{"id":6753,"date":"2015-10-15T08:05:02","date_gmt":"2015-10-15T01:05:02","guid":{"rendered":"http:\/\/antoansinhhoc.vn\/?p=1206"},"modified":"2015-10-15T08:05:02","modified_gmt":"2015-10-15T01:05:02","slug":"giong-lua-dot-bien-big-grain1-cho-san-luong-cao","status":"publish","type":"post","link":"https:\/\/nbca.gov.vn\/giong-lua-dot-bien-big-grain1-cho-san-luong-cao\/","title":{"rendered":"Gi\u1ed1ng l\u00faa \u0111\u1ed9t bi\u1ebfn Big Grain1 cho s\u1ea3n l\u01b0\u1ee3ng cao"},"content":{"rendered":"<div class=\"TomTat clearfix\">\n<h1><span id=\"ArticalDetail1_lblHeadline\">Gi\u1ed1ng l\u00faa \u0111\u1ed9t bi\u1ebfn Big Grain1 cho s\u1ea3n l\u01b0\u1ee3ng cao<\/span><\/h1>\n<p><span id=\"ArticalDetail1_lblTeaser\" class=\"OverollContentDesc\">L\u00faa l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e2y l\u01b0\u01a1ng th\u1ef1c quan tr\u1ecdng nh\u1ea5t. V\u1edbi 4,3 t\u1ef7 ng\u01b0\u1eddi, ch\u00e2u \u00c1 chi\u1ebfm t\u1edbi 60% d\u00e2n s\u1ed1 th\u1ebf gi\u1edbi, v\u00ec v\u1eady kh\u00f4ng ng\u1ea1c nhi\u00ean r\u1eb1ng kho\u1ea3ng 90% c\u00e1c gi\u1ed1ng l\u00faa c\u1ee7a th\u1ebf gi\u1edbi \u0111\u01b0\u1ee3c tr\u1ed3ng tr\u00ean l\u1ee5c \u0111\u1ecba l\u1edbn nh\u1ea5t v\u00e0 \u0111\u00f4ng d\u00e2n nh\u1ea5t c\u1ee7a Tr\u00e1i \u0111\u1ea5t.<\/span><\/p>\n<\/div>\n<div class=\"NoiDungBai\">\n<div>V\u1edbi m\u1ee9c t\u0103ng d\u00e2n s\u1ed1 d\u1ef1 ki\u1ebfn trong nh\u1eefng th\u1eadp k\u1ef7 t\u1edbi, nghi\u00ean c\u1ee9u th\u1ef1c v\u1eadt \u0111\u1eb7t m\u1ee5c ti\u00eau t\u0103ng n\u0103ng su\u1ea5t c\u00e2y tr\u1ed3ng v\u00e0 \u0111i\u1ec1u n\u00e0y th\u1eadm ch\u00ed g\u00e2y n\u00ean m\u1ed9t s\u1ed1 tranh c\u00e3i. Nh\u01b0ng c\u00f3 v\u1ebb nh\u01b0 kh\u1ea3 n\u0103ng s\u1ef1 k\u1ef3 th\u1ecb v\u1edbi c\u00e2y tr\u1ed3ng bi\u1ebfn \u0111\u1ed5i gien s\u1ebd gi\u1ea3m khi vi\u1ec7c \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a d\u00e2n s\u1ed1 ng\u00e0y c\u00e0ng t\u0103ng tr\u1edf n\u00ean c\u1ea5p b\u00e1ch h\u01a1n.<\/div>\n<div><\/div>\n<div>M\u1ed9t trong nh\u1eefng ti\u00eau ch\u00ed \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 s\u1ea3n l\u01b0\u1ee3ng g\u1ea1o l\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t. Tuy vi\u1ec7c t\u0103ng k\u00edch th\u01b0\u1edbc h\u1ea1t l\u00e0 m\u1ed9t m\u1ee5c ti\u00eau tr\u1ecdng \u0111i\u1ec3m c\u1ee7a ng\u00e0nh n\u00f4ng nghi\u1ec7p, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u v\u1eabn kh\u00f4ng bi\u1ebft y\u1ebfu t\u1ed1 n\u00e0o \u0111i\u1ec1u ch\u1ec9nh k\u00edch th\u01b0\u1edbc h\u1ea1t. G\u1ea7n \u0111\u00e2y, m\u1ed9t nh\u00f3m c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1ea1i B\u1eafc Kinh, Trung Qu\u1ed1c b\u00e1o c\u00e1o \u0111\u00e3 ph\u00e1t hi\u1ec7n m\u1ed9t \u0111\u1ed9t bi\u1ebfn g\u1ea1o chi\u1ebfm \u01b0u th\u1ebf \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Big Grain1 cho th\u1ea5y m\u1ed9t ki\u1ec3u h\u00ecnh h\u1ea1t c\u1ef1c l\u1edbn. H\u1ecd \u0111\u00e3 c\u00f4ng b\u1ed1 ph\u00e1t hi\u1ec7n c\u1ee7a m\u00ecnh trong K\u1ef7 y\u1ebfu c\u1ee7a Vi\u1ec7n h\u00e0n l\u00e2m khoa h\u1ecdc.<\/div>\n<div><\/div>\n<div>K\u00edch th\u01b0\u1edbc h\u1ea1t gi\u1ed1ng, m\u1ed9t trong s\u1ed1 nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n b\u1edfi c\u00e1c ho\u00f3cm\u00f4n kh\u00e1c nhau, bao g\u1ed3m auxin (ch\u1ea5t k\u00edch th\u00edch th\u1ef1c v\u1eadt) t\u1ed3n t\u1ea1i ch\u1ee7 y\u1ebfu \u1edf d\u1ea1ng axit indole-3-acetic \u1edf c\u00e1c c\u00e2y tr\u1ed3ng. \u0110\u00e2y l\u00e0 y\u1ebfu t\u1ed1 \u0111i\u1ec1u ch\u1ec9nh s\u1ef1 t\u0103ng tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e2y, s\u1ef1 k\u00e9o d\u00e0i c\u1ee7a th\u00e2n v\u00e0 s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a m\u1ea1ch. Tuy nhi\u00ean, do s\u1ef1 ph\u1ee9c t\u1ea1p c\u1ee7a qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n ho\u00f3c-m\u00f4n trong ph\u1ea3n \u1ee9ng ooc-xin, c\u00e1c nh\u00e0 khoa h\u1ecdc v\u1eabn ch\u01b0a x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c ooc-xin \u0111i\u1ec1u ch\u1ec9nh k\u00edch th\u01b0\u1edbc h\u1ea1t nh\u01b0 th\u1ebf n\u00e0o.<\/div>\n<div><\/div>\n<div>\u0110\u1ed9t bi\u1ebfn g\u1ea1o Big Grain1 l\u00e0 m\u1ed9t \u0111\u1ed9t bi\u1ebfn chi\u1ebfm \u01b0u th\u1ebf v\u1edbi k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ef1c l\u1edbn. C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 ch\u1ee9ng minh r\u1eb1ng Big Grain1 m\u00e3 h\u00f3a m\u1ed9t protein m\u1edbi li\u00ean quan \u0111\u1ebfn m\u00e0ng huy\u1ebft t\u01b0\u01a1ng r\u1ea5t nh\u1ea1y c\u1ea3m v\u1edbi auxin. C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u c\u0169ng b\u00e1o c\u00e1o r\u1eb1ng s\u1ef1 v\u1eadn \u0111\u1ed9ng c\u1ee7a gien BG1 l\u00e0m t\u0103ng \u0111\u00e1ng k\u1ec3 k\u00edch th\u01b0\u1edbc h\u1ea1t v\u00e0 n\u0103ng su\u1ea5t t\u1ed5ng th\u1ec3 c\u1ee7a c\u00e2y tr\u1ed3ng.<\/div>\n<div><\/div>\n<div>C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u l\u01b0u \u00fd r\u1eb1ng BG1 \u0111\u01b0\u1ee3c \u0111\u1ecbnh v\u1ecb \u1edf m\u00e0ng t\u1ebf b\u00e0o, \u0111\u01b0\u1ee3c bi\u1ec3u hi\u1ec7n trong c\u00e1c m\u00f4 m\u1ea1ch c\u1ee7a c\u00e2y v\u00e0 \u0111\u01b0\u1ee3c t\u1ea1o n\u00ean b\u1eb1ng c\u00e1ch x\u1eed l\u00fd auxin. H\u01a1n n\u1eefa, c\u00e2y l\u00faa \u0111\u1ed9t bi\u1ebfn \u0111\u00e3 t\u0103ng s\u1ef1 nh\u1ea1y c\u1ea3m v\u1edbi auxin. Gi\u1ed1ng l\u00faa Big Grain1 cho th\u1ea5y s\u1ef1 t\u0103ng c\u01b0\u1eddng v\u1eadn chuy\u1ec3n ooc- xin, trong khi c\u00e1c bi\u1ebfn th\u1ec3 kh\u00f4ng c\u00f3 BG1 \u0111\u00e3 gi\u1ea3m qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n n\u00e0y. V\u00ec v\u1eady, r\u1ea5t c\u00f3 kh\u1ea3 n\u0103ng BG1 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c ki\u1ec3m so\u00e1t s\u1ef1 t\u0103ng tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n c\u00e2y tr\u1ed3ng th\u00f4ng qua \u0111i\u1ec1u ti\u1ebft qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n auxin.<\/div>\n<div><\/div>\n<div>C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 th\u00e0nh c\u00f4ng trong vi\u1ec7c thi\u1ebft l\u1eadp m\u1ed9t k\u1ebft n\u1ed1i gi\u1eefa qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n auxin v\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t. Ph\u00e1t hi\u1ec7n n\u00e0y d\u1eabn \u0111\u1ebfn c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf do c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 ch\u1ee9ng minh r\u1eb1ng vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n auxin c\u00f3 th\u1ec3 l\u00e0m t\u0103ng k\u00edch th\u01b0\u1edbc h\u1ea1t, \u0111i\u1ec1u n\u00e0y \u0111\u01b0a ra m\u1ed9t chi\u1ebfn l\u01b0\u1ee3c \u0111\u1ea7y h\u1ee9a h\u1eb9n cho vi\u1ec7c t\u0103ng s\u1ea3n l\u01b0\u1ee3ng \u0111\u1ec3 \u0111\u00e1p \u1ee9ng d\u00e2n s\u1ed1 ng\u00e0y c\u00e0ng t\u0103ng tr\u00ean to\u00e0n th\u1ebf gi\u1edbi.<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Gi\u1ed1ng l\u00faa \u0111\u1ed9t bi\u1ebfn Big Grain1 cho s\u1ea3n l\u01b0\u1ee3ng cao L\u00faa l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e2y l\u01b0\u01a1ng th\u1ef1c quan tr\u1ecdng nh\u1ea5t. V\u1edbi 4,3 t\u1ef7 ng\u01b0\u1eddi, ch\u00e2u \u00c1 chi\u1ebfm t\u1edbi 60% d\u00e2n s\u1ed1 th\u1ebf gi\u1edbi, v\u00ec v\u1eady kh\u00f4ng ng\u1ea1c nhi\u00ean r\u1eb1ng kho\u1ea3ng 90% c\u00e1c gi\u1ed1ng l\u00faa c\u1ee7a th\u1ebf gi\u1edbi \u0111\u01b0\u1ee3c tr\u1ed3ng tr\u00ean l\u1ee5c \u0111\u1ecba l\u1edbn nh\u1ea5t [&#8230;]\n","protected":false},"author":1,"featured_media":1224,"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\/6753"}],"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=6753"}],"version-history":[{"count":0,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts\/6753\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media\/1224"}],"wp:attachment":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media?parent=6753"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/categories?post=6753"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/tags?post=6753"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}