{"id":698,"date":"2017-03-09T14:36:51","date_gmt":"2017-03-09T07:36:51","guid":{"rendered":"http:\/\/demo.prc.maiatech.com.vn\/?p=698"},"modified":"2017-03-23T09:05:07","modified_gmt":"2017-03-23T02:05:07","slug":"ket-qua-nghien-cuu-tuyen-chon-giong-che-moi-nang-suat-cao-tu-cac-dong-che-lai-cuu-phoi-o-dieu-kien-phu-ho-phu-tho","status":"publish","type":"post","link":"https:\/\/prc.org.vn\/?p=698","title":{"rendered":"K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u tuy\u1ec3n ch\u1ecdn gi\u1ed1ng ch\u00e8 m\u1edbi n\u0103ng su\u1ea5t cao t\u1eeb c\u00e1c d\u00f2ng ch\u00e8 lai c\u1ee9u ph\u00f4i \u1edf \u0111i\u1ec1u ki\u1ec7n Ph\u00fa H\u1ed9, Ph\u00fa Th\u1ecd"},"content":{"rendered":"\n\n\n\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Ch\u1ecdn t\u1ea1o gi\u1ed1ng ch\u00e8 m\u1edbi theo ph\u01b0\u01a1ng ph\u00e1p truy\u1ec1n th\u1ed1ng l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh k\u00e9o d\u00e0i nhi\u1ec1u n\u0103m, th\u1eadm ch\u00ed v\u00e0i ch\u1ee5c n\u0103m, bao g\u1ed3m nhi\u1ec1u giai \u0111o\u1ea1n kh\u00e1c nhau. Giai \u0111o\u1ea1n chi\u1ebfm nhi\u1ec1u th\u1eddi gian nh\u1ea5t l\u00e0 giai \u0111o\u1ea1n ch\u1ecdn l\u1ecdc c\u00e1 th\u1ec3 v\u00e0 \u0111\u00e1nh gi\u00e1 kh\u1ea3o nghi\u1ec7m tr\u00ean \u0111\u1ed3ng ru\u1ed9ng, qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u01b0\u1ee3c t\u00ednh t\u1eeb l\u00fac tr\u1ed3ng c\u00e2y con ra ngo\u00e0i \u0111\u1ed3ng ru\u1ed9ng \u0111\u1ebfn khi c\u00e2y th\u00e0nh th\u1ee5c v\u00e0 bi\u1ec3u hi\u1ec7n \u0111\u1ea7y \u0111\u1ee7 t\u1ea5t c\u1ea3 c\u00e1c t\u00ednh tr\u1ea1ng v\u1ed1n c\u00f3 c\u1ee7a n\u00f3. D\u1ef1a v\u00e0o nh\u1eefng t\u00ednh tr\u1ea1ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1, tuy\u1ec3n ch\u1ecdn nh\u1eefng d\u00f2ng, gi\u1ed1ng t\u1ed1t c\u00f3 n\u0103ng su\u1ea5t cao, ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t v\u00e0 mang nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m mong mu\u1ed1n, tr\u00ean c\u01a1 s\u1edf \u0111\u00f3 ph\u00e1t tri\u1ec3n nh\u00e2n r\u1ed9ng \u0111\u01b0a v\u00e0o s\u1ea3n xu\u1ea5t.<\/p>\n

\u1ee8ng d\u1ee5ng C\u00f4ng ngh\u1ec7 sinh h\u1ecdc l\u00e0 m\u1ed9t h\u01b0\u1edbng m\u1edbi trong c\u00f4ng t\u00e1c gi\u1ed1ng ch\u00e8 \u1edf n\u01b0\u1edbc ta hi\u1ec7n nay. Nh\u1edd \u0111\u00f3, th\u1eddi gian ch\u1ecdn t\u1ea1o gi\u1ed1ng ch\u00e8 m\u1edbi s\u1ebd \u0111\u01b0\u1ee3c r\u00fat ng\u1eafn do \u0111\u1ecbnh h\u01b0\u1edbng \u0111\u01b0\u1ee3c gen mong mu\u1ed1n v\u00e0 nu\u00f4i c\u1ea5y m\u00f4 s\u1edbm t\u1ea1o ra s\u1ed1 l\u01b0\u1ee3ng nhi\u1ec1u c\u00e2y l\u00e0 ngu\u1ed3n v\u1eadt li\u1ec7u kh\u1edfi \u0111\u1ea7u c\u00f3 gi\u00e1 tr\u1ecb ph\u1ee5c v\u1ee5 cho \u0111\u00e1nh gi\u00e1, ch\u1ecdn l\u1ecdc. Nh\u1eb1m s\u1edbm t\u1ea1o \u0111\u01b0\u1ee3c gi\u1ed1ng ch\u00e8 m\u1edbi ph\u1ee5c v\u1ee5 s\u1ea3n xu\u1ea5t, ch\u00fang t\u00f4i \u0111\u00e1nh gi\u00e1 d\u00f2ng ch\u00e8 m\u1edbi \u01b0u th\u1ebf lai \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1eb1ng k\u1ef9 thu\u1eadt ch\u1ec9 th\u1ecb ph\u00e2n t\u1eed v\u00e0 c\u00f4ng ngh\u1ec7 c\u1ee9u ph\u00f4i ngay t\u1eeb giai \u0111o\u1ea1n nu\u00f4i c\u1ea5y trong ph\u00f2ng th\u00ed nghi\u1ec7m, \u1edf giai \u0111o\u1ea1n v\u01b0\u1eddn \u01b0\u01a1m v\u00e0 tr\u00ean \u0111\u1ed3ng ru\u1ed9ng. N\u1ed9i dung b\u00e0i b\u00e1o tr\u00ecnh b\u00e0y k\u1ebft qu\u1ea3 th\u00ed nghi\u1ec7m \u0111\u00e1nh gi\u00e1 \u0111\u1ed3ng ru\u1ed9ng c\u00e2y ch\u00e8 con 1 n\u0103m tu\u1ed5i.<\/p>\n

V\u1eadt li\u1ec7u nghi\u00ean c\u1ee9u: l\u00e0 9 d\u00f2ng ch\u00e8 lai c\u1ee9u ph\u00f4i tri\u1ec3n v\u1ecdng \u0111\u01b0\u1ee3c nh\u00e2n b\u1eb1ng k\u1ef9 thu\u1eadt nu\u00f4i c\u1ea5y m\u00f4, g\u1ed3m c\u00e1c d\u00f2ng: CNS-1; CNS-2; CNS-3; CNS-4; CNS-5; CNS-6; CNS-7; CNS-8; CNS-9, \u0111\u01b0\u1ee3c t\u1ea1o ra t\u1eeb c\u00e1c c\u1eb7p b\u1ed1 m\u1eb9 c\u00f3 kho\u1ea3ng c\u00e1ch di truy\u1ec1n xa nhau v\u00e0 \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ecdn l\u1ecdc t\u1eeb c\u00e1c c\u00e1 th\u1ec3 \u1edf giai \u0111o\u1ea1n nu\u00f4i c\u1ea5y m\u00f4 v\u00e0 giai \u0111o\u1ea1n v\u01b0\u1eddn \u01b0\u01a1m khi c\u00e2y ch\u00e8 con \u0111\u01b0\u1ee3c m\u1ed9t n\u0103m tu\u1ed5i.<\/p>\n

N\u1ed9i dung nghi\u00ean c\u1ee9u: Th\u00ed nghi\u1ec7m g\u1ed3m 12 c\u00f4ng th\u1ee9c v\u1edbi 9 d\u00f2ng c\u1ee9u ph\u00f4i tri\u1ec3n v\u1ecdng v\u00e0 3 gi\u1ed1ng \u0111\u1ed1i ch\u1ee9ng: LDP1<\/sub>, LDP2<\/sub>, Shan Ch\u1ea5t Ti\u1ec1n (CT). Tr\u1ed3ng th\u00e1ng 11 n\u0103m 2010, tr\u00ean \u0111\u1ea5t d\u1ed1c 10 \u0111\u1ed9, \u0111\u00e3 \u0111\u01b0\u1ee3c san\u00a0 th\u00e0nh b\u0103ng ph\u1eb3ng ki\u1ec3u b\u1eadc thang r\u1ed9ng 6m theo \u0111\u01b0\u1eddng \u0111\u1ed3ng m\u1ee9c. Ch\u00e8 tr\u1ed3ng theo h\u00e0ng k\u00e9p, h\u00e0ng l\u1edbn c\u00e1ch nhau 1,8m h\u00e0ng k\u00e9p c\u00e1ch nhau 0,4m, m\u1eadt \u0111\u1ed9 tr\u1ed3ng 2,2 v\u1ea1n c\u00e2y\/ha. K\u1ef9 thu\u1eadt gieo tr\u1ed3ng, ch\u0103m s\u00f3c n\u01b0\u01a1ng ch\u00e8 theo quy tr\u00ecnh.<\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p nghi\u00ean c\u1ee9u: B\u1ed1 tr\u00ed th\u00ed nghi\u1ec7m v\u1edbi 3 l\u1ea7n nh\u1eafc l\u1ea1i theo kh\u1ed1i ng\u1eabu nhi\u00ean \u0111\u1ea7y \u0111\u1ee7, di\u1ec7n t\u00edch m\u1ed7i \u00f4 th\u00ed nghi\u1ec7m 5m2<\/sup>, di\u1ec7n t\u00edch to\u00e0n th\u00ed nghi\u1ec7m (c\u1ea3 di\u1ec7n t\u00edch b\u1ea3o v\u1ec7) 340 m2<\/sup>.<\/p>\n

C\u00e1c ch\u1ec9 ti\u00eau nghi\u00ean c\u1ee9u: T\u1ef7 l\u1ec7 s\u1ed1ng sau tr\u1ed3ng, \u0111\u1eb7c \u0111i\u1ec3m n\u00f4ng, sinh h\u1ecdc, s\u00e2u b\u1ec7nh c\u00e2y ch\u00e8 lai c\u1ee9u ph\u00f4i giai \u0111o\u1ea1n 1 n\u0103m tu\u1ed5i. \u0110\u00e1nh gi\u00e1 c\u00e1c ch\u1ec9 ti\u00eau theo c\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u00f4ng d\u1ee5ng v\u1ec1 nghi\u00ean c\u1ee9u ch\u00e8. Nh\u1eb1m s\u1edbm nh\u1eadn bi\u1ebft kh\u1ea3 n\u0103ng n\u0103ng su\u1ea5t, khi ch\u00e8 th\u00ed nghi\u1ec7m \u0111\u01b0\u1ee3c 9 th\u00e1ng tu\u1ed5i (th\u00e1ng 8\/2011) b\u1eaft \u0111\u1ea7u h\u00e1i t\u1ea1o h\u00ecnh l\u1ee9a \u0111\u1ea7u ti\u00ean, c\u1ee9 30-32 ng\u00e0y sau h\u00e1i l\u1ee9a ti\u1ebfp theo. T\u1eeb th\u00e1ng 8\/2011 \u0111\u1ebfn th\u00e1ng 11\/2011 c\u00f3 3 l\u1ee9a h\u00e1i \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 n\u0103ng su\u1ea5t l\u00fd thuy\u1ebft v\u00e0 n\u0103ng su\u1ea5t th\u1ef1c thu. B\u00fap ch\u00e8 h\u00e1i 1 t\u00f4m + 3 l\u00e1 non, c\u00e2n kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 quy ra ha.<\/p>\n

\u00a0\u00a0 <\/strong>K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u cho th\u1ea5y:
\n1\/ C\u00e1c d\u00f2ng ch\u00e8 lai c\u1ee9u ph\u00f4i \u0111\u1ec1u c\u00f3 kh\u1ea3 n\u0103ng th\u00edch \u1ee9ng v\u1edbi m\u00f4i tr\u01b0\u1eddng, s\u1ee9c ch\u1ed1ng ch\u1ecbu t\u1ed1t v\u00e0 t\u1ef7 l\u1ec7 s\u1ed1ng sau 6 th\u00e1ng tr\u1ed3ng cao \u0111\u1ea1t 95-97%.<\/p>\n

2\/ C\u00e1c d\u00f2ng ch\u00e8 lai c\u1ee9u ph\u00f4i \u0111\u1ec1u c\u00f3 s\u1ee9c sinh tr\u01b0\u1edfng v\u00e0 ph\u00e1t tri\u1ec3n kh\u1ecfe h\u01a1n c\u00e1c gi\u1ed1ng ch\u00e8 \u0111\u1ed1i ch\u1ee9ng. V\u01b0\u1ee3t tr\u1ed9i nh\u1ea5t l\u00e0 c\u00e1c d\u00f2ng CNS-1, CNS-3, CNS-6 v\u00e0 CNS-8, \u0111\u01b0\u1eddng k\u00ednh g\u1ed1c \u0111\u1ec1u > 2 cm, chi\u1ec1u cao h\u1ea7u h\u1ebft\u00a0 > 1 m, s\u1ed1 c\u00e0nh c\u1ea5p 1 \u0111\u1ea1t t\u1eeb 21 \u2013 23 c\u00e0nh v\u00e0 c\u00e0nh c\u1ea5p 2 t\u1eeb 50-82 c\u00e0nh.<\/p>\n

3\/ C\u00e1c d\u00f2ng ch\u00e8 lai c\u1ee9u ph\u00f4i \u0111\u1ec1u c\u00f3 n\u0103ng su\u1ea5t cao h\u01a1n c\u00e1c gi\u1ed1ng \u0111\u1ed1i ch\u1ee9ng, n\u0103ng su\u1ea5t th\u1ef1c thu cao nh\u1ea5t l\u00e0 c\u00e1c d\u00f2ng CNS-6 (1197,33 kg\/ha); CNS-1 (1149,33 kg\/ha); CNS-3 (1076,18 kg\/ha); CNS-8 (1007,51 kg\/ha); trung b\u00ecnh l\u00e0 c\u00e1c gi\u1ed1ng CNS-9, CNS-2, CNS-7.<\/p>\n

4\/ B\u01b0\u1edbc \u0111\u1ea7u tuy\u1ec3n ch\u1ecdn \u0111\u01b0\u1ee3c 4 d\u00f2ng ch\u00e8 lai c\u1ee9u ph\u00f4i c\u00f3 \u01b0u th\u1ebf lai v\u01b0\u1ee3t tr\u1ed9i v\u1ec1 kh\u1ea3 n\u0103ng th\u00edch nghi, s\u1ee9c sinh tr\u01b0\u1edfng ph\u00e1t tri\u1ec3n v\u00e0 kh\u1ea3 n\u0103ng cho n\u0103ng su\u1ea5t cao \u0111\u00f3 l\u00e0 c\u00e1c d\u00f2ng CNS-1, CNS-3, CNS-6 v\u00e0 CNS-8. C\u00e1c d\u00f2ng ch\u00e8 \u0111ang ti\u1ebfp t\u1ee5c \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 c\u00e1c ch\u1ec9 ti\u00eau c\u1ea7n thi\u1ebft.
\nXem b\u00e1o c\u00e1o chi ti\u1ebft t\u1ea1i \u0111\u00e2y<\/a><\/td>\n<\/tr>\n

Cao Th\u1ecb Huy\u1ec1n & cs<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Ch\u1ecdn t\u1ea1o gi\u1ed1ng ch\u00e8 m\u1edbi theo ph\u01b0\u01a1ng ph\u00e1p truy\u1ec1n th\u1ed1ng l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh k\u00e9o d\u00e0i nhi\u1ec1u n\u0103m, th\u1eadm<\/p>\n","protected":false},"author":4,"featured_media":466,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[47],"tags":[],"_links":{"self":[{"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/posts\/698"}],"collection":[{"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=698"}],"version-history":[{"count":1,"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/posts\/698\/revisions"}],"predecessor-version":[{"id":699,"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/posts\/698\/revisions\/699"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=\/wp\/v2\/media\/466"}],"wp:attachment":[{"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=698"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=698"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prc.org.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=698"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}