{"id":6801,"date":"2017-11-25T08:55:51","date_gmt":"2017-11-25T01:55:51","guid":{"rendered":"http:\/\/antoansinhhoc.vn\/?p=4904"},"modified":"2017-11-25T08:55:51","modified_gmt":"2017-11-25T01:55:51","slug":"15-nam-va-loi-ich-cay-bong-ir-bt-o-an-do","status":"publish","type":"post","link":"https:\/\/nbca.gov.vn\/15-nam-va-loi-ich-cay-bong-ir-bt-o-an-do\/","title":{"rendered":"15 n\u0103m v\u00e0 l\u1ee3i \u00edch c\u00e2y B\u00f4ng (IR, Bt) \u1edf \u1ea4n \u0111\u1ed9"},"content":{"rendered":"<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif;\">\u1ea4n \u0110\u1ed9, l\u1ea7n \u0111\u1ea7u ti\u00ean trong 14 n\u0103m tr\u1ed3ng c\u00e2y c\u1ecd ch\u1ed1ng s\u00e2u b\u1ec7nh (IR, Bt) (t\u1eeb n\u0103m 2002), \u0111\u00e3 gi\u1ea3m \u0111\u01b0\u1ee3c di\u1ec7n t\u00edch tr\u1ed3ng 0,8 tri\u1ec7u ha, t\u1eeb 11,6 tri\u1ec7u ha n\u0103m 2015 l\u00ean 10,8 tri\u1ec7u ha v\u00e0o n\u0103m 2016.\u00a0<\/span><span style=\"font-family: 'times new roman', times, serif;\">T\u1ef7 l\u1ec7\u00a0ch\u1ea5p nh\u1eadn\u00a0n\u0103m 2016 t\u0103ng l\u00ean 96%, cao h\u01a1n 95% so v\u1edbi n\u0103m 2015, ph\u00e2n b\u1ed1 \u0111\u1ec1u trong m\u01b0\u1eddi b\u00f4ng ph\u00e1t tri\u1ec3n ti\u1ec3u bang. Ng\u01b0\u1eddi ta \u01b0\u1edbc t\u00ednh c\u00f3 kho\u1ea3ng 7,2 tri\u1ec7u n\u00f4ng d\u00e2n tr\u1ed3ng b\u00f4ng IR trong n\u0103m 2016, \u00edt h\u01a1n 7,7 tri\u1ec7u v\u00e0o n\u0103m 2015. Vi\u1ec7c \u00e1p d\u1ee5ng nhanh b\u00f4ng IR \u0111\u00e3 th\u00fac \u0111\u1ea9y s\u1ef1 ph\u00e1t tri\u1ec3n s\u1ea3n l\u01b0\u1ee3ng b\u00f4ng l\u00ean 39 tri\u1ec7u ki\u1ec7n trong n\u0103m 2014-15, xu\u1ed1ng c\u00f2n 33,8 tri\u1ec7u v\u00e0o n\u0103m 2015 do s\u1ef1 l\u00e2y lan n\u1eb7ng c\u1ee7a vi r\u00fat\u00a0xo\u0103n\u00a0l\u00e1 c\u00e2y (CLCV) \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf c\u00e1c v\u00f9ng tr\u1ed3ng b\u00f4ng ph\u00eda B\u1eafc bao g\u1ed3m Haryana v\u00e0 Punjab, v\u00e0 \u0111\u00e3\u00a0<\/span><span style=\"font-family: 'times new roman', times, serif;\">m\u1ed9t l\u1ea7n n\u1eefa \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ed9t xu h\u01b0\u1edbng \u0111i l\u00ean trong n\u0103m 2016 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c ti\u00eau c\u1ee7a 35 tri\u1ec7u ki\u1ec7n.\u00a0<a href=\"https:\/\/nbca.gov.vn\/wp-content\/uploads\/2018\/03\/bieu-do-15-nam-An-do.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-4909 alignright\" src=\"https:\/\/nbca.gov.vn\/wp-content\/uploads\/2018\/03\/bieu-do-15-nam-An-do.jpg\" alt=\"bieu do 15 nam An do\" width=\"270\" height=\"329\" \/><\/a><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif;\">Th\u1ecb tr\u01b0\u1eddng b\u00f4ng \u0111ang b\u1ecb \u1ea4n \u0110\u1ed9 v\u00e0 Trung Qu\u1ed1c chi ph\u1ed1i m\u1ea1nh m\u1ebd c\u1ea3 v\u1ec1 m\u1eb7t s\u1ea3n xu\u1ea5t v\u00e0 ti\u00eau d\u00f9ng. C\u00e1c n\u01b0\u1edbc n\u00e0y s\u1ea3n xu\u1ea5t v\u00e0 ti\u00eau th\u1ee5 tr\u00ean 55% t\u1ed5ng l\u01b0\u1ee3ng d\u1ea7u h\u1ea1t b\u00f4ng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t trong giai \u0111o\u1ea1n 2015-2016. S\u1ef1 th\u1ed1ng tr\u1ecb n\u00e0y ch\u1ee7 y\u1ebfu l\u00e0 do l\u01b0\u1ee3ng b\u00f4ng l\u1edbn tr\u1ed3ng trong khu v\u1ef1c. Nh\u01b0 v\u1eady, trong m\u01b0\u1eddi l\u0103m n\u0103m qua, 2002 \u0111\u1ebfn n\u0103m 2016, h\u1ea1t b\u00f4ng \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t ngu\u1ed3n cung c\u1ea5p d\u1ea7u quan tr\u1ecdng \u1edf \u1ea4n \u0110\u1ed9 do s\u1ea3n xu\u1ea5t\u00a0<\/span><span style=\"font-family: 'times new roman', times, serif;\">c\u1ee7a d\u1ea7u b\u1eafp Bt t\u0103ng ba l\u1ea7n t\u1eeb 0,46 tri\u1ec7u t\u1ea5n trong n\u0103m 2002-03 l\u00ean 1,50 tri\u1ec7u t\u1ea5n v\u00e0o n\u0103m 2016-17. \u0110\u00e1ng ch\u00fa \u00fd, d\u1ea7u h\u1ea1t b\u00f4ng Bt \u0111\u00e3 \u0111\u00f3ng g\u00f3p 1,5 tri\u1ec7u t\u1ea5n v\u1edbi t\u1ed5ng s\u1ea3n l\u01b0\u1ee3ng c\u1ee7a ~ 8 tri\u1ec7u t\u1ea5n d\u1ea7u \u0103n \u0111\u01b0\u1ee3c t\u1eeb t\u1ea5t c\u1ea3 c\u00e1c ngu\u1ed3n trong n\u01b0\u1edbc, bao g\u1ed3m c\u1ea3 d\u1ea7u b\u00f4ng t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 15% t\u1ed5ng s\u1ea3n l\u01b0\u1ee3ng d\u1ea7u \u0103n trong n\u01b0\u1edbc trong 2016-17.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif;\">V\u00e0o n\u0103m 2016, 7,2 tri\u1ec7u ng\u01b0\u1eddi tr\u1ed3ng b\u00f4ng \u0111\u00e3 \u00e1p d\u1ee5ng b\u00f4ng IR cho th\u1ea5y 96% trong s\u1ed1 11,2 tri\u1ec7u ha \u1edf \u1ea4n \u0110\u1ed9. Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, n\u00f4ng d\u00e2n t\u0103ng m\u1eadt \u0111\u1ed9 tr\u1ed3ng b\u00f4ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n t\u01b0\u1edbi v\u00e0 b\u00e1n t\u01b0\u1edbi, l\u00e0m t\u0103ng n\u0103ng su\u1ea5t b\u00f4ng tr\u00ean m\u1ed9t hecta \u0111\u00e1ng k\u1ec3 tr\u00ean kh\u1eafp c\u00e1c bang.\u00a0\u00a0Q<\/span><span style=\"font-family: 'times new roman', times, serif;\">u\u1ed1c gia n\u00e0y \u0111\u00e3 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 g\u1ea7n gi\u1ed1ng v\u1edbi vi\u1ec7c lai t\u1ea1o c\u00e1c gi\u1ed1ng b\u00f4ng Bollgard-1, g\u1ea7n nh\u01b0 \u0111\u00e3 \u0111\u01b0\u1ee3c thay th\u1ebf b\u1eb1ng c\u00e1c gi\u1ed1ng b\u00f4ng lai Bollgard II (BG-IIT) \u0111\u01b0\u1ee3c \u0111\u01b0a ra v\u00e0o n\u0103m 2006. Gi\u1ed1ng lai IR lai\u00a0<\/span><span style=\"font-family: 'times new roman', times, serif;\">b\u1ea3o v\u1ec7 <em>Spodoptera<\/em> (m\u1ed9t con s\u00e2u b\u1ecd c\u00e1nh c\u1ee9ng \u0103n l\u00e1) \u0111\u1ed3ng th\u1eddi b\u1ea3o v\u1ec7 c\u00e2y b\u00f4ng t\u1eeb s\u00e2u \u0111\u1ee5c qu\u1ea3 Hoa K\u1ef3, s\u00e2u \u0111\u1ee5c qu\u1ea3 b\u00f4ng v\u00e0 s\u00e2u \u0111\u1ee5c t\u00e1n. \u0110\u00e3 c\u00f3 th\u00f4ng b\u00e1o r\u1eb1ng nh\u1eefng ng\u01b0\u1eddi tr\u1ed3ng b\u00f4ng h\u1ed3ng IR t\u0103ng g\u1ea5p \u0111\u00f4i thu \u0111\u01b0\u1ee3c l\u1ee3i nhu\u1eadn cao h\u01a1n th\u00f4ng qua ti\u1ebft ki\u1ec7m chi ph\u00ed li\u00ean quan \u0111\u1ebfn vi\u1ec7c \u00edt phun thu\u1ed1c<em> Spodoptera<\/em> c\u0169ng nh\u01b0 t\u0103ng s\u1ea3n l\u01b0\u1ee3ng\u00a0<\/span><span style=\"font-family: 'times new roman', times, serif;\">8-10% so v\u1edbi b\u00f4ng lai IR \u0111\u01a1n. Qua nhi\u1ec1u n\u0103m, m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn b\u00f4ng lai IR (ch\u1ee7 y\u1ebfu l\u00e0 <em>G. hirsutum x G. hirsutum<\/em>) th\u00edch h\u1ee3p cho c\u00e1c v\u00f9ng b\u00f4ng n\u00f4ng nhi\u1ec7t \u0111\u1edbi kh\u00e1c nhau th\u00fac \u0111\u1ea9y vi\u1ec7c \u00e1p d\u1ee5ng c\u00f4ng ngh\u1ec7 lai t\u1ea1o b\u00f4ng h\u1ed3ng ngo\u1ea1i \u1edf \u1ea4n \u0110\u1ed9. Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, c\u00e1c b\u00f4ng lai IR m\u1edbi bao g\u1ed3m <em>G. hirsutum x G. barbadense<\/em> \u0111\u00e3\u00a0<\/span><span style=\"font-family: 'times new roman', times, serif;\">\u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t \u0111\u1ec3 tr\u1ed3ng tr\u1ecdt.\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif;\">\u01af\u1edbc t\u00ednh c\u1ee7a Brookes v\u00e0 Barfoot (2017, Forthcoming) ch\u1ec9 ra r\u1eb1ng \u1ea4n \u0110\u1ed9 \u0111\u00e3 t\u0103ng thu nh\u1eadp t\u1eeb b\u00f4ng IR cho 19,6 t\u1ef7 USD trong giai \u0111o\u1ea1n 13 n\u0103m 2002-2015 v\u00e0 1,3 t\u1ef7 USD v\u00e0o n\u0103m 2015.<\/span><\/p>\n<p style=\"text-align: right;\"><span style=\"font-family: 'times new roman', times, serif;\"><em>Ngu\u1ed3n: isaaa.org<\/em><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u1ea4n \u0110\u1ed9, l\u1ea7n \u0111\u1ea7u ti\u00ean trong 14 n\u0103m tr\u1ed3ng c\u00e2y c\u1ecd ch\u1ed1ng s\u00e2u b\u1ec7nh (IR, Bt) (t\u1eeb n\u0103m 2002), \u0111\u00e3 gi\u1ea3m \u0111\u01b0\u1ee3c di\u1ec7n t\u00edch tr\u1ed3ng 0,8 tri\u1ec7u ha, t\u1eeb 11,6 tri\u1ec7u ha n\u0103m 2015 l\u00ean 10,8 tri\u1ec7u ha v\u00e0o n\u0103m 2016.\u00a0T\u1ef7 l\u1ec7\u00a0ch\u1ea5p nh\u1eadn\u00a0n\u0103m 2016 t\u0103ng l\u00ean 96%, cao h\u01a1n 95% so v\u1edbi n\u0103m 2015, ph\u00e2n [&#8230;]\n","protected":false},"author":1,"featured_media":6523,"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\/6801"}],"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=6801"}],"version-history":[{"count":0,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts\/6801\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media\/6523"}],"wp:attachment":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media?parent=6801"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/categories?post=6801"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/tags?post=6801"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}