ee7a 12 c\u00e2y m\u1eabn c\u1ea3m \u0111\u1ec1u c\u00f3 nh\u1eefng ch\u1ea5t m\u00e0 c\u00e1c m\u1eabu l\u00e1 c\u1ee7a 60 c\u00e2y kh\u00e1ng \u0111\u1ec1u kh\u00f4ng c\u00f3. \u0110\u1ed3ng th\u1eddi, th\u00e0nh ph\u1ea7n v\u00e0 h\u00e0m l\u01b0\u1ee3ng c\u00e1c h\u1ee3p ch\u1ea5t thu\u1ed9c nh\u00f3m terpene gi\u1eefa c\u00e1c m\u1eabu l\u00e1 c\u1ee7a c\u00e2y kh\u00e1ng v\u00e0 m\u1eabn c\u1ea3m c\u00f3 s\u1ef1 kh\u00e1c nhau. C\u1ee5 th\u1ec3, h\u1ea7u h\u1ebft c\u00e1c m\u1eabu l\u00e1 Th\u00f4ng nh\u1ef1a c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng S\u00e2u r\u00f3m th\u00f4ng \u0111\u1ec1u c\u00f3 h\u00e0m l\u01b0\u1ee3ng c\u00e1c h\u1ee3p ch\u1ea5t thu\u1ed9c nh\u00f3m terpene l\u1edbn h\u01a1n c\u00e1c m\u1eabu l\u00e1 Th\u00f4ng nh\u1ef1a m\u1eabn c\u1ea3m v\u1edbi S\u00e2u r\u00f3m th\u00f4ng. \u0110\u1ed3ng th\u1eddi, c\u00e1c m\u1eabu l\u00e1 c\u1ee7a c\u00e2y m\u1eabn c\u1ea3m kh\u00f4ng th\u1ea5y xu\u1ea5t hi\u1ec7n m\u1ed9t s\u1ed1 h\u1ee3p ch\u1ea5t thu\u1ed9c nh\u00f3m terpene, ho\u1eb7c c\u00f3 nh\u01b0ng v\u1edbi h\u00e0m l\u01b0\u1ee3ng r\u1ea5t nh\u1ecf, nh\u01b0: <b>a<\/b><b>-Cadinene; <\/b><b>a<\/b><b>-Phellandrene; <\/b><b>b<\/b><b>-Cadinene; <\/b><b>b<\/b><b>-Cubebene; <\/b><b>b<\/b><b>-Terpinene; Limonene<\/b>. \u0110\u1eb7c bi\u1ec7t, nh\u1eefng c\u00e2y c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng S\u00e2u r\u00f3m th\u00f4ng v\u00e0 c\u00f3 s\u1ea3n l\u01b0\u1ee3ng cao l\u00e0 nh\u1eefng c\u00e2y \u0111\u1ec1u c\u00f3 h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t <b>d<\/b><b>-3-Carene<\/b> cao.<\/p>\n<h3>1.3. Nu\u00f4i S\u00e2u r\u00f3m th\u00f4ng t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng v\u00e0 trong ph\u00f2ng th\u00ed nghi\u1ec7m<\/h3>\n<p>\u1ede c\u00e1c l\u1ed3ng nu\u00f4i b\u1eb1ng l\u00e1 c\u1ee7a nh\u1eefng c\u00e2y th\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng S\u00e2u r\u00f3m th\u00f4ng h\u1ea7u h\u1ebft s\u00e2u non ch\u1ebft ngay sau khi tr\u1ee9ng n\u1edf kho\u1ea3ng 4-5 ng\u00e0y. Ch\u1ec9 c\u00f3 19 l\u1ed3ng nu\u00f4i c\u00f3 s\u00e2u non ph\u00e1t tri\u1ec3n \u0111\u1ebfn giai \u0111o\u1ea1n nh\u1ed9ng, tuy nhi\u00ean t\u1ec9 l\u1ec7 s\u1ed1ng ch\u1ec9 \u0111\u1ea1t kho\u1ea3ng 7% so v\u1edbi 70% \u1edf nh\u1eefng l\u1ed3ng nu\u00f4i b\u1eb1ng l\u00e1 c\u00e2y m\u1eabn c\u1ea3m, th\u1eddi gian ho\u00e0n th\u00e0nh v\u00f2ng \u0111\u1eddi ng\u1eafn h\u01a1n, tr\u1ecdng l\u01b0\u1ee3ng nh\u1ed9ng c\u0169ng nh\u1ecf h\u01a1n so v\u1edbi nh\u1ed9ng c\u1ee7a S\u00e2u r\u00f3m th\u00f4ng nu\u00f4i b\u1eb1ng nh\u1eefng l\u00e1 c\u00e2y m\u1eabn c\u1ea3m.<\/p>\n<h3>1.4. So s\u00e1nh m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m gi\u1eefa c\u00e2y kh\u00e1ng v\u00e0 c\u00e2y m\u1eabn c\u1ea3m<\/h3>\n<h4>1.4.1. So s\u00e1nh \u0111\u1eb7c \u0111i\u1ec3m h\u00ecnh th\u00e1i v\u00e0 gi\u1ea3i ph\u1eabu l\u00e1 c\u1ee7a c\u00e2y kh\u00e1ng v\u00e0 c\u00e2y m\u1eabn c\u1ea3m<\/h4>\n<p><b><span style=\"text-decoration: underline;\">\u0110\u1eb7c \u0111i\u1ec3m h\u00ecnh th\u00e1i l\u00e1<\/span><\/b><\/p>\n<p>Thu m\u1eabu l\u00e1 c\u1ee7a 15 c\u00e2y \u0111\u1ea1i di\u1ec7n c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng s\u00e2u v\u00e0 3 m\u1eabu l\u00e1 c\u1ee7a c\u00e2y m\u1eabn c\u1ea3m t\u1ea1i H\u00e0 T\u0129nh ti\u1ebfn h\u00e0nh so s\u00e1nh m\u1ed9t s\u1ed1 \u0111\u1eb7c tr\u01b0ng c\u1ee7a l\u00e1 nh\u01b0 m\u00e0u s\u1eafc, k\u00edch th\u01b0\u1edbc v\u00e0 \u0111\u1ed9 c\u1ee9ng c\u1ee7a l\u00e1. K\u1ebft qu\u1ea3 cho th\u1ea5y l\u00e1 c\u1ee7a nh\u1eefng c\u00e2y c\u00f3 kh\u1ea3 n\u0103mg kh\u00e1ng S\u00e2u r\u00f3m th\u00f4ng c\u00f3 m\u00e0u xanh \u0111\u1eadm h\u01a1n, c\u1ee9ng h\u01a1n l\u00e1 c\u1ee7a nh\u1eefng c\u00e2y m\u1eabn c\u1ea3m. \u0110\u1ed3ng th\u1eddi, k\u00edch th\u01b0\u1edbc l\u00e1 c\u0169ng to h\u01a1n r\u1ea5t nhi\u1ec1u so v\u1edbi l\u00e1 c\u00e2y m\u1eabn c\u1ea3m, d\u00e0i h\u01a1n \u0111\u1ebfn 31% (32,47cm sov\u1edbi 22,27cm), r\u1ed9ng h\u01a1n \u0111\u1ebfn 33% (13,09mm so v\u1edbi 8,8mm)<\/p>\n<p><b><span style=\"text-decoration: underline;\">\u0110\u1eb7c \u0111i\u1ec3m c\u1ea5u t\u1ea1o l\u00e1<\/span><\/b><\/p>\n<p>\u0110\u1eb7c \u0111i\u1ec3m c\u1ea5u t\u1ea1o c\u1ee7a l\u00e1 c\u00e2y kh\u00e1ng s\u00e2u c\u00f3 t\u1ea7ng cutin, t\u1ea7ng bi\u1ec3u b\u00ec v\u00e0 t\u1ea7ng h\u1ea1 b\u00ec d\u1ea7y, t\u1ea7ng nhu m\u00f4 \u0111\u1ed3ng h\u00f3a m\u1ecfng n\u00ean l\u00e1 c\u00e2y r\u1ea5t c\u1ee9ng v\u00e0 c\u00f3 th\u1ec3 v\u00ec th\u1ebf n\u00ean s\u00e2u non kh\u00f4ng th\u00edch \u0103n. Trong khi \u0111\u00f3 l\u00e1 c\u1ee7a c\u00e2y m\u1eabn c\u1ea3m c\u00f3 l\u1edbp cutin, t\u1ea7ng bi\u1ec3u b\u00ec v\u00e0 h\u1ea1 b\u00ec m\u1ecfng, l\u1edbp nhu m\u00f4 \u0111\u1ed3ng h\u00f3a l\u1edbn n\u00ean l\u00e1 c\u00e2y m\u1ec1m h\u01a1n, s\u00e2u th\u00edch \u0103n h\u01a1n.<\/p>\n<h4>1.4.2. So s\u00e1nh m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m kh\u00e1c gi\u1eefa c\u00e2y kh\u00e1ng v\u00e0 c\u00e2y m\u1eabn c\u1ea3m<\/h4>\n<p>C\u00e2y kh\u00e1ng v\u00e0 c\u00e2y m\u1eabn c\u1ea3m c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t r\u00f5 r\u00e0ng v\u1ec1 h\u00ecnh th\u00e1i b\u00ean ngo\u00e0i nh\u01b0: g\u00f3c ph\u00e2n c\u00e0nh, m\u00e0u s\u1eafc v\u1ecf, \u0111\u1ed9 n\u1ee9t, m\u00e0u s\u1eafc nh\u1ef1a v\u00e0 s\u1ea3n l\u01b0\u1ee3ng nh\u1ef1a. Khi \u0111i \u0111i\u1ec1u tra ngo\u00e0i th\u1ef1c \u0111\u1ecba s\u01a1 b\u1ed9 c\u00f3 th\u1ec3 nh\u1eadn ra \u0111\u01b0\u1ee3c s\u1ef1 kh\u00e1c nhau gi\u1eefa c\u00e2y kh\u00e1ng v\u00e0 m\u1eabn c\u1ea3m v\u1edbi S\u00e2u r\u00f3m th\u00f4ng th\u00f4ng qua c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m h\u00ecnh d\u1ea1ng b\u00ean ngo\u00e0i, \u0111\u1eb7c bi\u1ec7t l\u00e0 k\u00edch th\u01b0\u1edbc l\u00e1, \u0111\u1ed9 c\u1ee9ng c\u1ee7a l\u00e1, m\u00e0u s\u1eafc l\u00e1 v\u00e0 g\u00f3c ph\u00e2n c\u00e0nh.<\/p>\n<p><strong>2. Nghi\u00ean c\u1ee9u nh\u00e2n gi\u1ed1ng sinh d\u01b0\u1ee1ng c\u00e1c c\u00e2y tr\u1ed9i tuy\u1ec3n ch\u1ecdn<\/strong><\/p>\n<h4>2.1.1. Th\u00ed nghi\u1ec7m gh\u00e9p c\u00e0nh<\/h4>\n<p>T\u1ec9 l\u1ec7 s\u1ed1ng c\u1ee7a c\u00e2y con khi \u0111\u01b0\u1ee3c nh\u00e2n gi\u1ed1ng b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p \u00e1p c\u00e0nh cao h\u01a1n so v\u1edbi ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p n\u00eam (7,3% so v\u1edbi 4,9%). Tuy nhi\u00ean, c\u1ea3 hai ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p \u0111\u1ec1u cho k\u1ebft qu\u1ea3 r\u1ea5t th\u1ea5p, t\u1ec9 l\u1ec7 s\u1ed1ng kh\u00f4ng \u0111\u1ea1t nh\u01b0 mong mu\u1ed1n. Nh\u01b0 v\u1eady c\u00f3 th\u1ec3 n\u00f3i r\u1eb1ng r\u1ea5t kh\u00f3 \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y trong th\u1ef1c t\u1ebf.<\/p>\n<h4>2.1.2. Th\u00ed nghi\u1ec7m gi\u00e2m hom<\/h4>\n<p>K\u1ebft qu\u1ea3 gi\u00e2m hom Th\u00f4ng nh\u1ef1a v\u1edbi lo\u1ea1i thu\u1ed1c k\u00edch th\u00edch ra r\u1ec5 IBA \u1edf 2 n\u1ed3ng \u0111\u1ed9 kh\u00e1c nhau: 1% v\u00e0 1,5% cho th\u1ea5y \u1edf n\u1ed3ng \u0111\u1ed9 1% cho t\u1ec9 l\u1ec7 s\u1ed1ng cao h\u01a1n so v\u1edbi n\u1ed3ng \u0111\u1ed9 1,5% (4,9% so v\u1edbi 3,2%). Tuy nhi\u00ean, v\u1edbi c\u1ea3 2 n\u1ed3ng \u0111\u1ed9 n\u00e0y th\u00ec t\u1ec9 l\u1ec7 s\u1ed1ng c\u1ee7a c\u00e2y hom v\u1eabn r\u1ea5t th\u1ea5p. C\u0169ng gi\u1ed1ng nh\u01b0 ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p, c\u00f3 th\u1ec3 n\u00f3i r\u1eb1ng r\u1ea5t kh\u00f3 \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y trong th\u1ef1c t\u1ebf.<\/p>\n<h4>2.1.3. Th\u00ed nghi\u1ec7m chi\u1ebft c\u00e0nh<\/h4>\n<p>Trong 3 ph\u01b0\u01a1ng ph\u00e1p nh\u00e2n gi\u1ed1ng sinh d\u01b0\u1ee1ng \u0111\u1ed1i v\u1edbi Th\u00f4ng nh\u1ef1a, ch\u1ec9 c\u00f3 ph\u01b0\u01a1ng ph\u00e1p chi\u1ebft c\u00e0nh cho k\u1ebft qu\u1ea3 cao nh\u1ea5t (60%). Nh\u01b0 v\u1eady c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y trong nh\u00e2n gi\u1ed1ng sinh d\u01b0\u1ee1ng \u0111\u1ed1i v\u1edbi Th\u00f4ng nh\u1ef1a. Tuy nhi\u00ean \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u qu\u1ea3 cao c\u1ea7n tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t theo theo qui tr\u00ecnh nh\u01b0 sau, \u0111\u1eb7c bi\u1ec7t l\u00e0 kh\u00e2u khoanh v\u1ecf:<\/p>\n<ul>\n<li><b><i>Ch\u1ecdn c\u00e0nh chi\u1ebft<\/i><\/b>: C\u00e0nh chi\u1ebft l\u00e0 c\u00e0nh b\u00e1nh t\u1ebb, c\u00f3 \u0111\u01b0\u1eddng k\u00ednh g\u1ed1c c\u00e0nh t\u1eeb 1,5-2,0cm, l\u00e1 tr\u00ean c\u00e0nh ph\u00e1t tri\u1ec3n \u0111\u1ea1t k\u00edch th\u01b0\u1edbc t\u1ed1i \u0111a, kh\u00f4ng s\u00e2u b\u1ec7nh, d\u1ecb t\u1eadt.<\/li>\n<li><b><i>Th\u1eddi v\u1ee5 chi\u1ebft<\/i><\/b>: T\u1eeb th\u00e1ng 4 \u0111\u1ebfn th\u00e1ng 6, ho\u1eb7c t\u1eeb th\u00e1ng 9 \u0111\u1ebfn th\u00e1ng 11 h\u00e0ng n\u0103m.<\/li>\n<li><b><i>Khoanh v\u1ecf<\/i><\/b>: Kho\u1ea3ng c\u00e1ch khoanh v\u1ecf l\u00e0 3cm. D\u00f9ng dao c\u1eaft h\u1ebft l\u1edbp v\u1ecf, c\u1ea1o k\u1ef9 xung quanh v\u00e0 d\u00f9ng c\u1ed3n 90<sup>o<\/sup> lau s\u1ea1ch, sau 3 ng\u00e0y lau c\u1ed3n 1 l\u1ea7n, \u0111\u1ec3 sau kho\u1ea3ng 10 ng\u00e0y m\u1edbi b\u00f3 b\u1ea7u.<\/li>\n<\/ul>\n<h4>2.1.4. X\u00e2y d\u1ef1ng v\u01b0\u1eddn v\u1eadt li\u1ec7u<\/h4>\n<p>T\u1eeb nh\u1eefng c\u00e2y con nh\u00e2n gi\u1ed1ng sinh d\u01b0\u1ee1ng (gi\u00e2m hom, gh\u00e9p c\u00e0nh, chi\u1ebft c\u00e0nh), \u0111\u1ec1 t\u00e0i \u0111\u00e3 ti\u1ebfn h\u00e0nh x\u00e2y d\u1ef1ng m\u1ed9t v\u01b0\u1eddn v\u1eadt li\u1ec7u gi\u1ed1ng t\u1ea1i \u0110\u1ea1i L\u1ea3i, V\u0129nh Ph\u00fac. V\u01b0\u1eddn gi\u1ed1ng n\u00e0y \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng ch\u1ee7 y\u1ebfu t\u1eeb nh\u1eefng c\u00e2y con nh\u00e2n gi\u1ed1ng b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p chi\u1ebft c\u00e0nh.<\/p>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td valign=\"top\" width=\"619\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>3. K\u1ebft qu\u1ea3 chuy\u1ebfn th\u0103m quan h\u1ecdc h\u1ecfi kinh nghi\u1ec7m x\u00e1c \u0111\u1ecbnh c\u01a1 ch\u1ebf kh\u00e1ng s\u00e2u t\u1ea1i Nh\u1eadt B\u1ea3n<\/h2>\n<p>\u0110o\u00e0n d\u00e0nh th\u1eddi gian 10 ng\u00e0y (t\u1eeb ng\u00e0y 19 th\u00e1ng 5 \u0111\u1ebfn ng\u00e0y 28 th\u00e1ng 5 n\u0103m 2008) l\u00e0m vi\u1ec7c v\u00e0 h\u1ecdc t\u1eadp t\u1ea1i ph\u00f2ng th\u00ed nghi\u1ec7m v\u1ec1 sinh h\u00f3a c\u00f4n tr\u00f9ng c\u00f9ng v\u1edbi ti\u1ebfn s\u0129 Tadakaru NAKASHIMA v\u1ec1 ph\u01b0\u01a1ng ph\u00e1p x\u00e1c \u0111\u1ecbnh \u0111\u1ecbnh t\u00ednh c\u00e1c l\u1edbp ch\u1ea5t c\u00f3 trong l\u00e1 th\u00f4ng. \u0110\u01b0\u1ee3c s\u1ef1 gi\u00fap \u0111\u1ee1, c\u1ed9ng t\u00e1c nhi\u1ec7t t\u00ecnh c\u1ee7a ti\u1ebfn s\u0129 Tadakaru NAKASHIMA, \u0111o\u00e0n \u0111\u00e3 nghi\u00ean c\u1ee9u v\u00e0 h\u1ecdc t\u1eadp c\u00e1ch t\u00e1ch chi\u1ebft c\u00e1c l\u1edbp ch\u1ea5t c\u00f3 trong l\u00e1 th\u00f4ng c\u1ee7a c\u00e2y kh\u00e1ng v\u00e0 m\u1eabn c\u1ea3m v\u1edbi S\u00e2u r\u00f3m th\u00f4ng b\u1eb1ng c\u00e1c dung d\u1ecbch kh\u00e1c nhau, \u0111\u1ecdc v\u00e0 xem s\u1ef1 kh\u00e1c nhau v\u1ec1 c\u00e1c l\u1edbp ch\u1ea5t c\u00f3 trong l\u00e1 c\u00e2y kh\u00e1ng v\u00e0 c\u00e2y m\u1eabn c\u1ea3m. K\u1ebft qu\u1ea3 quan s\u00e1t cho th\u1ea5y c\u01a1 b\u1ea3n kh\u00f4ng c\u00f3 s\u1ef1 kh\u00e1c nhau v\u1ec1 th\u00e0nh ph\u1ea7n c\u00e1c l\u1edbp ch\u1ea5t c\u00f3 trong m\u1eabu l\u00e1 th\u00f4ng. C\u1ea7n c\u01b0\u0301u ti\u0309 mi\u0309 h\u01a1n v\u00ea\u0300 tha\u0300nh ph\u00e2\u0300n va\u0300 ha\u0300m l\u01b0\u01a1\u0323ng tinh d\u00e2\u0300u co\u0301 trong ca\u0301c m\u00e2\u0303u c\u00e2\u0300n nghi\u00ean c\u01b0\u0301u, \u0111\u1ed3ng th\u1eddi c\u1ea7n ti\u1ebfn h\u00e0nh nu\u00f4i s\u00e2u non b\u1eb1ng l\u00e1 c\u00e1c c\u00e2y kh\u00e1ng v\u00e0 m\u1eabn c\u1ea3m \u0111\u1ec3 theo d\u00f5i qu\u00e1 tr\u00ecnh di chuy\u1ec3n, c\u0169ng nh\u01b0 c\u00e1c th\u00e0nh ph\u1ea7n t\u1eadp t\u00ednh sinh h\u1ecdc c\u1ee7a s\u00e2u non, ph\u00e2n t\u00edch s\u1ef1 kh\u00e1c nhau v\u1ec1 \u0111\u1eb7c \u0111i\u1ec3m h\u00ecnh th\u00e1i v\u00e0 c\u1ea5u t\u1ea1o l\u00e1 c\u1ee7a c\u00e1c c\u00e2y n\u00e0y \u0111\u1ec3 \u0111i \u0111\u1ebfn k\u1ebft lu\u1eadn cu\u1ed1i c\u00f9ng v\u1ec1 c\u01a1 ch\u1ebf kh\u00e1ng S\u00e2u r\u00f3m th\u00f4ng c\u1ee7a Th\u00f4ng nh\u1ef1a.<\/p>\n<h2>4. Thi\u1ebft l\u1eadp khu kh\u1ea3o nghi\u1ec7m h\u1eadu th\u1ebf<\/h2>\n<p>M\u1ed9t trong nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m kh\u00e1c bi\u1ec7t c\u1ee7a nh\u1eefng c\u00e2y kh\u00e1ng SRT l\u00e0 r\u1ea5t \u00edt qu\u1ea3, th\u1eadm ch\u00ed c\u00f3 nh\u1eefng c\u00e2y kh\u00f4ng c\u00f3 qu\u1ea3. Ch\u1ec9 c\u00f3 m\u1ed9t s\u1ed1 c\u00e2y l\u00e0 c\u00f3 kh\u1ea3 n\u0103ng thu \u0111\u01b0\u1ee3c qu\u1ea3 nh\u01b0 \u1edf Thanh H\u00f3a v\u00e0 Qu\u1ea3ng B\u00ecnh. V\u00ec v\u1eady kh\u00f4ng th\u1ec3 thu \u0111\u01b0\u1ee3c h\u1ea1t \u0111\u1ec3 gieo \u01b0\u01a1m cho t\u1ea5t c\u1ea3 c\u00e1c c\u00e2y m\u1eb9. \u0110\u1ebfn nay \u0111\u1ec1 t\u00e0i ch\u1ec9 thu \u0111\u01b0\u1ee3c h\u1ea1t gi\u1ed1ng c\u1ee7a 12 c\u00e2y m\u1eb9 t\u1ea1i 2 \u0111\u1ecba \u0111i\u1ec3m nghi\u00ean c\u1ee9u, c\u1ee5 th\u1ec3: TH02, TH03, TH07, TH08, TH09, TH10, TH11, TH13, QB04, QB11, QB12 v\u00e0 QB13. S\u1ed1 l\u01b0\u1ee3ng c\u00e2y con thu \u0111\u01b0\u1ee3c t\u1eeb h\u1ea1t c\u1ee7a nh\u1eefng c\u00e2y m\u1eb9 tuy\u1ec3n ch\u1ecdn l\u00e0 h\u01a1n 8.000 c\u00e2y con v\u00e0 \u0111\u00e3 tr\u1ed3ng 4ha khu kh\u1ea3o nghi\u1ec7m h\u1eadu th\u1ebf t\u1ea1i 4 \u0111\u1ecba \u0111i\u1ec3m th\u01b0\u1eddng xuy\u00ean x\u1ea3y ra d\u1ecbch S\u00e2u r\u00f3m th\u00f4ng trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y l\u00e0: Thanh H\u00f3a, Ngh\u1ec7 An, H\u00e0 T\u0129nh v\u00e0 Qu\u1ea3ng B\u00ecnh.<\/p>\n<h2>5. \u0110\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 b\u1ecb h\u1ea1i c\u1ee7a c\u00e1c d\u00f2ng, gia \u0111\u00ecnh trong v\u01b0\u1eddn v\u1eadt li\u1ec7u v\u00e0 khu kh\u1ea3o nghi\u1ec7m<\/h2>\n<h3>5.1. Nu\u00f4i SRT b\u1eb1ng l\u00e1 c\u1ee7a c\u00e1c d\u00f2ng, gia \u0111\u00ecnh Th\u00f4ng nh\u1ef1a<\/h3>\n<h4>5.1.1. Nu\u00f4i s\u00e2u t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng<\/h4>\n<p>K\u1ebft qu\u1ea3 nu\u00f4i s\u00e2u \u1edf c\u00e1c \u0111\u1ecba \u0111i\u1ec3m nghi\u00ean c\u1ee9u cho th\u1ea5y r\u1eb1ng \u1edf t\u1ea5t c\u1ea3 c\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m s\u00e2u non ch\u1ec9 s\u1ed1ng \u0111\u01b0\u1ee3c m\u1ed9t th\u1eddi gian r\u1ea5t ng\u1eafn (kho\u1ea3ng 1-3 ng\u00e0y). Sau khi \u0111\u01b0\u1ee3c th\u1ea3 tr\u00ean c\u00e1c c\u00e0nh k\u1ec3 c\u1ea3 nh\u1eefng c\u00e0nh c\u1ee7a c\u00e1c d\u00f2ng, gia \u0111\u00ecnh kh\u00e1ng v\u00e0 m\u1eabn c\u1ea3m s\u00e2u non ch\u1ec9 g\u1eb7m m\u1ed9t ch\u00fat \u0111\u1ea7u l\u00e1 sau \u0111\u00f3 b\u1ecf \u0111i v\u00e0 ch\u1ebft.<\/p>\n<h4>5.1.2. \u00a0Th\u00ed nghi\u1ec7m \u0111\u1ebb tr\u1ee9ng c\u1ee7a s\u00e2u tr\u01b0\u1edfng th\u00e0nh trong ph\u00f2ng th\u00ed nghi\u1ec7m<\/h4>\n<p>Theo d\u00f5i qu\u00e1 tr\u00ecnh \u0111\u1ebb tr\u1ee9ng c\u1ee7a s\u00e2u tr\u01b0\u1edfng th\u00e0nh sau 5 ng\u00e0y v\u0169 h\u00f3a cho th\u1ea5y h\u1ea7u nh\u01b0 kh\u00f4ng xu\u1ea5t hi\u1ec7n tr\u1ee9ng tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c l\u00e1 c\u1ee7a c\u00e1c d\u00f2ng, gia \u0111\u00ecnh Th\u00f4ng nh\u1ef1a \u1edf t\u1ea5t c\u1ea3 5 \u0111\u1ecba \u0111i\u1ec3m nghi\u00ean c\u1ee9u. S\u00e2u tr\u01b0\u1edfng th\u00e0nh sau khi v\u0169 h\u00f3a kh\u00f4ng t\u00ecm \u0111\u1ebfn c\u00e1c c\u00e0nh, l\u00e1 Th\u00f4ng nh\u1ef1a \u0111\u1eb7t trong l\u1ed3ng nu\u00f4i m\u00e0 ch\u1ec9 th\u1ea5y xu\u1ea5t hi\u1ec7n s\u00e2u tr\u01b0\u1edfng th\u00e0nh \u0111\u1eadu tr\u00ean l\u01b0\u1edbi c\u1ee7a l\u1ed3ng nu\u00f4i v\u00e0 \u0111\u1ebb tr\u1ee9ng tr\u00ean \u0111\u00f3.<\/p>\n<h4>5.1.3. Th\u00ed nghi\u1ec7m nu\u00f4i s\u00e2u non trong ph\u00f2ng th\u00ed nghi\u1ec7m<\/h4>\n<p>K\u1ebft qu\u1ea3 cho th\u1ea5y t\u1ec9 l\u1ec7 tr\u1ee9ng n\u1edf l\u00e0 kh\u00e1 cao (76%-96%), s\u1ed1 l\u01b0\u1ee3ng s\u00e2u non \u1edf t\u1ea5t c\u1ea3 c\u00e1c d\u00f2ng, gia \u0111\u00ecnh sau c\u00e1c kho\u1ea3ng th\u1eddi gian 4h, 8h v\u00e0 24h h\u1ea7u nh\u01b0 kh\u00f4ng c\u00f3 s\u1ef1 kh\u00e1c nhau. Tuy nhi\u00ean to\u00e0n b\u1ed9 s\u00e2u non \u0111\u1ec1u kh\u00f4ng \u0103n v\u00e0 sang \u0111\u1ebfn ng\u00e0y th\u1ee9 3 l\u00e0 ch\u1ebft h\u1ebft<\/p>\n<h3>5.2. Ph\u00e2n c\u1ea5p m\u1ee9c \u0111\u1ed9 b\u1ecb h\u1ea1i c\u1ee7a c\u00e1c d\u00f2ng, gia \u0111\u00ecnh Th\u00f4ng nh\u1ef1a<\/h3>\n<p>\u0110\u1ec1 t\u00e0i \u0111\u00e3 ti\u1ebfn h\u00e0nh \u0111i\u1ec1u tra ph\u00e2n c\u1ea5p m\u1ee9c \u0111\u1ed9 b\u1ecb S\u00e2u r\u00f3m th\u00f4ng h\u1ea1i c\u00e1c d\u00f2ng, gia \u0111\u00ecnh trong khu kh\u1ea3o nghi\u1ec7m h\u1eadu th\u1ebf v\u00e0 v\u01b0\u1eddn v\u1eadt li\u1ec7u 2 l\u1ea7n trong n\u0103m (th\u00e1ng 3 v\u00e0 th\u00e1ng 10), \u0111\u00e2y l\u00e0 nh\u1eefng th\u1eddi \u0111i\u1ec3m th\u01b0\u1eddng x\u1ea3y ra dich S\u00e2u r\u00f3m th\u00f4ng \u1edf c\u00e1c \u0111\u1ecba ph\u01b0\u01a1ng. Tuy nhi\u00ean \u1edf c\u1ea3 2 l\u1ea7n \u0111i\u1ec1u tra th\u00ec \u0111\u1ec1u kh\u00f4ng th\u1ea5y xu\u1ea5t hi\u1ec7n b\u1ea5t k\u1ef3 d\u1ea5u hi\u1ec7u ph\u00e1 h\u1ea1i n\u00e0o c\u1ee7a S\u00e2u r\u00f3m th\u00f4ng. M\u1ee9c \u0111\u1ed9 b\u1ecb h\u1ea1i c\u1ee7a t\u1ea5t c\u1ea3 c\u00e1c c\u00e2y \u0111i\u1ec1u tra \u0111\u1ec1u b\u1eb1ng 0 (c\u00e2y kh\u1ecfe m\u1ea1nh b\u00ecnh th\u01b0\u1eddng, t\u00e1n l\u00e1 kh\u00f4ng b\u1ecb h\u1ea1i).<\/p>\n<h3>5.3. Sinh tr\u01b0\u1edfng c\u1ee7a c\u00e1c d\u00f2ng, gia \u0111\u00ecnh Th\u00f4ng nh\u1ef1a<\/h3>\n<p>K\u1ebft qu\u1ea3 \u0111o \u0111\u1ebfm sinh tr\u01b0\u1edfng c\u1ee7a c\u00e1c d\u00f2ng, gia \u0111\u00ecnh Th\u00f4ng nh\u1ef1a trong v\u01b0\u1eddn v\u1eadt li\u1ec7u v\u00e0 khu kh\u1ea3o nghi\u1ec7m h\u1eadu th\u00ea \u1edf c\u00e1c \u0111\u1ecba \u0111i\u1ec3m nghi\u00ean c\u1ee9u sau 1 v\u00e0 2 tu\u1ed5i ch\u1ec9 ra r\u1eb1ng t\u1ec9 l\u1ec7 s\u1ed1ng c\u1ee7a c\u00e1c gia \u0111\u00ecnh trong c\u00e1c khu kh\u1ea3o nghi\u1ec7m h\u1eadu th\u1ebf l\u00e0 kh\u00e1 cao (Thanh H\u00f3a: 91,54; Ngh\u1ec7 An: 91,53%; H\u00e0 T\u0129nh: 85,38%; Qu\u1ea3ng B\u00ecnh: 90,83%). Sinh tr\u01b0\u1edfng v\u1ec1 chi\u1ec1u cao v\u00fat ng\u1ecdn v\u00e0 \u0111\u01b0\u1eddng k\u00ednh g\u1ed1c c\u1ee7a c\u00e1c gia \u0111\u00ecnh kh\u00f4ng kh\u00e1c nhau nhi\u1ec1u. Tuy nhi\u00ean c\u00f3 nh\u1eefng c\u00e1 th\u1ec3 sinh tr\u01b0\u1edfng kh\u00e1 t\u00f4t, v\u00ed d\u1ee5 \u1edf H\u00e0 T\u0129nh c\u00f3 c\u00e2y \u0111\u1ea1t H<sub>vn<\/sub>=98cm, D<sub>g<\/sub>=3,2cm (2 n\u0103m tu\u1ed5i), \u1edf Qu\u1ea3ng B\u00ecnh c\u00f3 c\u00e2y \u0111\u1ea1t H<sub>vn<\/sub>=70cm, D<sub>g<\/sub>=3,0cm (1 n\u0103m tu\u1ed5i).<\/p>\n<p>&nbsp;<\/p>\n<p>K\u1ebeT LU\u1eacN \u2013 \u0110\u1ec0 NGH\u1eca<\/p>\n<h2>1. K\u00ea\u0301t lu\u00e2\u0323n<\/h2>\n<ul>\n<li>Qua nghi\u00ean c\u1ee9u ph\u00e2n t\u00edch sinh h\u00f3a th\u00e0nh th\u00e0nh c\u00e1c h\u1ee3p ch\u1ea5t c\u00f3 trong l\u00e1 c\u1ee7a c\u00e1c c\u00e2y tr\u1ed9i Th\u00f4ng nh\u1ef1a tuy\u1ec3n ch\u1ecdn kh\u00e1ng v\u00e0 m\u1eabn c\u1ea3m v\u1edbi S\u00e2u r\u00f3m th\u00f4ng, k\u1ebft h\u1ee3p v\u1edbi k\u1ebft qu\u1ea3 nu\u00f4i s\u00e2u trong ph\u00f2ng th\u00ed nghi\u1ec7m v\u00e0 ngo\u00e0i hi\u1ec7n tr\u01b0\u1eddng, \u0111\u1ec1 t\u00e0i \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c 36 c\u00e2y tr\u1ed9i t\u1ea1i 4 \u0111\u1ecba \u0111i\u1ec3m nghi\u00ean c\u1ee9u c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng S\u00e2u r\u00f3m th\u00f4ng cao, c\u1ee5 th\u1ec3: Thanh H\u00f3a (8 c\u00e2y); Ngh\u1ec7 An (9 c\u00e2y); H\u00e0 T\u0129nh (12 c\u00e2y); Qu\u1ea3ng B\u00ecnh (7 c\u00e2y).<\/li>\n<li>36 c\u00e2y tr\u1ed9i c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng S\u00e2u r\u00f3m th\u00f4ng cao l\u00e0 nh\u1eefng c\u00e2y c\u00f3 h\u00e0m l\u01b0\u1ee3ng c\u00e1c h\u1ee3p ch\u1ea5t thu\u1ed9c nh\u00f3m terpene cao, \u0111\u1ed3ng th\u1eddi nh\u1eefng c\u00e2y n\u00e0y c\u00f3 s\u1ea3n l\u01b0\u1ee3ng nh\u1ef1a cao g\u1ea5p 200%-300% l\u1ea7n so v\u1edbi nh\u1eefng c\u00e2y m\u1eabn c\u1ea3m.<\/li>\n<li>B\u01b0\u1edbc \u0111\u1ea7u x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c c\u01a1 ch\u1ebf kh\u00e1ng SRT c\u1ee7a Th\u00f4ng nh\u1ef1a:\n<ul>\n<li><b>C\u01a1 ch\u1ebf kh\u00f4ng \u01b0a th\u00edch<\/b>: S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 \u0111\u1eb7c \u0111i\u1ec3m h\u00ecnh th\u00e1i v\u00e0 c\u1ea5u t\u1ea1o l\u00e1 gi\u1eefa m\u1eabu l\u00e1 c\u00e1c c\u00e2y kh\u00e1ng v\u00e0 m\u1eabn c\u1ea3m: L\u00e1 c\u1ee7a c\u00e2y kh\u00e1ng s\u00e2u c\u00f3 t\u1ea7ng cutin, t\u1ea7ng bi\u1ec3u b\u00ec v\u00e0 t\u1ea7ng h\u1ea1 b\u00ec d\u1ea7y, t\u1ea7ng nhu m\u00f4 \u0111\u1ed3ng h\u00f3a m\u1ecfng n\u00ean l\u00e1 c\u00e2y r\u1ea5t c\u1ee9ng v\u00e0 v\u00ec th\u1ebf s\u00e2u non kh\u00f4ng th\u00edch \u0103n.<\/li>\n<li><b>C\u01a1 ch\u1ebf<\/b><b> kh\u00e1ng kh\u00e1ng sinh<\/b>:\n<ul>\n<li>C\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t r\u00f5 r\u1ec7t v\u1ec1 th\u00e0nh ph\u1ea7n tinh d\u1ea7u c\u00f3 trong m\u1eabu l\u00e1 Th\u00f4ng nh\u1ef1a. M\u1ed9t s\u1ed1 nh\u00f3m ch\u1ea5t ch\u1ec9 th\u1ea5y xu\u1ea5t hi\u1ec7n trong c\u00e1c m\u1eabu l\u00e1 c\u00e2y m\u1eabn c\u1ea3m, nh\u01b0ng kh\u00f4ng th\u1ea5y xu\u1ea5t hi\u1ec7n trong m\u1eabu l\u00e1 c\u00e1c c\u00e2y kh\u00e1ng.<\/li>\n<li>H\u00e0m l\u01b0\u1ee3ng m\u1ed9t s\u1ed1 th\u00e0nh ph\u1ea7n l\u1edbp ch\u1ea5t thu\u1ed9c nh\u00f3m terpene c\u00f3 trong l\u00e1 c\u1ee7a nh\u1eefng c\u00e2y kh\u00e1ng cao h\u01a1n so v\u1edbi l\u00e1 c\u00e2y m\u1eabn c\u1ea3m v\u00e0 kh\u00f4ng th\u1ea5y xu\u1ea5t hi\u1ec7n trong l\u00e1 c\u00e2y m\u1eabn c\u1ea3m.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>2. \u0110\u1ec1 ngh\u1ecb<\/p>\n<ul>\n<li>Ti\u1ebfp t\u1ee5c ch\u0103m s\u00f3c, theo d\u00f5i v\u00e0 \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 b\u1ecb h\u1ea1i c\u1ee7a c\u00e1c d\u00f2ng, gia \u0111\u00ecnh trong v\u01b0\u1eddn v\u1eadt li\u1ec7u v\u00e0 khu kh\u1ea3o nghi\u1ec7m; ti\u1ebfp t\u1ee5c tuy\u1ec3n ch\u1ecdn th\u00eam c\u00e1c c\u00e2y tr\u1ed9i Th\u00f4ng nh\u1ef1a kh\u00e1ng S\u00e2u r\u00f3m th\u00f4ng v\u00e0 s\u1ea3n l\u01b0\u1ee3ng nh\u1ef1a cao t\u1ea1i Thanh H\u00f3a, Ngh\u1ec7 An v\u00e0 H\u00e0 T\u0129nh.<\/li>\n<li>Ti\u1ebfp t\u1ee5c x\u00e1c \u0111\u1ecbnh c\u01a1 ch\u1ebf kh\u00e1ng S\u00e2u r\u00f3m th\u00f4ng c\u1ee7a Th\u00f4ng nh\u1ef1a th\u00f4ng qua x\u00e1c \u0111\u1ecbnh th\u00e0nh ph\u1ea7n vi sinh v\u1eadt n\u1ed9i sinh v\u00e0 th\u00e0nh ph\u1ea7n c\u00e1c ch\u1ea5t d\u1ec5 bay h\u01a1i c\u00f3 trong l\u00e1<\/li>\n<li>Ti\u1ebfp t\u1ee5c x\u00e2y d\u1ef1ng khu kh\u1ea3o nghi\u1ec7m h\u1eadu th\u1ebf c\u1ee7a c\u00e1c gia \u0111\u00ecnh v\u00e0 c\u00e1c t\u1ed5 h\u1ee3p lai gi\u1eefa nh\u1eefng c\u00e2y tr\u1ed9i Th\u00f4ng nh\u1ef1a kh\u00e1ng S\u00e2u r\u00f3m th\u00f4ng.<\/li>\n<li>Ti\u1ebfp t\u1ee5c nghi\u00ean c\u1ee9u th\u00eam v\u1ec1 ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p c\u00e0nh \u0111\u1ed1i v\u1edbi Th\u00f4ng nh\u1ef1a nh\u1eb1m t\u1ea1o c\u00e2y con ph\u1ee5c v\u1ee5 x\u00e2y d\u1ef1ng v\u01b0\u1eddn t\u1eadp h\u1ee3p \u0111\u1ea7u d\u00f2ng.<\/li>\n<li>Ti\u1ebfp t\u1ee5c x\u00e2y d\u1ef1ng v\u01b0\u1eddn t\u1eadp h\u1ee3p \u0111\u1ea7u d\u00f2ng t\u1eeb c\u00e2y con nh\u00e2n gi\u1ed1ng sinh d\u01b0\u1ee1ng ph\u1ee5c v\u1ee5 c\u00f4ng t\u00e1c gi\u1ed1ng sau n\u00e0y.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>T\u00c0I LI\u1ec6U THAM KH\u1ea2O<\/p>\n<h2>1. T\u00e0i li\u1ec7u tham kh\u1ea3o ti\u1ebfng Vi\u1ec7t<\/h2>\n<ul>\n<li>L\u01b0u Minh C\u00fac, V\u0169 \u0110\u1ee9c Quang, Tr\u1ea7n \u0110\u00ecnh Long (2008). Di truy\u1ec1n t\u00ednh kh\u00e1ng b\u1ec7nh \u0111\u1ed1m l\u00e1 mu\u1ed9n (Late leaf spot) tr\u00ean c\u00e2y l\u1ea1c (<i>Arachis hypogaea<\/i>). T\u1ea1p ch\u00ed N\u00f4ng nghi\u1ec7p v\u00e0 Ph\u00e1t tri\u1ec3n N\u00f4ng th\u00f4n, s\u1ed1 6 &#8211; 2008, tr 7-11.<\/li>\n<li>Nguy\u1ec5n Quang D\u0169ng, Ph\u1ea1m Quang Thu (2008). B\u01b0\u1edbc \u0111\u1ea7u \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng kh\u00e1ng n\u1ea5m <i>Quambalaria eucalypti<\/i> g\u00e2y b\u1ec7nh b\u1ea1ch \u0111\u00e0n qua kh\u1ea3o nghi\u1ec7m lo\u00e0i\/xu\u1ea5t x\u1ee9 t\u1ea1i \u0110\u1ea1i L\u1ea3i &#8211; V\u0129nh Ph\u00fac. T\u1ea1p ch\u00ed Khoa h\u1ecdc L\u00e2m nghi\u1ec7p, s\u1ed1 1 &#8211; 2008, tr 548.<\/li>\n<li>Nguy\u1ec5n Ho\u00e0ng Ngh\u0129a, Ph\u1ea1m Quang Thu v\u00e0 Nguy\u1ec5n V\u0103n Chi\u1ebfn (2007). B\u00e1o c\u00e1o c\u00f4ng nh\u1eadn gi\u1ed1ng c\u00e1c B\u1ea1ch \u0111\u00e0n Keo lai v\u00e0 Keo l\u00e1 tr\u00e0m ch\u1ed1ng ch\u1ecbu b\u1ec7nh c\u00f3 n\u0103ng su\u1ea5t cao<\/li>\n<li>Nguy\u1ec5n Th\u1ebf Nh\u00e3, Tr\u1ea7n V\u0103n M\u00e3o (2004). B\u1ea3o v\u1ec7 th\u1ef1c v\u1eadt. NXB N\u00f4ng Nghi\u1ec7p H\u00e0 N\u1ed9i.<\/li>\n<li>Agostinho (1994). 5-Methylcoumarins from Toona ciliata stem bark and their chemotaxonomic significance.<\/li>\n<li>Cunningham S. A. and Floy R. B. (1999). Insect Reistance and Silviculture Control of Shoot bores, <i>Hypsip<\/i><i>y<\/i><i>la<\/i> <i>robusta<\/i>, Feeding on Species on Meliaceae in the Asia-Pacific Region, Annual Report, ACIAR project FST\/97\/24.<\/li>\n<li>Michael R. W., Karen M. C., Francois L. and Timothy D. P. (2002). Mechanisms and Development of Resistance in Trees to Insects. Kluwer Academic Publicshers. P.O. Box 17, 3300 AA Dordrencht, The Nertherlands.<\/li>\n<li>Kubo and Klocke (1986). Antifeedant activities of terpenoids isolated from tropical Rutales.<\/li>\n<\/ul>\n<h2>2. T\u00e0i li\u1ec7u tham kh\u1ea3o ti\u1ebfng Anh<\/h2>\n","protected":false},"excerpt":{"rendered":"<p>\u0110\u00e0o Ng\u1ecdc Quang \u0110\u1eb6T V\u1ea4N \u0110\u1ec0 T\u00e0i nguy\u00ean r\u1eebng ng\u00e0y c\u00e0ng b\u1ecb suy gi\u1ea3m c\u1ea3 v\u1ec1 s\u1ed1 l\u01b0\u1ee3ng v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng do nhu c\u1ea7u v\u1ec1 l\u00e2m s\u1ea3n v\u00e0 \u0111\u1ea5t canh t\u00e1c c\u1ee7a con ng\u01b0\u1eddi ng\u00e0y c\u00e0ng cao, k\u00e9o theo h\u00e0ng lo\u1ea1t c\u00e1c \u1ea3nh h\u01b0\u1edfng x\u1ea5u v\u1ec1 m\u00f4i tr\u01b0\u1eddng sinh th\u00e1i. C\u00e2y th\u00f4ng la\u0300 m\u00f4\u0323t trong [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[13,72],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/14669"}],"collection":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=14669"}],"version-history":[{"count":5,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/14669\/revisions"}],"predecessor-version":[{"id":19181,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/14669\/revisions\/19181"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=14669"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=14669"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=14669"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}