Ph\u1ea1m Th\u1ebf D\u0169ng, Nguy\u1ec5n Tr\u1ea7n Nguy\u00ean, Ng\u00f4 V\u0103n Ng\u1ecdc <\/p>\n
Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam<\/i> <\/p>\n<\/p>\n
T\u00f3m t\u1eaft <\/p>\n
Kh\u1ea3o nghi\u1ec7m h\u1eadu th\u1ebf d\u00f2ng v\u00f4 t\u00ednh c\u00e2y keo \u0111\u01b0\u1ee3c ch\u1ecdn t\u1eeb c\u00e1c c\u00e2y lai t\u1ef1 nhi\u00ean trong c\u00e1c qu\u1ea7n th\u1ee5 r\u1eebng tr\u1ed3ng \u1edf T\u00e2n T\u1ea1o, Th\u00e0nh ph\u1ed1 H\u1ed3 Ch\u00ed Minh. K\u1ebft qu\u1ea3 th\u00ed nghi\u1ec7m \u0111\u00e3 m\u1ed9t l\u1ea7n n\u1eefa ch\u1ee9ngminhc\u00e1c d\u00f2ng keo lai sinh tr\u01b0\u1edfng v\u01b0\u1ee3t tr\u1ed9i h\u01a1n so v\u1edbi hai lo\u00e0i c\u00e2y b\u1ed1 m\u1eb9 trong c\u00f9ng m\u1ed9t \u0111i\u1ec1u ki\u1ec7n sinh tr\u01b0\u1edfng v\u00e0 \u0111\u1ed3ng th\u1eddi ch\u1ecdn ra 4 d\u00f2ng keo lai s\u1ed1 1, 3, 4, 8 trong 10 d\u00f2ng keo lai kh\u1ea3o nghi\u1ec7m c\u00f3 sinh tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh, chi\u1ec1u cao v\u00e0 tr\u1eef l\u01b0\u1ee3ng t\u1ed1t nh\u1ea5t \u0111\u1ec3 ti\u1ebfp t\u1ee5c kh\u1ea3o nghi\u1ec7m ch\u1ecdn c\u00e1c d\u00f2ng \u01b0u vi\u1ec7t kh\u00e1c. Tr\u01b0\u1edbc m\u1eaft c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c d\u00f2ng n\u00e0y l\u00e0m v\u1eadt li\u1ec7u tr\u1ed3ng r\u1eebng. <\/p>\n
T\u1eeb kho\u00e1: Kh\u1ea3o nghi\u1ec7m h\u1eadu th\u1ebf, Keo lai <\/p>\n<\/p>\n
M\u1edf \u0111\u1ea7u<\/i><\/i> <\/p>\n
C\u00e2y Keo lai ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c tr\u1ed3ng r\u1ed9ng r\u00e3i \u1edf c\u00e1c t\u1ec9nh ph\u00eda Nam, vi\u1ec7c ch\u1ecdn b\u1ed5 sung m\u1ed9t s\u1ed1 c\u00e1c d\u00f2ng keo lai cho n\u0103ng su\u1ea5t cao c\u00f3 \u00fd ngh\u0129a r\u1ea5t quan tr\u1ecdng trong c\u1ea3i thi\u1ec7n gi\u1ed1ng c\u00e2y tr\u1ed3ng. <\/p>\n
M\u1ee5c \u0111\u00edch th\u00ed nghi\u1ec7m <\/p>\n
Kh\u1ea3o nghi\u1ec7m h\u1eadu th\u1ebf d\u00f2ng v\u00f4 t\u00ednh c\u00e2y keo \u0111\u01b0\u1ee3c ch\u1ecdn t\u1eeb c\u00e1c c\u00e2y lai t\u1ef1 nhi\u00ean trong c\u00e1c qu\u1ea7n th\u1ee5 r\u1eebng tr\u1ed3ng \u1edf T\u00e2n T\u1ea1o, TP. H\u1ed3 Ch\u00ed Minh. <\/p>\n
V\u1eadt li\u1ec7u v\u00e0 ph\u01b0\u01a1ng ph\u00e1p th\u00ed nghi\u1ec7m <\/p>\n
-C\u00e2y keo lai t\u1ef1 nhi\u00ean \u0111\u01b0\u1ee3c ch\u1ecdn c\u00f3 c\u00e1c ti\u00eau chu\u1ea9n v\u1ec1 \u0111\u1ed9 v\u01b0\u1ee3t \u0111\u01b0\u1eddng k\u00ednh, chi\u1ec1u cao v\u00e0 c\u00f3 h\u00ecnh th\u00e2n th\u1eb3ng h\u01a1n so v\u1edbi c\u00e1c c\u00e2y lai kh\u00e1c trong qu\u1ea7n th\u1ee5. <\/p>\n
-C\u01b0a ngang g\u1ed1c cao c\u00e1ch m\u1eb7t \u0111\u1ea5t 25-30cm. Sau h\u01a1n 1 th\u00e1ng c\u1eaft ch\u1ed3i non ti\u1ebfn h\u00e0nh gi\u00e2m hom t\u1ea1o c\u00e2y con \u0111\u1ec3 tr\u1ed3ng th\u00ed nghi\u1ec7m. <\/p>\n
-C\u00e2y th\u00ed nghi\u1ec7m l\u00e0 c\u00e2y gi\u00e2m hom c\u00f3 chi\u1ec1u cao 25-30cm, c\u00e2y kho\u1ebb m\u1ea1nh kho\u1ea3ng 2, 5 th\u00e1ng tu\u1ed5i, \u01b0\u01a1m trong b\u1ea7u nylon c\u00f3 h\u1ec7 r\u1ec5 ph\u00e1t tri\u1ec3n t\u1ed1t. C\u00e2y \u0111\u1ed1i ch\u1ee9ng l\u00e0 c\u00e2y gieo t\u1eeb h\u1ea1t c\u1ee7a hai lo\u00e0i c\u00e2y b\u1ed1 v\u00e0 m\u1eb9 l\u00e0 A.mangium<\/i> v\u00e0A.auriculiformis<\/i>. <\/p>\n
-Kh\u1ea3o nghi\u1ec7m \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n tr\u00ean \u0111\u1ea5t x\u00e1m v\u00e0ng c\u00f3 t\u1ea7ng k\u1ebft v\u00f3n n\u00f4ng. \u0110\u1eb7c tr\u01b0ng ph\u1eabu di\u1ec7n \u0111\u1ea5t ch\u1ec9 ra t\u1ea1i b\u1ea3ng 1. <\/p>\n","protected":false},"excerpt":{"rendered":"
Kh\u1ea3o nghi\u1ec7m h\u1eadu th\u1ebf d\u00f2ng v\u00f4 t\u00ednh c\u00e2y keo \u0111\u01b0\u1ee3c ch\u1ecdn t\u1eeb c\u00e1c c\u00e2y lai t\u1ef1 nhi\u00ean trong c\u00e1c qu\u1ea7n th\u1ee5 r\u1eebng tr\u1ed3ng \u1edf T\u00e2n T\u1ea1o, Th\u00e0nh ph\u1ed1 H\u1ed3 Ch\u00ed Minh. K\u1ebft qu\u1ea3 th\u00ed nghi\u1ec7m \u0111\u00e3 m\u1ed9t l\u1ea7n n\u1eefa ch\u1ee9ng minh c\u00e1c d\u00f2ng keo lai sinh tr\u01b0\u1edfng v\u01b0\u1ee3t tr\u1ed9i h\u01a1n so v\u1edbi hai lo\u00e0i c\u00e2y b\u1ed1 m\u1eb9 trong c\u00f9ng m\u1ed9t \u0111i\u1ec1u ki\u1ec7n sinh tr\u01b0\u1edfng v\u00e0 \u0111\u1ed3ng th\u1eddi ch\u1ecdn ra 4 d\u00f2ng keo lai s\u1ed1 1, 3, 4, 8 trong 10 d\u00f2ng keo lai kh\u1ea3o nghi\u1ec7m c\u00f3 sinh tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh, chi\u1ec1u cao v\u00e0 tr\u1eef l\u01b0\u1ee3ng t\u1ed1t nh\u1ea5t \u0111\u1ec3 ti\u1ebfp t\u1ee5c kh\u1ea3o nghi\u1ec7m ch\u1ecdn c\u00e1c d\u00f2ng \u01b0u vi\u1ec7t kh\u00e1c. Tr\u01b0\u1edbc m\u1eaft c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c d\u00f2ng n\u00e0y l\u00e0m v\u1eadt li\u1ec7u tr\u1ed3ng r\u1eebng. <\/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\/8919"}],"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=8919"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8919\/revisions"}],"predecessor-version":[{"id":10375,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/8919\/revisions\/10375"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=8919"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=8919"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=8919"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}