{"id":14183,"date":"2015-02-02T09:37:19","date_gmt":"2015-02-02T02:37:19","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/?p=14183"},"modified":"2015-02-02T09:40:55","modified_gmt":"2015-02-02T02:40:55","slug":"vien-khoa-hoc-lam-nghiep-viet-nam-to-chuc-hoi-dong-khoa-hoc-cong-nghe-nghiem-thu-tong-ket-de-tai-nghien-cuu-nhan-nhanh-mot-so-giong-keo-va-bach-dan-moi-bang-cong-nghe-te-bao-thuc-vat","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/vien-khoa-hoc-lam-nghiep-viet-nam-to-chuc-hoi-dong-khoa-hoc-cong-nghe-nghiem-thu-tong-ket-de-tai-nghien-cuu-nhan-nhanh-mot-so-giong-keo-va-bach-dan-moi-bang-cong-nghe-te-bao-thuc-vat\/","title":{"rendered":"Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam t\u1ed5 ch\u1ee9c H\u1ed9i \u0111\u1ed3ng Khoa h\u1ecdc C\u00f4ng ngh\u1ec7 nghi\u1ec7m thu t\u1ed5ng k\u1ebft \u0111\u1ec1 t\u00e0i: Nghi\u00ean c\u1ee9u nh\u00e2n nhanh m\u1ed9t s\u1ed1 gi\u1ed1ng Keo v\u00e0 B\u1ea1ch \u0111\u00e0n m\u1edbi b\u1eb1ng c\u00f4ng ngh\u1ec7 t\u1ebf b\u00e0o th\u1ef1c v\u1eadt."},"content":{"rendered":"

Ng\u00e0y 27\/ 01 \/2015, Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam \u0111\u00e3 th\u00e0nh l\u1eadp H\u1ed9i \u0111\u1ed3ng Khoa h\u1ecdc C\u00f4ng ngh\u1ec7 c\u1ea5p c\u01a1 s\u1edf, nghi\u1ec7m thu t\u1ed5ng k\u1ebft \u0111\u1ec1 t\u00e0i thu\u1ed9c \u201cCh\u01b0\u01a1ng tr\u00ecnh tr\u1ecdng\u00a0 \u0111i\u1ec3m ph\u00e1t tri\u1ec3n v\u00e0 \u1ee9ng d\u1ee5ng c\u00f4ng ngh\u1ec7 sinh h\u1ecdc trong l\u0129nh v\u1ef1c N\u00f4ng nghi\u1ec7p v\u00e0 PTNT\u201d.<\/p>\n

T\u00ean \u0111\u1ec1 t\u00e0i: Nghi\u00ean c\u1ee9u nh\u00e2n nhanh m\u1ed9t s\u1ed1 gi\u1ed1ng Keo v\u00e0 B\u1ea1ch \u0111\u00e0n m\u1edbi b\u1eb1ng c\u00f4ng ngh\u1ec7 t\u1ebf b\u00e0o th\u1ef1c v\u1eadt.<\/p>\n

Ch\u1ee7 nhi\u1ec7m: ThS. C\u1ea5n Th\u1ecb Lan<\/p>\n

\u0110\u01a1n v\u1ecb th\u1ef1c hi\u1ec7n: Vi\u1ec7n Nghi\u00ean c\u1ee9u Gi\u1ed1ng v\u00e0 C\u00f4ng ngh\u1ec7 sinh h\u1ecdc L\u00e2m nghi\u1ec7p.<\/p>\n

\"15-01-271\"<\/a><\/p>\n

M\u1ed9t s\u1ed1 k\u1ebft qu\u1ea3 \u0111\u00e3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u1ee7a \u0111\u1ec1 t\u00e0i:<\/strong><\/p>\n

– \u0110\u1ec1 t\u00e0i \u0111\u00e3 nh\u00e2n<\/b> gi\u1ed1ng b\u1eb1ng nu\u00f4i c\u1ea5y m\u00f4 th\u00e0nh c\u00f4ng cho c\u00e1c gi\u1ed1ng Keo (Keo lai: gi\u1ed1ng AH1, AH7, TB1, TB11; Keo l\u00e1 tr\u00e0m: gi\u1ed1ng AA1, AA9, Clt26, Clt7, Clt18, Clt57)<\/b><\/b><\/p>\n

Trong \u0111\u00f3, \u0111\u1ec1 t\u00e0i \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c:<\/p>\n

+ S\u1eed d\u1ee5ng HgCl2<\/sub> n\u1ed3ng \u0111\u1ed9 0,1%<\/i> v\u1edbi th\u1eddi gian 5 ph\u00fat l\u00e0 ph\u01b0\u01a1ng ph\u00e1p kh\u1eed tr\u00f9ng t\u1ed1t nh\u1ea5t<\/i> cho c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng Keo lai: gi\u1ed1ng AH1, AH7, TB1, TB11 (t\u1ef7 l\u1ec7 m\u1eabu s\u1ed1ng l\u00e0 84,17%, t\u1ef7 l\u1ec7 m\u1eabu nhi\u1ec5m l\u00e0 38,33% v\u00e0 t\u1ef7 l\u1ec7 n\u1ea3y ch\u1ed3i h\u1eefu hi\u1ec7u \u0111\u1ea1t t\u1edbi 37,54%) v\u00e0 Keo l\u00e1 tr\u00e0m: gi\u1ed1ng AA1, AA9, Clt7, Clt 18, Clt 26, Clt 57 (t\u1ef7 l\u1ec7 m\u1eabu s\u1ed1ng l\u00e0 85,74%, t\u1ef7 l\u1ec7 m\u1eabu nhi\u1ec5m l\u00e0 45,93% v\u00e0 t\u1ef7 l\u1ec7 n\u1ea3y ch\u1ed3i h\u1eefu hi\u1ec7u \u0111\u1ea1t t\u1edbi 41,78%.). K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u c\u1ee7a ch\u00fang t\u00f4i c\u0169ng cho th\u1ea5y, m\u1eb7c d\u00f9 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn s\u1eed d\u1ee5ng l\u00e0 \u0111\u1ed3ng nh\u1ea5t (ch\u1ed3i b\u00e1nh t\u1ebb c\u1ee7a c\u00e2y v\u1eadt li\u1ec7u g\u1ed1c) song hi\u1ec7u qu\u1ea3 kh\u1eed tr\u00f9ng c\u1ee7a c\u00e1c gi\u1ed1ng Keo lai c\u0169ng nh\u01b0 c\u00e1c gi\u1ed1ng Keo l\u00e1 tr\u00e0m trong c\u00f9ng m\u1ed9t c\u00f4ng th\u1ee9c kh\u1eed tr\u00f9ng t\u1ed1t nh\u1ea5t c\u0169ng c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t r\u00f5 r\u1ec7t. Trong 4 gi\u1ed1ng Keo lai l\u00e0 AH1, AH7, TB1, TB11, hi\u1ec7u qu\u1ea3 kh\u1eed tr\u00f9ng t\u1ed1t nh\u1ea5t \u1edf gi\u1ed1ng TB11 v\u1edbi t\u1ef7 l\u1ec7 n\u1ea3y ch\u1ed3i h\u1eefu hi\u1ec7u \u0111\u1ea1t 50,65%, trong khi t\u1ef7 l\u1ec7 nhi\u1ec5m ch\u1ec9 l\u00e0 37,78%. Keo l\u00e1 tr\u00e0m gi\u1ed1ng AA9, Clt 18, Clt57 c\u00f3 hi\u1ec7u qu\u1ea3 kh\u1eed tr\u00f9ng r\u1ea5t t\u1ed1t v\u1edbi t\u1ef7 l\u1ec7 m\u1eabu n\u1ea3y ch\u1ed3i h\u1eefu hi\u1ec7u tr\u00ean 45%, t\u1ef7 l\u1ec7 nhi\u1ec5m 42,22 – 46,67%. C\u00e1c gi\u1ed1ng Clt7, AA1, Clt26 c\u00f3 t\u1ef7 l\u1ec7 m\u1eabu n\u1ea3y ch\u1ed3i h\u1eefu hi\u1ec7u t\u01b0\u01a1ng \u0111\u1ed1i cao (\u0111\u1ea1t 34,57 – 42,67%).<\/p>\n

+ M\u00f4i tr\u01b0\u1eddng MS l\u00e0 m\u00f4i tr\u01b0\u1eddng t\u00e1i sinh ch\u1ed3i ban \u0111\u1ea7u<\/i> cho Keo lai (gi\u1ed1ng AH1, AH7, TB1, TB11) v\u00e0 Keo l\u00e1 tr\u00e0m (gi\u1ed1ng AA1, AA9, Clt7, Clt18, Clt26, Clt57). Ch\u1ed3i Keo lai t\u00e1i sinh trong m\u00f4i tr\u01b0\u1eddng MS thu \u0111\u01b0\u1ee3c 3,80 ch\u1ed3i\/c\u1ee5m; chi\u1ec1u d\u00e0i ch\u1ed3i \u0111\u1ea1t 2,24 cm; Keo l\u00e1 tr\u00e0m \u0111\u1ea1t 3,47 ch\u1ed3i\/c\u1ee5m; chi\u1ec1u d\u00e0i ch\u1ed3i 2,03 cm.<\/p>\n

+ M\u00f4i tr\u01b0\u1eddng nh\u00e2n nhanh ch\u1ed3i<\/i> cho c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng Keo lai (gi\u1ed1ng AH1, AH7, TB1, TB11) l\u00e0 MS* + 1,5 mg\/l BAP<\/i> (\u0111\u1ea1t 5,72 <\/b>ch\u1ed3i\/c\u1ee5m v\u00e0 h\u1ec7 s\u1ed1 nh\u00e2n ch\u1ed3i 2,97 l\u1ea7n, chi\u1ec1u cao ch\u1ed3i l\u00e0 2,84 cm, ch\u1ed3i sinh tr\u01b0\u1edfng t\u1ed1t)<\/p>\n

M\u00f4i tr\u01b0\u1eddng nh\u00e2n nhanh ch\u1ed3i cho Keo l\u00e1 tr\u00e0m (gi\u1ed1ng AA1, AA9, Clt26, Clt7, Clt18, Clt57) l\u00e0 MS* + 1,0 mg\/l BAP<\/i> <\/b>(thu \u0111\u01b0\u1ee3c 5,53 ch\u1ed3i\/c\u1ee5m v\u00e0 h\u1ec7 s\u1ed1 nh\u00e2n ch\u1ed3i l\u00e0 2,35 l\u1ea7n, chi\u1ec1u cao ch\u1ed3i \u0111\u1ea1t 2,27 cm, ch\u1ed3i sinh tr\u01b0\u1edfng t\u1ed1t).<\/p>\n

Hi\u1ec7u qu\u1ea3 nh\u00e2n nhanh gi\u1ed1ng gi\u1eefa c\u00e1c gi\u1ed1ng Keo nghi\u00ean c\u1ee9u c\u0169ng c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t r\u00f5 r\u00e0ng. Trong nh\u00f3m Keo lai, gi\u1ed1ng TB11 \u0111\u1ea1t hi\u1ec7u qu\u1ea3 nh\u00e2n ch\u1ed3i cao nh\u1ea5t v\u1edbi 6,60 ch\u1ed3i\/c\u1ee5m, chi\u1ec1u cao ch\u1ed3i 2,93 cm. Gi\u1ed1ng Keo l\u00e1 tr\u00e0m Clt7 c\u00f3 hi\u1ec7u qu\u1ea3 nh\u00e2n ch\u1ed3i cao nh\u1ea5t v\u1edbi 6,26 ch\u1ed3i\/c\u1ee5m, chi\u1ec1u cao ch\u1ed3i 2,52 cm.<\/p>\n

+ M\u00f4i tr\u01b0\u1eddng n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng ch\u1ed3i<\/i> ph\u1ee5c v\u1ee5 giai \u0111o\u1ea1n ra r\u1ec5 in vitro<\/i><\/p>\n

\u25aa <\/i>Keo lai AH1, AH7, TB1, TB11: MS* + 1,5 mg\/l BAP + 0,25 mg\/l NAA. <\/b><\/i>(t\u1ef7 l\u1ec7 ch\u1ed3i h\u1eefu hi\u1ec7u cao nh\u1ea5t 70,06%, h\u1ec7 s\u1ed1 nh\u00e2n ch\u1ed3i 2,73 l\u1ea7n v\u00e0 5,30 ch\u1ed3i\/c\u1ee5m)<\/i><\/p>\n

\u25aa <\/i>Keo l\u00e1 tr\u00e0m AA1, AA9, Clt26, Clt7, Clt18, Clt57: MS* + 1,0 mg\/l BAP + 0,50 mg\/l NAA.<\/i>(t\u1ef7 l\u1ec7 ch\u1ed3i h\u1eefu hi\u1ec7u \u0111\u1ea1t 66,58%, c\u00f3 4,84 ch\u1ed3i\/c\u1ee5m, h\u1ec7 s\u1ed1 nh\u00e2n ch\u1ed3i l\u00e0 2,07 l\u1ea7n).<\/p>\n

Hi\u1ec7u qu\u1ea3 n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng ch\u1ed3i \u1edf c\u00e1c gi\u1ed1ng l\u00e0 r\u1ea5t kh\u00e1c nhau. Keo lai gi\u1ed1ng TB11 c\u00f3 th\u1ec3 cho 6,39 ch\u1ed3i\/c\u1ee5m v\u00e0 78,07% ch\u1ed3i h\u1eefu hi\u1ec7u trong khi gi\u1ed1ng AH1 ch\u1ec9 cho 4,53 ch\u1ed3i\/c\u1ee5m v\u00e0 60,24% ch\u1ed3i h\u1eefu hi\u1ec7u. T\u01b0\u01a1ng t\u1ef1 v\u1edbi Keo l\u00e1 tr\u00e0m, trong khi t\u1ef7 l\u1ec7 ch\u1ed3i h\u1eefu hi\u1ec7u c\u1ee7a gi\u1ed1ng AA1 ch\u1ec9 \u0111\u1ea1t 50,22% th\u00ec gi\u1ed1ng Clt18 l\u1ea1i c\u00f3 t\u1edbi 76,56% ch\u1ed3i h\u1eefu hi\u1ec7u.<\/p>\n

+ M\u00f4i tr\u01b0\u1eddng ra r\u1ec5<\/p>\n

\u25aa <\/i>Keo lai gi\u1ed1ng AH1, AH7, TB1, TB11: 1\/2 MS* + 1,5 mg\/l IBA <\/i>(t\u1ef7 l\u1ec7 ra r\u1ec5 \u0111\u1ea1t 97,66%, c\u00f3 2,86 r\u1ec5\/c\u00e2y v\u00e0 chi\u1ec1u d\u00e0i r\u1ec5 l\u00e0 1,52 cm). Gi\u1ed1ng TB1 v\u00e0 TB11 \u0111\u01b0\u1ee3c nu\u00f4i c\u1ea5y trong m\u00f4i tr\u01b0\u1eddng ra r\u1ec5 ph\u00f9 h\u1ee3p c\u00f3 th\u1ec3 cho t\u1ef7 l\u1ec7 ra r\u1ec5 t\u1edbi 100%.<\/p>\n

\u25aa <\/i>Keo l\u00e1 tr\u00e0m AA1, AA9, Clt26, Clt7, Clt18, Clt57: 1\/2 MS* + 2,0 mg\/l IBA.<\/i>(t\u1ef7 l\u1ec7 ra r\u1ec5 \u0111\u1ea1t 93,04%, s\u1ed1 r\u1ec5\/c\u00e2y \u0111\u1ea1t 2,31 v\u00e0 chi\u1ec1u d\u00e0i r\u1ec5 1,20 cm). M\u1eb7c d\u00f9 v\u1edbi c\u00e1c gi\u1ed1ng Keo l\u00e1 tr\u00e0m \u0111\u00e3 nghi\u00ean c\u1ee9u \u0111\u1ec1u cho th\u1ea5y m\u00f4i tr\u01b0\u1eddng 1\/2MS* b\u1ed5 sung 2,0 mg\/l IBA l\u00e0 m\u00f4i tr\u01b0\u1eddng ra r\u1ec5 t\u1ed1t, tuy nhi\u00ean x\u00e9t c\u1ee5 th\u1ec3 tr\u00ean c\u00e1c gi\u1ed1ng kh\u00e1c nhau v\u1eabn c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 hi\u1ec7u qu\u1ea3 ra r\u1ec5.<\/p>\n

+ B\u00ean c\u1ea1nh ph\u01b0\u01a1ng ph\u00e1p t\u1ea1o r\u1ec5 trong b\u00ecnh in vitro<\/i>, c\u00e1c ch\u1ed3i non in vitro<\/i> Keo lai v\u00e0 Keo l\u00e1 tr\u00e0m c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u1ea1o r\u1ec5 b\u1eb1ng c\u00e1ch ch\u1ea5m thu\u1ed1c b\u1ed9t TTG c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb IBA v\u1edbi n\u1ed3ng \u0111\u1ed9 1,0% v\u1edbi t\u1ef7 l\u1ec7 ch\u1ed3i ra r\u1ec5 t\u01b0\u01a1ng \u0111\u1ed1i cao (Keo lai 86,33% v\u00e0 Keo l\u00e1 tr\u00e0m 79,65%). Hi\u1ec7u qu\u1ea3 t\u1ea1o r\u1ec5 b\u1eb1ng ch\u1ea5m thu\u1ed1c b\u1ed9t t\u1eeb ch\u1ed3i non in vitro<\/i> c\u1ee7a c\u00e1c gi\u1ed1ng keo c\u0169ng ho\u00e0n to\u00e0n kh\u00e1c nhau. Do v\u1eady, vi\u1ec7c x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c n\u1ed3ng \u0111\u1ed9 thu\u1ed1c b\u1ed9t ph\u00f9 h\u1ee3p cho c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 r\u1ea5t c\u00f3 \u00fd ngh\u0129a, qua \u0111\u00f3 ch\u00fang ta c\u00f3 th\u1ec3 chuy\u1ec3n giao c\u0169ng nh\u01b0 khuy\u1ebfn c\u00e1o c\u00e1c \u0111\u01a1n v\u1ecb s\u1ea3n xu\u1ea5t s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p ra r\u1ec5 ch\u1ed3i non in vitro<\/i> b\u1eb1ng ch\u1ea5m thu\u1ed1c b\u1ed9t (TTG). B\u1edfi ph\u01b0\u01a1ng ph\u00e1p n\u00e0y t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01a1n gi\u1ea3n, d\u1ec5 th\u1ef1c hi\u1ec7n v\u00e0 kh\u00e1 ti\u1ebft ki\u1ec7m (nh\u00e2n l\u1ef1c v\u00e0 chi ph\u00ed).<\/p>\n

+ C\u00e2y con Keo lai AH1, AH7, TB1, TB11 v\u00e0 Keo l\u00e1 tr\u00e0m AA1, AA9, Clt26, Clt7, Clt18, Clt57 \u0111\u01b0\u1ee3c hu\u1ea5n luy\u1ec7n trong th\u1eddi gian 6 – 10 ng\u00e0y c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng cao 87,32% – 92,68%. Keo lai gi\u1ed1ng TB11 c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng v\u00e0 sinh tr\u01b0\u1edfng v\u1ec1 chi\u1ec1u cao \u0111\u1ea1t gi\u00e1 tr\u1ecb cao nh\u1ea5t (96,05% v\u00e0 4,50 cm), trong khi gi\u1ed1ng AH1 ch\u1ec9 \u0111\u1ea1t 89,12% c\u00e2y s\u1ed1ng, chi\u1ec1u cao trung b\u00ecnh c\u00e2y l\u00e0 3,81 cm. V\u1edbi Keo l\u00e1 tr\u00e0m gi\u1ed1ng Clt7: t\u1ef7 l\u1ec7 s\u1ed1ng v\u00e0 chi\u1ec1u cao \u0111\u1ea1t cao nh\u1ea5t trong nh\u00f3m v\u1edbi 92,21% c\u00e2y s\u1ed1ng, c\u00e2y cao 4,15 cm; trong khi gi\u1ed1ng AA1 l\u1ea1i c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng l\u00e0 78,65%, chi\u1ec1u cao c\u00e2y 3,59 cm.<\/p>\n

+ T\u1ef7 l\u1ec7 s\u1ed1ng v\u00e0 chi\u1ec1u cao c\u00e2y con \u0111\u1ea1t gi\u00e1 tr\u1ecb t\u1ed1t nh\u1ea5t khi c\u00e2y con \u0111\u01b0\u1ee3c c\u1ea5y v\u00e0o lo\u1ea1i gi\u00e1 th\u1ec3 c\u00f3 70% \u0111\u1ea5t m\u1ea7u + 20% than tr\u1ea5u + 10% ph\u00e2n chu\u1ed3ng hoai. V\u1edbi lo\u1ea1i gi\u00e1 th\u1ec3 n\u00e0y, t\u1ef7 l\u1ec7 s\u1ed1ng v\u00e0 chi\u1ec1u cao c\u1ee7a c\u00e1c gi\u1ed1ng Keo lai l\u1ea7n l\u01b0\u1ee3t l\u00e0 90,06% v\u00e0 11,48 cm; v\u1edbi c\u00e1c gi\u1ed1ng Keo l\u00e1 tr\u00e0m \u0111\u1ea1t 88,16% v\u00e0 10,51 cm.<\/p>\n

\"15-01-272\"<\/a><\/p>\n

– <\/b>\u0110\u1ec1 t\u00e0i nh\u00e2n gi\u1ed1ng b\u1eb1ng nu\u00f4i c\u1ea5y m\u00f4 th\u00e0nh c\u00f4ng cho B\u1ea1ch \u0111\u00e0n (B\u1ea1ch \u0111\u00e0n Caman: <\/b>gi\u1ed1ng C55, C159, BV22; B\u1ea1ch \u0111\u00e0n lai: gi\u1ed1ng UP35, UP58, UP59, UP72, UP99 v\u00e0 B\u1ea1ch \u0111\u00e0n Uro: gi\u1ed1ng 89.1, 89.2)<\/b><\/b><\/p>\n

+ Ph\u01b0\u01a1ng ph\u00e1p kh\u1eed tr\u00f9ng t\u1ed1t nh\u1ea5t<\/i><\/p>\n

\u25aa B\u1ea1ch \u0111\u00e0n Ur\u00f4 89.1 v\u00e0 89.2: HgCl2<\/sub> 0,1% trong v\u00f2ng 5 ph\u00fat (t\u1ef7 l\u1ec7 m\u1eabu s\u1ed1ng l\u00e0 78,33%, t\u1ef7 l\u1ec7 m\u1eabu nhi\u1ec5m l\u00e0 40,00% v\u00e0 t\u1ef7 l\u1ec7 n\u1ea3y ch\u1ed3i h\u1eefu hi\u1ec7u \u0111\u1ea1t t\u1edbi 29,33%). K\u1ebft qu\u1ea3 kh\u1eed tr\u00f9ng \u1edf B\u1ea1ch \u0111\u00e0n Ur\u00f4 891 cho t\u1ef7 l\u1ec7 n\u1ea3y ch\u1ed3i h\u1eefu hi\u1ec7u cao h\u01a1n (34,33%) v\u00e0 t\u1ef7 l\u1ec7 nhi\u1ec5m th\u1ea5p h\u01a1n (34,44%) so v\u1edbi B\u1ea1ch \u0111\u00e0n Ur\u00f4 892 (t\u1ef7 l\u1ec7 n\u1ea3y ch\u1ed3i l\u00e0 24,32% v\u00e0 nhi\u1ec5m t\u1edbi 45,56%).<\/p>\n

\u25aa B\u1ea1ch \u0111\u00e0n lai\u00a0 UP35, UP58, UP59, UP72, UP99: HgCl2<\/sub> 0,05% trong kho\u1ea3ng th\u1eddi gian 7 ph\u00fat (t\u1ef7 l\u1ec7 m\u1eabu s\u1ed1ng l\u00e0 70,67%, t\u1ef7 l\u1ec7 m\u1eabu nhi\u1ec5m l\u00e0 37,56% v\u00e0 t\u1ef7 l\u1ec7 n\u1ea3y ch\u1ed3i h\u1eefu hi\u1ec7u \u0111\u1ea1t gi\u00e1 tr\u1ecb cao nh\u1ea5t l\u00e0 23,11%). T\u1ef7 l\u1ec7 n\u1ea3y ch\u1ed3i h\u1eefu hi\u1ec7u trong k\u1ebft qu\u1ea3 kh\u1eed tr\u00f9ng v\u1edbi HgCl2<\/sub> 0,05% – 7 ph\u00fat gi\u1eefa c\u00e1c gi\u1ed1ng B\u1ea1ch \u0111\u00e0n lai UP35, UP58, UP59, UP72, UP99 c\u0169ng ho\u00e0n to\u00e0n kh\u00e1c nhau, dao \u0111\u1ed9ng t\u1eeb 18,89 – 27,78%.<\/p>\n

\u25aa B\u1ea1ch \u0111\u00e0n Caman C55, C159, BV22: HgCl2<\/sub> 0,05% trong v\u00f2ng 7 ph\u00fat (t\u1ef7 l\u1ec7 m\u1eabu s\u1ed1ng l\u00e0 70 %, t\u1ef7 l\u1ec7 m\u1eabu nhi\u1ec5m l\u00e0 45,56%, t\u1ef7 l\u1ec7 n\u1ea3y ch\u1ed3i h\u1eefu hi\u1ec7u \u0111\u1ea1t 22,59%). Trong c\u00e1c gi\u1ed1ng B\u1ea1ch \u0111\u00e0n Caman nghi\u00ean c\u1ee9u, gi\u1ed1ng C159 c\u00f3 hi\u1ec7u qu\u1ea3 kh\u1eed tr\u00f9ng t\u1ed1t nh\u1ea5t v\u1edbi t\u1ef7 l\u1ec7 m\u1eabu n\u1ea3y ch\u1ed3i h\u1eefu hi\u1ec7u cao nh\u1ea5t (20,00%) v\u00e0 t\u1ef7 l\u1ec7 nhi\u1ec5m th\u1ea5p nh\u1ea5t (36,67%).<\/p>\n

+ M\u00f4i tr\u01b0\u1eddng t\u00e1i sinh ch\u1ed3i MS<\/i> ph\u00f9 h\u1ee3p v\u1edbi B\u1ea1ch \u0111\u00e0n Ur\u00f4 (cho HSNC l\u00e0 1,68; chi\u1ec1u d\u00e0i ch\u1ed3i \u0111\u1ea1t 1,19 cm), B\u1ea1ch \u0111\u00e0n lai UP (HSNC l\u00e0 1,91; chi\u1ec1u d\u00e0i ch\u1ed3i \u0111\u1ea1t 1,38 cm), B\u1ea1ch \u0111\u00e0n Caman (HSNC l\u00e0 2,03, chi\u1ec1u d\u00e0i ch\u1ed3i l\u00e0 1,54 cm).<\/p>\n

+ Ch\u1ebf \u0111\u1ed9 chi\u1ebfu s\u00e1ng 1:2:2 (3 ng\u00e0y s\u00e1ng: 6 ng\u00e0y t\u1ed1i: 6 ng\u00e0y s\u00e1ng) l\u00e0 ch\u1ebf \u0111\u1ed9 chi\u1ebfu s\u00e1ng t\u1ed1t nh\u1ea5t c\u00e2n \u0111\u1ed1i gi\u1eefa s\u1ed1 ch\u1ed3i\/c\u1ee5m (3 – 4 ch\u1ed3i), chi\u1ec1u cao ch\u1ed3i 1,40 – 1,62cm v\u00e0 ch\u1ed3i ph\u00e2n l\u00f3ng, l\u00e1 m\u1edf v\u00e0 kho\u1ebb m\u1ea1nh. Ch\u1ebf \u0111\u1ed9 n\u00e0y \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn \u0111\u1ec3 th\u1ef1c hi\u1ec7n cho c\u00e1c th\u00ed nghi\u1ec7m nh\u00e2n ch\u1ed3i v\u00e0 ra r\u1ec5 cho c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng nghi\u00ean c\u1ee9u.<\/p>\n

+ M\u00f4i tr\u01b0\u1eddng nh\u00e2n nhanh ch\u1ed3i<\/i><\/p>\n

\u25aa <\/i>B\u1ea1ch \u0111\u00e0n Ur\u00f4 89.1 v\u00e0 89.2: MS** + 1,0 mg\/l BAP <\/i>(h\u1ec7 s\u1ed1 nh\u00e2n ch\u1ed3i \u0111\u1ea1t 2,45 l\u1ea7n, t\u1ef7 l\u1ec7 ch\u1ed3i h\u1eefu hi\u1ec7u l\u00e0 32,40%; ch\u1ed3i sinh tr\u01b0\u1edfng t\u1ed1t). Ph\u1ea3n \u1ee9ng c\u1ee7a gi\u1ed1ng 89.1 v\u00e0 89.2 v\u1edbi c\u00f9ng c\u00f4ng th\u1ee9c nh\u00e2n ch\u1ed3i t\u1ed1t nh\u1ea5t l\u00e0 ho\u00e0n to\u00e0n kh\u00e1c nhau: Trong khi h\u1ec7 s\u1ed1 nh\u00e2n ch\u1ed3i v\u00e0 t\u1ef7 l\u1ec7 ch\u1ed3i h\u1eefu hi\u1ec7u c\u1ee7a gi\u1ed1ng 89.1 l\u1ea7n l\u01b0\u1ee3t l\u00e0 2,04 l\u1ea7n v\u00e0 26,54% th\u00ec c\u00e1c ch\u1ec9 s\u1ed1 n\u00e0y \u1edf gi\u1ed1ng 89.2 l\u1ea1i \u0111\u1ea1t t\u1edbi 2,86 l\u1ea7n v\u00e0 38,26% ch\u1ed3i h\u1eefu hi\u1ec7u.<\/p>\n

\u25aa <\/i>B\u1ea1ch \u0111\u00e0n lai\u00a0 <\/i>UP35, UP58, UP59, UP72, UP99: MS** + 1,5 mg\/l BAP <\/i>(h\u1ec7 s\u1ed1 nh\u00e2n ch\u1ed3i \u0111\u1ea1t 2,93 l\u1ea7n, t\u1ef7 l\u1ec7 ch\u1ed3i h\u1eefu hi\u1ec7u 40,18%). Hi\u1ec7u qu\u1ea3 nh\u00e2n ch\u1ed3i \u1edf c\u00e1c gi\u1ed1ng B\u1ea1ch \u0111\u00e0n lai UP c\u0169ng r\u1ea5t kh\u00e1c bi\u1ec7t, gi\u1ed1ng UP99 c\u00f3 h\u1ec7 s\u1ed1 nh\u00e2n ch\u1ed3i cao nh\u1ea5t (3,76 l\u1ea7n, 48,25% ch\u1ed3i h\u1eefu hi\u1ec7u), \u0111\u1ee9ng th\u1ee9 hai l\u00e0 gi\u1ed1ng UP59 (h\u1ec7 s\u1ed1 nh\u00e2n 3,42 l\u1ea7n v\u00e0 42,62% ch\u1ed3i h\u1eefu hi\u1ec7u), ti\u1ebfp theo l\u00e0 c\u00e1c gi\u1ed1ng UP58, UP35; \u0111\u1ee9ng \u1edf v\u1ecb tr\u00ed cu\u1ed1i l\u00e0 UP72 (h\u1ec7 s\u1ed1 nh\u00e2n 2,45 l\u1ea7n, t\u1ef7 l\u1ec7 ch\u1ed3i h\u1eefu hi\u1ec7u 34,02%).<\/p>\n

\u25aa <\/i>B\u1ea1ch \u0111\u00e0n <\/i>Caman C55, C159, BV22: MS** + 1,0 mg\/l BAP <\/i>(h\u1ec7 s\u1ed1 nh\u00e2n ch\u1ed3i l\u00e0 2,69 l\u1ea7n v\u00e0 t\u1ef7 l\u1ec7 ch\u1ed3i h\u1eefu hi\u1ec7u \u0111\u1ea1t 34,29%). B\u1ea1ch \u0111\u00e0n Caman BV22 c\u0169ng c\u00f3 hi\u1ec7u qu\u1ea3 nh\u00e2n ch\u1ed3i t\u1ed1t nh\u1ea5t trong nh\u00f3m b\u1ea1ch \u0111\u00e0n Caman nghi\u00ean c\u1ee9u (h\u1ec7 s\u1ed1 nh\u00e2n ch\u1ed3i 3,04 l\u1ea7n, 38,72% ch\u1ed3i h\u1eefu hi\u1ec7u).<\/p>\n

+ M\u00f4i tr\u01b0\u1eddng n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng ch\u1ed3i ph\u1ee5c v\u1ee5 qu\u00e1 tr\u00ecnh ra r\u1ec5 th\u00edch h\u1ee3p nh\u1ea5t: <\/i><\/i><\/p>\n

\u25aa <\/i>B\u1ea1ch \u0111\u00e0n Ur\u00f4 89.1 v\u00e0 89.2: MS** + 1,0 mg\/l BAP + 0,50 mg\/l IAA <\/i>(t\u1ef7 l\u1ec7 ch\u1ed3i h\u1eefu hi\u1ec7u \u0111\u1ea1t gi\u00e1 tr\u1ecb cao nh\u1ea5t 67,19%). Hi\u1ec7u qu\u1ea3 n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng ch\u1ed3i c\u1ee7a gi\u1ed1ng 89.2 cao h\u01a1n h\u1eb3n gi\u1ed1ng 89.1: N\u1ebfu nh\u01b0 h\u1ec7 s\u1ed1 nh\u00e2n ch\u1ed3i v\u00e0 t\u1ef7 l\u1ec7 ch\u1ed3i h\u1eefu hi\u1ec7u c\u1ee7a gi\u1ed1ng 89.1 l\u1ea7n l\u01b0\u1ee3t l\u00e0 1,92 l\u1ea7n v\u00e0 59,90% th\u00ec \u1edf gi\u1ed1ng 89.2 \u0111\u1ea1t t\u1edbi 2,74 l\u1ea7n (h\u1ec7 s\u1ed1 nh\u00e2n ch\u1ed3i) v\u00e0 74,48% ch\u1ed3i h\u1eefu hi\u1ec7u.<\/p>\n

\u25aa <\/i>B\u1ea1ch \u0111\u00e0n lai <\/i>UP35, UP58, UP59, UP72, UP99: MS** + 1,5 mg\/l BAP + 0,25 mg\/l IAA <\/i>(t\u1ef7 l\u1ec7 ch\u1ed3i h\u1eefu hi\u1ec7u \u0111\u1ea1t t\u1edbi 72,33%). C\u00f9ng \u0111\u01b0\u1ee3c nu\u00f4i c\u1ea5y trong m\u00f4i tr\u01b0\u1eddng th\u00edch h\u1ee3p l\u00e0 MS** b\u1ed5 sung 1,5 mg\/l BAP v\u00e0 0,25 mg\/l IAA, tuy nhi\u00ean h\u1ec7 s\u1ed1 nh\u00e2n ch\u1ed3i v\u00e0 t\u1ef7 l\u1ec7 ch\u1ed3i h\u1eefu hi\u1ec7u c\u1ee7a c\u00e1c gi\u1ed1ng B\u1ea1ch \u0111\u00e0n lai UP r\u1ea5t kh\u00e1c nhau: gi\u1ed1ng UP99 c\u00f3 h\u1ec7 s\u1ed1 nh\u00e2n ch\u1ed3i v\u00e0 t\u1ef7 l\u1ec7 ch\u1ed3i h\u1eefu hi\u1ec7u cao nh\u1ea5t (3,29 l\u1ea7n & 81,43%), ti\u1ebfp theo l\u00e0 c\u00e1c gi\u1ed1ng UP59, UP58, UP35 v\u00e0 sau c\u00f9ng l\u00e0 UP72 .<\/p>\n

\u25aa <\/i>B\u1ea1ch \u0111\u00e0n <\/i>Caman C55, C159, BV22: MS** + 1,0 mg\/l BAP + 0,25 mg\/l GA3 <\/sub><\/i>t\u1ef7 l\u1ec7 ch\u1ed3i h\u1eefu hi\u1ec7u \u0111\u1ea1t t\u1edbi 68,07%). V\u1edbi B\u1ea1ch \u0111\u00e0n Caman, v\u1edbi h\u1ec7 s\u1ed1 nh\u00e2n ch\u1ed3i 2,83 l\u1ea7n v\u00e0 72,32% ch\u1ed3i h\u1eefu hi\u1ec7u ch\u1ee9ng t\u1ecf gi\u1ed1ng BV22 c\u00f3 hi\u1ec7u qu\u1ea3 n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng ch\u1ed3i t\u1ed1t nh\u1ea5t trong nh\u00f3m.<\/p>\n

+ K\u1ebft qu\u1ea3 ra r\u1ec5 in vitro <\/i>cho c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng nghi\u00ean c\u1ee9u<\/p>\n

\u25aa <\/i>B\u1ea1ch \u0111\u00e0n Ur\u00f4 89.1 v\u00e0 89.2: 1\/2 MS** + 2,0 mg\/l IBA <\/i>(t\u1ef7 l\u1ec7 ch\u1ed3i ra r\u1ec5 \u0111\u1ea1t 89,55%, s\u1ed1 r\u1ec5\/c\u00e2y \u0111\u1ea1t 2,41 v\u00e0 chi\u1ec1u d\u00e0i r\u1ec5 l\u00e0 1,29 cm). Gi\u1ed1ng 89.1 cho t\u1ef7 l\u1ec7 ra r\u1ec5 85,12%, s\u1ed1 r\u1ec5\/c\u00e2y l\u00e0 2,09. Gi\u1ed1ng 89.2 cho t\u1ef7 l\u1ec7 ra r\u1ec5 93,97%, c\u00f3 2,73 r\u1ec5\/c\u00e2y.<\/p>\n

\u25aa <\/i>B\u1ea1ch \u0111\u00e0n lai\u00a0 <\/i>UP35, UP58, UP59, UP72, UP99: 1\/2 MS** + 1,0 mg\/l IBA <\/b><\/i>(92,36% ch\u1ed3i ra r\u1ec5, c\u00f3 2,29\u00a0 r\u1ec5\/c\u00e2y v\u00e0 r\u1ec5 d\u00e0i 1,42 cm). B\u1ea1ch \u0111\u00e0n lai UP99 cho t\u1edbi 100% ch\u1ed3i ra r\u1ec5 trong m\u00f4i tr\u01b0\u1eddng 1\/2 MS** + 1,0 mg\/l IBA.<\/p>\n

\u25aa <\/i>B\u1ea1ch \u0111\u00e0n <\/i>Caman C55, C159, BV22: 1\/2 MS** +1,5 mg\/l IBA <\/b><\/i>(95,29% ch\u1ed3i ra r\u1ec5, \u0111\u1ea1t 2,63 r\u1ec5\/c\u00e2y v\u00e0 chi\u1ec1u d\u00e0i r\u1ec5 l\u00e0 1,3 cm). Gi\u1ed1ng BV22 cho t\u1edbi 99,02% ch\u1ed3i ra r\u1ec5 trong m\u00f4i tr\u01b0\u1eddng 1\/2 MS** +1,5 mg\/l IBA.<\/p>\n

+ <\/i>Trong c\u00e1c c\u00f4ng th\u1ee9c v\u1ec1 th\u1eddi gian hu\u1ea5n luy\u1ec7n c\u00e2y, t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a c\u00e2y con \u0111\u1ea1t gi\u00e1 tr\u1ecb cao nh\u1ea5t (88,64 – 93,47%), chi\u1ec1u cao c\u00e2y \u0111\u1ea1t 4,21 – 5,62 cm khi c\u00e2y con \u0111\u01b0\u1ee3c hu\u1ea5n luy\u1ec7n t\u1eeb 6 – 10 ng\u00e0y.<\/p>\n

+ \u0110\u1ed1i v\u1edbi c\u1ea3 3 lo\u00e0i b\u1ea1ch \u0111\u00e0n, t\u1ef7 l\u1ec7 s\u1ed1ng v\u00e0 chi\u1ec1u cao c\u00e2y con \u0111\u1ea1t gi\u00e1 tr\u1ecb cao nh\u1ea5t khi c\u1ea5y v\u00e0o lo\u1ea1i gi\u00e1 th\u1ec3 c\u00f3 70% \u0111\u1ea5t m\u1ea7u + 20% than tr\u1ea5u + 10% ph\u00e2n chu\u1ed3ng hoai (\u0111\u1ea1t 87,29 – 91,28%, chi\u1ec1u cao trung b\u00ecnh 8,6 – 9,3 cm).<\/p>\n

1.3. <\/b>X\u00e2y d\u1ef1ng m\u00f4 h\u00ecnh nh\u00e2n gi\u1ed1ng cho c\u00e1c gi\u1ed1ng nghi\u00ean c\u1ee9u (02 m\u00f4 h\u00ecnh)<\/b><\/b><\/p>\n

\u0110\u1ec1 t\u00e0i \u0111\u00e3 t\u1eadp hu\u1ea5n, h\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt nu\u00f4i c\u1ea5y m\u00f4 t\u1ebf b\u00e0o cho c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng nghi\u00ean c\u1ee9u v\u00e0 chuy\u1ec3n giao 10 b\u00ecnh gi\u1ed1ng g\u1ed1c\/gi\u1ed1ng\/\u0111\u01a1n v\u1ecb cho 2 \u0111\u01a1n v\u1ecb s\u1ea3n xu\u1ea5t:<\/b><\/p>\n

– Trung t\u00e2m nghi\u00ean c\u1ee9u th\u1ef1c nghi\u1ec7m l\u00e2m nghi\u1ec7p \u0110\u00f4ng Nam B\u1ed9 (tr\u01b0\u1edbc n\u0103m 2013 c\u00f3 t\u00ean c\u0169 l\u00e0 Trung t\u00e2m KHSX l\u00e2m nghi\u1ec7p \u0110\u00f4ng Nam B\u1ed9)<\/p>\n

– DNTN d\u1ecbch v\u1ee5 c\u00e2y tr\u1ed3ng Nguy\u00ean H\u1ea1nh<\/p>\n

C\u00e1c \u0111\u01a1n v\u1ecb ti\u1ebfp nh\u1eadn n\u00e0y \u0111\u00e3 th\u1ef1c hi\u1ec7n t\u1ed1t v\u00e0 th\u00e0nh th\u1ee5c c\u00e1c k\u1ef9 thu\u1eadt c\u01a1 b\u1ea3n v\u1ec1 nu\u00f4i c\u1ea5y m\u00f4 c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c chuy\u1ec3n giao. Hi\u1ec7n nay, hai \u0111\u01a1n v\u1ecb n\u00e0y \u0111\u00e3 nh\u00e2n gi\u1ed1ng b\u1eb1ng nu\u00f4i c\u1ea5y m\u00f4 c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c chuy\u1ec3n giao \u1edf quy m\u00f4 s\u1ea3n xu\u1ea5t, t\u01b0\u01a1ng lai c\u00f3 th\u1ec3 cung c\u1ea5p gi\u1ed1ng cho to\u00e0n t\u1ec9nh v\u00e0 c\u00e1c t\u1ec9nh l\u00e2n c\u1eadn.<\/p>\n

1.4. X\u00e2y d\u1ef1ng m\u00f4 h\u00ecnh r\u1eebng tr\u1ed3ng cho c\u00e1c gi\u1ed1ng nghi\u00ean c\u1ee9u (05 ha)<\/b><\/b><\/p>\n

\u0110\u1ec1 t\u00e0i x\u00e2y d\u1ef1ng 05 ha m\u00f4 h\u00ecnh r\u1eebng tr\u1ed3ng cho c\u00e1c gi\u1ed1ng nghi\u00ean c\u1ee9u (03 ha cho c\u00e1c gi\u1ed1ng Keo – t\u1ea1i H\u00e0 N\u1ed9i v\u00e0 02 ha cho c\u00e1c gi\u1ed1ng B\u1ea1ch \u0111\u00e0n – t\u1ea1i \u0110\u1ed3ng Nai). Sau m\u1ed9t n\u0103m tr\u1ed3ng, t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a 2 m\u00f4 h\u00ecnh \u0111\u1ea1t 80,13 – 97,00%.<\/p>\n

Keo lai gi\u1ed1ng TB1, TB11, AH1, AH7 c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng \u0111\u1ea1t 98,75 – 100%, \u0111\u01b0\u1eddng k\u00ednh \u0111\u1ea1t 3,38 – 3,72 cm; chi\u1ec1u cao \u0111\u1ea1t 2,56 – 2,73 m. Keo l\u00e1 tr\u00e0m gi\u1ed1ng AA1, AA9, Clt7, Clt26, Clt18, Clt57 c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng \u0111\u1ea1t 93,75 – 100%, \u0111\u01b0\u1eddng k\u00ednh \u0111\u1ea1t t\u1eeb 3,25 – 3,76 cm; chi\u1ec1u cao 2,46 – 2,70 m. C\u00e1c c\u00f4ng th\u1ee9c \u0111\u1ed1i ch\u1ee9ng nh\u01b0 BV10, BV16, BV32 cho t\u1ef7 l\u1ec7 s\u1ed1ng \u0111\u1ea1t 92,50 – 99,25%, \u0111\u01b0\u1eddng k\u00ednh \u0111\u1ea1t 3,97 – 4,18 cm; chi\u1ec1u cao \u0111\u1ea1t 2,79 – 2,96 m. Keo l\u00e1 tr\u00e0m h\u1ea1t c\u00f3 90% c\u00e2y s\u1ed1ng, sinh tr\u01b0\u1edfng th\u1ea5p v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh (2,26 cm) v\u00e0 chi\u1ec1u cao (1,93 m).<\/p>\n

B\u1ea1ch \u0111\u00e0n Ur\u00f4: U891 v\u00e0 U892 c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng \u0111\u1ea1t 83,00 – 84,81%; \u0111\u01b0\u1eddng k\u00ednh \u0111\u1ea1t 5,20 – 5,58 cm; chi\u1ec1u cao \u0111\u1ea1t 5,79 – 6,36 m . C\u00e1c gi\u1ed1ng B\u1ea1ch \u0111\u00e0n lai UP: UP99, UP35, UP72, UP58, UP59 c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng \u0111\u1ea1t 86,43 – 91,38%; \u0111\u01b0\u1eddng k\u00ednh t\u1eeb 5,44 – 5,87 cm; chi\u1ec1u cao \u0111\u1ea1t 6,23 – 6,76 m. B\u1ea1ch \u0111\u00e0n Caman C55, C159, BV22 c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng t\u1eeb 81,25 – 93,42%; \u0111\u01b0\u1eddng k\u00ednh t\u1eeb 5,18 – 5,44 cm; chi\u1ec1u cao \u0111\u1ea1t 6,38 – 6,55 m. C\u00e1c gi\u1ed1ng B\u1ea1ch \u0111\u00e0n \u0111\u1ed1i ch\u1ee9ng c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng dao \u0111\u1ed9ng kh\u00e1 l\u1edbn t\u1eeb 52,47 – 100%; \u0111\u01b0\u1eddng k\u00ednh \u0111\u1ea1t 4,05 – 5,50 cm; chi\u1ec1u cao \u0111\u1ea1t t\u1eeb 4,50 – 7,07 m; gi\u1ed1ng U1 \u0111\u00e3 c\u00f3 d\u1ea5u hi\u1ec7u b\u1ecb s\u00e2u b\u1ec7nh.<\/p>\n

Ngo\u00e0i ra, \u0111\u1ec1 t\u00e0i c\u00f2n c\u00f3 th\u00eam c\u00e1c s\u1ea3n ph\u1ea9m sau:<\/p>\n

– 01 Quy tr\u00ecnh nh\u00e2n gi\u1ed1ng b\u1eb1ng nu\u00f4i c\u1ea5y m\u00f4 cho Keo lai (gi\u1ed1ng AH1, AH7, TB1, TB11).<\/p>\n

– 01 Quy tr\u00ecnh nh\u00e2n gi\u1ed1ng b\u1eb1ng nu\u00f4i c\u1ea5y m\u00f4 cho Keo l\u00e1 tr\u00e0m (gi\u1ed1ng AA1, AA9, Clt26, Clt7, Clt18, Clt57).<\/p>\n

– 01 Quy tr\u00ecnh nh\u00e2n gi\u1ed1ng b\u1eb1ng nu\u00f4i c\u1ea5y m\u00f4 B\u1ea1ch \u0111\u00e0n Caman (gi\u1ed1ng C55, C159, BV22).<\/p>\n

– 01 Quy tr\u00ecnh nh\u00e2n gi\u1ed1ng b\u1eb1ng nu\u00f4i c\u1ea5y m\u00f4 cho B\u1ea1ch \u0111\u00e0n lai (gi\u1ed1ng UP35, UP58, UP59, UP72, UP99).<\/p>\n

– 01 Quy tr\u00ecnh nh\u00e2n gi\u1ed1ng b\u1eb1ng nu\u00f4i c\u1ea5y m\u00f4 cho B\u1ea1ch \u0111\u00e0n Uro (gi\u1ed1ng 89.1, 89.2).<\/p>\n

– \u0110\u1ec1 t\u00e0i c\u0169ng \u0111\u00e3 \u0111\u00e0o t\u1ea1o \u0111\u01b0\u1ee3c 01 Th\u1ea1c s\u1ef9 L\u00e2m nghi\u1ec7p<\/p>\n

– Xu\u1ea5t b\u1ea3n 1 b\u00e0i b\u00e1o tr\u00ean T\u1ea1p ch\u00ed c\u1ee7a Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam.<\/p>\n

– S\u1ed1 l\u01b0\u1ee3ng c\u00e2y con t\u1ea1o ra:<\/p>\n

C\u00e2y m\u00f4 Keo lai: AH1, AH7, TB1, TB11: 6000 c\u00e2y\/gi\u1ed1ng<\/p>\n

C\u00e2y m\u00f4 Keo l\u00e1 tr\u00e0m: AA1, AA9, Clt26, Clt7, Clt18, Clt57: 5000 c\u00e2y\/gi\u1ed1ng<\/p>\n

C\u00e2y m\u00f4 B\u1ea1ch \u0111\u00e0n Caman: C55, C159, BV22: 3000 c\u00e2y\/gi\u1ed1ng<\/p>\n

C\u00e2y m\u00f4 B\u1ea1ch \u0111\u00e0n UP: UP35, UP58, UP59, UP72, UP99: 3000 c\u00e2y\/gi\u1ed1ng<\/p>\n

C\u00e2y m\u00f4 B\u1ea1ch \u0111\u00e0n Uro: 89.1, 89.2: 3000 c\u00e2y\/gi\u1ed1ng<\/p>\n

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

Ng\u00e0y 27\/ 01 \/2015, Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam \u0111\u00e3 th\u00e0nh l\u1eadp H\u1ed9i \u0111\u1ed3ng Khoa h\u1ecdc C\u00f4ng ngh\u1ec7 c\u1ea5p c\u01a1 s\u1edf, nghi\u1ec7m thu t\u1ed5ng k\u1ebft \u0111\u1ec1 t\u00e0i thu\u1ed9c \u201cCh\u01b0\u01a1ng tr\u00ecnh tr\u1ecdng\u00a0 \u0111i\u1ec3m ph\u00e1t tri\u1ec3n v\u00e0 \u1ee9ng d\u1ee5ng c\u00f4ng ngh\u1ec7 sinh h\u1ecdc trong l\u0129nh v\u1ef1c N\u00f4ng nghi\u1ec7p v\u00e0 PTNT\u201d. T\u00ean \u0111\u1ec1 t\u00e0i: Nghi\u00ean c\u1ee9u […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[47,72],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/14183"}],"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=14183"}],"version-history":[{"count":3,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/14183\/revisions"}],"predecessor-version":[{"id":14188,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/14183\/revisions\/14188"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=14183"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=14183"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=14183"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}