{"id":9324,"date":"2010-01-21T04:02:02","date_gmt":"2010-01-20T21:02:02","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2010\/01\/nghien-cuu-dac-diem-tai-sinh-tu-nhien-voi-thuoc-schima-wallichii-choisy-tai-vung-tay-bac\/"},"modified":"2013-10-06T09:01:50","modified_gmt":"2013-10-06T02:01:50","slug":"nghien-cuu-dac-diem-tai-sinh-tu-nhien-voi-thuoc-schima-wallichii-choisy-tai-vung-tay-bac","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/nghien-cuu-dac-diem-tai-sinh-tu-nhien-voi-thuoc-schima-wallichii-choisy-tai-vung-tay-bac\/","title":{"rendered":"Nghi\u00ean c\u1ee9u \u0111\u1eb7c \u0111i\u1ec3m t\u00e1i sinh t\u1ef1 nhi\u00ean V\u1ed1i thu\u1ed1c (schima wallichii choisy) t\u1ea1i v\u00f9ng T\u00e2y B\u1eafc"},"content":{"rendered":"

<\/strong> <\/p>\n

V\u00f5 \u0110\u1ea1i H\u1ea3i<\/strong> <\/p>\n

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

T\u00f3m t\u1eaft<\/strong><\/strong> <\/p>\n

V\u1ed1i thu\u1ed1c l\u00e0 lo\u00e0i c\u00e2y b\u1ea3n \u0111\u1ecba, g\u1ed7 l\u1edbn, \u0111a t\u00e1c d\u1ee5ng c\u00f3 kh\u1ea3 n\u0103ng t\u00e1i sinh t\u1ef1 nhi\u00ean, h\u1ea1t v\u00e0 ch\u1ed3i r\u1ea5t t\u1ed1t. Nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n t\u1ea1i v\u00f9ng T\u00e2y B\u1eafc \u1edf c\u00e1c t\u1ec9nh S\u01a1n La, Lai Ch\u00e2u v\u00e0 \u0110i\u1ec7n Bi\u00ean cho hai \u0111\u1ed1i t\u01b0\u1ee3ng l\u00e0 r\u1eebng t\u1ef1 nhi\u00ean c\u00f3 V\u1ed1i thu\u1ed1c \u1edf t\u1ea7ng c\u00e2y cao v\u00e0 r\u1eebng t\u00e1i sinh sau n\u01b0\u01a1ng r\u1eaby. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y, V\u1ed1i thu\u1ed1c l\u00e0 lo\u00e0i t\u00e1i sinh r\u1ea5t m\u1ea1nh v\u1edbi gi\u00e1 tr\u1ecb t\u1ed5 th\u00e0nh c\u00f3 n\u01a1i l\u00ean t\u1edbi 5,1 v\u1edbi tr\u01b0\u1eddng h\u1ee3p t\u00e1i sinh d\u01b0\u1edbi t\u00e1n r\u1eebng v\u00e0 2,4 – 9,7 v\u1edbi tr\u01b0\u1eddng h\u1ee3p t\u00e1i sinh sau n\u01b0\u01a1ng r\u1eaby. \u0110a s\u1ed1 c\u00e2y t\u00e1i sinh V\u1ed1i thu\u1ed1c \u0111\u1ec1u c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng trung b\u00ecnh v\u00e0 t\u1ed1t (27 – 100%), t\u1ef7 l\u1ec7 c\u00e2y t\u00e1i sinh c\u00f3 tri\u1ec3n v\u1ecdng sau n\u01b0\u01a1ng r\u1eaby b\u1ecf h\u00f3a l\u00e0 kh\u00e1 cao 73-100%. Ph\u1ea7n l\u1edbn c\u00e2y t\u00e1i sinh V\u1ed1i thu\u1ed1c d\u01b0\u1edbi t\u00e1n r\u1eebng c\u00f3 chi\u1ec1u cao th\u1ea5p h\u01a1n 1m (chi\u1ebfm 33-100%). Nghi\u00ean c\u1ee9u c\u0169ng \u0111\u00e3 \u0111\u01b0a ra m\u1ed9t s\u1ed1 \u0111\u1ec1 xu\u1ea5t nh\u1eb1m x\u00fac ti\u1ebfn qu\u00e1 tr\u00ecnh t\u00e1i sinh V\u1ed1i thu\u1ed1c cho c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng n\u00e0y. <\/p>\n

T\u1eeb kh\u00f3a: <\/strong>V\u1ed1i thu\u1ed1c, t\u00e1i sinh t\u1ef1 nhi\u00ean, sau n\u01b0\u01a1ng r\u1eaby, T\u00e2y B\u1eafc Vi\u1ec7t Nam<\/em> <\/p>\n

\u0110\u1eb7t v\u1ea5n \u0111\u1ec1<\/strong> <\/p>\n

V\u1ed1i thu\u1ed1c (Schima wallichii<\/em> Choisy) l\u00e0 lo\u00e0i c\u00e2y g\u1ed7 l\u1edbn c\u00f3 ph\u00e2n b\u1ed1 r\u1ed9ng v\u00e0 \u0111a t\u00e1c d\u1ee5ng. G\u1ed7 thu\u1ed9c nh\u00f3m V, n\u1eb7ng v\u00e0 b\u1ec1n ch\u1eafc, kh\u00f4ng cong v\u00eanh, m\u1ed1i m\u1ecdt, l\u00f5i gi\u00e1c m\u00e0u n\u00e2u r\u1ea5t \u0111\u1eb9p, th\u01b0\u1eddng d\u00f9ng l\u00e0m c\u1ed9t nh\u00e0, \u0111\u1ed3 gia d\u1ee5ng; v\u1ecf, l\u00e1 v\u00e0 r\u1ec5 c\u00e2y \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 ch\u1eefa b\u1ec7nh v\u00e0 s\u1ea3n xu\u1ea5t c\u00e1c ch\u1ebf ph\u1ea9m c\u00f4ng nghi\u1ec7p,\u2026 Ngo\u00e0i ra V\u1ed1i thu\u1ed1c c\u00f2n c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t t\u1ed1t n\u00ean \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m b\u0103ng xanh c\u1ea3n l\u1eeda r\u1ea5t c\u00f3 hi\u1ec7u qu\u1ea3. V\u1edbi nh\u1eefng \u01b0u \u0111i\u1ec3m \u0111\u00f3, hi\u1ec7n nay V\u1ed1i thu\u1ed1c l\u00e0 lo\u00e0i c\u00e2y \u0111\u00e3 v\u00e0 \u0111ang \u0111\u01b0\u1ee3c B\u1ed9 N\u00f4ng nghi\u1ec7p v\u00e0 PTNT c\u00f9ng nhi\u1ec1u \u0111\u1ecba ph\u01b0\u01a1ng quan t\u00e2m nghi\u00ean c\u1ee9u ph\u00e1t tri\u1ec3n, trong \u0111\u00f3 t\u00e1i sinh t\u1ef1 nhi\u00ean l\u00e0 r\u1ea5t quan tr\u1ecdng. B\u00e0i vi\u1ebft, n\u00eau k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u v\u1ec1 \u0111\u1eb7c \u0111i\u1ec3m t\u00e1i sinh t\u1ef1 nhi\u00ean lo\u00e0i V\u1ed1i thu\u1ed1c t\u1ea1i T\u00e2y B\u1eafc, Vi\u1ec7t Nam nh\u1eb1m \u0111\u1ec1 xu\u1ea5t gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt l\u00e2m sinh trong khoanh nu\u00f4i x\u00fac ti\u1ebfn t\u00e1i sinh t\u1ef1 nhi\u00ean r\u1eebng V\u1ed1i thu\u1ed1c t\u1ea1i T\u00e2y B\u1eafc. <\/p>\n

Ngu\u1ed3n: T\u1ea1p ch\u00ed N\u00f4ng nghi\u1ec7p v\u00e0 Ph\u00e1t tri\u1ec3n N\u00f4ng th\u00f4n s\u1ed1 4 n\u0103m 2008, trang 72-76 <\/em> <\/p>\n","protected":false},"excerpt":{"rendered":"

\n \n<\/p>\n

\nV\u1ed1i thu\u1ed1c là loài cây b\u1ea3n \u0111\u1ecba, g\u1ed7 l\u1edbn, \u0111a tác d\u1ee5ng có kh\u1ea3 n\u0103ng tái sinh t\u1ef1 nhiên, h\u1ea1t và ch\u1ed3i r\u1ea5t t\u1ed1t. Nghiên c\u1ee9u \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n t\u1ea1i vùng Tây B\u1eafc \u1edf các t\u1ec9nh S\u01a1n La, Lai Châu và \u0110i\u1ec7n Biên cho hai \u0111\u1ed1i t\u01b0\u1ee3ng là r\u1eebng t\u1ef1 nhiên có V\u1ed1i thu\u1ed1c \u1edf t\u1ea7ng cây cao và r\u1eebng tái sinh sau n\u01b0\u01a1ng r\u1eaby. K\u1ebft qu\u1ea3 nghiên c\u1ee9u cho th\u1ea5y, V\u1ed1i thu\u1ed1c là loài tái sinh r\u1ea5t m\u1ea1nh v\u1edbi giá tr\u1ecb t\u1ed5 thành có n\u01a1i lên t\u1edbi 5,1 v\u1edbi tr\u01b0\u1eddng h\u1ee3p tái sinh d\u01b0\u1edbi tán r\u1eebng và 2,4 – 9,7 v\u1edbi tr\u01b0\u1eddng h\u1ee3p tái sinh sau n\u01b0\u01a1ng r\u1eaby. \u0110a s\u1ed1 cây tái sinh V\u1ed1i thu\u1ed1c \u0111\u1ec1u có ch\u1ea5t l\u01b0\u1ee3ng trung bình và t\u1ed1t (27 – 100%), t\u1ef7 l\u1ec7 cây tái sinh có tri\u1ec3n v\u1ecdng sau n\u01b0\u01a1ng r\u1eaby b\u1ecf hóa là khá cao 73-100%. Ph\u1ea7n l\u1edbn cây tái sinh V\u1ed1i thu\u1ed1c d\u01b0\u1edbi tán r\u1eebng có chi\u1ec1u cao th\u1ea5p h\u01a1n 1m (chi\u1ebfm 33-100%). Nghiên c\u1ee9u c\u0169ng \u0111ã \u0111\u01b0a ra m\u1ed9t s\u1ed1 \u0111\u1ec1 xu\u1ea5t nh\u1eb1m xúc ti\u1ebfn quá trình tái sinh V\u1ed1i thu\u1ed1c cho các \u0111\u1ed1i t\u01b0\u1ee3ng này.  <\/span><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[21],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9324"}],"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=9324"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9324\/revisions"}],"predecessor-version":[{"id":10778,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9324\/revisions\/10778"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9324"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9324"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9324"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}