{"id":9200,"date":"2009-06-12T09:06:44","date_gmt":"2009-06-12T02:06:44","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2009\/06\/ket-qua-buoc-dau-chon-giong-va-nhan-giong-vo-tinh-cay-hoi\/"},"modified":"2013-10-06T09:01:36","modified_gmt":"2013-10-06T02:01:36","slug":"ket-qua-buoc-dau-chon-giong-va-nhan-giong-vo-tinh-cay-hoi","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/ket-qua-buoc-dau-chon-giong-va-nhan-giong-vo-tinh-cay-hoi\/","title":{"rendered":"K\u1ebft qu\u1ea3 b\u01b0\u1edbc \u0111\u1ea7u ch\u1ecdn gi\u1ed1ng v\u00e0 nh\u00e2n gi\u1ed1ng v\u00f4 t\u00ednh c\u00e2y H\u1ed3i"},"content":{"rendered":"

H\u1ed3i (Ilicium verum<\/em> Hook.F) l\u00e0 c\u00e2y \u0111a m\u1ee5c \u0111\u00edch v\u1eeba c\u00f3 t\u00e1c d\u1ee5ng che ph\u1ee7 b\u1ea3o v\u1ec7 \u0111\u1ea5t v\u1eeba \u0111em l\u1ea1i hi\u1ec7u qu\u1ea3 kinh t\u1ebf cao. Tinh d\u1ea7u h\u1ed3i l\u00e0 nguy\u00ean li\u1ec7u qu\u00ed trong c\u00f4ng nghi\u1ec7p d\u01b0\u1ee3c ph\u1ea9m v\u00e0 th\u1ef1c ph\u1ea9m. H\u01a1n n\u1eefa, h\u1ed3i l\u00e0 c\u00e2y \u0111\u1eb7c h\u1eefu ch\u1ec9 c\u00f3 \u1edf m\u1ed9t s\u1ed1 n\u01b0\u1edbc tr\u00ean th\u1ebf gi\u1edbi n\u00ean tinh d\u1ea7u h\u1ed3i c\u00f2n l\u00e0 m\u1eb7t h\u00e0ng xu\u1ea5t kh\u1ea9u c\u00f3 gi\u00e1 tr\u1ecb. H\u00e0ng n\u0103m c\u00e1c n\u01b0\u1edbc tr\u00ean th\u1ebf gi\u1edbi \u0111\u00e3 ti\u00eau th\u1ee5 kho\u1ea3ng 25000 t\u1ea5n tinh d\u1ea7u, trong \u0111\u00f3 c\u00e1c n\u01b0\u1edbc Ch\u00e2u \u00e1 ti\u00eau th\u1ee5 kho\u1ea3ng 28%, c\u00e1c n\u01b0\u1edbc Ch\u00e2u M\u1ef9 ti\u00eau th\u1ee5 kho\u1ea3ng 40%, c\u00e1c n\u01b0\u1edbc Ch\u00e2u \u00c2u 20%, c\u00f2n l\u1ea1i \u1edf c\u00e1c n\u01b0\u1edbc kh\u00e1c (Pavlovna, 1977, d\u1eabn t\u1eeb Nguy\u1ec5n Ng\u1ecdc T\u00e2n, 1987). Nh\u01b0 v\u1eady, nhu c\u1ea7u s\u1eed d\u1ee5ng tinh d\u1ea7u H\u1ed3i tr\u00ean th\u1ebf gi\u1edbi l\u00e0 r\u1ea5t l\u1edbn. \u1edf n\u01b0\u1edbc ta, h\u1ed3i \u0111\u01b0\u1ee3c tr\u1ed3ng nhi\u1ec1u \u1edf c\u00e1c t\u1ec9nh bi\u00ean gi\u1edbi v\u00f9ng \u0110\u00f4ng B\u1eafc, nh\u01b0ng t\u1eadp trung ch\u1ee7 y\u1ebfu \u1edf L\u1ea1ng S\u01a1n, \u0111a s\u1ed1 r\u1eebng h\u1ed3i hi\u1ec7n nay c\u00f3 ngu\u1ed3n gi\u1ed1ng ch\u01b0a \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n, n\u00ean n\u0103ng su\u1ea5t c\u00f2n r\u1ea5t th\u1ea5p. \u0110\u1ec3 n\u00e2ng cao n\u0103ng su\u1ea5t ch\u1ea5t l\u01b0\u1ee3ng r\u1eebng H\u1ed3i, vi\u1ec7c c\u1ea3i thi\u1ec7n gi\u1ed1ng H\u1ed3i l\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft v\u00e0 c\u00f3 \u00fd ngh\u0129a c\u1ea3 v\u1ec1 khoa h\u1ecdc l\u1eabn th\u1ef1c t\u1ebf s\u1ea3n xu\u1ea5t. Ch\u1ecdn gi\u1ed1ng v\u00e0 nh\u00e2n gi\u1ed1ng v\u00f4 t\u00ednh l\u00e0 hai n\u1ed9i dung quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh c\u1ea3i thi\u1ec7n gi\u1ed1ng c\u00e2y r\u1eebng n\u00f3i chung v\u00e0 gi\u1ed1ng H\u1ed3i n\u00f3i ri\u00eang, \u0111\u1ed3ng th\u1eddi l\u00e0 m\u1ed9t trong nh\u1eefng n\u1ed9i dung c\u1ee7a \u0111\u1ec1 t\u00e0i “X\u00e2y d\u1ef1ng m\u00f4 h\u00ecnh r\u1eebng H\u1ed3i c\u00f3 s\u1ea3n l\u01b0\u1ee3ng cao tr\u00ean c\u01a1 s\u1edf gi\u1ed1ng \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ecdn l\u1ecdc” thu\u1ed9c ch\u01b0\u01a1ng tr\u00ecnh 661 m\u00e0 Vi\u1ec7n khoa h\u1ecdc l\u00e2m nghi\u1ec7p Vi\u1ec7t Nam \u0111\u00e3 th\u1ef1c hi\u1ec7n t\u1eeb n\u0103m 1999-2003. Trong ph\u1ea1m vi b\u00e0i n\u00e0y xin gi\u1edbi thi\u1ec7u k\u1ebft qu\u1ea3 b\u01b0\u1edbc \u0111\u1ea7u v\u1ec1 v\u1ea5n \u0111\u1ec1 ch\u1ecdn gi\u1ed1ng v\u00e0 nh\u00e2n gi\u1ed1ng v\u00f4 t\u00ednh. <\/p>\n","protected":false},"excerpt":{"rendered":"

H\u1ed3i (Ilicium verum<\/em> Hook.F) là cây \u0111a m\u1ee5c \u0111ích v\u1eeba có tác d\u1ee5ng che ph\u1ee7 b\u1ea3o v\u1ec7 \u0111\u1ea5t v\u1eeba \u0111em l\u1ea1i hi\u1ec7u qu\u1ea3 kinh t\u1ebf cao. Tinh d\u1ea7u h\u1ed3i là nguyên li\u1ec7u quí trong công nghi\u1ec7p d\u01b0\u1ee3c ph\u1ea9m và th\u1ef1c ph\u1ea9m. H\u01a1n n\u1eefa, h\u1ed3i là cây \u0111\u1eb7c h\u1eefu ch\u1ec9 có \u1edf m\u1ed9t s\u1ed1 n\u01b0\u1edbc trên th\u1ebf gi\u1edbi nên tinh d\u1ea7u h\u1ed3i còn là m\u1eb7t hàng xu\u1ea5t kh\u1ea9u có giá tr\u1ecb. Hàng n\u0103m các n\u01b0\u1edbc trên th\u1ebf gi\u1edbi \u0111ã tiêu th\u1ee5 kho\u1ea3ng 25000 t\u1ea5n tinh d\u1ea7u, trong \u0111ó các n\u01b0\u1edbc Châu á tiêu th\u1ee5 kho\u1ea3ng 28%, các n\u01b0\u1edbc Châu M\u1ef9 tiêu th\u1ee5 kho\u1ea3ng 40%, các n\u01b0\u1edbc Châu Âu 20%, còn l\u1ea1i \u1edf các n\u01b0\u1edbc khác (Pavlovna, 1977, d\u1eabn t\u1eeb Nguy\u1ec5n Ng\u1ecdc Tân, 1987). Nh\u01b0 v\u1eady, nhu c\u1ea7u s\u1eed d\u1ee5ng tinh d\u1ea7u H\u1ed3i trên th\u1ebf gi\u1edbi là r\u1ea5t l\u1edbn. \u1edf n\u01b0\u1edbc ta, h\u1ed3i \u0111\u01b0\u1ee3c tr\u1ed3ng nhi\u1ec1u \u1edf các t\u1ec9nh biên gi\u1edbi vùng \u0110ông B\u1eafc, nh\u01b0ng t\u1eadp trung ch\u1ee7 y\u1ebfu \u1edf L\u1ea1ng S\u01a1n, \u0111a s\u1ed1 r\u1eebng h\u1ed3i hi\u1ec7n nay có ngu\u1ed3n gi\u1ed1ng ch\u01b0a \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n, nên n\u0103ng su\u1ea5t còn r\u1ea5t th\u1ea5p. \u0110\u1ec3 nâng cao n\u0103ng su\u1ea5t ch\u1ea5t l\u01b0\u1ee3ng r\u1eebng H\u1ed3i, vi\u1ec7c c\u1ea3i thi\u1ec7n gi\u1ed1ng H\u1ed3i là r\u1ea5t c\u1ea7n thi\u1ebft và có ý ngh\u0129a c\u1ea3 v\u1ec1 khoa h\u1ecdc l\u1eabn th\u1ef1c t\u1ebf s\u1ea3n xu\u1ea5t. Ch\u1ecdn gi\u1ed1ng và nhân gi\u1ed1ng vô tính là hai n\u1ed9i dung quan tr\u1ecdng trong quá trình c\u1ea3i thi\u1ec7n gi\u1ed1ng cây r\u1eebng nói chung và gi\u1ed1ng H\u1ed3i nói riêng, \u0111\u1ed3ng th\u1eddi là m\u1ed9t trong nh\u1eefng n\u1ed9i dung c\u1ee7a \u0111\u1ec1 tài “Xây d\u1ef1ng mô hình r\u1eebng H\u1ed3i có s\u1ea3n l\u01b0\u1ee3ng cao trên c\u01a1 s\u1edf gi\u1ed1ng \u0111ã \u0111\u01b0\u1ee3c ch\u1ecdn l\u1ecdc” thu\u1ed9c ch\u01b0\u01a1ng trình 661 mà Vi\u1ec7n khoa h\u1ecdc lâm nghi\u1ec7p Vi\u1ec7t Nam \u0111ã th\u1ef1c hi\u1ec7n t\u1eeb n\u0103m 1999-2003. Trong ph\u1ea1m vi bài này xin gi\u1edbi thi\u1ec7u k\u1ebft qu\u1ea3 b\u01b0\u1edbc \u0111\u1ea7u v\u1ec1 v\u1ea5n \u0111\u1ec1 ch\u1ecdn gi\u1ed1ng và nhân gi\u1ed1ng vô tính.<\/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\/9200"}],"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=9200"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9200\/revisions"}],"predecessor-version":[{"id":10654,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9200\/revisions\/10654"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9200"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9200"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9200"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}