![\"15-04-22](\"http:\/\/vafs.gov.vn\/vn\/wp-content\/uploads\/sites\/2\/2015\/04\/15-04-22-TR-ngapman3.jpg\")
<\/a><\/p>\nH\u00ecnh 4 4. <\/b>M\u1ed9t v\u00e0i lo\u00e0i c\u00e2y ng\u1eadp m\u1eb7n sinh s\u1ed1ng ven \u0111\u1ea3o t\u1ea1i v\u1ecbnh V\u00e2n Phong, V\u1ea1n Ninh, Kh\u00e1nh H\u00f2a<\/p>\n
4.2. K\u1ebft qu\u1ea3 ch\u1ecdn c\u00e2y m\u1eb9 v\u00e0 thu h\u00e1i h\u1ea1t gi\u1ed1ng<\/b><\/p>\n
S\u1ed1 l\u01b0\u1ee3ng c\u00e2y m\u1eb9 \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn l\u00e0 160 c\u00e2y, bao g\u1ed3m 7 lo\u00e0i thu\u1ed9c 3 h\u1ecd th\u1ef1c v\u1eadt l\u00e0 h\u1ecd M\u1eafm (Avicenniaceae)<\/i>, h\u1ecd \u0110\u01b0\u1edbc (Rhizophoraceae)<\/i>, h\u1ecd \u0110\u01a1n nem(Myrrinaceae)<\/i>. S\u1ed1 l\u01b0\u1ee3ng c\u00e2y m\u1eb9 c\u1ee7a c\u00e1c lo\u00e0i \u0110\u01b0\u1edbc, \u0110\u01b0ng, \u0110\u00e2ng v\u00e0 S\u00fa \u0111\u1ecf kh\u00e1 \u0111\u1ed3ng \u0111\u1ec1u, bi\u1ebfn \u0111\u1ed9ng t\u1eeb 26 \u0111\u1ebfn 32 c\u00e2y. Lo\u00e0i c\u00f3 s\u1ed1 l\u01b0\u1ee3ng c\u00e2y m\u1eb9 \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn nhi\u1ec1u nh\u1ea5t l\u00e0 S\u00fa \u0111\u1ecf v\u1edbi 32 c\u00e2y, ph\u00e2n b\u1ed1 t\u1eadp trung \u1edf C\u00f4n \u0110\u1ea3o 21 c\u00e2y v\u00e0 \u1edf H\u00f2n Tre, Nha Trang 11 c\u00e2y. Lo\u00e0i c\u00f3 s\u1ed1 l\u01b0\u1ee3ng c\u00e2y \u00edt nh\u1ea5t l\u00e0 lo\u00e0i D\u00e0 v\u00f4i v\u00e0 V\u1eb9t b\u00f4ng \u0111\u1ecf, v\u1edbi 10 c\u00e2y m\u1eb9 \u0111\u01b0\u1ee3c ch\u1ecdn, ph\u00e2n b\u1ed1 \u1edf C\u00f4n \u0110\u1ea3o, nguy\u00ean nh\u00e2n l\u00e0 lo\u00e0i D\u00e0 v\u00f4i v\u00e0 V\u1eb9t b\u00f4ng \u0111\u1ecf ch\u1ec9 \u0111\u01b0\u1ee3c ch\u1ecdn \u0111\u1ec3 thu h\u00e1i h\u1ea1t gi\u1ed1ng ph\u1ee5c v\u1ee5 cho tr\u1ed3ng r\u1eebng th\u00ed nghi\u1ec7m t\u1ea1i C\u00f4n \u0110\u1ea3o. T\u01b0\u01a1ng t\u1ef1, lo\u00e0i M\u1eafm bi\u1ec3n c\u0169ng c\u00f3 s\u1ed1 l\u01b0\u1ee3ng \u00edt l\u00e0 21 c\u00e2y, ph\u00e2n b\u1ed1 \u1edf c\u00e1c \u0111\u1ea3o khu v\u1ef1c Mi\u1ec1n Trung v\u00e0 c\u0169ng \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn ri\u00eang cho v\u00f9ng mi\u1ec1n Trung.<\/p>\n
V\u1ec1 s\u1ed1 c\u00e2y m\u1eb9 ph\u00e2n b\u1ed1 theo \u0111\u1ecba ph\u01b0\u01a1ng th\u00ec C\u00f4n \u0110\u1ea3o c\u00f3 s\u1ed1 l\u01b0\u1ee3ng c\u00e2y m\u1eb9 l\u1edbn nh\u1ea5t c\u00f3 \u0111\u1ebfn 87 c\u00e2y m\u1eb9 \/6 lo\u00e0i \u0111\u01b0\u1ee3c ch\u1ecdn t\u1ea1i H\u00f2n C\u00f4n S\u01a1n, H\u00f2n B\u00e0 v\u00e0 H\u00f2n B\u1ea3y C\u1ea1nh; k\u1ebf ti\u1ebfp l\u00e0 H\u00f2n Tre, Nha trang v\u1edbi 29 c\u00e2y m\u1eb9\/4 lo\u00e0i \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn;\u00a0 khu v\u1ef1c Ninh H\u00f2a c\u00f3 23 c\u00e2y m\u1eb9 \/2 lo\u00e0i l\u1ef1a ch\u1ecdn; s\u1ed1 l\u01b0\u1ee3ng c\u00e2y m\u1eb9 \u00edt nh\u1ea5t l\u00e0 c\u00e1c \u0111\u1ea3o \u1edf V\u1ea1n Ninh, Kh\u00e1nh H\u00f2a v\u00e0 S\u00f4ng C\u1ea7u, Ph\u00fa Y\u00ean v\u1edbi 10 v\u00e0 12 c\u00e2y m\u1eb9\/1-2 lo\u00e0i c\u00e2y l\u1ef1a ch\u1ecdn.<\/p>\n
4.3. K\u1ebft qu\u1ea3 th\u00ed nghi\u1ec7m t\u1ea1o c\u00e2y con<\/b><\/p>\n
4.3. 1. K\u1ebft qu\u1ea3 theo d\u00f5i kh\u1ea3 n\u0103ng ra r\u1ec5<\/b><\/p>\n
M\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m v\u1ec1 h\u1ec7 r\u1ec5 c\u1ee7a 6 lo\u00e0i c\u00e2y th\u1eed nghi\u1ec7m gieo \u01b0\u01a1m, th\u1ea5y r\u1eb1ng s\u1ed1 l\u01b0\u1ee3ng r\u1ec5 c\u1ee7a c\u00e1c lo\u00e0i nghi\u00ean c\u1ee9u r\u1ea5t kh\u00e1c nhau, nhi\u1ec1u r\u1ec5 nh\u1ea5t l\u00e0 lo\u00e0i Rs v\u1edbi 28.8 r\u1ec5\/c\u00e2y, k\u1ebf ti\u1ebfp l\u00e0 lo\u00e0i Rm v\u1edbi 16.3 r\u1ec5\/c\u00e2y, lo\u00e0i c\u00f3 s\u1ed1 r\u1ec5 \u00edt nh\u1ea5t l\u00e0 lo\u00e0i S\u00fa \u0111\u1ecf v\u1edbi 3 r\u1ec5\/c\u00e2y v\u00e0 lo\u00e0i m\u1eafm bi\u1ec3n (4.5 r\u1ec5\/c\u00e2y).<\/p>\n
V\u1ec1 chi\u1ec1u d\u00e0i r\u1ec5: 3 lo\u00e0i c\u00e2y c\u00f3 chi\u1ec1u d\u00e0i r\u1ec5 t\u1ed1i \u0111a kh\u00e1 b\u1eb1ng nhau l\u00e0 lo\u00e0i Am, Rs v\u00e0 Ra, bi\u1ebfn \u0111\u1ed9ng 7.2 \u2013 7.8 cm. Ba lo\u00e0i c\u00f2n l\u1ea1i chi\u1ec1u d\u00e0i r\u1ec5 bi\u1ebfn \u0111\u1ed9ng trong kho\u1ea3ng t\u1eeb 3.0 \u2013 4.4 cm l\u00e0 S\u00fa \u0111\u1ecf, Rm v\u00e0 Ct.<\/p>\n
\u0110\u1eb7c bi\u1ec7t v\u1ec1 t\u1ef7 l\u1ec7 gi\u1eefa chi\u1ec1u d\u00e0i r\u1ec5 v\u00e0 chi\u1ec1u cao c\u1ee7a c\u00e2y: Hai lo\u00e0i S\u00fa \u0111\u1ecf v\u00e0 M\u1eafm bi\u1ec3n c\u00f3 t\u1ef7 l\u1ec7 ngang nhau v\u00e0 cao nh\u1ea5t l\u00e0 5\/10; ti\u1ebfp theo l\u00e0 hai lo\u00e0i c\u0169ng c\u00f3 c\u00f9ng t\u1ef7 l\u1ec7 l\u00e0 \u0110\u01b0\u1edbc v\u00e0 \u0110\u00e2ng (3\/10); lo\u00e0i c\u00f3 t\u1ef7 l\u1ec7 th\u1ea5p nh\u1ea5t l\u00e0 \u0110\u01b0ng (1\/10) v\u00e0 D\u00e0 v\u00f4i (2\/10).<\/p>\n
T\u1ef7 l\u1ec7 gi\u1eefa chi\u1ec1u d\u00e0i r\u1ec5 v\u00e0 chi\u1ec1u cao c\u00e2y c\u00f3 \u00fd ngh\u0129a quan tr\u1ecdng, \u0111\u1ec3 th\u00edch \u1ee9ng v\u1edbi \u0111i\u1ec1u ki\u1ec7n ngo\u1ea1i c\u1ea3nh kh\u1eafc nghi\u1ec7t r\u1ec5 c\u00e2y ph\u1ea3i \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n nhanh \u0111\u1ec3 c\u00f3 kh\u1ea3 n\u0103ng b\u00e1m \u0111\u01b0\u1ee3c v\u00e0o \u0111\u1ea5t \u0111\u00e1 v\u00e0 thu nh\u1eadn dinh d\u01b0\u1ee1ng trong m\u00f4i tr\u01b0\u1eddng ngh\u00e8o dinh d\u01b0\u1ee1ng nh\u01b0 trong th\u00ed nghi\u1ec7m gieo \u01b0\u01a1m v\u00e0 tr\u1ed3ng r\u1eebng.<\/p>\n
4.3.2. K\u1ebft qu\u1ea3 theo d\u00f5i sinh tr\u01b0\u1edfng chi\u1ec1u cao<\/b><\/p>\n
+ Sinh tr\u01b0\u1edfng v\u1ec1 chi\u1ec1u cao c\u1ee7a c\u00e1c lo\u00e0i c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t nhau r\u1ea5t r\u00f5 r\u1ec7t. C\u1ee5 th\u1ec3 lo\u00e0i \u0110\u01b0ng c\u00f3 sinh tr\u01b0\u1edfng v\u1ec1 chi\u1ec1u cao nhanh nh\u1ea5t (56.3 cm) g\u1ea5p 10 l\u1ea7n so v\u1edbi lo\u00e0i th\u1ea5p nh\u1ea5t l\u00e0 lo\u00e0i S\u00fa \u0111\u1ecf (5.33 cm). Tuy nhi\u00ean, \u0111\u00e2y kh\u00f4ng ph\u1ea3n \u00e1nh \u0111\u01b0\u1ee3c lo\u00e0i n\u00e0o l\u00e0 lo\u00e0i sinh tr\u01b0\u1edfng t\u1ed1t nh\u1ea5t, b\u1edfi c\u00e1c lo\u00e0i c\u00f3 chi\u1ec1u cao c\u1ee7a tr\u1ee5 m\u1ea7m\/h\u1ea1t kh\u00e1c nhau.<\/p>\n
+ Trong c\u00f9ng m\u1ed9t lo\u00e0i \u1edf c\u00e1c th\u00e0nh ph\u1ea7n ru\u1ed9t b\u1ea7u v\u1edbi t\u1ef7 l\u1ec7 pha tr\u1ed9n kh\u00e1c nhau c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t r\u1ea5t r\u00f5 r\u1ec7t v\u1ec1 ph\u01b0\u01a1ng di\u1ec7n th\u1ed1ng k\u00ea to\u00e1n h\u1ecdc.<\/p>\n
\u0110\u01b0\u1edbc \u0111\u00f4i c\u00f3 chi\u1ec1u cao \u0111\u1ea1t t\u1ed1t nh\u1ea5t \u1edf Ct3 v\u00e0 th\u1ea5p nh\u1ea5t \u1edf Cto; t\u01b0\u01a1ng t\u1ef1 lo\u00e0i \u0110\u00e2ng v\u00e0 \u0110\u01b0ng c\u0169ng c\u00f3 chi\u1ec1u cao t\u1ed1t nh\u1ea5t \u1edf Ct1, nh\u01b0ng Ct2 l\u1ea1i l\u00e0 nghi\u1ec7m th\u1ee9c c\u00f3 chi\u1ec1u cao th\u1ea5p nh\u1ea5t; D\u00e0 v\u00f4i t\u1ed1t nh\u1ea5t \u1edf Ct3,k\u1ebf \u0111\u1ebfn Cto v\u00e0 th\u1ea5p nh\u1ea5t l\u00e0 Ct1 v\u00e0 Ct2.<\/p>\n
Hai lo\u00e0i M\u1eafm bi\u1ec3n v\u00e0 S\u00fa \u0111\u1ecf \u0111\u1ec1u c\u00f3 chi\u1ec1u cao t\u1ed1t nh\u1ea5t \u1edf Ct3 l\u00e0 8.93 cm v\u00e0 5.8 cm, k\u1ebft ti\u1ebfp l\u00e0 Ct1, sau \u0111\u00f3 l\u00e0 Ct2 v\u00e0 th\u1ea5p nh\u1ea5t c\u0169ng l\u00e0 Cto.<\/p>\n
+ C\u00e1c lo\u00e0i t\u1ecf ra th\u00edch nghi v\u1edbi th\u00e0nh ph\u1ea7n ru\u1ed9t b\u1ea7u c\u00f3 t\u1ef7 l\u1ec7 pha tr\u1ed9n 50% \u0111\u1ea5t b\u00f9n\u00a0 v\u00e0 ch\u00fang \u0111\u1ec1 t\u1ecf ra k\u00e9m th\u00edch nghi \u1edf th\u00e0nh ph\u1ea7n ru\u1ed9t b\u1ea7u c\u00f3 pha tr\u1ed9n 0- 30% b\u00f9n \u0111\u1ea5t.<\/p>\n
4.4. K\u1ebft qu\u1ea3 th\u00ed nghi\u1ec7m g\u00e2y tr\u1ed3ng\u00a0\u00a0\u00a0 <\/b><\/p>\n
4.4.1. K\u1ebft qu\u1ea3 theo d\u00f5i t\u1ef7 l\u1ec7 s\u1ed1ng th\u00ed nghi\u1ec7m nghi\u00ean c\u1ee9u \u1ea3nh h\u01b0\u1edfng c\u1ee7a l\u1eadp \u0111\u1ecba \u0111\u1ebfn kh\u1ea3 n\u0103ng sinh tr\u01b0\u1edfng c\u1ee7a lo\u00e0i c\u00e2y l\u1ef1a ch\u1ecdn. <\/b><\/p>\n
B\u01b0\u1edbc \u0111\u1ea7u \u0111\u00e3 nghi nh\u1eadn \u0111\u01b0\u1ee3c t\u1ef7 l\u1ec7 s\u1ed1ng sau 3 th\u00e1ng tr\u1ed3ng c\u1ee7a c\u00e1c lo\u00e0i c\u00e2y th\u00ed nghi\u1ec7m nghi\u1ec7m, lo\u00e0i c\u00e2y c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng cao nh\u1ea5t l\u00e0 lo\u00e0i \u0110\u00e2ng (Rs) 58%,\u00a0 k\u1ebf \u0111\u1ebfn l\u00e0 lo\u00e0i m\u1eafm bi\u1ec3n (Am) 56%, lo\u00e0i V\u1eb9t b\u00f4ng \u0111\u1ecf 55%, lo\u00e0i \u0110\u01b0ng (Rm) l\u00e0 50%. C\u00e1c lo\u00e0i c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng r\u1ea5t th\u1ea5p nh\u01b0 D\u00e0 v\u00f4i (Ct)25%, lo\u00e0i \u0110\u01b0\u1edbc (Ra) 25%, \u0111\u1eb7c bi\u1ec7t lo\u00e0i S\u00fa \u0111\u1ecf(Af) cho t\u1ef7 l\u1ec7 t\u1ec7 nh\u1ea5t v\u1edbi 2%. So s\u00e1nh t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a c\u00e1c lo\u00e0i tr\u00ean 3 d\u1ea1ng l\u1eadp \u0111\u1ecba th\u00ed nghi\u1ec7m th\u00ec d\u1ea1ng l\u1eadp \u0111\u1ecba s\u1ecfi, c\u00e1t c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng kh\u00e1 h\u01a1n; k\u1ebf ti\u1ebfp l\u00e0 d\u1ea1ng l\u1eadp \u0111\u1ecba \u0111\u00e1, c\u00e1t; th\u1ea5p nh\u1ea5t l\u00e0 d\u1ea1ng san h\u00f4, c\u00e1t<\/p>\n
4.4.2. K\u1ebft qu\u1ea3 theo d\u00f5i t\u1ef7 l\u1ec7 s\u1ed1ng th\u00ed nghi\u1ec7m v\u1ec1 v\u1eadt li\u1ec7u tr\u1ed3ng <\/b><\/p>\n
T\u01b0\u01a1ng t\u1ef1 nh\u01b0 th\u00ed nghi\u1ec7m 1, b\u01b0\u1edbc \u0111\u1ea7u \u0111\u00e3 nghi nh\u1eadn \u0111\u01b0\u1ee3c t\u1ef7 l\u1ec7 s\u1ed1ng sau 3 th\u00e1ng tr\u1ed3ng c\u1ee7a c\u00e1c lo\u00e0i c\u00e2y th\u00ed nghi\u1ec7m l\u00e0\u00a0 lo\u00e0i \u0110\u00e2ng (Rs) t\u1ef7 l\u1ec7 s\u1ed1ng cao nh\u1ea5t 50%,\u00a0 k\u1ebf \u0111\u1ebfn l\u00e0 lo\u00e0i V\u1eb9t b\u00f4ng \u0111\u1ecf 48%, lo\u00e0i \u0110\u01b0ng (Rm) l\u00e0 45%. C\u0169ng nh\u01b0 th\u00ed nghi\u1ec7m 1 c\u00e1c lo\u00e0i D\u00e0 v\u00f4i (Ct), lo\u00e0i \u0110\u01b0\u1edbc (Ra) c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng r\u1ea5t th\u1ea5p t\u1eeb 15 \u2013 20%. Khi so s\u00e1nh t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a c\u00e1c lo\u00e0i theo c\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m th\u00ec t\u1ef7 l\u1ec7 s\u1ed1ng cao nh\u1ea5t \u1edf nghi\u1ec7m th\u1ee9c c\u00f3 b\u1ed5 sung m\u1ed9t l\u01b0\u1ee3ng b\u00f9n l\u1ea5y t\u1eeb r\u1eebng ng\u1eadp m\u1eb7n, k\u1ebf \u0111\u1ebfn l\u00e0 nghi\u1ec7m th\u1ee9c c\u00f3 s\u1eed d\u1ee5ng c\u1ecdc n\u00e2ng \u0111\u1ee1 tr\u1ee5 m\u1ea7m, th\u1ea5p nh\u1ea5t l\u00e0 d\u1ea1ng c\u1eafm tr\u1ef1c ti\u1ebfp xu\u1ed1ng h\u1ed1, sau x\u1ebfp \u0111\u00e1 xung quanh.<\/p>\n
<\/p>\n
4.4.3. K\u1ebft qu\u1ea3 th\u00ed nghi\u1ec7m c\u00e1c ph\u01b0\u01a1ng th\u1ee9c tr\u1ed3ng (tr\u1ed3ng theo h\u00e0ng, theo b\u0103ng, theo \u0111\u00e1m)<\/b><\/p>\n
K\u1ebft qu\u1ea3 th\u00ed nghi\u1ec7m \u0111\u00e3 ghi nh\u1eadn \u0111\u01b0\u1ee3c \u00a0\u0111\u01b0\u1ee3c t\u1ef7 l\u1ec7 s\u1ed1ng sau 3 th\u00e1ng tr\u1ed3ng c\u1ee7a c\u00e1c lo\u00e0i c\u00e2y th\u00ed nghi\u1ec7m lo\u00e0i \u0110\u00e2ng (Rs) c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng cao h\u01a1n c\u1ea3 v\u1edbi 57%,\u00a0 k\u1ebf \u0111\u1ebfn l\u00e0 lo\u00e0i m\u1eafm bi\u1ec3n (Am) 55%, lo\u00e0i V\u1eb9t b\u00f4ng \u0111\u1ecf 54%, lo\u00e0i \u0110\u01b0ng (Rm) l\u00e0 52%. C\u00e1c lo\u00e0i c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng r\u1ea5t th\u1ea5p nh\u01b0 D\u00e0 v\u00f4i (Ct)23%, lo\u00e0i \u0110\u01b0\u1edbc (Ra) 22%, \u0111\u1eb7c bi\u1ec7t lo\u00e0i S\u00fa \u0111\u1ecf(Af) cho t\u1ef7 l\u1ec7 t\u1ec7 nh\u1ea5t v\u1edbi 5%. Khi so s\u00e1nh t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a c\u00e1c lo\u00e0i theo c\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m th\u00ec th\u1ea5y r\u1eb1ng ch\u01b0a c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0o gi\u1eefa c\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m. C\u00f3 l\u1ebd c\u00e1c ph\u01b0\u01a1ng th\u1ee9c tr\u1ed3ng ch\u01b0a c\u00f3 \u1ea3nh h\u01b0\u1edfng g\u00ec \u0111\u1ebfn t\u1ef7 l\u1ec7 s\u1ed1ng c\u1ee7a c\u00e1c lo\u00e0i c\u00e2y g\u00e2y tr\u1ed3ng.<\/p>\n
<\/p>\n
5. K\u1ebeT LU\u1eacN<\/p>\n
– V\u1ec1 th\u00e0nh ph\u1ea7n lo\u00e0i th\u1ef1c v\u1eadt ph\u00e2n b\u1ed1 tr\u00ean d\u1ea1ng \u0111\u00e1 c\u00e1t, s\u1ecfi, v\u1ee5n san h\u00f4 th\u00ec khu v\u1ef1c \u0110BSCL c\u00f3\u00a0 22, trong \u0111\u00f3 5 lo\u00e0i c\u00f3 th\u1ec3 \u0111\u01b0a v\u00e0o th\u1eed nghi\u1ec7m g\u00e2y tr\u1ed3ng l\u00e0 \u0110\u01b0\u1edbc, V\u1eb9t b\u00f4ng \u0111\u1ecf, M\u1eafm tr\u1eafng, Gi\u00e1 v\u00e0 C\u00f3c tr\u1eafng<\/span>; khu v\u1ef1c C\u00f4n \u0110\u1ea3o c\u00f3 22 lo\u00e0i c\u00e2y RNM, 5 lo\u00e0i \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng, chi\u1ebfm \u01b0u th\u1ebf l\u00e0 S\u00fa \u0111\u1ecf, V\u1eb9t d\u00f9 b\u00f4ng \u0111\u1ecf, D\u00e0 v\u00f4i, \u0110\u01b0ng, \u0110\u01b0\u1edbc \u0111\u00f4i v\u00e0 \u0110\u00e2ng; <\/span>mi\u1ec1n Trung c\u00f3 23 lo\u00e0i,\u00a0 c\u00e1c lo\u00e0i theo th\u1ee9 t\u1ef1 \u01b0u ti\u00ean l\u00e0 M\u1eafm bi\u1ec3n, \u0110\u00e2ng, \u0110\u01b0\u1edbc \u0111\u00f4i, C\u00f3c Tr\u1eafng, Gi\u00e1, \u0110\u01b0ng, S\u00fa \u0111\u1ecf. <\/span>.- S\u1ed1 l\u01b0\u1ee3ng c\u00e2y m\u1eb9 \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn bao g\u1ed3m 160 c\u00e2y\/7 lo\u00e0i, lo\u00e0i S\u00fa \u0111\u1ecf c\u00f3 s\u1ed1 l\u01b0\u1ee3ng nhi\u1ec1u nh\u1ea5t 32 c\u00e2y, k\u1ebf ti\u1ebfp l\u00e0 \u0110\u00e2ng 31 c\u00e2y, \u0110\u01b0ng 30 c\u00e2y, \u0110\u01b0\u1edbc \u0111\u00f4i 26 c\u00e2y, M\u1eafm bi\u1ec3n 21 v\u00e0 \u00edt nh\u1ea5t l\u00e0 D\u00e0 v\u00f4i v\u00e0 V\u1eb9t b\u00f4ng \u0111\u1ecf v\u1edbi 10 c\u00e2y m\u1eb9 \u0111\u01b0\u1ee3c ch\u1ecdn.Ch\u1ea5t l\u01b0\u1ee3ng c\u00e2y m\u1eb9 \u0111a s\u1ed1 c\u00e2y m\u1eb9 \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn c\u00f3 c\u00e1c ch\u1ec9 s\u1ed1 v\u1ec1 sinh tr\u01b0\u1edfng (D1,3m, Hvn, Dtan, Dre) \u0111\u1ec1 l\u1edbn h\u01a1n ho\u1eb7c b\u1eb1ng 1.5 l\u1ea7n sai chu\u1ea9n c\u1ee7a 10 c\u00e2y c\u00f9ng lo\u00e0i xung quanh c\u00e2y m\u1eb9<\/p>\n– V\u1ec1 kh\u1ea3 n\u0103ng ra r\u1ec5 c\u00e2y gieo \u01b0\u01a1m: lo\u00e0i Rs v\u1edbi 28.8 r\u1ec5\/c\u00e2y, \u00edt nh\u1ea5t l\u00e0 lo\u00e0i S\u00fa \u0111\u1ecf v\u1edbi 3 r\u1ec5\/c\u00e2y. V\u1ec1 chi\u1ec1u d\u00e0i r\u1ec5: 3 lo\u00e0i c\u00e2y c\u00f3 chi\u1ec1u d\u00e0i r\u1ec5 l\u1edbn nh\u1ea5t l\u00e0 M\u1eafm bi\u1ec3n, \u0110\u00e2ng v\u00e0 \u0110\u01b0\u1edbc, Ba lo\u00e0i S\u00fa \u0111\u1ecf, \u0110\u01b0ng v\u00e0 D\u00e0 v\u00f4i chi\u1ec1u d\u00e0i r\u1ec5 ng\u1eafn h\u01a1n; t\u1ef7 l\u1ec7 gi\u1eefa chi\u1ec1u d\u00e0i r\u1ec5 v\u00e0 chi\u1ec1u cao c\u1ee7a c\u00e2y c\u1ee7a 2 lo\u00e0i S\u00fa \u0111\u1ecf v\u00e0 M\u1eafm bi\u1ec3n cao nh\u1ea5t l\u00e0 5\/10; k\u1ebf ti\u1ebfp l\u00e0 \u0110\u01b0\u1edbc v\u00e0 \u0110\u00e2ng (3\/10); cu\u1ed1i c\u00f9ng l\u00e0 \u0110\u01b0ng (1\/10) v\u00e0 D\u00e0 v\u00f4i (2\/10).<\/p>\n
– V\u1ec1 chi\u1ec1u cao c\u00e2y gieo \u01b0\u01a1m<\/i> c\u00e1c lo\u00e0i c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t nhau r\u1ea5t r\u00f5 r\u1ec7t, lo\u00e0i \u0110\u01b0ng c\u00f3 sinh tr\u01b0\u1edfng v\u1ec1 chi\u1ec1u cao nhanh nh\u1ea5t (56.3 cm) g\u1ea5p 10 l\u1ea7n so v\u1edbi lo\u00e0i th\u1ea5p nh\u1ea5t l\u00e0 lo\u00e0i S\u00fa \u0111\u1ecf (5.33 cm). Th\u00e0nh ph\u1ea7n ru\u1ed9t b\u1ea7u v\u1edbi t\u1ef7 l\u1ec7 pha tr\u1ed9n kh\u00e1c nhau c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t r\u1ea5t r\u00f5 c\u00e1c lo\u00e0i t\u1ecf ra th\u00edch nghi v\u1edbi th\u00e0nh ph\u1ea7n ru\u1ed9t b\u1ea7u c\u00f3 t\u1ef7 l\u1ec7 pha tr\u1ed9n 50% \u0111\u1ea5t b\u00f9n\u00a0 v\u00e0 ch\u00fang \u0111\u1ec1 t\u1ecf ra k\u00e9m th\u00edch nghi \u1edf th\u00e0nh ph\u1ea7n ru\u1ed9t b\u1ea7u c\u00f3 pha tr\u1ed9n 0- 30% b\u00f9n \u0111\u1ea5t.<\/p>\n
– V\u1ec1 th\u00ed nghi\u1ec7m g\u00e2y tr\u1ed3ng, c\u1ea3 3 th\u00ed nghi\u1ec7m v\u1ec1 l\u1eadp \u0111\u1ecba, ph\u01b0\u01a1ng th\u1ee9c tr\u1ed3ng v\u00e0 v\u1eadt li\u1ec7u tr\u1ed3ng \u0111\u1ec1u ch\u01b0a c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c c\u00f4ng th\u1ee9c th\u00ed nghi\u1ec7m. tuy nhi\u00ean, v\u1ec1 t\u1ef7 l\u1ec7 s\u1ed1ng \u0111\u00e3 c\u1edb s\u1ef1 ph\u00e2n nh\u00f3m kh\u00e1 r\u00f5 n\u00e9t. Nh\u00f3m c\u00e2y c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng tr\u00ean 50% g\u1ed3m \u0110\u00e2ng, M\u1eafm bi\u1ec3n, V\u1eb9t b\u00f4ng \u0111\u1ecf v\u00e0 \u0110\u01b0ng. Nh\u00f3m c\u00e2y c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng th\u1ea5p d\u01b0\u1edbi 25% g\u1ed3m S\u00fa \u0111\u1ecf, D\u00e0 v\u00f4i v\u00e0 \u0110\u01b0\u1edbc<\/p>\n
<\/p>\n
\u00a0Ki\u1ebfn ngh\u1ecb<\/strong><\/p>\n–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 N\u0103m 2011 \u0111\u1ec1 t\u00e0i ch\u1ec9 n\u00ean t\u1eadp trung v\u00e0o tr\u1ed3ng nh\u1eefng lo\u00e0i c\u00e2y c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng t\u1eeb 50% tr\u1edf l\u00ean l\u00e0 \u0110\u00e2ng, M\u1eafm bi\u1ec3n, V\u1eb9t b\u00f4ng \u0111\u1ecf v\u00e0 \u0110\u01b0ng.<\/p>\n
–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Trong th\u1eddi gian t\u1edbi c\u1ea7n th\u1eed nghi\u1ec7m g\u00e2y tr\u1ed3ng th\u00eam m\u1ed9t s\u1ed1 lo\u00e0i c\u00e2y RNM tr\u00ean d\u1ea1ng \u0111\u00e1, c\u00e1t, v\u1ee5n san h\u00f4 t\u1ea1i m\u1ed9t s\u1ed1 v\u00f9ng ven bi\u1ec3n v\u00e0 \u0111\u1ea3o ph\u00eda Nam nh\u01b0 Gi\u00e1 (Excoecaria agallocha)<\/i>, M\u1eafm tr\u1eafng (Avicennia alba),<\/i> Xu \u1ed5i (Xylocarpus granatum),<\/i> xu Jumphii(X.jumphii),<\/i> B\u1ea7n tr\u1eafng (Sonneratia alba), <\/i>B\u1eb1ng phi (Pemphis acidula)<\/i><\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
Ths. Ho\u00e0ng V\u0103n Th\u01a1i I. \u0110\u1eb6T V\u1ea4N \u0110\u1ec0 C\u00e1c h\u1ec7 sinh th\u00e1i \u0111\u1ea5t ng\u1eadp n\u01b0\u1edbc ven bi\u1ec3n nh\u01b0 r\u1eebng ng\u1eadp m\u1eb7n, c\u00e1c r\u1ea1n san h\u00f4 c\u00f3 vai tr\u00f2 r\u1ea5t quan tr\u1ecdng trong cu\u1ed9c s\u1ed1ng c\u1ee7a con ng\u01b0\u1eddi. \u0110\u00e2y l\u00e0 v\u00f9ng cung c\u1ea5p ngu\u1ed3n h\u1ea3i s\u1ea3n phong ph\u00fa \u0111\u1ec3 s\u1eed d\u1ee5ng trong n\u01b0\u1edbc v\u00e0 xu\u1ea5t kh\u1ea9u, […]<\/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\/14975"}],"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=14975"}],"version-history":[{"count":3,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/14975\/revisions"}],"predecessor-version":[{"id":14981,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/14975\/revisions\/14981"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=14975"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=14975"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=14975"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"15-04-22](\"http:\/\/vafs.gov.vn\/vn\/wp-content\/uploads\/sites\/2\/2015\/04\/15-04-22-TR-ngapman1.jpg\")
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