{"id":15094,"date":"2015-05-05T09:39:40","date_gmt":"2015-05-05T02:39:40","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/?p=15094"},"modified":"2015-05-05T09:43:20","modified_gmt":"2015-05-05T02:43:20","slug":"bao-cao-ket-qua-de-tai-nghien-cuu-cac-bien-phap-ky-thuat-gay-trong-mot-so-loai-cay-ban-dia-trai-ly-garcinia-fagraeoides-a-chev-vu-huong-cinnamomum-balansae-lec-va-sua-dalbergia-tonkinensis-prai","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/bao-cao-ket-qua-de-tai-nghien-cuu-cac-bien-phap-ky-thuat-gay-trong-mot-so-loai-cay-ban-dia-trai-ly-garcinia-fagraeoides-a-chev-vu-huong-cinnamomum-balansae-lec-va-sua-dalbergia-tonkinensis-prai\/","title":{"rendered":"B\u00e1o c\u00e1o k\u1ebft qu\u1ea3 \u0111\u1ec1 t\u00e0i: Nghi\u00ean c\u1ee9u c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt g\u00e2y tr\u1ed3ng m\u1ed9t s\u1ed1 lo\u00e0i c\u00e2y b\u1ea3n \u0111\u1ecba Trai L\u00fd (Garcinia fagraeoides A.Chev), V\u00f9 H\u01b0\u01a1ng (Cinnamomum balansae Lec) v\u00e0 S\u01b0a (Dalbergia tonkinensis Prain) nh\u1eb1m ph\u1ee5c h\u1ed3i c\u00e1c tr\u1ea1ng th\u00e1i r\u1eebng ngh\u00e8o ki\u1ec7t t\u1ea1i T\u00e2y B\u1eafc"},"content":{"rendered":"
\n

H\u00e0 V\u0103n Ti\u1ec7p<\/em><\/p>\n

I. \u0110\u1eb6T V\u1ea4N \u0110\u1ec0<\/b><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/b>Ph\u00e2n theo v\u00f9ng sinh th\u00e1i L\u00e2m nghi\u1ec7p th\u00ec T\u00e2y B\u1eafc l\u00e0 v\u00f9ng n\u00fai non hi\u1ec3m tr\u1edf v\u00e0 r\u1ed9ng l\u1edbn, bao g\u1ed3m 4 t\u1ec9nh H\u00f2a B\u00ecnh, S\u01a1n La, \u0110i\u1ec7n Bi\u00ean v\u00e0 Lai Ch\u00e2u. Tr\u01b0\u1edbc nh\u1eefng n\u0103m 1954, v\u00f9ng n\u00e0y \u0111\u01b0\u1ee3c bao ph\u1ee7 b\u1edfi r\u1eebng nguy\u00ean sinh v\u1edbi \u0111\u1ed9 che ph\u1ee7 c\u1ee7a r\u1eebng l\u1edbn h\u01a1n 45%, tr\u1ea3i qua th\u1eddi gian r\u1eebng t\u1ef1 nhi\u00ean c\u1ee7a khu v\u1ef1c \u0111\u00e3 b\u1ecb t\u00e0n ph\u00e1 nghi\u00eam tr\u1ecdng, \u0111\u1ebfn nh\u1eefng n\u0103m 1990, \u0111\u1ed9 che ph\u1ee7 c\u1ee7a r\u1eebng ch\u1ec9 c\u00f2n l\u1ea1i 9% \u0111\u1ebfn 14% (Tr\u1ea7n \u0110\u00ecnh \u0110\u1ea1i v\u00e0 c\u1ed9ng s\u1ef1, 1990). R\u1eebng t\u1ef1 nhi\u00ean kh\u00f4ng nh\u1eefng b\u1ecb gi\u1ea3m v\u1ec1 di\u1ec7n t\u00edch m\u00e0 c\u00f2n b\u1ecb suy tho\u00e1i nghi\u00eam tr\u1ecdng v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng, t\u1eeb r\u1eebng nguy\u00ean sinh gi\u1ea7u tr\u1eef l\u01b0\u1ee3ng g\u1ed7, \u0111a d\u1ea1ng v\u1ec1 lo\u00e0i tr\u1edf th\u00e0nh r\u1eebng th\u1ee9 sinh ngh\u00e8o ki\u1ec7t, r\u1eebng t\u00e1i sinh sau canh t\u00e1c n\u01b0\u01a1ng r\u1eaby. H\u1eadu qu\u1ea3 l\u00e0, \u0111\u1ea5t \u0111ai b\u1ecb x\u00f3i m\u00f2n r\u1eeda tr\u00f4i, m\u00f4i tr\u01b0\u1eddng sinh th\u00e1i b\u1ecb \u00f4 nhi\u1ec5m v\u00e0 thay \u0111\u1ed5i, th\u1ea3m h\u1ecda thi\u00ean nhi\u00ean nh\u01b0 l\u0169 qu\u00e9t, s\u1ea1c l\u1edf \u0111\u1ea5t th\u01b0\u1eddng xuy\u00ean x\u1ea3y ra, l\u00e0m t\u1ed5n h\u1ea1i r\u1ea5t l\u1edbn \u0111\u1ebfn con ng\u01b0\u1eddi v\u00e0 t\u00e0i s\u1ea3n. Tr\u1ed3ng ph\u1ee5c h\u1ed3i r\u1eebng v\u00f9ng T\u00e2y B\u1eafc b\u1eb1ng vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c lo\u00e0i c\u00e2y g\u1ed7 b\u1ea3n \u0111\u1ecba c\u00f3 gi\u00e1 tr\u1ecb l\u00e0 m\u1ed9t h\u01b0\u1edbng ph\u1ee5c h\u1ed3i b\u1ec1n v\u1eefng v\u00e0 hi\u1ec7u qu\u1ea3. Ba lo\u00e0i c\u00e2y b\u1ea3n \u0111\u1ecba Trai l\u00fd (Garcinia fagraeoides<\/i> A.Chev), thu\u1ed9c h\u1ecd m\u0103ng c\u1ee5t (Clusiaceae<\/i> Lindl), V\u00f9 h\u01b0\u01a1ng hay c\u00f2n g\u1ecdi l\u00e0 G\u00f9 H\u01b0\u01a1ng (Cinnamomum balanseae <\/i>Lec), thu\u1ed9c h\u1ecd Long n\u00e3o (Lauraceae) v\u00e0 S\u01b0a hay c\u00f2n g\u1ecdi l\u00e0 Tr\u1eafc Th\u1ed1i, Hu\u1ef3nh \u0110\u00e0n (Dalbergia tonkinensis <\/i>Prain), thu\u1ed9c h\u1ecd \u0111\u1eadu (Leguminosae) l\u00e0 c\u00e1c lo\u00e0i c\u00e2y b\u1ea3n \u0111\u1ecba, g\u1ed7 l\u1edbn, c\u00f3 gi\u00e1 tr\u1ecb cao v\u1ec1 sinh th\u00e1i v\u00e0 kinh t\u1ebf. C\u00e1c lo\u00e0i c\u00e2y n\u00e0y \u0111\u00e3 b\u1ecb khai th\u00e1c ki\u1ec7t trong r\u1eebng t\u1ef1 nhi\u00ean, kh\u00f3 c\u00f3 kh\u1ea3 n\u0103ng t\u1ef1 ph\u1ee5c h\u1ed3i. Do v\u1eady, tri\u1ec3n khai \u0111\u1ec1 t\u00e0i <\/i><\/b>\u201cNghi\u00ean c\u1ee9u c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt g\u00e2y tr\u1ed3ng m\u1ed9t s\u1ed1 lo\u00e0i c\u00e2y b\u1ea3n \u0111\u1ecba Trai L\u00fd (Garcinia fagraeoides<\/i> A.Chev), V\u00f9 H\u01b0\u01a1ng (Cinnamomum balansae <\/i>Lec) v\u00e0 S\u01b0a (Dalbergia tonkinensis <\/i>Prain) nh\u1eb1m ph\u1ee5c h\u1ed3i c\u00e1c tr\u1ea1ng th\u00e1i r\u1eebng ngh\u00e8o ki\u1ec7t t\u1ea1i T\u00e2y B\u1eafc\u201d l\u00e0 c\u1ea7n thi\u1ebft, g\u00f3p ph\u1ea7n ph\u1ee5c h\u1ed3i r\u1eebng t\u1ef1 nhi\u00ean t\u1ea1i v\u00f9ng T\u00e2y B\u1eafc.<\/p>\n

III. M\u1ee4C TI\u00caU, N\u1ed8I DUNG V\u00c0 PH\u01af\u01a0NG PH\u00c1P NGHI\u00caN C\u1ee8U<\/b><\/p>\n

3.1. M\u1ee5c ti\u00eau<\/b><\/p>\n

–<\/b> X\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt g\u00e2y tr\u1ed3ng c\u00e1c lo\u00e0i Trai L\u00fd, V\u00f9 H\u01b0\u01a1ng, S\u01b0a nh\u1eb1m ph\u1ee5c h\u1ed3i c\u00e1c tr\u1ea1ng th\u00e1i r\u1eebng ngh\u00e8o ki\u1ec7t t\u1ea1i T\u00e2y B\u1eafc.<\/b><\/p>\n

–<\/b> X\u00e2y d\u1ef1ng \u0111\u01b0\u1ee3c h\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt g\u00e2y tr\u1ed3ng ph\u1ee5c h\u1ed3i c\u00e1c tr\u1ea1ng th\u00e1i r\u1eebng ngh\u00e8o ki\u1ec7t cho 3 lo\u00e0i Trai l\u00fd, V\u00f9 h\u01b0\u01a1ng, S\u01b0a.<\/p>\n

3.2. N\u1ed9i dung nghi\u00ean c\u1ee9u<\/b><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/b>\u0110\u1ec1 t\u00e0i t\u1eadp trung nghi\u00ean c\u1ee9u c\u00e1c n\u1ed9i dung: (1) \u0111i\u1ec1u tra \u0111\u1eb7c \u0111i\u1ec3m ph\u00e2n b\u1ed1, t\u00e1i sinh lo\u00e0i Trai l\u00fd, (2) k\u1ef9 thu\u1eadt gieo \u01b0\u01a1m t\u1ea1o c\u00e2y con, (3) bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt tr\u1ed3ng, (4) x\u00e2y d\u1ef1ng h\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt g\u00e2y tr\u1ed3ng.<\/p>\n

\"15-05-05<\/a><\/p>\n

3.3. Ph\u01b0\u01a1ng ph\u00e1p nghi\u00ean c\u1ee9u<\/b><\/p>\n

a. Ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u tra<\/b><\/p>\n

Ch\u1ecdn \u0111\u1ecba \u0111i\u1ec3m \u0111i\u1ec1u tra \u0111\u1ea1i di\u1ec7n cho sinh th\u00e1i c\u1ee7a m\u1ed7i t\u1ec9nh, t\u1ea1i \u0111i\u1ec3m \u0111i\u1ec1u tra (x\u00e3) l\u1eadp 2 \u00d4TC \u0111i\u1ec3n h\u00ecnh di\u1ec7n t\u00edch 2.000m2<\/sup> (40x50m) t\u1ea1i c\u00e1c l\u00e2m ph\u1ea7n c\u00f3 ph\u00e2n b\u1ed1 lo\u00e0i c\u00e2y nghi\u00ean c\u1ee9u, sau \u0111\u00f3 ti\u1ebfn h\u00e0nh \u0111i\u1ec1u tra t\u1ea7ng c\u00e2y cao, \u0111i\u1ec1u tra t\u00e1i sinh t\u1ea1i c\u00e1c \u00f4 d\u1ea1ng b\u1ea3n 25m2\u00a0 <\/sup>(5m \u00b4 5m), 4 \u00f4 \u1edf 4 g\u00f3c v\u00e0 1 \u00f4 \u1edf gi\u1eefa \u00d4TC.\u00a0 X\u00e2y d\u1ef1ng c\u00f4ng th\u1ee9c t\u1ed5 th\u00e0nh lo\u00e0i c\u00e2y theo c\u00f4ng th\u1ee9c.<\/p>\n

Trong \u0111\u00f3: Ki l\u00e0 H\u1ec7 s\u1ed1 t\u1ed5 th\u00e0nh lo\u00e0i c\u00e2y th\u1ee9 i. Ni l\u00e0 S\u1ed1 c\u00e2y c\u1ee7a lo\u00e0i th\u1ee9 i, \u00a0N l\u00e0 t\u1ed5ng s\u1ed1 c\u00e2y trong \u00f4 ti\u00eau chu\u1ea9n. N\u1ebfu Ki\u2265 0,5 th\u00ec lo\u00e0i \u0111\u00f3 \u0111\u01b0\u1ee3c tham gia v\u00e0o c\u00f4ng th\u1ee9c t\u1ed5 th\u00e0nh. N\u1ebfu Ki\u22640,5 th\u00ec lo\u00e0i \u0111\u00f3 kh\u00f4ng \u0111\u01b0\u1ee3c tham gia v\u00e0o c\u00f4ng th\u1ee9c t\u1ed5 th\u00e0nh.<\/p>\n

+ X\u00e1c \u0111\u1ecbnh m\u1eadt \u0111\u1ed9 c\u00e2y t\u00e1i sinh.<\/p>\n

Trong \u0111\u00f3: N l\u00e0 M\u1eadt \u0111\u1ed9 c\u00e2y con Trai l\u00fd t\u00e1i sinh (c\u00e2y\/ha), n l\u00e0 S\u1ed1 c\u00e2y con Trai l\u00fd t\u00e1i sinh \u0111i\u1ec1u tra \u0111\u01b0\u1ee3c trong \u00f4 ti\u00eau chu\u1ea9n, S l\u00e0 di\u1ec7n t\u00edch \u00f4 \u0111i\u1ec1u tra t\u00e1i sinh (m2<\/sup>).<\/p>\n

b. Nghi\u00ean c\u1ee9u k\u1ef9 thu\u1eadt gieo \u01b0\u01a1m v\u00e0 gi\u00e2m hom<\/b><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/b>\u0110\u1ec1 t\u00e0i ti\u1ebfn h\u00e0nh gieo \u01b0\u01a1m b\u1eb1ng h\u1ea1t \u0111\u1ed1i v\u1edbi lo\u00e0i Trai l\u00fd, \u00a0S\u01b0a v\u00e0 nghi\u00ean c\u1ee9u \u1ea3nh h\u01b0\u1edfng c\u1ee7a che b\u00f3ng \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y con trong giai \u0111o\u1ea1n v\u01b0\u1eddn \u01b0\u01a1m. C\u00f2n \u0111\u1ed1i v\u1edbi V\u00f9 h\u01b0\u01a1ng ti\u1ebfn h\u00e0nh nghi\u00ean c\u1ee9u gi\u00e2m hom. C\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m gieo \u01b0\u01a1m v\u00e0 gi\u00e2m hom \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed theo kh\u1ed1i ng\u1eabu nhi\u00ean \u0111\u1ea7y \u0111\u1ee7 v\u1edbi 3 l\u1ea7n l\u1eb7p, dung l\u01b0\u1ee3ng m\u1eabu m\u1ed7i l\u1ea7n l\u1eb7p n >30. L\u1eadp bi\u1ec3u \u0111o \u0111\u1ebfm s\u1ed1 li\u1ec7u \u0111\u1ecbnh k\u1ef3 ph\u00f9 h\u1ee3p theo t\u1eebng th\u00ed nghi\u1ec7m.<\/p>\n

c. Nghi\u00ean c\u1ee9u c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt tr\u1ed3ng<\/b><\/p>\n

Ph\u00e1t d\u1ecdn th\u1ef1c b\u00ec theo b\u0103ng r\u1ed9ng 2m, tr\u00ean b\u0103ng ch\u1eb7t \u0111\u1ec3 ch\u1eeba l\u1ea1i c\u00e2y t\u00e1i sinh m\u1ee5c \u0111\u00edch, t\u00f9y theo m\u1eadt \u0111\u1ed9 tr\u1ed3ng m\u00e0 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 r\u1ed9ng c\u1ee7a b\u0103ng ch\u1eeba. Cu\u1ed1c h\u1ed1 \u1edf g\u1eefa b\u0103ng ch\u1eb7t, k\u00edch th\u01b0\u1edbc cu\u1ed1c h\u1ed1 l\u00e0 40 x 40 x 40cm. H\u1ed1 \u0111\u01b0\u1ee3c cu\u1ed1c tr\u01b0\u1edbc 1 th\u00e1ng khi tr\u1ed3ng c\u00e2y.Ti\u1ebfn h\u00e0nh tr\u1ed3ng v\u00e0o th\u00e1ng 5-7 h\u00e0ng n\u0103m. Chi\u1ec1u cao c\u00e2y con trung b\u00ecnh 35cm. Sau khi tr\u1ed3ng 1 th\u00e1ng ti\u1ebfn h\u00e0nh ki\u1ec3m tra v\u00e0 tr\u1ed3ng d\u1eb7m c\u00e2y ch\u1ebft. H\u00e0ng n\u0103m ti\u1ebfn h\u00e0nh ch\u0103m s\u00f3c 2 l\u1ea7n, l\u1ea7n m\u1ed9t v\u00e0o \u0111\u1ea7u m\u00f9a m\u01b0a t\u1eeb th\u00e1ng 5-6 h\u00e0ng n\u0103m, v\u00e0 l\u1ea7n 2 v\u00e0o cu\u1ed1i m\u00f9a m\u01b0a v\u00e0 \u0111\u1ea7u m\u00f9a kh\u00f4 v\u00e0o th\u00e1ng 10-12 h\u00e0ng n\u0103m. Khi ch\u0103m s\u00f3c, d\u00f9ng dao ph\u00e1t c\u1ecf, d\u00e2y leo, b\u1ee5i r\u1eadm, \u1edf b\u0103ng ch\u1eb7t. D\u00f9ng cu\u1ed1c x\u1edbi v\u00e0 vun g\u1ed1c c\u00e2y, \u0111\u01b0\u1eddng k\u00ednh vun 1m. B\u1ed1 tr\u00ed c\u00e1c th\u00ed nghi\u1ec7m v\u1ec1 tr\u1ea1ng th\u00e1i r\u1eebng tr\u1ed3ng ph\u1ee5c h\u1ed3i, m\u1eadt \u0111\u1ed9 tr\u1ed3ng v\u00e0\u00a0 ph\u00e2n b\u00f3n. Th\u00ed nghi\u1ec7m b\u1ed1 tr\u00ed \u00a0theo kh\u1ed1i ng\u1eabu nhi\u00ean \u0111\u1ea7y \u0111\u1ee7, 3 l\u1ea7n l\u1eb7p v\u1edbi n> 30, \u0111\u00e1nh d\u1ea5u 32 c\u00e2y trong m\u1ed7i l\u1ea7n l\u1eb7p \u0111\u1ec3\u00a0 \u0111o \u0111\u1ebfm Hvn, Do, 6 th\u00e1ng 1 l\u1ea7n.<\/p>\n

d. Ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd s\u1ed1 li\u1ec7u<\/b><\/p>\n

C\u00e1c s\u1ed1 li\u1ec7u thu th\u1eadp \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1eb1ng ph\u1ea7n m\u1ec1m Excel 7.0 v\u00e0 ph\u1ea7n m\u1ec1m th\u1ed1ng k\u00ea \u00a0SPSS phi\u00ean b\u1ea3n 13.0.<\/p>\n

III. K\u1ebeT QU\u1ea2 NGHI\u00caN C\u1ee8U V\u00c0 TH\u1ea2O LU\u1eacN<\/b><\/p>\n

5.1. \u0110<\/b>\u1eb7c \u0111i\u1ec3m ph\u00e2n b\u1ed1 t\u1ef1 nhi\u00ean lo\u00e0i Trai l\u00fd<\/b><\/p>\n

a. C\u00f4ng th\u1ee9c t\u1ed5 th\u00e0nh lo\u00e0i<\/b><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/b>B\u1ea3ng 1: C\u00f4ng th\u1ee9c t\u1ed5 th\u00e0nh lo\u00e0i c\u00e2y Trai l\u00fd \u1edf v\u00f9ng T\u00e2y B\u1eafc<\/b><\/p>\n\n\n\n\n\n\n\n\n\n
TT<\/b><\/td>\n\u0110\u1ecba \u0111i\u1ec3m<\/b><\/td>\nC\u00f4ng th\u1ee9c t\u1ed5 th\u00e0nh<\/b><\/td>\n<\/tr>\n
1<\/td>\nHuy\u1ec7n M\u1ed9c – Ch\u00e2u-S\u01a1n La.<\/td>\n1,5Trl <\/b>+ 1,2\u00d4r + 0,5Ngh + 0,9Nv + 0,7 Va + 0,6 Cm + 1,1Lm + 1,3 Mt + 2,2 Lk.<\/td>\n<\/tr>\n
2<\/td>\nHuy\u1ec7n Ph\u00f9 Y\u00ean – S\u01a1n La.<\/td>\n1,7Trl<\/b> + 1,4\u00d4r + 0,4Ngh + 0,6Nv + 0,5 Va + 0,7 Cm + 1,3Lm + 1,1 Mt + 2,3 Lk.<\/td>\n<\/tr>\n
3<\/td>\nHuy\u1ec7n Than Uy\u00ean – Lai Ch\u00e2u.<\/td>\n1,5Lm +1,4Trl<\/b> + 1,0\u00d4r + 0,6Ngh + 0,7Nv + 0,8 Va + 0,5 Cm \u00a0+ 1,4 Mt + 2,1 Lk.<\/td>\n<\/tr>\n
4<\/td>\nHuy\u1ec7n S\u00ecn H\u1ed3 – Lai Ch\u00e2u.<\/td>\n1,6Trl<\/b> + 1,0\u00d4r + 0,4Ngh + 0,9Nv + 1,0 Va + 0,4 Cm + 1,1Lm + 1,1 Mt + 2,5 Lk.<\/td>\n<\/tr>\n
5<\/td>\nHuy\u1ec7n M\u01b0\u1eddng Ch\u00e0 – \u0110i\u1ec7n Bi\u00ean.<\/td>\n1,3Trl<\/b> + 0,8\u00d4r + 0,6Ngh + 0,5Nv + 0,4 Va + 0,5 Cm + 1,2Lm + 1,0 Mt + 3,7 Lk.<\/td>\n<\/tr>\n
6<\/td>\nHuy\u1ec7n \u0110i\u1ec7n Bi\u00ean \u0110\u00f4ng – \u0110i\u1ec7n Bi\u00ean.<\/td>\n1,5Lm +1,4Trl<\/b> + 1,0\u00d4r + 0,5Ngh + 0,7Nv + 0,7 Va + 0,6 Cm + 1,1 Mt + 2,7 Lk.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

(Ghi ch\u00fa<\/b>: Trl – Trai l\u00fd, \u00d4r-\u00f4 r\u00f4, Ngh-nghi\u1ebfn, Nv-Nh\u00f2 v\u00e0ng, Va-V\u00e0ng anh, Cm-Ch\u00f2i m\u00f2i, Lm -L\u00f2ng mang, Mt – M\u1ea1y t\u00e8o, Lk-c\u00e1c lo\u00e0i kh\u00e1c).<\/i><\/p>\n

T\u1eeb c\u00f4ng th\u1ee9c t\u1ed5 th\u00e0nh lo\u00e0i c\u00e2y cho th\u1ea5y, c\u00e1c lo\u00e0i c\u00e2y ph\u00e2n b\u00f4\u0301 c\u00f9ng v\u1edbi lo\u00e0i Trai l\u00fd bao g\u1ed3m c\u00e1c lo\u00e0i ch\u00ednh \u0111\u00f3 l\u00e0 lo\u00e0i \u00d4 r\u00f4, Nghi\u1ebfn, Nh\u00f2 v\u00e0ng, V\u00e0ng anh, Ch\u00f2i m\u00f2i, L\u00f2ng mang, M\u1ea1y t\u00e8o. Nhi\u1ec1u n\u01a1i, lo\u00e0i Trai l\u00fd chi\u1ebfm \u01b0u th\u1ebf v\u1edbi h\u1ec7 s\u1ed1 t\u1ed5 th\u00e0nh lo\u00e0i dao \u0111\u1ed9ng t\u1eeb 1,3-1,6 t\u1ea1i c\u00e1c \u0111\u1ecba \u0111i\u1ec3m \u0111i\u1ec1u tra, ti\u1ebfp sau l\u00e0 c\u00e1c lo\u00e0i\u00a0 M\u1ea1y t\u00e8o, L\u00f2ng mang, \u00d4 r\u00f4, Nghi\u1ebfn, Nh\u00f2 v\u00e0ng, V\u00e0ng anh. \u00a0Do m\u1ee9c \u0111\u1ed9 khai th\u00e1c t\u1ea1i c\u00e1c \u0111\u1ecba \u0111i\u1ec3m \u0111i\u1ec1u tra kh\u00e1c nhau, n\u00ean c\u00f4ng th\u1ee9c t\u1ed5 th\u00e0nh lo\u00e0i Trai l\u00fd kh\u00e1c nhau t\u1ea1i c\u00e1c \u0111\u1ecba \u0111i\u1ec3m \u0111i\u1ec1u tra.<\/p>\n

b. \u0110\u1eb7c \u0111i\u1ec3m t\u00e1i sinh t\u1ef1 nhi\u00ean loa\u0300i Trai Ly\u0301<\/b><\/p>\n

B\u1ea3ng 2: K\u1ebft qu\u1ea3 \u0111i\u1ec1u tra t\u00e1i sinh c\u00e2y Trai l\u00fd \u1edf v\u00f9ng T\u00e2y B\u1eafc<\/p>\n\n\n\n\n\n\n\n\n\n
TT<\/b><\/td>\n\u0110\u1ecba \u0111i\u1ec3m<\/b><\/td>\nM\u1eadt \u0111\u1ed9 c\u00e2y t\u00e1i sinh (c\u00e2y\/ha)<\/b><\/td>\nNgu\u1ed3n g\u1ed1c c\u00e2y t\u00e1i sinh<\/b><\/td>\nChi\u1ec1u cao c\u00e2y t\u00e1i sinh (H<1m)<\/b><\/td>\nChi\u1ec1u cao c\u00e2y t\u00e1i sinh (H>1m)<\/b><\/td>\n<\/tr>\n
1<\/td>\nHuy\u1ec7n M\u1ed9c Ch\u00e2u – S\u01a1n La<\/td>\n\n

720<\/p>\n<\/td>\n

\n

H\u1ea1t<\/p>\n<\/td>\n

\n

510<\/p>\n<\/td>\n

\n

210<\/p>\n<\/td>\n<\/tr>\n

2<\/td>\nHuy\u1ec7n Ph\u00f9 Y\u00ean – S\u01a1n La<\/td>\n\n

670<\/p>\n<\/td>\n

\n

H\u1ea1t<\/p>\n<\/td>\n

\n

495<\/p>\n<\/td>\n

\n

175<\/p>\n<\/td>\n<\/tr>\n

3<\/td>\nHuy\u1ec7n Than Uy\u00ean – Lai Ch\u00e2u<\/td>\n\n

610<\/p>\n<\/td>\n

\n

H\u1ea1t<\/p>\n<\/td>\n

\n

430<\/p>\n<\/td>\n

\n

180<\/p>\n<\/td>\n<\/tr>\n

4<\/td>\nHuy\u1ec7n S\u00ecn H\u1ed3 – Lai Ch\u00e2u<\/td>\n\n

540<\/p>\n<\/td>\n

\n

H\u1ea1t<\/p>\n<\/td>\n

\n

325<\/p>\n<\/td>\n

\n

215<\/p>\n<\/td>\n<\/tr>\n

5<\/td>\nHuy\u1ec7n M\u01b0\u1eddng Ch\u00e0 – \u0110i\u1ec7n Bi\u00ean<\/td>\n\n

460<\/p>\n<\/td>\n

\n

H\u1ea1t<\/p>\n<\/td>\n

\n

295<\/p>\n<\/td>\n

\n

165<\/p>\n<\/td>\n<\/tr>\n

6<\/td>\nHuy\u1ec7n \u0110i\u1ec7n Bi\u00ean \u0110\u00f4ng – \u0110i\u1ec7n Bi\u00ean<\/td>\n\n

560<\/p>\n<\/td>\n

\n

H\u1ea1t<\/p>\n<\/td>\n

\n

380<\/p>\n<\/td>\n

\n

180<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Trai l\u00fd t\u00e1i sinh ch\u1ee7 y\u1ebfu b\u0103\u0300ng h\u1ea1t, m\u1eadt \u0111\u1ed9 t\u00e1i sinh c\u1ee7a Trai l\u00fd t\u01b0\u01a1ng \u0111\u1ed1i cao dao \u0111\u1ed9ng t\u1eeb 460 – 720 c\u00e2y\/ha, c\u00e2y c\u00f3 tri\u1ec3n vo\u0323ng sinh tr\u01b0\u1edfng tham gia v\u00e0o t\u1ed5 th\u00e0nh lo\u00e0i \u00a0chi\u1ebfm t\u1eeb 26,1% \u0111\u1ebfn 39,8% trong t\u1ed5ng s\u1ed1 c\u00e2y t\u00e1i sinh. C\u00e2y t\u00e1i sinh th\u01b0\u1eddng m\u1ecdc \u1edf nh\u1eefng n\u01a1i c\u00f3 \u0111\u1ed9 \u1ea9m cao, \u0111\u1ea5t nhi\u1ec1u m\u00f9n, n\u01a1i r\u1eebng c\u00f3 \u0111\u1ed9 che ph\u1ee7 (>60%). \u0110i\u1ec1u n\u00e0y cho th\u1ea5y khi gieo \u01b0\u01a1m c\u00e2y gi\u1ed1ng \u1edf giai \u0111o\u1ea1n v\u01b0\u1eddn \u01b0\u01a1m c\u1ea7n ph\u1ea3i che b\u00f3ng cho c\u00e2y con.<\/p>\n

5.2. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u gieo \u01b0\u01a1m<\/b><\/p>\n

a. \u1ea2nh h\u01b0\u1edfng c\u1ee7a c\u00f4ng th\u1ee9c x\u1eed l\u00fd h\u1ea1t \u0111\u1ebfn t\u1ef7 l\u1ec7 n\u1ea3y m\u1ea7m<\/b><\/p>\n

B\u1ea3ng 3: \u1ea3nh h\u01b0\u1edfng c\u1ee7a x\u1eed l\u00fd h\u1ea1t \u0111\u1ebfn n\u1ea3y m\u1ea7m h\u1ea1t Trai L\u00fd<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Ph\u01b0\u01a1ng th\u1ee9c x\u1eed l\u00fd\u00a0 h\u1ea1t<\/b><\/td>\nL\u1ea7n l\u1eb7p<\/b><\/td>\nS\u1ed1 h\u1ea1t th\u00ed nghi\u1ec7m<\/b><\/td>\nS\u1ed1 h\u1ea1t n\u1ea3y m\u1ea7m<\/b>(TB)<\/b><\/td>\nT\u1ef7 l\u1ec7 % n\u1ea3y m\u1ea7m c\u1ee7a h\u1ea1t<\/b><\/td>\n<\/tr>\n
CT1<\/p>\n

(N\u01b0\u1edbc \u1ea5m, 40 \u0111\u1ed9 C, ng\u00e2m 12 gi\u1edd)<\/td>\n

\n

1<\/p>\n<\/td>\n

\n

200<\/p>\n<\/td>\n

\n

175<\/p>\n<\/td>\n

\n

87,5<\/p>\n<\/td>\n<\/tr>\n

\n

2<\/p>\n<\/td>\n

\n

200<\/p>\n<\/td>\n

\n

156<\/p>\n<\/td>\n

\n

78,0<\/p>\n<\/td>\n<\/tr>\n

\n

3<\/p>\n<\/td>\n

\n

200<\/p>\n<\/td>\n

\n

177<\/p>\n<\/td>\n

\n

88,5<\/p>\n<\/td>\n<\/tr>\n

\n

\u00a0<\/b><\/p>\n<\/td>\n

\n

Trung b\u00ecnh<\/b><\/p>\n<\/td>\n

\n

169,6<\/b><\/p>\n<\/td>\n

\n

84,8<\/b><\/p>\n<\/td>\n<\/tr>\n

\u00a0\u00a0\u00a0\u00a0 CT2(N\u01b0\u1edbc l\u1ea1nh, ng\u00e2m 12 gi\u1edd)<\/td>\n\n

1<\/p>\n<\/td>\n

\n

200<\/p>\n<\/td>\n

\n

130<\/p>\n<\/td>\n

\n

65,0<\/p>\n<\/td>\n<\/tr>\n

\n

2<\/p>\n<\/td>\n

\n

200<\/p>\n<\/td>\n

\n

145<\/p>\n<\/td>\n

\n

72,5<\/p>\n<\/td>\n<\/tr>\n

\n

3<\/p>\n<\/td>\n

\n

200<\/p>\n<\/td>\n

\n

147<\/p>\n<\/td>\n

\n

73,5<\/p>\n<\/td>\n<\/tr>\n

\n

\u00a0<\/b><\/p>\n<\/td>\n

\n

Trung b\u00ecnh<\/b><\/p>\n<\/td>\n

\n

141,0<\/b><\/p>\n<\/td>\n

\n

70,5<\/b><\/p>\n<\/td>\n<\/tr>\n

CT3<\/p>\n

(\u0110\u1ed1i ch\u1ee9ng)<\/td>\n

\n

1<\/p>\n<\/td>\n

\n

200<\/p>\n<\/td>\n

\n

45<\/p>\n<\/td>\n

\n

22,5<\/p>\n<\/td>\n<\/tr>\n

\n

2<\/p>\n<\/td>\n

\n

200<\/p>\n<\/td>\n

\n

39<\/p>\n<\/td>\n

\n

19,5<\/p>\n<\/td>\n<\/tr>\n

\n

3<\/p>\n<\/td>\n

\n

200<\/p>\n<\/td>\n

\n

57<\/p>\n<\/td>\n

\n

28,5<\/p>\n<\/td>\n<\/tr>\n

\n

\u00a0<\/b><\/p>\n<\/td>\n

\n

Trung b\u00ecnh<\/b><\/p>\n<\/td>\n

\n

48,0<\/b><\/p>\n<\/td>\n

\n

23,5<\/b><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

S\u1ed1 li\u1ec7u b\u1ea3ng tr\u00ean cho th\u1ea5y h\u1ea1t Trai L\u00fd c\u00f3 th\u1ec3 n\u1ea3y m\u1ea7m khi h\u1ea1t kh\u00f4ng c\u1ea7n x\u1eed l\u00fd, nh\u01b0ng t\u1ef7 l\u1ec7 n\u1ea3y m\u1ea7m c\u1ee7a h\u1ea1t th\u1ea5p ch\u1ec9 \u0111\u1ea1t trung b\u00ecnh 23,5%, trong khi \u0111\u00f3 x\u1eed l\u00fd h\u1ea1t b\u1eb1ng n\u01b0\u1edbc \u1ea5m (450<\/sup>c), c\u00f3 t\u1ef7 l\u1ec7 h\u1ea1t n\u1ea3y m\u1ea7m cao nh\u1ea5t \u0111\u1ea1t 84,8%, h\u1ea1t ng\u00e2m trong n\u01b0\u1edbc l\u1ea1nh c\u00f3 t\u1ef7 l\u1ec7 n\u1ea9y m\u1ea7m 70,5%. C\u00e1c c\u00f4ng th\u1ee9c x\u1eed l\u00fd h\u1ea1t kh\u00e1c nhau c\u00f3 \u1ea3nh h\u01b0\u1edfng kh\u00e1c nhau \u0111\u1ebfn t\u1ef7 l\u1ec7 n\u1ea9y m\u1ea7m c\u1ee7a h\u1ea1t kh\u00f4ng?. K\u1ebft qu\u1ea3 ph\u00e2n t\u00edch ANOVA m\u1ed9t nh\u00e2n t\u1ed1 cho th\u1ea5y t\u1ef7 l\u1ec7 h\u1ea1t n\u1ea3y m\u1ea7m gi\u1eefa c\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m x\u1eed l\u00fd h\u1ea1t c\u00f3 s\u1ef1 sai kh\u00e1c r\u00f5 r\u1ec7t (F=62,5 > Fcrit= 9,55). \u0110i\u1ec1u \u0111\u00f3 cho th\u1ea5y c\u00e1c c\u00f4ng th\u1ee9c x\u1eed l\u00fd h\u1ea1t \u0111\u00e3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ef7 l\u1ec7 n\u1ea3y m\u1ea7m c\u1ee7a h\u1ea1t v\u00e0 trong 3 c\u00f4ng th\u1ee9c x\u1eed l\u00fd h\u1ea1t th\u00ec CT1 x\u1eed l\u00fd b\u1eb1ng n\u01b0\u1edbc \u1ea5m cho t\u1ef7 l\u1ec7 n\u1ea3y m\u1ea7m c\u1ee7a h\u1ea1t cao nh\u1ea5t \u0111\u1ea1t 84,8%. Nh\u01b0 v\u1eady trong c\u00f4ng t\u00e1c gieo \u01b0\u01a1m h\u1ea1t Trai l\u00fd, khi x\u1eed l\u00fd h\u1ea1t tr\u01b0\u1edbc khi gieo \u01b0\u01a1m c\u1ea7n ng\u00e2m h\u1ea1t trong n\u01b0\u1edbc \u1ea5m 400<\/sup>C, trong 12 ti\u1ebfng sau \u0111\u00f3 v\u1edbt h\u1ea1t ra, \u1ee7 h\u1ea1t trong c\u00e1t \u1ea9m, s\u1ebd cho k\u1ebft qu\u1ea3 h\u1ea1t n\u1ea3y m\u1ea7m cao nh\u1ea5t.<\/p>\n

\u00a0b. \u1ea2nh\u00a0 h\u01b0\u1edfng c\u1ee7a che b\u00f3ng \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u00e2y con Trai l\u00fd.<\/b><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/b>B\u1ea3ng 4: \u1ea3nh h\u01b0\u1edfng che b\u00f3ng \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y con Trai L\u00fd<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
C\u00f4ng th\u1ee9c TN<\/td>\n\n

Tu\u1ed5i c\u00e2y con (th\u00e1ng) v\u00e0 chi\u1ec1u cao trung b\u00ecnh H(cm)<\/b><\/p>\n<\/td>\n<\/tr>\n

\n

1<\/b><\/p>\n<\/td>\n

\n

2<\/b><\/p>\n<\/td>\n

\n

3<\/b><\/p>\n<\/td>\n

\n

4<\/b><\/p>\n<\/td>\n

\n

5<\/b><\/p>\n<\/td>\n

\n

6<\/b><\/p>\n<\/td>\n<\/tr>\n

CT1(0%)<\/td>\n4,8<\/td>\n\n

7,0<\/p>\n<\/td>\n

\n

8,2<\/p>\n<\/td>\n

\n

11,0<\/p>\n<\/td>\n

\n

13,5<\/p>\n<\/td>\n

\n

17,5<\/p>\n<\/td>\n<\/tr>\n

CT2(che 25%)<\/td>\n5,0<\/td>\n\n

7,2<\/p>\n<\/td>\n

\n

8,5<\/p>\n<\/td>\n

\n

10,5<\/p>\n<\/td>\n

\n

15,0<\/p>\n<\/td>\n

\n

20,1<\/p>\n<\/td>\n<\/tr>\n

CT3(che 50%)<\/td>\n5,2<\/td>\n\n

8,0<\/p>\n<\/td>\n

\n

9,6<\/p>\n<\/td>\n

\n

13,8<\/p>\n<\/td>\n

\n

17,0<\/p>\n<\/td>\n

\n

21,4<\/p>\n<\/td>\n<\/tr>\n

CT4(che 75%)<\/td>\n5,3<\/td>\n\n

9,5<\/p>\n<\/td>\n

\n

13,0<\/p>\n<\/td>\n

\n

15,6<\/p>\n<\/td>\n

\n

19,5<\/p>\n<\/td>\n

\n

25,3<\/p>\n<\/td>\n<\/tr>\n

<\/td>\n\n

\u0110\u01b0\u1eddng k\u00ednh c\u00e2y con (Do(mm)<\/sub>)<\/b><\/p>\n<\/td>\n<\/tr>\n

CT1(che 0%)<\/td>\n\n

2,29<\/p>\n<\/td>\n

\n

2,41<\/p>\n<\/td>\n

\n

2,53<\/p>\n<\/td>\n

\n

2,88<\/p>\n<\/td>\n

\n

3,18<\/p>\n<\/td>\n

\n

3,71<\/p>\n<\/td>\n<\/tr>\n

CT2(che 25%)<\/td>\n\n

2,26<\/p>\n<\/td>\n

\n

2,32<\/p>\n<\/td>\n

\n

2,47<\/p>\n<\/td>\n

\n

2,62<\/p>\n<\/td>\n

\n

3,03<\/p>\n<\/td>\n

\n

3,65<\/p>\n<\/td>\n<\/tr>\n

CT3(che 50%)<\/td>\n\n

2,32<\/p>\n<\/td>\n

\n

2,47<\/p>\n<\/td>\n

\n

2,56<\/p>\n<\/td>\n

\n

2,91<\/p>\n<\/td>\n

\n

3,12<\/p>\n<\/td>\n

\n

3,79<\/p>\n<\/td>\n<\/tr>\n

CT4(che75%)<\/td>\n\n

2,35<\/p>\n<\/td>\n

\n

2,53<\/p>\n<\/td>\n

\n

2,65<\/p>\n<\/td>\n

\n

2,94<\/p>\n<\/td>\n

\n

3,32<\/p>\n<\/td>\n

\n

3,94<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

S\u1ed1 li\u1ec7u trong b\u1ea3ng cho th\u1ea5y c\u00e2y con Trai l\u00fd sinh tr\u01b0\u1edfng ch\u1eadm v\u1ec1 chi\u1ec1u cao, sau 6 th\u00e1ng gieo \u01b0\u01a1m chi\u1ec1u cao trung b\u00ecnh c\u1ee7a c\u00e2y con ch\u1ec9 \u0111\u1ea1t 25,3cm \u1edf CT4 che b\u00f3ng 75% v\u00e0 sinh tr\u01b0\u1edfng chi\u1ec1u cao trung b\u00ecnh ch\u1ec9 \u0111\u1ea1t 17,5cm \u1edf CT \u0111\u1ed1i ch\u1ee9ng kh\u00f4ng che b\u00f3ng. K\u1ebft qu\u1ea3 ph\u00e2n t\u00edch ANOVA m\u1ed9t nh\u00e2n t\u1ed1 khi c\u00e2y 6 th\u00e1ng tu\u1ed5i cho th\u1ea5y c\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m c\u00f3 \u1ea3nh h\u01b0\u1edfng r\u00f5 \u0111\u1ebfn sinh tr\u01b0\u1edfng chi\u1ec1u cao c\u1ee7a c\u00e2y (F> Fcrit) v\u00e0 c\u00f4ng th\u1ee9c che b\u00f3ng 75% c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ed9i nh\u1ea5t \u0111\u1ebfn sinh tr\u01b0\u1edfng chi\u1ec1u cao, c\u00e2y \u0111\u1ea1t chi\u1ec1u cao trung b\u00ecnh l\u1edbn nh\u1ea5t 25,3cm. C\u00f2n \u0111\u1ed1i v\u1edbi sinh tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh, trung b\u00ecnh \u0111\u1ea1t t\u1eeb 3,71mm-3,94mm trong c\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m che b\u00f3ng khi c\u00e2y \u0111\u01b0\u1ee3c 6 th\u00e1ng tu\u1ed5i. K\u1ebft qu\u1ea3 ph\u00e2n t\u00edch ANOVA m\u1ed9t nh\u00e2n t\u1ed1 khi c\u00e2y 6 th\u00e1ng tu\u1ed5i cho th\u1ea5y c\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m che b\u00f3ng kh\u00f4ng c\u00f3 \u1ea3nh h\u01b0\u1edfng r\u00f5 r\u1ec7t \u0111\u1ebfn sinh tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a c\u00e2y con (F= 1,11 < Fcrit = 2,67). Nh\u01b0 v\u1eady, khi gieo \u01b0\u01a1m Trai l\u00fd c\u1ea7n che b\u00f3ng 75% cho c\u00e2y con.<\/p>\n

c. \u1ea2nh h\u01b0\u1edfng x\u1eed l\u00fd h\u1ea1t \u0111\u1ebfn t\u1ef7 l\u1ec7 n\u1ea3y m\u1ea7m c\u1ee7a h\u1ea1t S\u01b0a.<\/b><\/p>\n

B\u1ea3ng 5: \u1ea3nh h\u01b0\u1edfng c\u1ee7a x\u1eed l\u00fd h\u1ea1t \u0111\u1ebfn n\u1ea9y m\u1ea7m h\u1ea1t S\u01b0a<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Ph\u01b0\u01a1ng th\u1ee9c x\u1eed l\u00fd\u00a0 h\u1ea1t<\/b><\/td>\nL\u1ea7n l\u1eb7p<\/b><\/td>\nS\u1ed1 h\u1ea1t th\u00ed nghi\u1ec7m<\/b><\/td>\nS\u1ed1 h\u1ea1t n\u1ea3y m\u1ea7m<\/b>(TB)<\/b><\/td>\nT\u1ef7 l\u1ec7 % n\u1ea3y m\u1ea7m<\/b><\/td>\n<\/tr>\n
CT1(N\u01b0\u1edbc \u1ea5m 40 \u0111\u1ed9 C, ng\u00e2m 12 gi\u1edd)<\/td>\n\n

1<\/p>\n<\/td>\n

\n

200<\/p>\n<\/td>\n

\n

183<\/p>\n<\/td>\n

\n

91,5<\/p>\n<\/td>\n<\/tr>\n

\n

2<\/p>\n<\/td>\n

\n

200<\/p>\n<\/td>\n

\n

185<\/p>\n<\/td>\n

\n

92,5<\/p>\n<\/td>\n<\/tr>\n

\n

3<\/p>\n<\/td>\n

\n

200<\/p>\n<\/td>\n

\n

189<\/p>\n<\/td>\n

\n

94,5<\/p>\n<\/td>\n<\/tr>\n

\u00a0<\/b><\/td>\n\n

Trung b\u00ecnh<\/b><\/p>\n<\/td>\n

\n

169,3<\/b><\/p>\n<\/td>\n

\n

92,8<\/b><\/p>\n<\/td>\n<\/tr>\n

CT2<\/p>\n

(N\u01b0\u1edbc l\u1ea1nh, ng\u00e2m 12 gi\u1edd)<\/td>\n

\n

1<\/p>\n<\/td>\n

\n

200<\/p>\n<\/td>\n

\n

152<\/p>\n<\/td>\n

\n

76,0<\/p>\n<\/td>\n<\/tr>\n

\n

2<\/p>\n<\/td>\n

\n

200<\/p>\n<\/td>\n

\n

157<\/p>\n<\/td>\n

\n

78,5<\/p>\n<\/td>\n<\/tr>\n

\n

3<\/p>\n<\/td>\n

\n

200<\/p>\n<\/td>\n

\n

144<\/p>\n<\/td>\n

\n

72,0<\/p>\n<\/td>\n<\/tr>\n

\u00a0<\/b><\/td>\n\n

Trung b\u00ecnh<\/b><\/p>\n<\/td>\n

\n

151,0<\/b><\/p>\n<\/td>\n

\n

75,5<\/b><\/p>\n<\/td>\n<\/tr>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 CT3(\u0110\u1ed1i ch\u1ee9ng<\/td>\n\n

1<\/p>\n<\/td>\n

\n

200<\/p>\n<\/td>\n

\n

121<\/p>\n<\/td>\n

\n

64,5<\/p>\n<\/td>\n<\/tr>\n

\n

2<\/p>\n<\/td>\n

\n

200<\/p>\n<\/td>\n

\n

114<\/p>\n<\/td>\n

\n

59,0<\/p>\n<\/td>\n<\/tr>\n

\n

3<\/p>\n<\/td>\n

\n

200<\/p>\n<\/td>\n

\n

124<\/p>\n<\/td>\n

\n

62,0<\/p>\n<\/td>\n<\/tr>\n

\u00a0<\/b><\/td>\n\n

Trung b\u00ecnh<\/b><\/p>\n<\/td>\n

\n

121,33<\/b><\/p>\n<\/td>\n

\n

61,83<\/b><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

S\u1ed1 li\u1ec7u trong b\u1ea3ng cho th\u1ea5y, t\u1ef7 l\u1ec7 n\u1ea9y m\u1ea7m trung b\u00ecnh c\u1ee7a h\u1ea1t t\u1ea1i c\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m \u0111\u1ec1u cao v\u00e0 dao \u0111\u1ed9ng t\u1eeb 61,83% \u0111\u1ebfn 92,8%, \u0111i\u1ec1u n\u00e0y cho th\u1ea5y h\u1ea1t S\u01b0a d\u1ec5 n\u1ea9y m\u1ea7m v\u00e0 c\u00e1c c\u00f4ng th\u1ee9c x\u1eed l\u00fd h\u1ea1t c\u00f3 t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn t\u1ef7 l\u1ec7 n\u1ea9y m\u1ea7m c\u1ee7a h\u1ea1t. C\u00f4ng th\u1ee9c x\u1eed l\u00fd h\u1ea1t b\u1eb1ng n\u01b0\u1edbc \u1ea5m, t\u1ef7 l\u1ec7 n\u1ea9y m\u1ea7m c\u1ee7a h\u1ea1t cao nh\u1ea5t \u0111\u1ea1t 92,8%, v\u00e0 75,5% t\u1ea1i c\u00f4ng th\u1ee9c x\u1eed l\u00fd h\u1ea1t b\u1eb1ng n\u01b0\u1edbc l\u1ea1nh, h\u1ea1t ch\u1ec9 n\u1ea9y m\u1ea7m 61,83% \u1edf c\u00f4ng th\u1ee9c \u0111\u1ed1i ch\u1ee9ng. \u0110\u1ec3 ki\u1ec3m tra c\u00e1c c\u00f4ng th\u1ee9c x\u1eed l\u00fd h\u1ea1t kh\u00e1c nhau c\u00f3 \u1ea3nh h\u01b0\u1edfng kh\u00e1c nhau \u0111\u1ebfn t\u1ef7 l\u1ec7 n\u1ea3y m\u1ea7m c\u1ee7a h\u1ea1t kh\u00f4ng?. K\u1ebft qu\u1ea3 ph\u00e2n t\u00edch ANOVA m\u1ed9t nh\u00e2n t\u1ed1 cho th\u1ea5y c\u00e1c c\u00f4ng th\u1ee9c x\u1eed l\u00fd h\u1ea1t kh\u00e1c nhau l\u00e0 c\u00f3 \u1ea3nh h\u01b0\u1edfng r\u00f5 r\u1ec7t \u0111\u1ebfn t\u1ef7 l\u1ec7 n\u1ea3y m\u1ea7m c\u1ee7a h\u1ea1t (F=59,3 > Fcrit =9,55) v\u00e0 c\u00f4ng th\u1ee9c x\u1eed l\u00fd h\u1ea1t b\u1eb1ng n\u01b0\u1edbc \u1ea5m 400<\/sup>C c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ed9i nh\u1ea5t \u0111\u1ebfn t\u1ef7 l\u1ec7 n\u1ea9y m\u1ea7m c\u1ee7a h\u1ea1t S\u01b0a khi gieo \u01b0\u01a1m v\u00e0 h\u1ea1t n\u1ea3y m\u1ea7m \u0111\u1ea1t t\u1ef7 l\u1ec7 trung b\u00ecnh cao nh\u1ea5t 92,8%. Nh\u01b0 v\u1eady, khi gieo \u01b0\u01a1m h\u1ea1t S\u01b0a, c\u1ea7n ng\u00e2m h\u1ea1t trong n\u01b0\u1edbc \u1ea5m 400<\/sup>C, trong 12 ti\u1ebfng sau \u0111\u00f3 v\u1edbt h\u1ea1t ra, hong h\u1ea1t cho r\u00e1o n\u01b0\u1edbc, \u0111\u00f3 \u1ee7 h\u1ea1t trong c\u00e1t \u1ea9m, s\u1ebd cho k\u1ebft qu\u1ea3 h\u1ea1t n\u1ea3y m\u1ea7m cao nh\u1ea5t.<\/p>\n

d. \u1ea2nh h\u01b0\u1edfng che b\u00f3ng \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u00e2y\u00a0 S\u01b0a.<\/b><\/p>\n

B\u1ea3ng 6: \u1ea3nh h\u01b0\u1edfng che b\u00f3ng \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y con S\u01b0a.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
Ch\u1ec9 ti\u00eau \u0111o \u0111\u1ebfm<\/b><\/td>\nC\u00f4ng th\u1ee9c che b\u00f3ng<\/b><\/td>\n\n

Th\u00e1ng tu\u1ed5i c\u00e2y con (Th\u00e1ng)<\/b><\/p>\n<\/td>\n<\/tr>\n

\n

1<\/b><\/p>\n<\/td>\n

\n

2<\/b><\/p>\n<\/td>\n

\n

3<\/b><\/p>\n<\/td>\n

\n

4<\/b><\/p>\n<\/td>\n

\n

5<\/b><\/p>\n<\/td>\n

\n

6<\/b><\/p>\n<\/td>\n<\/tr>\n

 <\/p>\n

Hvn<\/sub> (cm)<\/td>\n

CT1(0%)<\/td>\n\n

6,04<\/p>\n<\/td>\n

\n

10,99<\/p>\n<\/td>\n

\n

16,04<\/p>\n<\/td>\n

\n

19,97<\/p>\n<\/td>\n

\n

24,01<\/p>\n<\/td>\n

\n

28,15<\/p>\n<\/td>\n<\/tr>\n

CT2(25%)<\/td>\n\n

6,99<\/p>\n<\/td>\n

\n

13,02<\/p>\n<\/td>\n

\n

20,03<\/p>\n<\/td>\n

\n

26,04<\/p>\n<\/td>\n

\n

30,01<\/p>\n<\/td>\n

\n

35,17<\/p>\n<\/td>\n<\/tr>\n

CT3(50%)<\/td>\n\n

8,00<\/p>\n<\/td>\n

\n

15,01<\/p>\n<\/td>\n

\n

24,10<\/p>\n<\/td>\n

\n

32,01<\/p>\n<\/td>\n

\n

41,03<\/p>\n<\/td>\n

\n

49,11<\/p>\n<\/td>\n<\/tr>\n

CT4(75%)<\/td>\n\n

8,50<\/p>\n<\/td>\n

\n

16,04<\/p>\n<\/td>\n

\n

23,01<\/p>\n<\/td>\n

\n

31,02<\/p>\n<\/td>\n

\n

37,00<\/p>\n<\/td>\n

\n

42,18<\/p>\n<\/td>\n<\/tr>\n

\u0110g (mm)<\/sub><\/td>\nCT1(0%)<\/td>\n\n

1,43<\/p>\n<\/td>\n

\n

1,59<\/p>\n<\/td>\n

\n

2,00<\/p>\n<\/td>\n

\n

2,40<\/p>\n<\/td>\n

\n

3,91<\/p>\n<\/td>\n

\n

4,31<\/p>\n<\/td>\n<\/tr>\n

CT2(25%)<\/td>\n\n

1,08<\/p>\n<\/td>\n

\n

1,39<\/p>\n<\/td>\n

\n

2,09<\/p>\n<\/td>\n

\n

2,59<\/p>\n<\/td>\n

\n

4,40<\/p>\n<\/td>\n

\n

4,81<\/p>\n<\/td>\n<\/tr>\n

CT3(50%)<\/td>\n\n

1,10<\/p>\n<\/td>\n

\n

1,50<\/p>\n<\/td>\n

\n

2,30<\/p>\n<\/td>\n

\n

2,97<\/p>\n<\/td>\n

\n

5,21<\/p>\n<\/td>\n

\n

6,15<\/p>\n<\/td>\n<\/tr>\n

CT4(75%)<\/td>\n\n

1,21<\/p>\n<\/td>\n

\n

1,81<\/p>\n<\/td>\n

\n

2,39<\/p>\n<\/td>\n

\n

3,03<\/p>\n<\/td>\n

\n

4,90<\/p>\n<\/td>\n

\n

5,52<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Chi\u1ec1u cao trung b\u00ecnh c\u1ee7a c\u00e2y con cao nh\u1ea5t \u0111\u1ea1t 49,11cm \u1edf CT3 che b\u00f3ng 50% v\u00e0 ch\u1ec9 \u0111\u1ea1t 28,18 cm \u1edf CT1 \u0111\u1ed1i ch\u1ee9ng kh\u00f4ng che b\u00f3ng khi c\u00e2y con 6 th\u00e1ng tu\u1ed5i. K\u1ebft qu\u1ea3 ph\u00e2n t\u00edch ANOVA m\u1ed9t nh\u00e2n khi c\u00e2y 6 th\u00e1ng tu\u1ed5i cho th\u1ea5y s\u1ef1 kh\u00e1c nhau r\u00f5 r\u1ec7t v\u1ec1 sinh tr\u01b0\u1edfng chi\u1ec1u cao gi\u1eefa c\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m (F>Fcrit), c\u00f4ng th\u1ee9c che b\u00f3ng 50% c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ed9i nh\u1ea5t \u0111\u1ebfn sinh tr\u01b0\u1edfng chi\u1ec1u cao c\u1ee7a c\u00e2y con trong v\u01b0\u1eddn \u01b0\u01a1m. V\u1ec1 sinh \u0111\u01b0\u1eddng k\u00ednh, c\u00e2y sinh tr\u01b0\u1edfng t\u01b0\u01a1ng \u0111\u1ed1i ch\u1eadm, sau 6 th\u00e1ng gieo \u01b0\u01a1m c\u00e2y sinh tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh trung b\u00ecnh l\u1edbn nh\u1ea5t\u00a0 l\u00e0 6,15mm \u1edf c\u00f4ng th\u1ee9c che b\u00f3ng 50%. K\u1ebft qu\u1ea3 ph\u00e2n t\u00edch ANOVA m\u1ed9t nh\u00e2n t\u1ed1, cho th\u1ea5y khi c\u00e2y con 6 th\u00e1ng tu\u1ed5i kh\u00f4ng c\u00f3 s\u1ef1 sai kh\u00e1c r\u00f5 r\u1ec7t v\u1ec1 sinh tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh (F>Fcrit). Nh\u01b0 v\u1eady, c\u00e1c c\u00f4ng th\u1ee9c che b\u00f3ng ch\u1ec9 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn sinh tr\u01b0\u1edfng chi\u1ec1u cao m\u00e0 kh\u00f4ng c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn sinh tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh v\u00e0 c\u1ea7n che b\u00f3ng 50% cho c\u00e2y trong giai \u0111o\u1ea1n v\u01b0\u1eddn \u01b0\u01a1m.<\/p>\n

e. K\u1ebft qu\u1ea3 gi\u00e2m hom v\u1ee5 m\u00f9a m\u01b0a 5-8\/2008.<\/b><\/p>\n

B\u1ea3ng 7: T\u1ef7 l\u1ec7 ra r\u1ec5 \u1edf c\u00e1c c\u00f4ng th\u1ee9c gi\u00e2m hom V\u00f9 h\u01b0\u01a1ng m\u00f9a M\u01b0a.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u00a0 C\u00f4ng th\u1ee9c<\/b><\/td>\nN\u1ed3ng \u0111\u1ed9 (%)<\/b><\/td>\nS.L hom <\/b><\/td>\n\u00a0 Hom ra r\u1ec5<\/b><\/td>\nHom ra m\u00f4 s\u1eb9o<\/b><\/td>\n\u00a0\u00a0 Hom ch\u1ebft<\/b><\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\nN<\/b><\/td>\n\u00a0\u00a0 %<\/b><\/td>\nN<\/td>\n%<\/td>\nN<\/td>\n%<\/td>\n<\/tr>\n
\u0110\u1ed1i ch\u1ee9ng<\/td>\n<\/td>\n\n

90<\/p>\n<\/td>\n

\n

15<\/p>\n<\/td>\n

\n

16,7<\/p>\n<\/td>\n

\n

15<\/p>\n<\/td>\n

\n

16,6<\/p>\n<\/td>\n

\n

60<\/p>\n<\/td>\n

\n

66,6<\/p>\n<\/td>\n<\/tr>\n

\n

AIA<\/p>\n<\/td>\n

0,5<\/td>\n\n

90<\/p>\n<\/td>\n

\n

48<\/p>\n<\/td>\n

\n

53,3<\/p>\n<\/td>\n

\n

9<\/p>\n<\/td>\n

\n

10,0<\/p>\n<\/td>\n

\n

33<\/p>\n<\/td>\n

\n

36,7<\/p>\n<\/td>\n<\/tr>\n

\n

AIA<\/p>\n<\/td>\n

1,0<\/td>\n\n

90<\/p>\n<\/td>\n

\n

54<\/p>\n<\/td>\n

\n

60,0<\/p>\n<\/td>\n

\n

12<\/p>\n<\/td>\n

\n

13,3<\/p>\n<\/td>\n

\n

24<\/p>\n<\/td>\n

\n

26,7<\/p>\n<\/td>\n<\/tr>\n

\n

AIA<\/p>\n<\/td>\n

1,5<\/td>\n\n

90<\/p>\n<\/td>\n

\n

48<\/p>\n<\/td>\n

\n

53,3<\/p>\n<\/td>\n

\n

7<\/p>\n<\/td>\n

\n

7,8<\/p>\n<\/td>\n

\n

35<\/p>\n<\/td>\n

\n

38,9<\/p>\n<\/td>\n<\/tr>\n

\n

AIA<\/p>\n<\/td>\n

2,0<\/td>\n\n

90<\/p>\n<\/td>\n

\n

36<\/p>\n<\/td>\n

\n

40,0<\/p>\n<\/td>\n

\n

8<\/p>\n<\/td>\n

\n

8,9<\/p>\n<\/td>\n

\n

46<\/p>\n<\/td>\n

\n

51,1<\/p>\n<\/td>\n<\/tr>\n

\u0110\u1ed1i ch\u1ee9ng<\/td>\n<\/td>\n\n

90<\/p>\n<\/td>\n

\n

21<\/p>\n<\/td>\n

\n

23,3<\/p>\n<\/td>\n

\n

17<\/p>\n<\/td>\n

\n

18,9<\/p>\n<\/td>\n

\n

52<\/p>\n<\/td>\n

\n

57,8<\/p>\n<\/td>\n<\/tr>\n

\n

ABT<\/p>\n<\/td>\n

\n

0,5<\/p>\n<\/td>\n

\n

90<\/p>\n<\/td>\n

\n

54<\/p>\n<\/td>\n

\n

60,0<\/p>\n<\/td>\n

\n

15<\/p>\n<\/td>\n

\n

16,7<\/p>\n<\/td>\n

\n

21<\/p>\n<\/td>\n

\n

23,3<\/p>\n<\/td>\n<\/tr>\n

\n

ABT<\/p>\n<\/td>\n

\n

1,0<\/p>\n<\/td>\n

\n

90<\/p>\n<\/td>\n

\n

51<\/p>\n<\/td>\n

\n

56,7<\/p>\n<\/td>\n

\n

13<\/p>\n<\/td>\n

\n

14,4<\/p>\n<\/td>\n

\n

26<\/p>\n<\/td>\n

\n

28,9<\/p>\n<\/td>\n<\/tr>\n

\n

ABT<\/p>\n<\/td>\n

\n

1,5<\/p>\n<\/td>\n

\n

90<\/p>\n<\/td>\n

\n

69<\/p>\n<\/td>\n

\n

76,6<\/p>\n<\/td>\n

\n

10<\/p>\n<\/td>\n

\n

11,1<\/p>\n<\/td>\n

\n

11<\/p>\n<\/td>\n

\n

12,2<\/p>\n<\/td>\n<\/tr>\n

\n

ABT<\/p>\n<\/td>\n

\n

2,0<\/p>\n<\/td>\n

\n

90<\/p>\n<\/td>\n

\n

57<\/p>\n<\/td>\n

\n

63,3<\/p>\n<\/td>\n

\n

11<\/p>\n<\/td>\n

\n

12,2<\/p>\n<\/td>\n

\n

22<\/p>\n<\/td>\n

\n

24,4<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

B\u1ea3ng 8: Ch\u1ea5t l\u01b0\u1ee3ng r\u1ec5 theo c\u00f4ng th\u1ee9c gi\u00e2m hom V\u00f9 h\u01b0\u01a1ng m\u00f9a m\u01b0a.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Lo\u1ea1i thu\u1ed1c<\/b><\/td>\nN\u1ed3ng \u0111\u1ed9 (%)<\/b><\/td>\nS\u1ed1 hom ra r\u1ec5<\/b><\/td>\nS\u1ed1 r\u1ec5 trung b\u00ecnh\/hom<\/b><\/td>\nChi\u1ec1u d\u00e0i trung b\u00ecnh r\u1ec5 (cm)<\/b><\/td>\n<\/tr>\n
\u0110\u1ed1i ch\u1ee9ng<\/td>\n\n

15<\/p>\n<\/td>\n

\n

2,17<\/p>\n<\/td>\n

\n

2,03<\/p>\n<\/td>\n<\/tr>\n

AIA<\/p>\n

 <\/td>\n

\n

0,5<\/p>\n<\/td>\n

\n

48<\/p>\n<\/td>\n

\n

2,97<\/p>\n<\/td>\n

\n

2,20<\/p>\n<\/td>\n<\/tr>\n

\n

1,0<\/p>\n<\/td>\n

\n

54<\/p>\n<\/td>\n

\n

3,27<\/p>\n<\/td>\n

\n

3,20<\/p>\n<\/td>\n<\/tr>\n

\n

1,5<\/p>\n<\/td>\n

\n

48<\/p>\n<\/td>\n

\n

4,37<\/p>\n<\/td>\n

\n

4,23<\/p>\n<\/td>\n<\/tr>\n

\n

2,0<\/p>\n<\/td>\n

\n

36<\/p>\n<\/td>\n

\n

2,23<\/p>\n<\/td>\n

\n

1,67<\/p>\n<\/td>\n<\/tr>\n

\u00a0\u0110\u1ed1i ch\u1ee9ng<\/td>\n\n

21<\/p>\n<\/td>\n

\n

1,27<\/p>\n<\/td>\n

\n

1,73<\/p>\n<\/td>\n<\/tr>\n

ABT1<\/p>\n

 <\/td>\n

\n

0,5<\/p>\n<\/td>\n

\n

54<\/p>\n<\/td>\n

\n

3,17<\/p>\n<\/td>\n

\n

4,17<\/p>\n<\/td>\n<\/tr>\n

\n

1,0<\/p>\n<\/td>\n

\n

51<\/p>\n<\/td>\n

\n

5,33<\/p>\n<\/td>\n

\n

3,47<\/p>\n<\/td>\n<\/tr>\n

\n

1,5<\/p>\n<\/td>\n

\n

69<\/p>\n<\/td>\n

\n

5,37<\/p>\n<\/td>\n

\n

4,50<\/p>\n<\/td>\n<\/tr>\n

\n

2,0<\/p>\n<\/td>\n

\n

57<\/p>\n<\/td>\n

\n

5,03<\/p>\n<\/td>\n

\n

4,47<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Sau khi gi\u00e2m 8-12 ng\u00e0y hom b\u1eaft \u0111\u1ea7u ra m\u00f4 s\u1eb9o v\u00e0 sau\u00a0 21 ng\u00e0y gi\u00e2m, hom V\u00f9 h\u01b0\u01a1ng b\u1eaft \u0111\u1ea7u ra r\u1ec5, s\u1ed1 l\u01b0\u1ee3ng r\u1ec5 trung b\u00ecnh tr\u00ean m\u1ed9t hom dao \u0111\u1ed9ng \u00a0t\u1eeb 1,27-5,37 r\u1ec5\/hom, chi\u1ec1u d\u00e0i trung b\u00ecnh r\u1ec5 1,67 – 4,5cm. Hom c\u00f3 th\u1ec3 ra r\u1ec5 c\u1ea3 khi kh\u00f4ng c\u1ea7n d\u00f9ng thu\u1ed1c k\u00edch th\u00edch, nh\u01b0ng t\u1ef7 l\u1ec7 hom ra r\u1ec5 th\u1ea5p ch\u1ec9 \u0111\u1ea1t trung b\u00ecnh t\u1eeb 16,7-23,3%. Hom \u0111\u01b0\u1ee3c x\u1eed b\u1eb1ng ch\u1ea5t k\u00edch th\u00edch ra r\u1ec5 ABT1 n\u1ed3ng \u0111\u1ed9 1,5% cho t\u1ef7 l\u1ec7 ra r\u1ec5 cao nh\u1ea5t 76%, trong khi s\u1eed d\u1ee5ng thu\u1ed1c AIA n\u1ed3ng \u0111\u1ed9 1% cho t\u1ef7 l\u1ec7 ra r\u1ec5 \u0111\u1ea1t 60%. Nh\u01b0 v\u1eady, c\u00e1c ch\u1ea5t k\u00edch th\u00edch ra r\u1ec5 c\u00f3 \u0111\u1ec1u c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ef7 l\u1ec7 ra r\u1ec5 c\u1ee7a hom V\u00f9 H\u01b0\u01a1ng v\u00e0 thu\u1ed1c ABT1 v\u1edbi n\u1ed3ng \u0111\u1ed9 1,5% \u1ea3nh h\u01b0\u1edfng tr\u1ed9i nh\u1ea5t \u0111\u1ebfn t\u1ef7 l\u1ec7 ra r\u1ec5 khi gi\u00e2m hom.<\/p>\n

f. K\u1ebft qu\u1ea3 gi\u00e2m hom v\u1ee5 m\u00f9a kh\u00f4 9 -12\/2008.<\/b><\/p>\n

B\u1ea3ng 9: T\u1ef7 l\u1ec7 ra r\u1ec5 \u1edf c\u00e1c c\u00f4ng th\u1ee9c gi\u00e2m hom V\u00f9 h\u01b0\u01a1ng m\u00f9a kh\u00f4<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u00a0 C\u00f4ng th\u1ee9c<\/b><\/td>\nN\u1ed3ng \u0111\u1ed9 %<\/b><\/td>\nS.L hom <\/b><\/td>\n\u00a0 Hom ra r\u1ec5<\/b><\/td>\nHom ra m\u00f4 s\u1eb9o<\/b><\/td>\n\u00a0\u00a0 Hom ch\u1ebft<\/b><\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n\n

N<\/b><\/p>\n<\/td>\n

\n

%<\/b><\/p>\n<\/td>\n

\n

N<\/b><\/p>\n<\/td>\n

\n

%<\/b><\/p>\n<\/td>\n

\n

N<\/b><\/p>\n<\/td>\n

\n

%<\/b><\/p>\n<\/td>\n<\/tr>\n

\u0110\u1ed1i ch\u1ee9ng<\/td>\n<\/td>\n\n

90<\/p>\n<\/td>\n

\n

17<\/p>\n<\/td>\n

\n

18,8<\/p>\n<\/td>\n

\n

13<\/p>\n<\/td>\n

\n

14,4<\/p>\n<\/td>\n

\n

60<\/p>\n<\/td>\n

\n

66,6<\/p>\n<\/td>\n<\/tr>\n

AIA<\/td>\n0,5<\/td>\n\n

90<\/p>\n<\/td>\n

\n

51<\/p>\n<\/td>\n

\n

56,6<\/p>\n<\/td>\n

\n

11<\/p>\n<\/td>\n

\n

12,2<\/p>\n<\/td>\n

\n

28<\/p>\n<\/td>\n

\n

31,1<\/p>\n<\/td>\n<\/tr>\n

AIA<\/td>\n1,0<\/td>\n\n

90<\/p>\n<\/td>\n

\n

53<\/p>\n<\/td>\n

\n

58,9<\/p>\n<\/td>\n

\n

15<\/p>\n<\/td>\n

\n

16,6<\/p>\n<\/td>\n

\n

22<\/p>\n<\/td>\n

\n

24,4<\/p>\n<\/td>\n<\/tr>\n

\n

AIA<\/p>\n<\/td>\n

\n

1,5<\/p>\n<\/td>\n

\n

90<\/p>\n<\/td>\n

\n

57<\/p>\n<\/td>\n

\n

63,3<\/p>\n<\/td>\n

\n

13<\/p>\n<\/td>\n

\n

14,4<\/p>\n<\/td>\n

\n

20<\/p>\n<\/td>\n

\n

22,2<\/p>\n<\/td>\n<\/tr>\n

\n

AIA<\/p>\n<\/td>\n

\n

2,0<\/p>\n<\/td>\n

\n

90<\/p>\n<\/td>\n

\n

43<\/p>\n<\/td>\n

\n

47,8<\/p>\n<\/td>\n

\n

11<\/p>\n<\/td>\n

\n

12,2<\/p>\n<\/td>\n

\n

36<\/p>\n<\/td>\n

\n

40,0<\/p>\n<\/td>\n<\/tr>\n

\n

\u0110\u1ed1i ch\u1ee9ng<\/p>\n<\/td>\n

<\/td>\n\n

90<\/p>\n<\/td>\n

\n

23<\/p>\n<\/td>\n

\n

25,6<\/p>\n<\/td>\n

\n

21<\/p>\n<\/td>\n

\n

23,3<\/p>\n<\/td>\n

\n

46<\/p>\n<\/td>\n

\n

51,1<\/p>\n<\/td>\n<\/tr>\n

\n

ABT1<\/p>\n<\/td>\n

\n

0,5<\/p>\n<\/td>\n

\n

90<\/p>\n<\/td>\n

\n

57<\/p>\n<\/td>\n

\n

63,3<\/p>\n<\/td>\n

\n

18<\/p>\n<\/td>\n

\n

20,0<\/p>\n<\/td>\n

\n

15<\/p>\n<\/td>\n

\n

16,6<\/p>\n<\/td>\n<\/tr>\n

\n

ABT1<\/p>\n<\/td>\n

\n

1,0<\/p>\n<\/td>\n

\n

90<\/p>\n<\/td>\n

\n

55<\/p>\n<\/td>\n

\n

61,1<\/p>\n<\/td>\n

\n

13<\/p>\n<\/td>\n

\n

14,4<\/p>\n<\/td>\n

\n

22<\/p>\n<\/td>\n

\n

24,4<\/p>\n<\/td>\n<\/tr>\n

\n

ABT1<\/p>\n<\/td>\n

\n

1,5<\/p>\n<\/td>\n

\n

90<\/p>\n<\/td>\n

\n

71<\/p>\n<\/td>\n

\n

78,9<\/p>\n<\/td>\n

\n

17<\/p>\n<\/td>\n

\n

18,8<\/p>\n<\/td>\n

\n

12<\/p>\n<\/td>\n

\n

13,3<\/p>\n<\/td>\n<\/tr>\n

\n

ABT1<\/p>\n<\/td>\n

\n

2,0<\/p>\n<\/td>\n

\n

90<\/p>\n<\/td>\n

\n

60<\/p>\n<\/td>\n

\n

66,7<\/p>\n<\/td>\n

\n

13<\/p>\n<\/td>\n

\n

14,4<\/p>\n<\/td>\n

\n

17<\/p>\n<\/td>\n

\n

18,9<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/b>B\u1ea3ng 10: Ch\u1ea5t l\u01b0\u1ee3ng r\u1ec5 theo c\u00e1c c\u00f4ng th\u1ee9c gi\u00e2m hom V\u00f9 h\u01b0\u01a1ng m\u00f9a kh\u00f4.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Lo\u1ea1i thu\u1ed1c<\/b><\/td>\nN\u1ed3ng \u0111\u1ed9 (%)<\/b><\/td>\nS\u1ed1 hom ra r\u1ec5<\/b><\/td>\nS\u1ed1 r\u1ec5 trung b\u00ecnh\/hom<\/b><\/td>\nChi\u1ec1u d\u00e0i trung b\u00ecnh r\u1ec5 (cm)<\/b><\/td>\n<\/tr>\n
\u0110\u1ed1i ch\u1ee9ng<\/td>\n\n

17<\/p>\n<\/td>\n

\n

2,40<\/p>\n<\/td>\n

\n

2,60<\/p>\n<\/td>\n<\/tr>\n

AIA(d\u1ea1ng b\u1ed9t)<\/td>\n\n

0,5<\/p>\n<\/td>\n

\n

51<\/p>\n<\/td>\n

\n

2,97<\/p>\n<\/td>\n

\n

2,23<\/p>\n<\/td>\n<\/tr>\n

\n

1,0<\/p>\n<\/td>\n

\n

53<\/p>\n<\/td>\n

\n

3,50<\/p>\n<\/td>\n

\n

3,47<\/p>\n<\/td>\n<\/tr>\n

\n

1,5<\/p>\n<\/td>\n

\n

57<\/p>\n<\/td>\n

\n

4,87<\/p>\n<\/td>\n

\n

4,30<\/p>\n<\/td>\n<\/tr>\n

\n

2,0<\/p>\n<\/td>\n

\n

43<\/p>\n<\/td>\n

\n

2,30<\/p>\n<\/td>\n

\n

2,73<\/p>\n<\/td>\n<\/tr>\n

\u00a0\u0110\u1ed1i ch\u1ee9ng<\/td>\n\n

23<\/p>\n<\/td>\n

\n

2,47<\/p>\n<\/td>\n

\n

2,60<\/p>\n<\/td>\n<\/tr>\n

ABT1(d\u1ea1ng b\u1ed9t)<\/td>\n\n

0,5<\/p>\n<\/td>\n

\n

57<\/p>\n<\/td>\n

\n

2,63<\/p>\n<\/td>\n

\n

4,27<\/p>\n<\/td>\n<\/tr>\n

\n

1,0<\/p>\n<\/td>\n

\n

55<\/p>\n<\/td>\n

\n

4,37<\/p>\n<\/td>\n

\n

3,67<\/p>\n<\/td>\n<\/tr>\n

\n

1,5<\/p>\n<\/td>\n

\n

71<\/p>\n<\/td>\n

\n

5,10<\/p>\n<\/td>\n

\n

4,53<\/p>\n<\/td>\n<\/tr>\n

\n

2,0<\/p>\n<\/td>\n

\n

60<\/p>\n<\/td>\n

\n

4,39<\/p>\n<\/td>\n

\n

4,47<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Hom \u0111\u1ea1t t\u1ef7 l\u1ec7 ra r\u1ec5 cao nh\u1ea5t l\u00e0 78,9% \u1edf m\u00f9a kh\u00f4 trong khi \u0111\u00f3 ch\u1ec9 \u0111\u1ea1t 76,6% \u1edf m\u00f9a m\u01b0a. Trong m\u00f9a kh\u00f4, hom sau khi gi\u00e2m 9-15 ng\u00e0y b\u1eaft \u0111\u1ea7u ra m\u00f4 s\u1eb9o v\u00e0 sau 22-25 ng\u00e0y gi\u00e2m hom m\u1edbi b\u1eaft \u0111\u1ea7u ra r\u1ec5. S\u1ed1 l\u01b0\u1ee3ng r\u1ec5 trung b\u00ecnh tr\u00ean m\u1ed9t hom dao \u0111\u1ed9ng \u00a0t\u1eeb 2,3 – 5,1 r\u1ec5\/hom, chi\u1ec1u d\u00e0i trung b\u00ecnh r\u1ec5 2,23 – 4,47cm. Hom c\u00f3 th\u1ec3 ra r\u1ec5 c\u1ea3 khi kh\u00f4ng c\u1ea7n d\u00f9ng thu\u1ed1c k\u00edch th\u00edch, nh\u01b0ng t\u1ef7 l\u1ec7 hom ra r\u1ec5 th\u1ea5p ch\u1ec9 \u0111\u1ea1t trung b\u00ecnh t\u1eeb 18,8-25,6%. Hom \u0111\u01b0\u1ee3c x\u1eed b\u1eb1ng ch\u1ea5t k\u00edch th\u00edch ra r\u1ec5 ABT1 n\u1ed3ng \u0111\u1ed9 1,5% cho t\u1ef7 l\u1ec7 ra r\u1ec5 cao nh\u1ea5t 78,9%, trong khi \u0111\u00f3 s\u1eed d\u1ee5ng thu\u1ed1c AIA n\u1ed3ng \u0111\u1ed9 1,5% cho t\u1ef7 l\u1ec7 ra r\u1ec5 \u0111\u1ea1t 63,3%. Nh\u01b0 v\u1eady, c\u00e1c ch\u1ea5t k\u00edch th\u00edch ra r\u1ec5 c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ef7 l\u1ec7 ra r\u1ec5 c\u1ee7a hom V\u00f9 H\u01b0\u01a1ng trong gi\u00e2m hom m\u00f9a kh\u00f4 v\u00e0 thu\u1ed1c ABT1 v\u1edbi n\u1ed3ng \u0111\u1ed9 1,5% c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ed9i nh\u1ea5t \u0111\u1ebfn t\u1ef7 l\u1ec7 ra r\u1ec5 c\u1ee7a hom V\u00f9 H\u01b0\u01a1ng. Gi\u00e2m hom m\u00f9a kh\u00f4\u00a0 c\u00f3 t\u1ef7 l\u1ec7 ra r\u1ec5 cao h\u01a1n m\u00f9a m\u01b0a.<\/p>\n

5.3. K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u tr\u1ed3ng ph\u1ee5c h\u1ed3i c\u00e1c tr\u1ea1ng th\u00e1i r\u1eebng t\u1ef1 nhi\u00ean ngh\u00e8o ki\u1ec7t (<\/b>T\u1ed5ng 14,5ha th\u00ed nghi\u1ec7m \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng).<\/p>\n

\u00a0a. \u1ea2nh h\u01b0\u1edfng c\u1ee7a tr\u1ea1ng th\u00e1i r\u1eebng tr\u1ed3ng ph\u1ee5c h\u1ed3i \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y tr\u1ed3ng.<\/b><\/p>\n

B\u1ea3ng 11: \u1ea3nh h\u01b0\u1edfng c\u1ee7a tr\u1ea1ng th\u00e1i r\u1eebng tr\u1ed3ng ph\u1ee5c h\u1ed3i \u0111\u1ebfn sinh tr\u01b0\u1edfng.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
Lo\u00e0i c\u00e2y<\/td>\n41 th\u00e1ng tu\u1ed5i \u0111\u1ed1i v\u1edbi Trai l\u00fd v\u00e0 S\u01b0a, 17 th\u00e1ng tu\u1ed5i \u0111\u1ed1i v\u1edbi V\u00f9 h\u01b0\u01a1ng<\/p>\n

(\u0111o s\u1ed1 li\u1ec7u th\u00e1ng 10\/2010, chi\u1ec1u cao trung b\u00ecnh c\u00e2y gi\u1ed1ng \u0111em tr\u1ed3ng 35cm)<\/p>\n<\/td>\n<\/tr>\n

\n

TLS (%)<\/p>\n<\/td>\n

\n

Do (cm)<\/p>\n<\/td>\n

\n

Hvn (cm)<\/p>\n<\/td>\n<\/tr>\n

Tr\u1ea1ng th\u00e1i r\u1eebng ph\u1ee5c h\u1ed3i sau khai th\u00e1c.<\/td>\n<\/tr>\n
Trai l\u00fd<\/td>\n\n

87,75<\/p>\n<\/td>\n

\n

0,78<\/p>\n<\/td>\n

\n

61,92<\/p>\n<\/td>\n<\/tr>\n

V\u00f9 h\u01b0\u01a1ng<\/td>\n\n

93,75<\/p>\n<\/td>\n

\n

0,83<\/p>\n<\/td>\n

\n

64,27<\/p>\n<\/td>\n<\/tr>\n

S\u01b0a<\/td>\n\n

90,62<\/p>\n<\/td>\n

\n

1,77<\/p>\n<\/td>\n

\n

166,69<\/p>\n<\/td>\n<\/tr>\n

Tr\u1ea1ng th\u00e1i r\u1eebng ph\u1ee5c h\u1ed3i sau canh t\u00e1c n\u01b0\u01a1ng r\u1eaby<\/td>\n<\/tr>\n
Trai l\u00fd<\/td>\n\n

84,37<\/p>\n<\/td>\n

\n

0,81<\/p>\n<\/td>\n

\n

59,56<\/p>\n<\/td>\n<\/tr>\n

V\u00f9 h\u01b0\u01a1ng<\/td>\n\n

93,75<\/p>\n<\/td>\n

\n

0,65<\/p>\n<\/td>\n

\n

55,30<\/p>\n<\/td>\n<\/tr>\n

S\u01b0a<\/td>\n\n

93,75<\/p>\n<\/td>\n

\n

1,31<\/p>\n<\/td>\n

\n

109,84<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

K\u1ebft qu\u1ea3 ph\u00e2n t\u00edch ANOVA m\u1ed9t nh\u00e2n t\u1ed1 cho th\u1ea5y, tr\u1ea1ng th\u00e1i r\u1eebng tr\u1ed3ng kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn sinh tr\u01b0\u1edfng chi\u1ec1u cao v\u00e0 \u0111\u01b0\u1eddng k\u00ednh g\u1ed1c lo\u00e0i Trai l\u00fd, nh\u01b0ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ef7 l\u1ec7 s\u1ed1ng, t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a c\u00e2y \u1edf tr\u1ea1ng th\u00e1i r\u1eebng ph\u1ee5c h\u1ed3i sau khai th\u00e1c (87,75%) cao h\u01a1n t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a c\u00e2y \u1edf tr\u1ea1ng th\u00e1i r\u1eebng ph\u1ee5c h\u1ed3i sau\u00a0 CTNR (84,37%). \u0110\u1ed1i v\u1edbi lo\u00e0i V\u00f9 h\u01b0\u01a1ng, tr\u1ea1ng th\u00e1i r\u1eebng ph\u1ee5c h\u1ed3i sau khai th\u00e1c c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ed9i h\u01a1n so v\u1edbi tr\u1ea1ng th\u00e1i r\u1eebng ph\u1ee5c h\u1ed3i sau CTNR, nh\u01b0ng l\u1ea1i kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a c\u00e2y. \u0110\u1ed1i v\u1edbi S\u01b0a, tr\u1ea1ng th\u00e1i r\u1eebng tr\u1ed3ng ph\u1ee5c h\u1ed3i c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn sinh tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh v\u00e0 chi\u1ec1u cao, tr\u1ea1ng th\u00e1i r\u1eebng ph\u1ee5c h\u1ed3i sau khai th\u00e1c c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ed9i h\u01a1n tr\u1ea1ng th\u00e1i r\u1eebng ph\u1ee5c h\u1ed3i sau CTNR, nh\u01b0ng t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a c\u00e2y \u1edf tr\u1ea1ng th\u00e1i r\u1eebng ph\u1ee5c h\u1ed3i sau canh t\u00e1c n\u01b0\u01a1ng r\u1eaby (\u0111\u1ea1t 93,75%) cao h\u01a1n t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a c\u00e2y \u1edf tr\u1ea1ng th\u00e1i r\u1eebng ngh\u00e8o ki\u1ec7t sau khai th\u00e1c (\u0111\u1ea1t 90,62%).<\/p>\n

b.<\/b> \u1ea2nh h\u01b0\u1edfng c\u1ee7a m\u1eadt \u0111\u1ed9 tr\u1ed3ng \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y tr\u1ed3ng.<\/b><\/p>\n

B\u1ea3ng 12: \u1ea3nh h\u01b0\u1edfng c\u1ee7a m\u1eadt \u0111\u1ed9 \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u00e2y tr\u1ed3ng<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Lo\u00e0i c\u00e2y\/m\u1eadt \u0111\u1ed9<\/p>\n<\/td>\n

\n

41 th\u00e1ng tu\u1ed5i \u0111\u1ed1i v\u1edbi S\u01b0a, 17 th\u00e1ng tu\u1ed5i \u0111\u1ed1i v\u1edbi Trai l\u00fd, V\u00f9 h\u01b0\u01a1ng<\/p>\n

(\u0111o s\u1ed1 li\u1ec7u 11\/2010, chi\u1ec1u cao trung b\u00ecnh c\u00e2y gi\u1ed1ng \u0111em tr\u1ed3ng 35cm)<\/p>\n<\/td>\n<\/tr>\n

\n

TLS (%)<\/p>\n<\/td>\n

\n

Do (cm)<\/p>\n<\/td>\n

\n

Hvn(cm)<\/p>\n<\/td>\n<\/tr>\n

Trai l\u00fd<\/b><\/td>\n<\/tr>\n
\n

400<\/p>\n<\/td>\n

\n

87,50<\/p>\n<\/td>\n

\n

0,43<\/p>\n<\/td>\n

\n

42,59<\/p>\n<\/td>\n<\/tr>\n

\n

660<\/p>\n<\/td>\n

\n

90,75<\/p>\n<\/td>\n

\n

0,43<\/p>\n<\/td>\n

\n

44,19<\/p>\n<\/td>\n<\/tr>\n

\n

830<\/p>\n<\/td>\n

\n

87,50<\/p>\n<\/td>\n

\n

0,46<\/p>\n<\/td>\n

\n

44,02<\/p>\n<\/td>\n<\/tr>\n

V\u00f9 h\u01b0\u01a1ng<\/b><\/td>\n<\/tr>\n
\n

400<\/p>\n<\/td>\n

\n

93,75<\/p>\n<\/td>\n

\n

0,69<\/p>\n<\/td>\n

\n

59,8<\/p>\n<\/td>\n<\/tr>\n

\n

660<\/p>\n<\/td>\n

\n

90,62<\/p>\n<\/td>\n

\n

0,63<\/p>\n<\/td>\n

\n

57,77<\/p>\n<\/td>\n<\/tr>\n

\n

830<\/p>\n<\/td>\n

\n

90,62<\/p>\n<\/td>\n

\n

0,69<\/p>\n<\/td>\n

\n

59,70<\/p>\n<\/td>\n<\/tr>\n

S\u01b0a<\/b><\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
\n

400<\/p>\n<\/td>\n

\n

87,50<\/p>\n<\/td>\n

\n

0,98<\/p>\n<\/td>\n

\n

98,60<\/p>\n<\/td>\n<\/tr>\n

\n

660<\/p>\n<\/td>\n

\n

87,50<\/p>\n<\/td>\n

\n

0,89<\/p>\n<\/td>\n

\n

96,94<\/p>\n<\/td>\n<\/tr>\n

\n

830<\/p>\n<\/td>\n

\n

84,37<\/p>\n<\/td>\n

\n

0,91<\/p>\n<\/td>\n

\n

99,50<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

K\u1ebft qu\u1ea3 ph\u00e2n t\u00edch ANOVA m\u1ed9t nh\u00e2n t\u1ed1 cho th\u1ea5y, c\u00f4ng th\u1ee9c m\u1eadt \u0111\u1ed9, kh\u00f4ng \u00a0\u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y Trai l\u00fd, nh\u01b0ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a c\u00e2y, m\u1eadt \u0111\u1ed9 tr\u1ed3ng 660c\u00e2y\/ha \u0111\u1ea1t t\u1ef7 l\u1ec7 s\u1ed1ng cao nh\u1ea5t 90,62%. \u0110\u1ed1i v\u1edbi V\u00f9 h\u01b0\u01a1ng, c\u00e1c c\u00f4ng th\u1ee9c m\u1eadt \u0111\u1ed9 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y, song c\u00f4ng th\u1ee9c m\u1eadt \u0111\u1ed9 400 c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng cao nh\u1ea5t \u0111\u1ea1t 93,75%. \u0110\u1ed1i v\u1edbi S\u01b0a, khi c\u00e2y 41 th\u00e1ng tu\u1ed5i, c\u00f4ng th\u1ee9c m\u1eadt \u0111\u1ed9 c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y, m\u1eadt \u0111\u1ed9 830c\/ha cho sinh tr\u01b0\u1edfng Hvn cao nh\u1ea5t \u0111\u1ea1t trung b\u00ecnh 99,5cm, m\u1eadt \u0111\u1ed9 400c\/ha cho sinh tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh trung b\u00ecnh cao nh\u1ea5t \u0111\u1ea1t 0,98cm.<\/p>\n<\/div>\n

 <\/p>\n

c<\/b>. \u1ea2nh h\u01b0\u1edfng c\u1ee7a b\u00f3n ph\u00e2n \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y tr\u1ed3ng.<\/b><\/p>\n

B\u1ea3ng 13: \u1ea3nh h\u01b0\u1edfng c\u1ee7a b\u00f3n ph\u00e2n \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u00e2y tr\u1ed3ng<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Lo\u00e0i c\u00e2y\/m\u1eadt \u0111\u1ed9<\/p>\n<\/td>\n

\n

41 th\u00e1ng tu\u1ed5i \u0111\u1ed1i v\u1edbi S\u01b0a, 17 th\u00e1ng tu\u1ed5i \u0111\u1ed1i v\u1edbi Trai l\u00fd, V\u00f9 h\u01b0\u01a1ng<\/p>\n

(\u0111o s\u1ed1 li\u1ec7u 11\/2010, chi\u1ec1u cao trung b\u00ecnh c\u00e2y gi\u1ed1ng \u0111em tr\u1ed3ng 35cm)<\/p>\n<\/td>\n<\/tr>\n

\n

TLS (%)<\/p>\n<\/td>\n

\n

Do (cm)<\/p>\n<\/td>\n

\n

Hvn(cm)<\/p>\n<\/td>\n<\/tr>\n

Trai l\u00fd<\/b><\/td>\n<\/tr>\n
\n

0,2kg NPK<\/p>\n<\/td>\n

\n

87,50<\/p>\n<\/td>\n

\n

0,43<\/p>\n<\/td>\n

\n

45,97<\/p>\n<\/td>\n<\/tr>\n

\n

3kg Ph\u00e2n chu\u1ed3ng<\/p>\n<\/td>\n

\n

90,62<\/p>\n<\/td>\n

\n

0,46<\/p>\n<\/td>\n

\n

43,47<\/p>\n<\/td>\n<\/tr>\n

\n

\u0110\u1ed1i ch\u1ee9ng<\/p>\n<\/td>\n

\n

87,50<\/p>\n<\/td>\n

\n

0,43<\/p>\n<\/td>\n

\n

39,44<\/p>\n<\/td>\n<\/tr>\n

V\u00f9 h\u01b0\u01a1ng<\/b><\/td>\n<\/tr>\n
\n

0,2kg NPK<\/p>\n<\/td>\n

\n

90,62<\/p>\n<\/td>\n

\n

0,62<\/p>\n<\/td>\n

\n

56,91<\/p>\n<\/td>\n<\/tr>\n

\n

3kg Ph\u00e2n chu\u1ed3ng<\/p>\n<\/td>\n

\n

96,87<\/p>\n<\/td>\n

\n

0,66<\/p>\n<\/td>\n

\n

58,66<\/p>\n<\/td>\n<\/tr>\n

\n

\u0110\u1ed1i ch\u1ee9ng<\/p>\n<\/td>\n

\n

96,87<\/p>\n<\/td>\n

\n

0,68<\/p>\n<\/td>\n

\n

50,56<\/p>\n<\/td>\n<\/tr>\n

S\u01b0a<\/b><\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
\n

0,2kg NPK<\/p>\n<\/td>\n

\n

87,50<\/p>\n<\/td>\n

\n

0,98<\/p>\n<\/td>\n

\n

98,10<\/p>\n<\/td>\n<\/tr>\n

\n

3kg Ph\u00e2n chu\u1ed3ng<\/p>\n<\/td>\n

\n

90,62<\/p>\n<\/td>\n

\n

0,99<\/p>\n<\/td>\n

\n

98,50<\/p>\n<\/td>\n<\/tr>\n

\n

\u0110\u1ed1i ch\u1ee9ng<\/p>\n<\/td>\n

\n

87,50<\/p>\n<\/td>\n

\n

0,96<\/p>\n<\/td>\n

\n

94,80<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

K\u1ebft qu\u1ea3 ph\u00e2n t\u00edch ANOVA m\u1ed9t nh\u00e2n t\u1ed1 cho th\u1ea5y, \u0111\u1ed1i v\u1edbi c\u00f4ng th\u1ee9c b\u00f3n ph\u00e2n 0,2kg NPK c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn sinh tr\u01b0\u1edfng chi\u1ec1u cao c\u00e2y Trai l\u00fd, nh\u01b0ng l\u1ea1i kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn sinh tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a c\u00e2y. \u00a0\u0110\u1ed1i v\u1edbi V\u00f9 h\u01b0\u01a1ng c\u00f4ng th\u1ee9c b\u00f3n 3kg ph\u00e2n chu\u1ed3ng c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ed9i nh\u1ea5t \u0111\u1ebfn sinh tr\u01b0\u1edfng chi\u1ec1u cao c\u1ee7a c\u00e2y, nh\u01b0ng kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn sinh tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a c\u00e2y. Lo\u00e0i S\u01b0a, c\u00f4ng th\u1ee9c b\u00f3n ph\u00e2n 3kg ph\u00e2n chu\u1ed3ng c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ed9i nh\u1ea5t \u0111\u1ebfn sinh tr\u01b0\u1edfng chi\u1ec1u cao, nh\u01b0ng kh\u00f4ng c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn sinh tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a c\u00e2y.<\/p>\n

5.4. K\u1ebft qu\u1ea3 x\u00e2y d\u1ef1ng h\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt g\u00e2y tr\u1ed3ng c\u00e1c lo\u00e0i c\u00e2y nghi\u00ean c\u1ee9u.<\/b><\/p>\n

\u0110\u1ec1 t\u00e0i \u0111\u00e3 x\u00e2y d\u1ef1ng \u0111\u01b0\u1ee3c 3 b\u1ea3n h\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt g\u00e2y tr\u1ed3ng 3 lo\u00e0i c\u00e2y nghi\u00ean c\u1ee9u Trai l\u00fd, V\u00f9 h\u01b0\u01a1ng v\u00e0 S\u01b0a. H\u01b0\u1edbng d\u1eabn \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng g\u1eafn g\u1ecdn, d\u1ec5 hi\u1ec3u, \u0111\u1ea3m b\u1ea3o khoa h\u1ecdc, ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n v\u00f9ng T\u00e2y B\u1eafc. N\u1ed9i dung ch\u00ednh c\u1ee7a b\u1ea3n h\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt g\u00e2y tr\u1ed3ng g\u1ed3m: (I)\u00a0 M\u00f4 t\u1ea3 \u0111\u1eb7c \u0111i\u1ec3m sinh th\u00e1i lo\u00e0i c\u00e2y, (II) \u0110i\u1ec1u ki\u1ec7n g\u00e2y tr\u1ed3ng, (III) Nh\u00e2n gi\u1ed1ng, (IV) K\u1ef9 thu\u1eadt tr\u1ed3ng v\u00e0 ch\u0103m s\u00f3c.<\/p>\n

IV. K\u1ebeT LU\u1eacN V\u00c0 KI\u1ebeN NGH\u1eca<\/b><\/p>\n

6.1. K\u1ebft lu\u1eadn:<\/b><\/p>\n

+ Qua \u0111i\u1ec1u tra cho th\u1ea5y V\u00f9 h\u01b0\u01a1ng v\u00e0 S\u01b0a kh\u00f4ng c\u00f2n ph\u00e2n b\u1ed1 t\u1ef1 nhi\u00ean t\u1ea1i v\u00f9ng T\u00e2y B\u1eafc. \u0110\u1ed1i v\u1edbi Trai l\u00fd, ph\u00e2n b\u1ed1 ch\u1ee7 y\u1ebfu \u1edf n\u00fai \u0111\u00e1 v\u00f4i, h\u1ec7 s\u1ed1 t\u1ed5 th\u00e0nh lo\u00e0i dao \u0111\u1ed9ng t\u1eeb 1,3 -1,7 trong c\u00f4ng th\u1ee9c t\u1ed5 th\u00e0nh t\u1ea1i c\u00e1c \u0111\u1ecba \u0111i\u1ec3m \u0111i\u1ec1u tra. C\u00e2y t\u00e1i sinh ch\u1ee7 y\u1ebfu b\u1eb1ng h\u1ea1t, t\u1ef7 l\u1ec7 c\u00e2y con c\u00f3 tri\u1ec3n v\u1ecdng sinh tr\u01b0\u1edfng th\u00e0nh c\u00e2y m\u1eb9 ch\u1ec9 chi\u1ebfm t\u1eeb 26,1% \u0111\u1ebfn 39,8% t\u1ed5ng s\u1ed1 c\u00e2y t\u00e1i sinh.<\/p>\n

+ C\u00f4ng th\u1ee9c x\u1eed l\u00fd h\u1ea1t b\u1eb1ng n\u01b0\u1edbc \u1ea5m 40 \u0111\u1ed9 C, trong 12 gi\u1edd cho t\u1ef7 l\u1ec7 h\u1ea1t n\u1ea3y m\u1ea7m cao nh\u1ea5t. T\u1ef7 l\u1ec7 h\u1ea1t n\u1ea3y m\u1ea7m c\u1ee7a h\u1ea1t \u0111\u1ea1t 84,8% \u0111\u1ed1i v\u1edbi Trai l\u00fd v\u00e0 92,8% \u0111\u1ed1i v\u1edbi S\u01b0a.<\/p>\n

+ C\u00f4ng th\u1ee9c che b\u00f3ng 75% l\u00e0 t\u1ed1t nh\u1ea5t cho lo\u00e0i Trai l\u00fd, c\u00e2y \u0111\u1ea1t chi\u1ec1u cao Hvn= 25,3cm v\u00e0 \u0110g=3,94mm, c\u00f2n \u0111\u1ed1i v\u1edbi lo\u00e0i S\u01b0a che b\u00f3ng 50% l\u00e0 t\u1ed1t nh\u1ea5t c\u00e2y \u0111\u1ea1t Hvn=49,11 v\u00e0 \u0110g=6,15cm khi c\u00e2y gieo \u01b0\u01a1m \u0111\u01b0\u1ee3c 6 th\u00e1ng.<\/p>\n

+ Gi\u00e2m hom V\u00f9 h\u01b0\u01a1ng v\u00e0o m\u00f9a kh\u00f4 t\u1eeb th\u00e1ng 9-12 cho t\u1ef7 l\u1ec7 ra r\u1ec5 cao h\u01a1n gi\u00e2m hom m\u00f9a m\u01b0a t\u1eeb th\u00e1ng 5-8 h\u00e0ng n\u0103m. T\u1ef7 l\u1ec7 ra r\u1ec5 cao nh\u1ea5t v\u00e0o m\u00f9a kh\u00f4, \u0111\u1ed1i v\u1edbi thu\u1ed1c AIA n\u1ed3ng \u0111\u1ed9 1,5% l\u00e0 63,3%, thu\u1ed1c ABT1 n\u1ed3ng \u0111\u1ed9 1,5% l\u00e0 78,9%. \u0110\u1ed1i m\u00f9a m\u01b0a t\u1ef7 l\u1ec7 ra r\u1ec5 cao nh\u1ea5t l\u00e0 54% \u0111\u1ed1i v\u1edbi thu\u1ed1c AIA n\u1ed3ng \u0111\u1ed9 1% v\u00e0 69% \u0111\u1ed1i v\u1edbi thu\u1ed1c ABT1 n\u1ed3ng \u0111\u1ed9 1,5%.<\/p>\n

+ Tr\u1ea1ng th\u00e1i r\u1eebng kh\u00f4ng \u1ea3nh h\u01b0\u1edfng r\u00f5 r\u1ec7t \u0111\u1ebfn sinh tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh g\u1ed1c v\u00e0 chi\u1ec1u cao khi c\u00e2y Trai l\u00fd tr\u1ed3ng \u0111\u01b0\u1ee3c 41 th\u00e1ng tu\u1ed5i, nh\u01b0ng c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a c\u00e2y.<\/p>\n

+ Tr\u1ea1ng th\u00e1i r\u1eebng tr\u1ed3ng \u0111\u00e3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn sinh tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh v\u00e0 chi\u1ec1u cao c\u1ee7a c\u00e2y V\u00f9 h\u01b0\u01a1ng. Tr\u1ea1ng th\u00e1i r\u1eebng ph\u1ee5c h\u1ed3i sau khai th\u00e1c c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ed9i h\u01a1n \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y so v\u1edbi tr\u1ea1ng th\u00e1i r\u1eebng ph\u1ee5c h\u1ed3i sau canh t\u00e1c n\u01b0\u01a1ng r\u1eaby c\u00e2y \u0111\u1ea1t chi\u1ec1u cao trung b\u00ecnh Hvn=64,27cm, Do = 0,83cm.<\/p>\n

+ <\/b>Tr\u1ea1ng th\u00e1i r\u1eebng tr\u1ed3ng ph\u1ee5c h\u1ed3i c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn sinh Do v\u00e0 Hvn c\u1ee7a c\u00e2y S\u01b0a, khi c\u00e2y tr\u1ed3ng \u0111\u01b0\u1ee3c 41 th\u00e1ng tu\u1ed5i, tr\u1ea1ng th\u00e1i r\u1eebng ph\u1ee5c h\u1ed3i sau khai th\u00e1c c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ed9i h\u01a1n \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u00e2y \u0111\u1ea1t Hvn=166,69cm, \u0110g = 1,77cm.<\/p>\n

+ C\u00f4ng th\u1ee9c m\u1eadt \u0111\u1ed9 kh\u00f4ng c\u00f3 \u1ea3nh \u0111\u1ebfn sinh tr\u01b0\u1edfng \u0111\u01b0\u1eddng k\u00ednh v\u00e0 chi\u1ec1u cao c\u1ee7a c\u00e2y tr\u1ed3ng trong th\u1eddi gian nghi\u00ean c\u1ee9u, tuy nhi\u00ean c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a c\u00e2y.<\/p>\n

+ C\u00f4ng th\u1ee9c b\u00f3n ph\u00e2n c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y tr\u1ed3ng. \u0110\u1ed1i v\u1edbi Trai l\u00fd c\u00f4ng th\u1ee9c b\u00f3n 0,2kg NPK\/c\u00e2y cho sinh tr\u01b0\u1edfng chi\u1ec1u cao t\u1ed1t nh\u1ea5t khi c\u00e2y 17 th\u00e1ng tu\u1ed5i (Hvn= 45,97cm, \u0110g= 0,43). \u0110\u1ed1i v\u1edbi V\u00f9 h\u01b0\u01a1ng, c\u00f4ng th\u1ee9c b\u00f3n 3kg ph\u00e2n chu\u1ed3ng cho sinh tr\u01b0\u1edfng chi\u1ec1u cao t\u1ed1t nh\u1ea5t khi c\u00e2y 17 th\u00e1ng tu\u1ed5i (Hvn=58,66cm v\u00e0 Do=0,66cm). \u0110\u1ed1i v\u1edbi S\u01b0a c\u00f4ng th\u1ee9c b\u00f3n ph\u00e2n chu\u1ed3ng cho sinh tr\u01b0\u1edfng chi\u1ec1u cao t\u1ed1t nh\u1ea5t khi c\u00e2y 41 th\u00e1ng tu\u1ed5i (Hvn= 98,5cm, Do=0,99cm) v\u00e0 t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a c\u00e2y tr\u1ed3ng c\u0169ng \u0111\u1ea1t cao nh\u1ea5t 90,62%.<\/p>\n

6.2. Ki\u1ebfn ngh\u1ecb<\/b><\/p>\n

–\u00a0 Hi\u1ec7n nay ngu\u1ed3n gi\u1ed1ng h\u1ea1t \u0111\u1ec3 gieo \u01b0\u01a1m lo\u00e0i Trai l\u00fd khan hi\u1ebfm d\u1ea7n t\u1ea1i v\u00f9ng T\u00e2y B\u1eafc do v\u1eady c\u1ea7n b\u1ea3o v\u1ec7 nghi\u00eam ng\u1eb7t c\u00e1c c\u00e2y m\u1eb9 c\u00f2n ph\u00e2n b\u1ed1 t\u1ef1 nhi\u00ean \u0111\u1ec3 cung c\u1ea5p h\u1ea1t gi\u1ed1ng cho gieo \u01b0\u01a1m. \u0110\u1ed1i v\u1edbi V\u00f9 h\u01b0\u01a1ng, do c\u00e2y m\u1eb9 ngo\u00e0i t\u1ef1 nhi\u00ean kh\u00f4ng c\u00f2n, do v\u1eady c\u1ea7n x\u00e2y d\u1ef1ng v\u01b0\u1eddn gi\u1ed1ng g\u1ed1c cung c\u1ea5p hom cho s\u1ea3n xu\u1ea5t c\u00e2y gi\u1ed1ng.<\/p>\n

– \u0110\u1ed1i v\u1edbi S\u01b0a c\u1ea7n ti\u1ebfp t\u1ee5c nghi\u00ean c\u1ee9u nh\u00e2n gi\u1ed1ng b\u1eb1ng gi\u00e2m hom \u0111\u1ec3 s\u1ea3n xu\u1ea5t c\u00e2y gi\u1ed1ng, gi\u00fap ch\u1ee7 \u0111\u1ed9ng ngu\u1ed3n gi\u1ed1ng cho tr\u1ed3ng r\u1eebng t\u1ea1i v\u00f9ng\u00a0 T\u00e2y B\u1eafc.<\/p>\n

–\u00a0 Do v\u00f9ng T\u00e2y B\u1eafc, th\u1ea3m th\u1ef1c b\u00ec ph\u00e1t tri\u1ec3n nhanh, do \u0111\u00f3 c\u1ea7n ti\u1ebfp t\u1ee5c \u0111\u1ea7u t\u01b0 k\u00e9o d\u00e0i th\u1eddi gian ch\u0103m s\u00f3c c\u00e2y tr\u1ed3ng l\u00ean 5-6\u00a0 n\u0103m \u0111\u1ec3 c\u00f3 th\u1ec3 c\u1ea1nh tranh v\u1edbi c\u00e2y b\u1ee5i v\u00e0 th\u1ea3m th\u1ef1c b\u00ec.<\/p>\n

– C\u1ea7n nghi\u00ean c\u1ee9u th\u00eam v\u1ec1 \u1ea3nh h\u01b0\u1edfng c\u1ee7a \u0111\u1ed9 r\u1ed9ng b\u0103ng ch\u1eb7t \u0111\u1ebfn sinh tr\u01b0\u1edfng c\u1ee7a c\u00e2y tr\u1ed3ng v\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt l\u00e2m sinh nh\u01b0 m\u1edf t\u00e1n \u0111i\u1ec1u ch\u1ec9nh \u00e1nh s\u00e1nh cho c\u00e2y sinh tr\u01b0\u1edfng trong b\u0103ng ch\u1eb7t.<\/p>\n

– C\u00e1c th\u00ed nghi\u1ec7m \u0111\u00e3 x\u00e2y d\u1ef1ng c\u1ea7n \u0111\u01b0\u1ee3c ti\u1ebfp t\u1ee5c \u0111\u1ea7u t\u01b0 b\u1ea3o v\u1ec7, theo d\u00f5i, \u0111\u00e1nh gi\u00e1 \u0111\u1ec3 t\u1ed5ng k\u1ebft, d\u1ef1a tr\u00ean m\u1ed9t th\u1eddi gian d\u00e0i h\u01a1n.<\/p>\n","protected":false},"excerpt":{"rendered":"

H\u00e0 V\u0103n Ti\u1ec7p I. \u0110\u1eb6T V\u1ea4N \u0110\u1ec0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Ph\u00e2n theo v\u00f9ng sinh th\u00e1i L\u00e2m nghi\u1ec7p th\u00ec T\u00e2y B\u1eafc l\u00e0 v\u00f9ng n\u00fai non hi\u1ec3m tr\u1edf v\u00e0 r\u1ed9ng l\u1edbn, bao g\u1ed3m 4 t\u1ec9nh H\u00f2a B\u00ecnh, S\u01a1n La, \u0110i\u1ec7n Bi\u00ean v\u00e0 Lai Ch\u00e2u. Tr\u01b0\u1edbc nh\u1eefng n\u0103m 1954, v\u00f9ng n\u00e0y \u0111\u01b0\u1ee3c bao ph\u1ee7 b\u1edfi r\u1eebng nguy\u00ean sinh v\u1edbi \u0111\u1ed9 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[21,72],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/15094"}],"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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=15094"}],"version-history":[{"count":3,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/15094\/revisions"}],"predecessor-version":[{"id":15096,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/15094\/revisions\/15096"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=15094"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=15094"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=15094"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}