{"id":9091,"date":"2009-04-20T08:34:31","date_gmt":"2009-04-20T01:34:31","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2009\/04\/khao-sat-dieu-kien-song-cua-tra-hoa-vang-tai-ba-vi-ha-tay-va-son-dong-bac-giang\/"},"modified":"2013-10-06T09:01:20","modified_gmt":"2013-10-06T02:01:20","slug":"khao-sat-dieu-kien-song-cua-tra-hoa-vang-tai-ba-vi-ha-tay-va-son-dong-bac-giang","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/khao-sat-dieu-kien-song-cua-tra-hoa-vang-tai-ba-vi-ha-tay-va-son-dong-bac-giang\/","title":{"rendered":"Kh\u1ea3o s\u00e1t \u0111i\u1ec1u ki\u1ec7n s\u1ed1ng c\u1ee7a Tr\u00e0 hoa v\u00e0ng t\u1ea1i Ba V\u00ec (H\u00e0 T\u00e2y) v\u00e0 S\u01a1n \u0110\u1ed9ng (B\u1eafc Giang)"},"content":{"rendered":"\n<p> <strong>Ng\u00f4 Quang \u0110\u00ea, Ng\u00f4 Quang H\u01b0ng<\/strong> <\/p>\n<p> <strong>L\u00ea S\u1ef9 Doanh<\/strong> <\/p>\n<p> <em>Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/em> <\/p>\n<p> <strong>T\u00d3M T\u1eaeT<\/strong> <\/p>\n<p> Tr\u00e0 hoa v\u00e0ng Ba V\u00ec (<em>Camellia tonkinensis<\/em> (Pitard) Cohen Stuart) v\u00e0 Tr\u00e0 hoa V\u00e0ng S\u01a1n \u0110\u1ed9ng <em>(Camellia euphlebia<\/em> Merret Sealey var. <em>microphylla)<\/em> \u0111\u1ec1u s\u1ed1ng trong r\u1eebng th\u1ee9 sinh ngh\u00e8o ki\u1ec7t, \u0111\u1ed9 t\u00e0n che 0,5 \u2013 0,6 (Ba V\u00ec) v\u00e0 0,5 \u2013 0,65 (S\u01a1n \u0110\u1ed9ng), c\u00f3 \u0111\u1ed9 cao 500m (Ba V\u00ec) v\u00e0 300 \u2013 350m (S\u01a1n \u0110\u1ed9ng) so v\u1edbi m\u1eb7t bi\u1ec3n. \u0110i\u1ec1u tra \u00f4 6 c\u00e2y cho th\u1ea5y c\u00e1c lo\u00e0i th\u01b0\u1eddng m\u1ecdc c\u00f9ng v\u1edbi Tr\u00e0 hoa v\u00e0ng \u1edf Ba V\u00ec l\u00e0 Kh\u00e1o, Ch\u00e2n chim, M\u00e1u ch\u00f3, Ba b\u00e9t, Ch\u1eb9o, Ng\u00e1t c\u00f2n \u1edf S\u01a1n \u0110\u1ed9ng l\u00e0 Kh\u00e1o, Lim xanh, M\u00e1u ch\u00f3, Tr\u00e1m. C\u00e2y b\u1ee5i th\u1ea3m t\u01b0\u01a1i d\u01b0\u1edbi r\u1eebng th\u01b0\u1eddng l\u00e0 M\u00edt ma, B\u1ed3 cu v\u1ebd, Ba soi, Th\u1ea7u t\u1ea5u (Ba V\u00ec) v\u00e0 M\u00edt ma, B\u1ed3 cu v\u1ebd, Ba soi, Th\u1ea7u t\u1ea5u (S\u01a1n \u0110\u1ed9ng). N\u01a1i Tr\u00e0 hoa v\u00e0ng sinh s\u1ed1ng c\u00f3 nhi\u1ec7t \u0111\u1ed9 trung b\u00ecnh n\u0103m t\u1eeb 22,5<sup>o<\/sup>C (S\u01a1n \u0110\u1ed9ng) \u0111\u1ebfn 23,4<sup>o<\/sup>C (Ba V\u00ec); nhi\u1ec7t \u0111\u1ed9 th\u00e1ng l\u1ea1nh nh\u1ea5t (th\u00e1ng gi\u00eang) l\u00e0 14,9<sup>o<\/sup>C (S\u01a1n \u0110\u1ed9ng) v\u00e0 15,7<sup>o<\/sup>C (Ba V\u00ec); nhi\u1ec7t \u0111\u1ed9 trung b\u00ecnh th\u00e1ng n\u00f3ng nh\u1ea5t (th\u00e1ng 7) l\u00e0 29,1<sup>o<\/sup>C (Ba V\u00ec) v\u00e0 28,1<sup>o<\/sup>C (S\u01a1n \u0110\u1ed9ng); l\u01b0\u1ee3ng m\u01b0a b\u00ecnh qu\u00e2n n\u0103m t\u1eeb 1560mm (S\u01a1n \u0110\u1ed9ng) \u0111\u1ebfn 2188mm (Ba V\u00ec). C\u1ea3 2 lo\u00e0i \u0111\u1ec1u s\u1ed1ng ven khe su\u1ed1i, tr\u00ean \u0111\u1ea5t c\u00e1t pha \u0111\u1ebfn th\u1ecbt nh\u1eb9, \u0111\u1ed9 d\u00e0y t\u1ea7ng \u0111\u1ea5t t\u1eeb 60cm (Ba V\u00ec) t\u1edbi 80cm (S\u01a1n \u0110\u1ed9ng). \u0110\u1ea5t c\u00f3 m\u00e0u n\u00e2u ho\u1eb7c x\u00e1m \u0111en, chuy\u1ec3n l\u1edbp r\u00f5.  <\/p>\n<p> <strong>T\u1eeb kho\u00e1<\/strong>: Tr\u00e0 hoa v\u00e0ng, \u0111i\u1ec1u ki\u1ec7n s\u1ed1ng.<strong><\/strong> <\/p>\n<p> <strong>M\u1ede \u0110\u1ea6U<\/strong> <\/p>\n<p> Chi <em>Camellia<\/em> l\u00e0 m\u1ed9t chi l\u1edbn thu\u1ed9c h\u1ecd Ch\u00e8 (Theaceae). C\u00e1c lo\u00e0i trong chi <em>Camellia<\/em> c\u00f3 nhi\u1ec1u t\u00e1c d\u1ee5ng nh\u01b0 g\u1ed7 l\u00e0m \u0111\u1ed3 gia d\u1ee5ng b\u1ec1n ch\u1eafc, l\u00e1 hoa l\u00e0m \u0111\u1ed3 u\u1ed1ng, l\u00e0m d\u01b0\u1ee3c li\u1ec7u v\u00e0 l\u00e0m c\u00e2y c\u1ea3nh. Ngo\u00e0i ra, c\u00f3 th\u1ec3 tr\u1ed3ng d\u01b0\u1edbi t\u00e1n c\u00e2y kh\u00e1c trong c\u00e1c \u0111ai r\u1eebng ph\u00f2ng h\u1ed9 ch\u1ed1ng x\u00f3i m\u00f2n, nu\u00f4i d\u01b0\u1ee1ng ngu\u1ed3n n\u01b0\u1edbc (Ng\u00f4 Quang \u0110\u00ea, 2001). Tr\u00e0 hoa v\u00e0ng l\u00e0 lo\u00e0i c\u00e2y qu\u00fd, \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n \u1edf Trung Qu\u1ed1c v\u00e0o nh\u1eefng n\u0103m 60 c\u1ee7a th\u1ebf k\u1ef7 20 nh\u01b0ng \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n nhanh ch\u00f3ng nh\u1edd nh\u1eefng \u0111\u1eb7c t\u00ednh v\u1ed1n c\u00f3 c\u1ee7a n\u00f3. Trung Qu\u1ed1c \u0111\u00e3 lai gi\u1ed1ng th\u00e0nh c\u00f4ng gi\u1eefa Tr\u00e0 hoa v\u00e0ng v\u00e0 Tr\u00e0 hoa \u0111\u1ecf, l\u00e0m l\u00e1 nh\u1ecf \u0111i nh\u01b0ng v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c m\u00e0u hoa v\u00e0ng tuy\u1ec7t \u0111\u1eb9p, g\u00e2y tr\u1ed3ng v\u00e0 ch\u1ebf bi\u1ebfn Tr\u00e0 hoa v\u00e0ng th\u00e0nh \u0111\u1ed3 u\u1ed1ng b\u1ed5 d\u01b0\u1ee1ng cao c\u1ea5p c\u00f3 t\u00e1c d\u1ee5ng ph\u00f2ng v\u00e0 ch\u1eefa b\u1ec7nh t\u1ed1t. \u1ede n\u01b0\u1edbc ta nh\u1eefng n\u0103m 90 c\u1ee7a th\u1ebf k\u1ef7 20 c\u0169ng \u0111\u00e3 ph\u00e1t hi\u1ec7n Tr\u00e0 hoa v\u00e0ng \u1edf nhi\u1ec1u n\u01a1i, song m\u1edbi d\u1eebng l\u1ea1i \u1edf m\u1ee9c ph\u00e1t hi\u1ec7n v\u00e0 ph\u00e2n lo\u1ea1i. Nghi\u00ean c\u1ee9u v\u1ec1 sinh th\u00e1i v\u00e0 g\u00e2y tr\u1ed3ng, s\u1eed d\u1ee5ng Tr\u00e0 hoa v\u00e0ng c\u00f2n r\u1ea5t \u00edt th\u00f4ng tin. \u0110\u01b0\u1ee3c s\u1ef1 t\u00e0i tr\u1ee3 c\u1ee7a Trung t\u00e2m h\u1ed7 tr\u1ee3 nghi\u00ean c\u1ee9u Ch\u00e2u \u00c1 (\u0110\u1ea1i h\u1ecdc Qu\u1ed1c gia H\u00e0 N\u1ed9i) ch\u00fang t\u00f4i \u0111\u00e3 ti\u1ebfn h\u00e0nh kh\u1ea3o s\u00e1t \u0111i\u1ec1u ki\u1ec7n s\u1ed1ng c\u1ee7a 2 lo\u00e0i Tr\u00e0 hoa v\u00e0ng \u1edf Ba V\u00ec v\u00e0 S\u01a1n \u0110\u1ed9ng. <\/p>\n<p> <strong><a>T\u1ea3i file t\u1ea1i \u0111\u00e2y<\/a><\/strong> <\/p>\n","protected":false},"excerpt":{"rendered":"<p align=\"justify\">\n&nbsp;\n<\/p>\n<p align=\"justify\">\n<span style=\"font-size: 12pt\"><font face=\"Times New Roman\">Tr&agrave; hoa v&agrave;ng Ba V&igrave; (<em>Camellia tonkinensis<\/em> (Pitard) Cohen Stuart) v&agrave; Tr&agrave; hoa V&agrave;ng S\u01a1n \u0110\u1ed9ng <em>(Camellia euphlebia<\/em> Merret Sealey var. <em>microphylla)<\/em> \u0111\u1ec1u s\u1ed1ng trong r\u1eebng th\u1ee9 sinh ngh&egrave;o ki\u1ec7t, \u0111\u1ed9 t&agrave;n che 0,5 &ndash; 0,6 (Ba V&igrave;) v&agrave; 0,5 &ndash; 0,65 (S\u01a1n \u0110\u1ed9ng), c&oacute; \u0111\u1ed9 cao 500m (Ba V&igrave;) v&agrave; 300 &ndash; 350m (S\u01a1n \u0110\u1ed9ng) so v\u1edbi m\u1eb7t bi\u1ec3n.&nbsp;<\/font><\/span><\/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\/9091"}],"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=9091"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9091\/revisions"}],"predecessor-version":[{"id":10545,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9091\/revisions\/10545"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9091"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9091"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9091"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}