{"id":9491,"date":"2010-12-27T02:36:32","date_gmt":"2010-12-26T19:36:32","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2010\/12\/nghien-cuu-chon-giong-co-nang-suat-chat-luong-cao-cho-mot-so-loai-cay-trong-rung-chu-yeu-giai-doan-2001-2005\/"},"modified":"2013-10-06T09:02:08","modified_gmt":"2013-10-06T02:02:08","slug":"nghien-cuu-chon-giong-co-nang-suat-chat-luong-cao-cho-mot-so-loai-cay-trong-rung-chu-yeu-giai-doan-2001-2005","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/nghien-cuu-chon-giong-co-nang-suat-chat-luong-cao-cho-mot-so-loai-cay-trong-rung-chu-yeu-giai-doan-2001-2005\/","title":{"rendered":"Nghi\u00ean c\u1ee9u ch\u1ecdn gi\u1ed1ng c\u00f3 n\u0103ng su\u1ea5t, ch\u1ea5t l\u01b0\u1ee3ng cao cho m\u1ed9t s\u1ed1 lo\u00e0i c\u00e2y tr\u1ed3ng r\u1eebng ch\u1ee7 y\u1ebfu giai \u0111o\u1ea1n 2001-2005"},"content":{"rendered":"

H\u00e0 Huy Th\u1ecbnh, L\u00ea \u0110\u00ecnh Kh\u1ea3, Nguy\u1ec5n \u0110\u1ee9c Ki\u00ean, Ph\u00ed H\u1ed3ng H\u1ea3i<\/strong> <\/p>\n

Trung t\u00e2m Nghi\u00ean c\u1ee9u Gi\u1ed1ng c\u00e2y r\u1eebng<\/em> <\/p>\n

\u0110o\u00e0n Th\u1ecb Mai, Tr\u1ea7n H\u1ed3 Quang<\/strong> <\/p>\n

Trung t\u00e2m C\u00f4ng ngh\u1ec7 Sinh h\u1ecdc L\u00e2m nghi\u1ec7p<\/em> <\/p>\n

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

\nI. \u0110\u1eb6T V\u1ea4N \u0110\u1ec0
\n<\/h1>\n

C\u00e1c kh\u1ea3o nghi\u1ec7m lo\u00e0i\/xu\u1ea5t x\u1ee9 t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u1ed3ng b\u1ed9 v\u00e0 c\u00f3 h\u1ec7 th\u1ed1ng nh\u1eb1m x\u00e1c \u0111\u1ecbnh c\u00e1c lo\u00e0i\/xu\u1ea5t x\u1ee9 c\u00f3 tri\u1ec3n v\u1ecdng cho tr\u1ed3ng r\u1eebng t\u1ea1i Vi\u1ec7t Nam \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n t\u1eeb n\u0103m \u0111\u1ea7u th\u1eadp k\u1ec9 80 c\u1ee7a th\u1ebf k\u1ec9 tr\u01b0\u1edbc. T\u1eeb \u0111\u00f3 \u0111\u1ebfn nay, nhi\u1ec1u nghi\u00ean c\u1ee9u \u0111\u00e3 \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh nh\u1eb1m c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng di truy\u1ec1n c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u tr\u1ed3ng r\u1eebng \u1edf m\u1ee9c \u0111\u1ed9 v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 cao h\u01a1n th\u00f4ng qua vi\u1ec7c ch\u1ecdn l\u1ecdc c\u00e1c gia \u0111\u00ecnh, c\u00e1c c\u00e2y tr\u1ed9i v\u00e0 \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c d\u00f2ng v\u00f4 t\u00ednh. \u0110\u1ec3 ph\u1ee5c cho m\u1ee5c ti\u00eau l\u00e2u d\u00e0i, m\u1ed9t s\u1ed1 qu\u1ea7n th\u1ec3 ch\u1ecdn gi\u1ed1ng c\u00f3 n\u1ec1n t\u1ea3ng di truy\u1ec1n t\u01b0\u01a1ng \u0111\u1ed1i r\u1ed9ng v\u00e0 \u0111a d\u1ea1ng c\u0169ng \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp cho m\u1ed9t s\u1ed1 lo\u00e0i b\u1ea1ch \u0111\u00e0n v\u00e0 keo. L\u00e0s\u1ef1 ti\u1ebfp n\u1ed1i c\u00e1c \u0111\u1ecbnh h\u01b0\u1edbng chi\u1ebfn l\u01b0\u1ee3c c\u1ea3i thi\u1ec7n gi\u1ed1ng \u0111\u00e3\u0111\u01b0\u1ee3c ho\u1ea1ch \u0111\u1ecbnh t\u1eeb tr\u01b0\u1edbc cho t\u1eebng lo\u00e0i v\u00e0 \u0111ang trong qu\u00e1 tr\u00ecnh tri\u1ec3n khai, c\u00e1c n\u1ed9i dung nghi\u00ean c\u1ee9u c\u1ee7a \u0111\u1ec1 t\u00e0i: “Nghi\u00ean c\u1ee9u ch\u1ecdn t\u1ea1o gi\u1ed1ng c\u00f3 n\u0103ng su\u1ea5t v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng cao cho m\u1ed9t s\u1ed1 lo\u00e0i c\u00e2y tr\u1ed3ng r\u1eebng ch\u1ee7 y\u1ebfu” giai \u0111o\u1ea1n 2001-2005 l\u00e0 s\u1ef1 k\u1ebf th\u1eeba c\u00e1c k\u1ebft qu\u1ea3 \u0111\u00e3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u1ee7a c\u00e1c \u0111\u1ec1 t\u00e0i c\u1ea5p Nh\u00e0 n\u01b0\u1edbc trong c\u00e1c giai \u0111o\u1ea1n tr\u01b0\u1edbc v\u1edbi nh\u1eefng m\u1ee5c ti\u00eau m\u1edbi: <\/p>\n

1.X\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 gi\u1ed1ng th\u00edch h\u1ee3p cho m\u1ed9t s\u1ed1 v\u00f9ng sinh th\u00e1i ch\u00ednh. <\/p>\n

2.Ch\u1ecdn t\u1ea1o \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 gi\u1ed1ng m\u1edbi c\u00f3 n\u0103ng su\u1ea5t v\u00e0\/ho\u1eb7c ch\u1ea5t l\u01b0\u1ee3ng cao h\u01a1n c\u00e1c gi\u1ed1ng \u0111ang d\u00f9ng trong s\u1ea3n xu\u1ea5t 20-30% <\/p>\n

3.X\u00e2y d\u1ef1ng v\u01b0\u1eddn t\u1eadp h\u1ee3p t\u1eadp \u0111o\u00e0n gi\u1ed1ng c\u00f4ng t\u00e1c c\u00f3 t\u00ednh \u0111a d\u1ea1ng di truy\u1ec1n cao nh\u1eb1m ph\u1ee5c v\u1ee5c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh ch\u1ecdn t\u1ea1o gi\u1ed1ng l\u00e2u d\u00e0i. <\/p>\n

4.Ho\u00e0n thi\u1ec7n c\u00f4ng ngh\u1ec7 nh\u00e2n nhanh c\u00e1c gi\u1ed1ng m\u1edbi ch\u1ecdn t\u1ea1o v\u00e0 chuy\u1ec3n giao gi\u1ed1ng g\u1ed1c cho m\u1ed9t s\u1ed1 c\u01a1 s\u1edf s\u1ea3n xu\u1ea5t c\u00e2y gi\u1ed1ng trong c\u1ea3 n\u01b0\u1edbc. <\/p>\n

5.X\u00e2y d\u1ef1ngm\u1ed9t s\u1ed1 r\u1eebng gi\u1ed1ng, v\u01b0\u1eddn gi\u1ed1ng c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng di truy\u1ec1n \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n cho c\u00e1c lo\u00e0i c\u00e2y nghi\u00ean c\u1ee9u .6.X\u00e2y d\u1ef1ng \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 b\u1ea3n h\u01b0\u1edbng d\u1eabn k\u0129 thu\u1eadt v\u1ec1 nh\u00e2n gi\u1ed1ng v\u00e0 ch\u1ecdn t\u1ea1o gi\u1ed1ng. <\/p>\n

\u0110\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c m\u1ee5c ti\u00eau tr\u00ean, b\u00ean c\u1ea1nh vi\u1ec7c x\u00e2y d\u1ef1ng m\u1edbi c\u00e1c r\u1eebng tr\u1ed3ng th\u00ed nghi\u1ec7m (kh\u1ea3o nghi\u1ec7m h\u1eadu th\u1ebf ho\u1eb7c kh\u1ea3o nghi\u1ec7m d\u00f2ng v\u00f4 t\u00ednh), cho m\u1ed9t s\u1ed1 lo\u00e0i \u0111\u00e3 qua kh\u1ea3o nghi\u1ec7m xu\u1ea5t x\u1ee9 nh\u1eb1m ph\u1ee5c v\u1ee5 cho c\u00e1c n\u1ed9i dung nghi\u00ean c\u1ee9u c\u1ee7a \u0111\u1ec1 t\u00e0i v\u00e0 c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh c\u1ea3i thi\u1ec7n gi\u1ed1ng trong t\u01b0\u01a1ng lai, c\u00e1c kh\u1ea3o nghi\u1ec7m gi\u1ed1ng v\u00e0 r\u1eebng tr\u1ed3ng th\u00ed nghi\u1ec7m \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng trong khu\u00f4n kh\u1ed5 c\u1ee7a c\u00e1c \u0111\u1ec1 t\u00e0i ch\u1ecdn t\u1ea1o gi\u1ed1ng tr\u01b0\u1edbc \u0111\u00e2y c\u0169ng \u0111\u01b0\u1ee3c ti\u1ebfp t\u1ee5c ch\u0103m s\u00f3c, theo d\u00f5i, \u0111\u00e1nh gi\u00e1 v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 c\u00e1c v\u1eadt li\u1ec7u kh\u1edfi \u0111\u1ea7u \u0111\u1ec3 ti\u1ebfn h\u00e0nh c\u00e1c n\u1ed9i dung nghi\u00ean c\u1ee9u c\u1ee7a \u0111\u1ec1 t\u00e0i. <\/p>\n

(K\u1ef7 y\u1ebfu H\u1ed9i ngh\u1ecb Khoa h\u1ecdc L\u00e2m nghi\u1ec7p khu v\u1ef1c ph\u00eda B\u1eafc trang 34-40) <\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

\nCác kh\u1ea3o nghi\u1ec7m loài\/xu\u1ea5t x\u1ee9 t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u1ed3ng b\u1ed9 và có h\u1ec7 th\u1ed1ng nh\u1eb1m xác \u0111\u1ecbnh các loài\/xu\u1ea5t x\u1ee9 có tri\u1ec3n v\u1ecdng cho tr\u1ed3ng r\u1eebng t\u1ea1i Vi\u1ec7t Nam \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n t\u1eeb n\u0103m \u0111\u1ea7u th\u1eadp k\u1ec9 80 c\u1ee7a th\u1ebf k\u1ec9 tr\u01b0\u1edbc. T\u1eeb \u0111ó \u0111\u1ebfn nay, nhi\u1ec1u nghiên c\u1ee9u \u0111ã \u0111\u01b0\u1ee3c ti\u1ebfn hành nh\u1eb1m c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng di truy\u1ec1n c\u1ee7a các v\u1eadt li\u1ec7u tr\u1ed3ng r\u1eebng \u1edf m\u1ee9c \u0111\u1ed9 và c\u01b0\u1eddng \u0111\u1ed9 cao h\u01a1n thông qua vi\u1ec7c ch\u1ecdn l\u1ecdc các gia \u0111ình, các cây tr\u1ed9i và \u0111\u1eb7c bi\u1ec7t là các dòng vô tính. \u0110\u1ec3 ph\u1ee5c cho m\u1ee5c tiêu lâu dài, m\u1ed9t s\u1ed1 qu\u1ea7n th\u1ec3 ch\u1ecdn gi\u1ed1ng có n\u1ec1n t\u1ea3ng di truy\u1ec1n t\u01b0\u01a1ng \u0111\u1ed1i r\u1ed9ng và \u0111a d\u1ea1ng c\u0169ng \u0111ã \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp cho m\u1ed9t s\u1ed1 loài b\u1ea1ch \u0111àn và keo. <\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[13],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9491"}],"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=9491"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9491\/revisions"}],"predecessor-version":[{"id":10945,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9491\/revisions\/10945"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9491"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9491"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9491"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}