{"id":6642,"date":"2014-03-12T01:28:49","date_gmt":"2014-03-11T18:28:49","guid":{"rendered":"http:\/\/antoansinhhoc.vn\/?p=1838"},"modified":"2014-03-12T01:28:49","modified_gmt":"2014-03-11T18:28:49","slug":"su-cai-thien-di-truyen-o-dau-tuong-cua-my-dang-sau-van-de-tang-san-luong","status":"publish","type":"post","link":"https:\/\/nbca.gov.vn\/su-cai-thien-di-truyen-o-dau-tuong-cua-my-dang-sau-van-de-tang-san-luong\/","title":{"rendered":"S\u1ef1 c\u1ea3i thi\u1ec7n di truy\u1ec1n \u1edf \u0111\u1eadu t\u01b0\u01a1ng c\u1ee7a M\u1ef9 \u0111\u1eb1ng sau v\u1ea5n \u0111\u1ec1 t\u0103ng s\u1ea3n l\u01b0\u1ee3ng"},"content":{"rendered":"
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C\u1ea3i thi\u1ec7n ph\u1ea9m ch\u1ea5t c\u1ee7a c\u00e2y \u0111\u1eadu t\u01b0\u01a1ng th\u00f4ng qua c\u00f4ng t\u00e1c nh\u00e2n gi\u1ed1ng \u0111\u00e3 tr\u1edf n\u00ean quan tr\u1ecdng trong nh\u1eefng n\u0103m qua \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ed9t v\u1ee5 m\u00f9a b\u1ed9i thu.<\/span>\u0110\u0103ng ng\u00e0y 12-03-2014<\/span> trong chuy\u00ean m\u1ee5c Tin th\u1ebf gi\u1edbi<\/a><\/p>\n<\/div>\n

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M\u1ed9t nghi\u00ean c\u1ee9u m\u1edbi \u0111\u00e2y \u0111\u00e3 ph\u00e1t hi\u1ec7n ra nh\u1eefng thay \u0111\u1ed5i di truy\u1ec1n trong c\u00e1c gi\u1ed1ng \u0111\u1eadu t\u01b0\u01a1ng trong h\u01a1n 80 n\u0103m qua. C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u k\u1ebft lu\u1eadn r\u1eb1ng, t\u0103ng s\u1ea3n l\u01b0\u1ee3ng v\u00e0 t\u0103ng t\u1ef7 l\u1ec7 l\u1ee3i nhu\u1eadn trong nh\u1eefng n\u0103m qua ch\u1ee7 y\u1ebfu l\u00e0 nh\u1edd c\u00e1c nh\u00e0 nh\u00e2n gi\u1ed1ng \u0111\u00e3 li\u00ean t\u1ee5c \u0111\u01b0a ra c\u00e1c c\u00e1c gi\u1ed1ng c\u00f3 n\u0103ng su\u1ea5t cao h\u01a1n.<\/p>\n

Nghi\u00ean c\u1ee9u n\u00e0y theo m\u1ed9t c\u00e1ch n\u00e0o \u0111\u00f3 nh\u00ecn l\u1ea1i v\u00e0 th\u00f4ng b\u00e1o cho c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u bi\u1ebft c\u00e1c gi\u1ed1ng \u0111\u1eadu t\u01b0\u01a1ng \u0111\u00e3 thay \u0111\u1ed5i nh\u01b0 th\u1ebf n\u00e0o. R\u1ea5t h\u1eefu \u00edch \u0111\u1ec3 ghi l\u1ea1i nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m v\u00e0 nh\u1eefng thay \u0111\u1ed5i n\u00e0y, Brian Diers – nh\u00e0 lai t\u1ea1o gi\u1ed1ng c\u00e2y tr\u1ed3ng v\u00e0 l\u00e0 nh\u00e0 nghi\u00ean c\u1ee9u c\u1ee7a nghi\u00ean c\u1ee9u n\u00e0y c\u00f4ng t\u00e1c t\u1ea1i tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Illinois cho bi\u1ebft. C\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng, c\u00e1c nh\u00e0 lai t\u1ea1o gi\u1ed1ng \u0111\u00e3 th\u1ef1c s\u1ef1 th\u00e0nh c\u00f4ng trong vi\u1ec7c t\u0103ng n\u0103ng su\u1ea5t cho c\u00e2y tr\u1ed3ng n\u00e0y.<\/div>\n
Diers v\u00e0 m\u1ed9t \u0111\u1ed9i ng\u0169 c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1eeb nhi\u1ec1u t\u1ed5 ch\u1ee9c kh\u00e1c nhau \u0111\u00e3 \u0111\u00e1nh gi\u00e1 to\u00e0n b\u1ed9 l\u1ecbch s\u1eed c\u1ee7a 60 nh\u00f3m \u0111\u1eadu t\u01b0\u01a1ng thu\u1ea7n th\u1ee5c (MG) II, 59 MG III, v\u00e0 gi\u1ed1ng \u0111\u1eadu t\u01b0\u01a1ng 49 MG IV \u0111\u01b0\u1ee3c \u0111\u01b0a ra trong giai \u0111o\u1ea1n 1923-2008 qua nh\u1eefng th\u1eed nghi\u1ec7m th\u1ef1c \u0111\u1ecba \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh \u1edf 17 qu\u1ed1c gia v\u00e0 m\u1ed9t t\u1ec9nh c\u1ee7a Canada trong th\u1eddi \u0111i\u1ec3m 2010-2011.<\/div>\n
C\u00e1c th\u1eed nghi\u1ec7m bao g\u1ed3m vi\u1ec7c gi\u1edbi thi\u1ec7u gi\u1ed1ng c\u00e2y (PI) v\u00e0 c\u00e1c gi\u1ed1ng c\u00e2y tr\u1ed3ng thu \u0111\u01b0\u1ee3c t\u1eeb B\u1ed9 s\u01b0u t\u1eadp m\u1ea7m \u0111\u1eadu t\u01b0\u01a1ng c\u1ee7a B\u1ed9 N\u00f4ng nghi\u1ec7p M\u1ef9 (USDA) \u0111\u1eb7t t\u1ea1i Trung t\u00e2m Nghi\u00ean c\u1ee9u \u0111\u1eadu t\u01b0\u01a1ng qu\u1ed1c gia t\u1ea1i tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Illinois, c\u0169ng nh\u01b0 t\u1eeb c\u00e1c gi\u1ed1ng do c\u00f4ng ty Monsanto, Pioneer v\u00e0 Syngenta cung c\u1ea5p.<\/div>\n
Trong qu\u00e1 tr\u00ecnh ghi l\u1ea1i nh\u1eefng thay \u0111\u1ed5i di truy\u1ec1n, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u quan s\u00e1t th\u1ea5y s\u1ef1 gia t\u0103ng s\u1ea3n l\u01b0\u1ee3ng trong 80 n\u0103m qua t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi m\u1ed9t s\u1ef1 gia t\u0103ng 1\/3 gi\u1ea1\/m\u1eabu Anh\/n\u0103m.<\/div>\n
Diers cho bi\u1ebft, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u01b0\u1edbc t\u00ednh r\u1eb1ng s\u1ef1 gia t\u0103ng kho\u1ea3ng 2\/3 n\u0103ng su\u1ea5t t\u1ea1i c\u00e1c c\u00e1nh \u0111\u1ed3ng canh t\u00e1c c\u1ee7a ng\u01b0\u1eddi n\u00f4ng d\u00e2n l\u00e0 do gi\u1ed1ng m\u1edbi m\u00e0 c\u00e1c nh\u00e0 lai t\u1ea1o \u0111\u00e3 gi\u1edbi thi\u1ec7u v\u1edbi b\u00ean th\u1ee9 ba kh\u00e1c v\u00ec l\u00fd do ch\u1eb3ng h\u1ea1n nh\u01b0 c\u1ea3i thi\u1ec7n th\u1ef1c h\u00e0nh n\u00f4ng nghi\u1ec7p.<\/div>\n
Khi so s\u00e1nh gi\u1ed1ng c\u0169 v\u1edbi gi\u1ed1ng m\u1edbi th\u00ec th\u1ea5y r\u1eb1ng gi\u1ed1ng m\u1edbi c\u00f3 n\u0103ng su\u1ea5t cao h\u01a1n nhi\u1ec1u so v\u1edbi c\u00e1c gi\u1ed1ng c\u0169. Nh\u00ecn v\u00e0o c\u00e1c d\u1eef li\u1ec7u c\u1ee5 th\u1ec3 h\u01a1n, n\u0103ng su\u1ea5t t\u0103ng \u0111\u00e3 th\u1ef1c s\u1ef1 t\u0103ng t\u1ed1c b\u1eaft \u0111\u1ea7u t\u1eeb nh\u1eefng n\u0103m 1960 v\u00e0 1970. C\u00f3 s\u1ef1 kh\u00e1c nhau \u0111\u1ed1i v\u1edbi m\u1ed7i nh\u00f3m thu\u1ea7n th\u1ee5c, nh\u01b0ng t\u0103ng s\u1ea3n l\u01b0\u1ee3ng hi\u1ec7n nay l\u00e0 cao h\u01a1n so v\u1edbi tr\u01b0\u1edbc \u0111\u00f3, Diers n\u00f3i.<\/div>\n
Nghi\u00ean c\u1ee9u n\u00e0y c\u0169ng cho th\u1ea5y r\u1eb1ng, khi so s\u00e1nh v\u1edbi c\u00e1c gi\u1ed1ng c\u0169, c\u00e1c gi\u1ed1ng m\u1edbi c\u00f3 chi\u1ec1u cao th\u1ea5p h\u01a1n, thu\u1ea7n th\u1ee5c mu\u1ed9n h\u01a1n, h\u1ea1t ch\u1ee9a \u00edt pr\u00f4t\u00eain h\u01a1n v\u00e0 h\u00e0m l\u01b0\u1ee3ng d\u1ea7u cao h\u01a1n.<\/div>\n
C\u00e1c gi\u1ed1ng m\u1edbi c\u00f3 xu h\u01b0\u1edbng ch\u00edn ch\u1eadm h\u01a1n trong c\u00e1c nh\u00f3m thu\u1ea7n th\u1ee5c n\u00e0y, \u0111\u00f3 l\u00e0 \u0111i\u1ec1u m\u00e0 v\u1ec1 m\u1eb7t l\u00fd thuy\u1ebft kh\u00f4ng n\u00ean x\u1ea3y ra b\u1edfi v\u00ec c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u ph\u00e2n lo\u1ea1i c\u00e1c gi\u1ed1ng n\u00e0y d\u1ef1a v\u00e0o th\u1eddi gian ch\u00edn c\u1ee7a ch\u00fang.<\/div>\n
\u0110\u1eadu t\u01b0\u01a1ng l\u00e0 m\u1ed9t ngu\u1ed3n pr\u00f4t\u00eain v\u00e0 d\u1ea7u th\u1ef1c ph\u1ea9m h\u00e0ng \u0111\u1ea7u cho con ng\u01b0\u1eddi, l\u00e0 th\u00e0nh ph\u1ea7n trong th\u1ee9c \u0103n gia s\u00fac v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m kh\u00e1c, do \u0111\u00f3, vi\u1ec7c t\u0103ng n\u0103ng su\u1ea5t \u0111\u1eadu t\u01b0\u01a1ng to\u00e0n c\u1ea7u s\u1ebd c\u1ea7n ph\u1ea3i theo k\u1ecbp v\u1edbi nhu c\u1ea7u trong t\u01b0\u01a1ng lai.<\/div>\n
H\u1ea7u h\u1ebft vi\u1ec7c t\u0103ng n\u0103ng su\u1ea5t l\u00e0 k\u1ebft qu\u1ea3 do c\u00e1c nh\u00e0 lai t\u1ea1o gi\u1ed1ng ch\u1ecdn l\u1ecdc ra nh\u1eefng li\u00ean k\u1ebft gien t\u1ed1t h\u01a1n c\u00f3 th\u1ec3 cho ph\u00e9p c\u00e2y tr\u1ed3ng nh\u1eadn \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi v\u00e0 cho nhi\u1ec1u h\u1ea1t h\u01a1n t\u1eeb h\u1ea5p th\u1ee5 \u00e1nh s\u00e1ng m\u1eb7t tr\u1eddi. H\u1ecd kh\u00f4ng bi\u1ebft c\u00e1c nh\u00e0 lai t\u1ea1o gi\u1ed1ng \u0111\u00e3 ch\u1ecdn l\u1ecdc gien n\u00e0o \u0111\u1ec3 khi\u1ebfn s\u1ea3n l\u01b0\u1ee3ng t\u0103ng l\u00ean, ch\u1eb3ng h\u1ea1n nh\u01b0 v\u1ecb tr\u00ed n\u00e0o tr\u00ean h\u00e0nh tr\u00ecnh t\u1eeb l\u00fac \u00e1nh s\u00e1ng t\u00e1c \u0111\u1ed9ng v\u00e0o t\u00e1n l\u00e1 \u0111\u1ec3 t\u1ea1o ra h\u1ea1t, di\u1ec5n ra \u1edf \u0111o\u1ea1n n\u00e0o. C\u00e1c nh\u00e0 lai t\u1ea1o gi\u1ed1ng b\u1eb1ng c\u00e1ch ch\u1ecdn l\u1ecdc ra c\u00e1c gi\u1ed1ng m\u1edbi cho s\u1ea3n l\u01b0\u1ee3ng cao h\u01a1n, c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n ti\u1ebfn tr\u00ecnh n\u00e0y m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i th\u1ef1c s\u1ef1 hi\u1ec3u c\u01a1 ch\u1ebf \u0111\u00f3, Diers n\u00f3i.<\/div>\n
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Theo Sciencedaily.<\/strong><\/em><\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

C\u1ea3i thi\u1ec7n ph\u1ea9m ch\u1ea5t c\u1ee7a c\u00e2y \u0111\u1eadu t\u01b0\u01a1ng th\u00f4ng qua c\u00f4ng t\u00e1c nh\u00e2n gi\u1ed1ng \u0111\u00e3 tr\u1edf n\u00ean quan tr\u1ecdng trong nh\u1eefng n\u0103m qua \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ed9t v\u1ee5 m\u00f9a b\u1ed9i thu.\u0110\u0103ng ng\u00e0y 12-03-2014 trong chuy\u00ean m\u1ee5c Tin th\u1ebf gi\u1edbi M\u1ed9t nghi\u00ean c\u1ee9u m\u1edbi \u0111\u00e2y \u0111\u00e3 ph\u00e1t hi\u1ec7n ra nh\u1eefng thay \u0111\u1ed5i di truy\u1ec1n trong c\u00e1c […]\n","protected":false},"author":1,"featured_media":6382,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[87],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts\/6642"}],"collection":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/comments?post=6642"}],"version-history":[{"count":0,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts\/6642\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media\/6382"}],"wp:attachment":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media?parent=6642"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/categories?post=6642"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/tags?post=6642"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}