{"id":6604,"date":"2013-05-31T03:04:06","date_gmt":"2013-05-30T20:04:06","guid":{"rendered":"http:\/\/antoansinhhoc.vn\/?p=2062"},"modified":"2013-05-31T03:04:06","modified_gmt":"2013-05-30T20:04:06","slug":"anh-huong-cua-nhung-he-thong-quan-ly-co-dai-tren-quan-the-cac-loai-co-doi-voi-cay-trong-bien-doi-gen-khang-thuoc-glyphosate","status":"publish","type":"post","link":"https:\/\/nbca.gov.vn\/anh-huong-cua-nhung-he-thong-quan-ly-co-dai-tren-quan-the-cac-loai-co-doi-voi-cay-trong-bien-doi-gen-khang-thuoc-glyphosate\/","title":{"rendered":"\u1ea2nh h\u01b0\u1edfng c\u1ee7a nh\u1eefng h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd c\u1ecf d\u1ea1i tr\u00ean qu\u1ea7n th\u1ec3 c\u00e1c lo\u00e0i c\u1ecf \u0111\u1ed1i v\u1edbi c\u00e2y tr\u1ed3ng bi\u1ebfn \u0111\u1ed5i gen kh\u00e1ng thu\u1ed1c glyphosate"},"content":{"rendered":"
\n

Tr\u00ean t\u1ed5ng s\u1ed1 156 c\u00e1nh \u0111\u1ed3ng th\u00ed nghi\u1ec7m \u1edf s\u00e1u Ti\u1ec3u Bang c\u1ee7a Hoa K\u1ef3, ng\u01b0\u1eddi ta ti\u1ebfn h\u00e0nh nghi\u00ean c\u1ee9u\u00a0\u1ea3nh h\u01b0\u1edfng c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd c\u1ecf d\u1ea1i \u0111\u1ed1i v\u1edbi t\u00ednh tr\u1ea1ng kh\u00e1ng thu\u1ed1c c\u1ecf glyphosate ([glyphosate resistant<\/a>\u00a0(GR) crops] trong c\u1ea5u tr\u00fac qu\u1ea7n th\u1ec3 c\u1ecf d\u1ea1i c\u0169ng nh\u01b0 th\u00e0nh ph\u1ea7n lo\u00e0i.<\/p>\n

\u0110\u0103ng ng\u00e0y\u00a031-05-2013\u00a0trong chuy\u00ean m\u1ee5c\u00a0Tin th\u1ebf gi\u1edbi<\/a><\/p>\n

Glyphosate l\u00e0 thu\u1ed1c tr\u1eebc\u1ecf h\u1eadu n\u1ea9y m\u1ea7m (di\u1ec7t c\u1ecf sau khi c\u1ecf \u0111\u00e3 m\u1ecdc). Do c\u00f3 t\u00e1c \u0111\u1ed9ng l\u01b0u d\u1eabn n\u00ean sau khiphun, thu\u1ed1c s\u1ebd x\u00e2m nh\u1eadp v\u00e0o b\u00ean trong th\u00e2n qua b\u1ed9 l\u00e1 v\u00e0 c\u00e1c ph\u1ea7n xanh c\u1ee7a c\u00e2yc\u1ecf r\u1ed3i di chuy\u1ec3n \u0111\u1ebfn t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9 ph\u1eadn c\u1ee7a c\u00e2y (k\u1ec3 c\u1ea3 b\u1ed9 r\u1ec5 n\u1eb1m s\u00e2u d\u01b0\u1edbi \u0111\u1ea5tv\u00e0 th\u00e2n ng\u1ea7m), l\u00e0m cho th\u1ed1i c\u0103n h\u00e0nh v\u00e0 th\u00e2n ng\u1ea7m n\u00ean di\u1ec7t c\u1ecf r\u1ea5t tri\u1ec7t \u0111\u1ec3 v\u00e0h\u1eefu hi\u1ec7u trong vi\u1ec7c ng\u0103n c\u1ea3n c\u1ecf m\u1ecdc tr\u1edf l\u1ea1i. M\u1eb7c d\u00f9 t\u00e1c \u0111\u1ed9ng di\u1ec7t c\u1ecf c\u1ee7a thu\u1ed1cc\u00f3 h\u01a1i ch\u1eadm, sau khi x\u1ecbt thu\u1ed1c 4-5 ng\u00e0y (c\u1ecf h\u00e0ng ni\u00ean) ho\u1eb7c 7-10 ng\u00e0y (c\u1ecf \u0111ani\u00ean) m\u1edbi th\u1ea5y c\u1ecf ch\u1ebft, nh\u01b0ng hi\u1ec7u l\u1ef1c c\u1ee7a thu\u1ed1c l\u1ea1i k\u00e9o d\u00e0i t\u1edbi 2-3 th\u00e1ng.<\/p>\n

Kh\u00e1c v\u1edbi nh\u1eefng l\u1ecdaithu\u1ed1c tr\u1eeb c\u1ecf c\u00f3 t\u00ednh ch\u1ecdn l\u1ecdc, ch\u1ec9 di\u1ec7t c\u1ecf d\u1ea1i ch\u1ee9 kh\u00f4ng di\u1ec7t c\u00e2y tr\u1ed3ng (th\u00ed d\u1ee5nh\u01b0 thu\u1ed1c Sofit hay 2,4D…ch\u1ec9 di\u1ec7t c\u00e2y c\u1ecf ch\u1ee9 kh\u00f4ng di\u1ec7t c\u00e2y l\u00faa), th\u00ec thu\u1ed1cGlyphosate l\u00e0 thu\u1ed1c tr\u1eeb c\u1ecf kh\u00f4ng ch\u1ecdn l\u1ecdc (di\u1ec7t \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u l\u1ecdai c\u1ecf, k\u1ec3 c\u1ea3c\u00e2y tr\u1ed3ng n\u1ebfu thu\u1ed1c b\u00e1m \u0111\u01b0\u1ee3c v\u00e0o l\u00e1 ho\u1eb7c nh\u1eefng b\u1ed9 ph\u1eadn xanh c\u1ee7a c\u00e2y).<\/p>\n

Glyphosate l\u00e0 thu\u1ed1c c\u00f3ph\u1ed5 t\u00e1c \u0111\u1ed9ng r\u1ed9ng, di\u1ec7t tr\u1eeb \u0111\u01b0\u1ee3c h\u1ea7u h\u1ebft c\u00e1c l\u1ecdai c\u1ecf \u0111a ni\u00ean\u00a0 v\u00e0 c\u1ecf h\u00e0ngni\u00ean. \u0110\u1eb7c bi\u1ec7t l\u00e0 c\u00f3 hi\u1ec7u q\u1ee7a cao v\u00e0 k\u00e9o d\u00e0i \u0111\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 l\u1ecdai c\u1ecf kh\u00f3 tr\u1eeb nh\u01b0c\u1ecf tranh, c\u1ecf m\u1eafc c\u1ee1, lau s\u1eady, c\u1ecf \u1ed1ng,… v\u00ec th\u1ebf ng\u00f2ai vi\u1ec7c di\u1ec7t c\u1ecf cho c\u00e1c v\u01b0\u1eddnc\u00e2y, \u0111\u1ed3i c\u00e2y l\u00e2u n\u0103m nh\u01b0 c\u00e0 ph\u00ea, cao su…ho\u1eb7c phun di\u1ec7t c\u1ecf tr\u01b0\u1edbc khi gieotr\u1ed3ng c\u00e2y ng\u1eafn ng\u00e0y, thu\u1ed1c c\u00f2n c\u00f3 kh\u1ea3 n\u0103ng ph\u00e1t hoang cho nh\u1eefng di\u1ec7n t\u00edch \u0111\u1ea5tkhai hoang, \u0111\u1ea5t kh\u00f4ng canh t\u00e1c, b\u1edd m\u01b0\u01a1ng b\u1edd ru\u1ed9ng, ven c\u00e1c c\u00f4ng l\u1ed9…<\/p>\n

T\u1ea1i Hoa K\u1ef3, thu\u1ed1c tr\u1eeb c\u1ecf glyphosate \u0111\u01b0\u1ee3c s\u1eedd\u1ee5ng t\u1eeb l\u00e2u nay v\u00e0 r\u1ea5t ph\u1ed5 bi\u1ebfn. Tuy nhi\u00ean, do qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng l\u00e2u d\u00e0i n\u00eautr\u00ean, d\u1eabn \u0111\u1ebfn thu\u1ed1c tr\u1eeb c\u1ecf kh\u00f4ng c\u00f2n nhi\u1ec1u t\u00e1c d\u1ee5ng \u0111\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 lo\u1ea1i c\u1ecf d\u1ea1i.Do \u0111\u00f3, c\u00e1c nh\u00e0 khoa h\u1ecdc t\u1ea1i Hoa K\u1ef3 \u0111\u00e3 ti\u1ebfn h\u00e0nh nghi\u00ean c\u1ee9u\u00a0\u1ea3nh h\u01b0\u1edfng c\u1ee7ac\u00e1c h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd c\u1ecf d\u1ea1i \u0111\u1ed1i v\u1edbi t\u00ednh tr\u1ea1ng kh\u00e1ng thu\u1ed1c c\u1ecf glyphosate ([glyphosate resistant<\/a>\u00a0(GR) crops] trong c\u1ea5u tr\u00fac qu\u1ea7n th\u1ec3 c\u1ecf d\u1ea1i c\u0169ngnh\u01b0 th\u00e0nh ph\u1ea7n c\u1ee7a ch\u00fang tr\u00ean t\u1ed5ng s\u1ed1 156 c\u00e1nh\u0111\u1ed3ng th\u00ed nghi\u1ec7m \u1edf s\u00e1u Ti\u1ec3u Bang c\u1ee7a Hoa K\u1ef3.<\/p>\n

Ru\u1ed9ng \u0111\u01b0\u1ee3c ch\u1ecdn ph\u1ea3i th\u1ec3 hi\u1ec7n ba h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd c\u1ecf d\u1ea1i:<\/p>\n

    \n
  1. a) c\u00e2y tr\u1ed3ng GR \u0111\u1ed9c canh li\u00ean t\u1ee5c;<\/li>\n
  2. b) c\u00e2y tr\u1ed3ng GR lu\u00e2n canh hai v\u1ee5; v\u00e0<\/li>\n
  3. c) c\u00e2y tr\u1ed3ng GR lu\u00e2n canh v\u1edbi c\u00e2y tr\u1ed3ng kh\u00f4ng ph\u1ea3i GR.<\/li>\n<\/ol>\n

    M\u1eadt \u0111\u1ed9 qu\u1ea7n th\u1ec3 c\u00e1c lo\u00e0i c\u1ecf d\u1ea1i, lo\u00e0i nhi\u1ec1u nh\u1ea5t v\u00e0 s\u1ef1 \u0111a d\u1ea1ng c\u1ee7alo\u00e0i c\u1ecf d\u1ea1i \u0111\u01b0\u1ee3c ph\u00e2n t\u00edch theo ph\u01b0\u01a1ng ph\u00e1p \u201cmixed models\u201d \u0111\u1ec3 xem x\u00e9t \u1ea3nh h\u01b0\u1edfngt\u00f9y theo n\u0103m, v\u1ecb tr\u00ed \u0111\u1ecba l\u00fd, v\u00e0 h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd c\u1ecf d\u1ea1i.<\/p>\n

    C\u00f3 t\u1ea5t c\u1ea3 329 lo\u00e0i c\u1ecf \u0111\u01b0\u1ee3c \u0111\u1ecbnh danh t\u1ea1i c\u00e1c \u0111i\u1ec3m th\u00ed nghi\u1ec7m trongth\u1eddi k\u1ef3 nghi\u00ean c\u1ee9u. Qu\u1ea7n th\u1ec3 c\u1ecf d\u1ea1i \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n l\u00e0 t\u01b0\u01a1ng quan m\u1ea1nh m\u1ebd v\u1edbi v\u1ecbtr\u00ed \u0111\u1ecba l\u00fd. H\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd c\u1ecf d\u1ea1i \u1ea3nh h\u01b0\u1edfng gi\u1ed1ng nhau v\u1ec1 qu\u1ea7n th\u1ec3 c\u1ecf d\u1ea1ith\u00f4ng qua t\u01b0\u01a1ng t\u00e1c v\u1edbi m\u00f4i tr\u01b0\u1eddng, kh\u00f4ng kh\u00f4ng c\u00f3 theo n\u0103m. C\u00e1c h\u1ec7 th\u1ed1ng qu\u1ea3nl\u00fd c\u1ecf d\u1ea1i theo ch\u1ebf \u0111\u1ed9 lu\u00e2n canh v\u00e0 lu\u00e2n phi\u00ean tr\u1ed3ng gi\u1eefa c\u00e2y GR v\u00e0 c\u00e2y kh\u00f4ng GRl\u00e0m gi\u1ea3m m\u1eadt \u0111\u1ed9 c\u1ecf d\u1ea1i \u0111\u00e1ng k\u1ec3 v\u00e0 gi\u1ea3m \u0111a d\u1ea1ng lo\u00e0i. \u1ea2nh h\u01b0\u1edfng c\u1ee7a lu\u00e2n canhth\u1ec3 hi\u1ec7n r\u1ea5t kh\u00e1c nhau t\u00f9y theo v\u1ecb tr\u00ed \u0111\u1ecba l\u00fd.<\/p>\n

    Theo nghi\u00ean c\u1ee9u n\u00e0y, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 k\u1ebft lu\u1eadnr\u1eb1ng, ng\u01b0\u1eddi ta c\u1ea7n ph\u1ea3i c\u00f3 nh\u1eefng h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd c\u1ecf d\u1ea1i th\u00edch \u1ee9ng \u0111\u1ec3 gi\u00fap chogi\u1ed1ng c\u00e2y tr\u1ed3ng bi\u1ebfn \u0111\u1ed5i gen duy tr\u00ec t\u00ednh tr\u1ea1ng c\u1ee7a ch\u00fang trong c\u00e1ch qu\u1ea3n l\u00fd \u0111ad\u1ea1ng c\u1ecf d\u1ea1i cao, trong khi \u0111\u00f3 s\u1ef1 c\u1ea1nh tranh gi\u1eefa c\u00e2y tr\u1ed3ng v\u00e0 c\u1ecf d\u1ea1i gi\u1ea3m, t\u1ed1i\u0111a h\u00f3a \u0111\u01b0\u1ee3c n\u0103ng su\u1ea5t.<\/p>\n

     <\/p>\n

    Xem b\u00e0i vi\u1ebft tr\u00ean t\u1ea1p ch\u00ed\u00a0Applied Vegetation Science<\/em>,\u00a0May 14, 2013<\/em>: \u00a0http:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/avsc.12039\/abstract?deniedAccessCustomisedMessage=&userIsAuthenticated=false<\/a>.<\/p>\n

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

    Tr\u00ean t\u1ed5ng s\u1ed1 156 c\u00e1nh \u0111\u1ed3ng th\u00ed nghi\u1ec7m \u1edf s\u00e1u Ti\u1ec3u Bang c\u1ee7a Hoa K\u1ef3, ng\u01b0\u1eddi ta ti\u1ebfn h\u00e0nh nghi\u00ean c\u1ee9u\u00a0\u1ea3nh h\u01b0\u1edfng c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd c\u1ecf d\u1ea1i \u0111\u1ed1i v\u1edbi t\u00ednh tr\u1ea1ng kh\u00e1ng thu\u1ed1c c\u1ecf glyphosate ([glyphosate resistant\u00a0(GR) crops] trong c\u1ea5u tr\u00fac qu\u1ea7n th\u1ec3 c\u1ecf d\u1ea1i c\u0169ng nh\u01b0 th\u00e0nh ph\u1ea7n lo\u00e0i. \u0110\u0103ng ng\u00e0y\u00a031-05-2013\u00a0trong […]\n","protected":false},"author":1,"featured_media":6434,"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\/6604"}],"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=6604"}],"version-history":[{"count":0,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/posts\/6604\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media\/6434"}],"wp:attachment":[{"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/media?parent=6604"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/categories?post=6604"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbca.gov.vn\/wp-json\/wp\/v2\/tags?post=6604"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}