{"id":8846,"date":"2009-03-24T04:32:51","date_gmt":"2009-03-23T21:32:51","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2009\/03\/thu-nghiem-su-dung-ong-mica-trong-lai-giong-thong\/"},"modified":"2019-09-24T10:50:51","modified_gmt":"2019-09-24T03:50:51","slug":"thu-nghiem-su-dung-ong-mica-trong-lai-giong-thong","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/thu-nghiem-su-dung-ong-mica-trong-lai-giong-thong\/","title":{"rendered":"Th\u1eed nghi\u1ec7m s\u1eed d\u1ee5ng \u1ed1ng mica trong lai gi\u1ed1ng Th\u00f4ng"},"content":{"rendered":"

Nguy\u1ec5n Minh Ch\u00ed, L\u00ea V\u0103n Thu\u1eadt, \u0110\u1ed7 Minh Hi\u1ec3n<\/em><\/strong><\/p>\n

Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em><\/p>\n

Nghi\u00ean c\u1ee9u lai gi\u1ed1ng cho c\u00e1c lo\u00e0i Th\u00f4ng \u0111\u00e3 thu \u0111\u01b0\u1ee3c nhi\u1ec1u th\u00e0nh c\u00f4ng, \u0111\u1eb7c bi\u1ec7t \u1edf c\u00e1c n\u01b0\u1edbc Ch\u00e2u \u00c2u c\u00f3 n\u1ec1n l\u00e2m nghi\u1ec7p ph\u00e1t tri\u1ec3n. C\u00e1c nghi\u00ean c\u1ee9u n\u00e0y r\u1ea5t \u0111a d\u1ea1ng t\u1eeb th\u1eed nghi\u1ec7m lai kh\u00e1c lo\u00e0i, th\u1eddi \u0111i\u1ec3m n\u00f3n ti\u1ebfp nh\u1eadn h\u1ea1t ph\u1ea5n \u0111\u1ebfn nghi\u00ean c\u1ee9u s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u c\u00e1ch ly trong lai gi\u1ed1ng… C\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng th\u00e0nh c\u00f4ng l\u00e0 t\u00fai PBS, \u1ed1ng mica, bao Lawson. M\u1ed7i lo\u1ea1i v\u1eadt li\u1ec7u \u0111\u1ec1u c\u00f3 \u01b0u nh\u01b0\u1ee3c \u0111i\u1ec3m, do v\u1eady tu\u1ef3 lo\u00e0i v\u00e0 \u0111i\u1ec1u ki\u1ec7n ho\u00e0n c\u1ea3nh m\u00e0 \u1ee9ng d\u1ee5ng cho th\u00edch h\u1ee3p.<\/p>\n

Giai \u0111o\u1ea1n 1996 \u2014 2000, Trung t\u00e2m Nghi\u00ean c\u1ee9u Gi\u1ed1ng c\u00e2y r\u1eebng b\u01b0\u1edbc \u0111\u1ea7u ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m \u1ea3nh h\u01b0\u1edfng c\u1ee7a c\u00e1c lo\u1ea1i bao c\u00e1ch ly trong lai gi\u1ed1ng th\u00f4ng m\u1ed9t s\u1ed1 lo\u00e0i th\u00f4ng. C\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0 t\u00fai Hydrazel l\u00e0m b\u1eb1ng nh\u1ef1a c\u1ee9ng v\u00e0 tho\u00e1ng, t\u00fai Lawson nh\u1eadp t\u1eeb Thu\u1ef5 \u0110i\u1ec3n, t\u00fai PBS nh\u1eadp t\u1eeb Anh, t\u00fai bao xi m\u0103ng l\u00e0m b\u1eb1ng v\u1ecf bao xi m\u0103ng \u1edf Vi\u1ec7t Nam, t\u00fai gi\u1ea5y b\u00f3ng m\u1edd l\u00e0m b\u1eb1ng gi\u1ea5y b\u00f3ng m\u1edd. Sau 6 th\u00e1ng cho th\u1ea5y t\u1ec9 l\u1ec7 n\u00f3n \u0111\u01b0\u1ee3c th\u1ee5 ph\u1ea5n v\u00e0 kh\u00f4ng b\u1ecb t\u1ed5n th\u01b0\u01a1ng \u0111\u1ea1t t\u1eeb 35,2% \u0111\u1ebfn 62,8% khi d\u00f9ng c\u00e1c lo\u1ea1i bao c\u00e1ch ly. \u0110\u00e2y l\u00e0 k\u1ebft qu\u1ea3 kh\u00f4ng cao do n\u00f3n th\u01b0\u1eddng b\u1ecb t\u1ed5n th\u01b0\u01a1ng khi ch\u1ee5p bao c\u00e1ch ly. \u0110\u1ec3 kh\u1eafc ph\u1ee5c hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y \u0111\u1ec1 t\u00e0i “Nghi\u00ean c\u1ee9u lai gi\u1ed1ng m\u1ed9t s\u1ed1 lo\u00e0i b\u1ea1ch \u0111\u00e0n, keo, tr\u00e0m v\u00e0 th\u00f4ng” \u0111\u00e3 ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m d\u00f9ng \u1ed1ng mica l\u00e0m v\u1eadt li\u1ec7u c\u00e1ch ly trong lai gi\u1ed1ng Th\u00f4ng. B\u00e0i b\u00e1o n\u00e0y tr\u00ecnh b\u00e0y m\u1ed9t s\u1ed1 k\u1ebft qu\u1ea3 \u0111\u1ea1t \u0111\u01b0\u1ee3c trong nghi\u00ean c\u1ee9u th\u1eed nghi\u1ec7m s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u c\u00e1ch ly.<\/p>\n

1. V\u1eadt li\u1ec7u v\u00e0 ph\u01b0\u01a1ng ph\u00e1p nghi\u00ean c\u1ee9u<\/strong><\/p>\n

1.1. V\u1eadt li\u1ec7u nghi\u00ean c\u1ee9u<\/strong><\/p>\n

* V\u1eadt li\u1ec7u lai gi\u1ed1ng<\/em><\/strong><\/p>\n

– C\u00e2y m\u1eb9: 4 d\u00f2ng th\u00f4ng nh\u1ef1a thu\u1ed9c v\u01b0\u1eddn gi\u1ed1ng th\u00f4ng nh\u1ef1a t\u1ea1i Xu\u00e2n Khanh \u2014 Ba V\u00ec<\/p>\n

– C\u00e2y b\u1ed1: 3 ph\u1ea5n Th\u00f4ng carib\u00ea thu t\u1ea1i Ba V\u00ec v\u00e0 1 ph\u1ea5n th\u00f4ng carib\u00ea thu t\u1ea1i \u0110\u1ea1i L\u1ea3i<\/p>\n

* V\u1eadt li\u1ec7u c\u00e1ch ly<\/em><\/strong><\/p>\n

– Gi\u1ea5y mica m\u1ecfng trong su\u1ed1t \u0111\u01b0\u1ee3c cu\u1ed9n tr\u00f2n v\u00e0 b\u1ea5m ghim \u0111\u1ecbnh h\u00ecnh th\u00e0nh c\u00e1c \u1ed1ng c\u00f3 k\u00edch th\u01b0\u1edbc d\u00e0i 10 \u2014 12 cm \u0111\u01b0\u1eddng k\u00ednh 2 \u2014 3 cm.<\/p>\n

– Bao PBS\u0111\u01b0\u1ee3c nh\u1eadp kh\u1ea9u t\u1eeb Anh<\/p>\n

1.2. Ph\u01b0\u01a1ng ph\u00e1p nghi\u00ean c\u1ee9u<\/em><\/strong><\/p>\n

* Th\u1eddi \u0111i\u1ec3m c\u1ea7n c\u00e1ch ly<\/em><\/strong><\/p>\n

– Khi th\u1ea5y n\u00f3n c\u00e1i \u0111\u00e3 ph\u00e1t tri\u1ec3n nh\u01b0ng v\u1eabn ch\u01b0a nh\u00f4 ra kh\u1ecfi l\u1edbp v\u1ea9y b\u1eafc th\u00ec ti\u1ebfn h\u00e0nh ch\u1ee5p v\u1eadt li\u1ec7u c\u00e1ch ly.<\/p>\n

* Th\u1ee5 ph\u1ea5n<\/em><\/strong><\/p>\n

– Khi n\u00f3n c\u00e1i \u0111\u00e3 nh\u00f4 ra kh\u1ecfi l\u1edbp v\u1ea9y b\u1eafc th\u00ec ti\u1ebfn h\u00e0nh phun ph\u1ea5n. Phun \u0111\u1ecbnh k\u1ef3 hai ng\u00e0y 1 l\u1ea7n \u0111\u1ebfn khi l\u00e1 no\u00e3n m\u1ecdc th\u00e0nh m\u1ed9t g\u00f3c vu\u00f4ng v\u1edbi tr\u1ee5c n\u00f3n th\u00ec d\u1eebng. Khi \u0111\u00f3 kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c l\u00e1 no\u00e3n l\u1edbn nh\u1ea5t v\u00e0 c\u0169ng ch\u00ednh l\u00e0 th\u1eddi \u0111i\u1ec3m th\u1ee5 ph\u1ea5n t\u1ed1t nh\u1ea5t.<\/p>\n

– Khi quan s\u00e1t th\u1ea5y c\u00e1c l\u00e1 no\u00e3n c\u1ee7a c\u00e1c n\u00f3n c\u00e1i d\u00e0y l\u00ean v\u00e0 kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c l\u00e1 no\u00e3n \u0111\u00e3 ho\u00e0n to\u00e0n l\u1ea5p k\u00edn kho\u1ea3ng tr\u1ed1ng th\u00ec ti\u1ebfn h\u00e0nh th\u00e1o v\u1eadt li\u1ec7u c\u00e1ch ly<\/p>\n

* Ki\u1ec3m k\u00ea t\u1ef7 l\u1ec7 \u0111\u1eadu qu\u1ea3<\/em><\/strong><\/p>\n

– Ki\u1ec3m k\u00ea ngay sau khi th\u00e1o bao<\/p>\n

– Ki\u1ec3m k\u00ea khi thu qu\u1ea3<\/p>\n

2. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u v\u00e0 th\u1ea3o lu\u1eadn<\/strong><\/p>\n

K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho \u1edf b\u1ea3ng 1<\/p>\n","protected":false},"excerpt":{"rendered":"

Nghiên c\u1ee9u lai gi\u1ed1ng cho các loài Thông \u0111ã thu \u0111\u01b0\u1ee3c nhi\u1ec1u thành công, \u0111\u1eb7c bi\u1ec7t \u1edf các n\u01b0\u1edbc Châu Âu có n\u1ec1n lâm nghi\u1ec7p phát tri\u1ec3n. Các nghiên c\u1ee9u này r\u1ea5t \u0111a d\u1ea1ng t\u1eeb th\u1eed nghi\u1ec7m lai khác loài, th\u1eddi \u0111i\u1ec3m nón ti\u1ebfp nh\u1eadn h\u1ea1t ph\u1ea5n \u0111\u1ebfn nghiên c\u1ee9u s\u1eed d\u1ee5ng các lo\u1ea1i v\u1eadt li\u1ec7u cách ly trong lai gi\u1ed1ng… Các lo\u1ea1i v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng thành công là túi PBS, \u1ed1ng mica, bao Lawson. M\u1ed7i lo\u1ea1i v\u1eadt li\u1ec7u \u0111\u1ec1u có \u01b0u nh\u01b0\u1ee3c \u0111i\u1ec3m, do v\u1eady tu\u1ef3 loài và \u0111i\u1ec1u ki\u1ec7n hoàn c\u1ea3nh mà \u1ee9ng d\u1ee5ng cho thích h\u1ee3p.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[18],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8846"}],"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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=8846"}],"version-history":[{"count":2,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8846\/revisions"}],"predecessor-version":[{"id":19062,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8846\/revisions\/19062"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=8846"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=8846"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=8846"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}