{"id":9524,"date":"2011-04-06T01:47:43","date_gmt":"2011-04-05T18:47:43","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2011\/04\/tiem-nang-phat-trien-giong-bach-dan-lai-nhan-tao-cho-trong-rung-kinh-te\/"},"modified":"2013-10-06T09:02:12","modified_gmt":"2013-10-06T02:02:12","slug":"tiem-nang-phat-trien-giong-bach-dan-lai-nhan-tao-cho-trong-rung-kinh-te","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/tiem-nang-phat-trien-giong-bach-dan-lai-nhan-tao-cho-trong-rung-kinh-te\/","title":{"rendered":"Ti\u1ec1m n\u0103ng ph\u00e1t tri\u1ec3n gi\u1ed1ng b\u1ea1ch \u0111\u00e0n lai nh\u00e2n t\u1ea1o cho tr\u1ed3ng r\u1eebng kinh t\u1ebf"},"content":{"rendered":"<p> <strong>Nguy\u1ec5n Vi\u1ec7t C\u01b0\u1eddng<\/strong> <\/p>\n<p> <em>Trung t\u00e2m Nghi\u00ean c\u1ee9u Sinh h\u1ecdc L\u00e2m nghi\u1ec7p<\/em><strong><\/strong> <\/p>\n<p> <strong>M\u1edf \u0111\u1ea7u<\/strong> <\/p>\n<p> B\u1ea1ch \u0111\u00e0n l\u00e0 nh\u00f3m lo\u00e0i c\u00e2y c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m, sinh tr\u01b0\u1edfng nhanh, lu\u00e2n k\u1ef3 khai th\u00e1c ng\u1eafn (7-10 n\u0103m) c\u00f3 kh\u1ea3 n\u0103ng th\u00edch nghi v\u1edbi nhi\u1ec1u \u0111i\u1ec1u ki\u1ec7n kh\u00ed h\u1eadu, \u0111\u1ea5t \u0111ai, l\u1ea1i cho n\u0103ng su\u1ea5t t\u01b0\u01a1ng \u0111\u1ed1i cao (18-20m<sup>3<\/sup>\/ha\/n\u0103m). Cho \u0111\u1ebfn nay b\u1ea1ch \u0111\u00e0n v\u1eabn l\u00e0 m\u1ed9t trong nh\u1eefngnh\u00f3m c\u00e2y tr\u1ed3ng ch\u1ee7 y\u1ebfu trong c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh tr\u1ed3ng r\u1eebng \u1edf n\u01b0\u1edbc ta. <\/p>\n<p> Lai gi\u1ed1ng cho 3 lo\u00e0i b\u1ea1ch \u0111\u00e0n \u1edf n\u01b0\u1edbc ta, B\u1ea1ch \u0111\u00e0n ur\u00f4 (<em>Eucalyptus urophylla)<\/em>, B\u1ea1ch \u0111\u00e0n tr\u1eafng caman (<em>E.camaldulensis)<\/em> v\u00e0 B\u1ea1ch \u0111\u00e0n li\u1ec5u (<em>E. exserta)<\/em> \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n t\u1eeb n\u0103m 1994 \u0111\u1ebfn n\u0103m 2000 \u0111\u00e3 thu \u0111\u01b0\u1ee3c h\u01a1n 60 t\u1ed5 h\u1ee3p lai nh\u00e2n t\u1ea1o \u0111\u1ea7u ti\u00ean (thu\u1ed9c \u0111\u1ec1 t\u00e0i &#8220;B\u01b0\u1edbc \u0111\u1ea7u nghi\u00ean c\u1ee9u lai gi\u1ed1ng cho m\u1ed9t s\u1ed1 lo\u00e0i b\u1ea1ch \u0111\u00e0n&#8221; do GS.TS L\u00ea \u0110\u00ecnh Kh\u1ea3 l\u00e0m ch\u1ee7 nhi\u1ec7m \u0111\u1ec1 t\u00e0i, KS Nguy\u1ec5n Vi\u1ec7t C\u01b0\u1eddng l\u00e0 c\u1ed9ng t\u00e1c vi\u00ean ch\u00ednh tr\u1ef1c ti\u1ebfp th\u1ef1c hi\u1ec7n \u0111\u1ec1 t\u00e0i). Qua kh\u1ea3o nghi\u1ec7m c\u0169ng \u0111\u00e3 ch\u1ecdn l\u1ecdc \u0111\u01b0\u1ee3c 31 c\u00e2y tr\u1ed9i thu\u1ed9c 8 t\u1ed5 h\u1ee3p lai (U29E1, U29E2, U29C3, U29C4, U29U24, U29U26, U15C4, U30E5).  <\/p>\n<p> T\u1eeb n\u0103m 2001-2010, \u0111\u1ec1 t\u00e0i &#8221; Nghi\u00ean c\u1ee9u lai gi\u1ed1ng m\u1ed9t s\u1ed1 lo\u00e0i b\u1ea1ch \u0111\u00e0n, tr\u00e0m, keo, th\u00f4ng&#8221; do TS.Nguy\u1ec5n Vi\u1ec7t C\u01b0\u1eddng l\u00e0m ch\u1ee7 nhi\u1ec7m \u0111\u1ec1 t\u00e0i, \u0111\u00e3 ti\u1ebfp t\u1ee5c lai t\u1ea1o h\u00e0ng ch\u1ee5c d\u00f2ng lai m\u1edbi cho n\u0103ng su\u1ea5t cao (25-40m<sup>3<\/sup>\/ha\/n\u0103m) gi\u1eefa B\u1ea1ch \u0111\u00e0n ur\u00f4 v\u1edbi B\u1ea1ch \u0111\u00e0n pellita, B\u1ea1ch \u0111\u00e0n tere, B\u1ea1ch \u0111\u00e0n grandis, B\u1ea1ch \u0111\u00e0n saligna, B\u1ea1ch \u0111\u00e0n microcorys, v\u00e0 nh\u00e2n gi\u1ed1ng 27 c\u00e2y tr\u1ed9i thu\u1ed9c 8 t\u1ed5 h\u1ee3p lai (U29E1, U29E2, U29C3, U29C4, U29U24, U29U26, U15C4, U30E5) \u0111\u1ec3 ph\u1ee5c v\u1ee5 kh\u1ea3o nghi\u1ec7m tr\u00ean c\u00e1c v\u00f9ng sinh th\u00e1i trong c\u1ea3 n\u01b0\u1edbc.  <\/p>\n<p> B\u00e0i b\u00e1o n\u00e0y gi\u1edbi thi\u1ec7u k\u1ebft qu\u1ea3 kh\u1ea3o nghi\u1ec7m c\u00e1c d\u00f2ng b\u1ea1ch \u0111\u00e0n lai nh\u00e2n t\u1ea1o \u1edf m\u1ed9t s\u1ed1 v\u00f9ng sinh th\u00e1i ch\u00ednh \u1edf n\u01b0\u1edbc ta. <\/p>\n<p> <em>(K\u1ef7 y\u1ebfu H\u1ed9i ngh\u1ecb Khoa h\u1ecdc c\u00f4ng ngh\u1ec7 l\u00e2m nghi\u1ec7p khu v\u1ef1c ph\u00eda B\u1eafc trang 54-64)<\/em> <\/p>\n","protected":false},"excerpt":{"rendered":"<p align=\"justify\">\n<span style=\"font-family: Arial; font-size: 10pt\">B\u1ea1ch \u0111&agrave;n l&agrave; nh&oacute;m lo&agrave;i c&acirc;y c&oacute; nhi\u1ec1u \u01b0u \u0111i\u1ec3m, sinh tr\u01b0\u1edfng nhanh, lu&acirc;n k\u1ef3 khai th&aacute;c ng\u1eafn (7-10 n\u0103m) c&oacute; kh\u1ea3 n\u0103ng th&iacute;ch nghi v\u1edbi nhi\u1ec1u \u0111i\u1ec1u ki\u1ec7n kh&iacute; h\u1eadu, \u0111\u1ea5t \u0111ai, l\u1ea1i cho n\u0103ng su\u1ea5t t\u01b0\u01a1ng \u0111\u1ed1i cao (18-20m<sup>3<\/sup>\/ha\/n\u0103m). Cho \u0111\u1ebfn nay b\u1ea1ch \u0111&agrave;n v\u1eabn l&agrave; m\u1ed9t trong nh\u1eefng<span>&nbsp; <\/span>nh&oacute;m c&acirc;y tr\u1ed3ng ch\u1ee7 y\u1ebfu trong c&aacute;c ch\u01b0\u01a1ng tr&igrave;nh tr\u1ed3ng r\u1eebng \u1edf n\u01b0\u1edbc ta.<\/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\/9524"}],"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=9524"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9524\/revisions"}],"predecessor-version":[{"id":10978,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9524\/revisions\/10978"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9524"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9524"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}