{"id":10717,"date":"2021-11-22T17:22:08","date_gmt":"2021-11-22T10:22:08","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=10717"},"modified":"2021-11-22T18:17:37","modified_gmt":"2021-11-22T11:17:37","slug":"lam-the-nao-de-xac-dinh-tuoi-cua-cay","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/lam-the-nao-de-xac-dinh-tuoi-cua-cay\/","title":{"rendered":"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh tu\u1ed5i c\u1ee7a c\u00e2y?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">T\u1ea1i nh\u1eefng v\u00f9ng c\u00f3 kh\u00ed h\u1eadu c\u00f3 t\u00ednh bi\u1ebfn ho\u00e1 r\u00f5 r\u00e0ng v\u1ec1 m\u00f9a v\u1ee5, \u1edf trong b\u1ed9 m\u1ed9c ch\u1ea5t th\u1ee9 sinh trong c\u00e2y th\u1ef1c v\u1eadt h\u1ecd m\u1ed9c b\u1ea3n s\u1ed1ng l\u00e2u n\u0103m, m\u1ed7i n\u0103m \u0111\u1ec1u h\u00ecnh th\u00e0nh \u0111\u01b0\u1eddng vi\u1ec1n hoa v\u0103n c\u00f3 bi\u00ean gi\u1edbi r\u00f5 r\u00e0ng, g\u1ecdi l\u00e0 v\u00f2ng \u0111\u1eddi, c\u0169ng c\u00f3 t\u00ean l\u00e0 v\u00f2ng sinh tr\u01b0\u1edfng hay t\u1ea9ng sinh tr\u01b0\u1edfng, l\u00e0 c\u0103n c\u1ee9 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh tu\u1ed5i c\u1ee7a c\u00e2y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 h\u00ecnh th\u00e0nh c\u1ee7a b\u1ed9 th\u1ee9 sinh m\u1ed9c ch\u1ea5t, l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a ho\u1ea1t \u0111\u1ed9ng h\u00ecnh th\u00e0nh t\u1ea9ng m\u00e0 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a t\u1ea9ng h\u00ecnh th\u00e0nh l\u1ea1i ch\u1ecbu \u1ea3nh h\u01b0\u1edfng c\u1ee7a kh\u00ed h\u1eadu c\u00f3 t\u00ednh m\u00f9a v\u1ee5, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf nh\u1eefng v\u00f9ng \u00f4n \u0111\u1edbi v\u00e0 nhi\u1ec7t \u0111\u1edbi c\u00f3 th\u1eddi ti\u1ebft kh\u00f4, \u1ea9m. V\u00ed d\u1ee5 nh\u01b0 \u1edf v\u00f9ng \u00f4n \u0111\u1edbi, t\u1eeb m\u00f9a xu\u00e2n \u0111\u1ebfn m\u00f9a h\u1ea1, kh\u00ed h\u1eadu l\u00fac n\u00e0y r\u1ea5t th\u00edch nghi cho s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e2y c\u1ed1i, t\u1ebf b\u00e0o c\u1ee7a t\u1ea9ng h\u00ecnh th\u00e0nh ph\u00e2n bi\u1ec7t r\u1ea5t nhanh ch\u00f3ng, sinh tr\u01b0\u1edfng mau ch\u00f3ng, h\u00ecnh th\u00e0nh t\u1ebf b\u00e0o b\u1ed9 m\u1ed9c ch\u1ea5t, r\u1ed7ng x\u1ed1p v\u00e1ch m\u1ecfng, s\u1ee3i t\u01a1 \u00edt, \u1ed1ng d\u1eabn chuy\u00ean ch\u1edf thu\u1ef7 ph\u00e2n r\u1ea5t nhi\u1ec1u, g\u1ecdi l\u00e0 g\u1ed7 m\u00f9a xu\u00e2n. \u0110\u1ebfn m\u00f9a thu, ho\u1ea1t \u0111\u1ed9ng c\u1ee7a t\u1ebf b\u00e0o b\u1ed9 m\u1ed9c ch\u1ebft, ch\u1eb7t ch\u1ebd v\u00e1ch d\u00e0y, t\u01a1 s\u1ee3i nhi\u1ec1u, \u1ed1ng d\u1eabn \u00edt, g\u1ecdi l\u00e0 g\u1ed7 m\u00f9a thu ho\u1eb7c l\u00e0 g\u1ed7 mu\u1ed9n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ea5t g\u1ed7 m\u00f9a xu\u00e2n x\u1ed1p m\u1ec1m, m\u00e0u h\u01a1i nh\u1ea1t, ch\u1ea5t g\u1ed7 m\u00f9a thu ch\u1eafc ch\u1eafn, m\u00e0u s\u1eafc \u0111\u1eadm h\u01a1n. G\u1ed7 xu\u00e2n v\u00e0 g\u1ed7 thu, \u00f4m nhau th\u00e0nh m\u1ed9t v\u00f2ng tr\u00f2n, \u0111\u1ea5y ch\u00ednh l\u00e0 \u201cv\u00f2ng \u0111\u1eddi\u201d v\u00f2ng c\u1ee7a m\u1ed9t n\u0103m tu\u1ed5i c\u1ee7a c\u00e2y g\u1ed7. C\u1ee9 m\u1ed7i m\u1ed9t n\u0103m l\u00e0 m\u1ed9t v\u00f2ng, \u0111\u1ebfm bao nhi\u00eau v\u00f2ng l\u00e0 bi\u1ebft ngay tu\u1ed5i c\u1ee7a ch\u00fang l\u00e0 bao nhi\u00eau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c c\u00e2y g\u1ed7 \u0111\u1ec1u c\u00f3 v\u00f2ng \u0111\u1eddi, nh\u01b0 th\u1ef1c v\u1eadt l\u00e1 \u0111\u01a1n ch\u1eb3ng h\u1ea1n, v\u00ec kh\u00f4ng h\u00ecnh th\u00e0nh t\u1ea9ng, n\u00ean kh\u00f4ng c\u00f3 v\u00f2ng \u0111\u1eddi. \u1ede c\u00e1c v\u00f9ng nhi\u1ec7t \u0111\u1edbi do m\u00f9a v\u1ee5 kh\u00f4ng \u0111\u1ee7 n\u00ean t\u1ebf b\u00e0o s\u1ea3n sinh c\u1ee7a t\u1ea9ng h\u00ecnh th\u00e0nh r\u1ea5t nh\u1ecf, n\u00ean v\u00f2ng \u0111\u1eddi th\u01b0\u1eddng kh\u00f4ng r\u00f5 r\u00e0ng, c\u00f3 l\u00fac c\u00f3 n\u01a1i do \u0111\u1ecba t\u1ea9ng ho\u1ea1t \u0111\u1ed9ng d\u1eef d\u1ed9i. T\u1ea9ng h\u00ecnh th\u00e0nh kh\u00e1c \u0111i, m\u1ed7i n\u0103m c\u00f3 th\u1ec3 sinh ra m\u1ea5y v\u00f2ng \u0111\u1eddi, \u0111\u00e2y g\u1ecdi l\u00e0 v\u00f2ng \u0111\u1eddi gi\u1ea3, nh\u01b0 cam qu\u00fdt, m\u1ed7i n\u0103m c\u00f3 th\u1ec3 sinh ra ba v\u00f2ng \u0111\u1eddi, c\u00f3 nh\u1eefng khi do kh\u00ed h\u1eadu \u0111\u1ed9t bi\u1ebfn, ch\u1ecbu \u1ea3nh h\u01b0\u1edfng c\u1ee7a s\u00e2u h\u1ea1i, c\u0169ng c\u00f3 th\u00eam c\u00e1c v\u00f2ng \u0111\u1eddi gi\u1ea3. V\u1eady th\u00ec n\u1ebfu c\u1ee9 t\u00ednh v\u00f2ng \u0111\u1eddi m\u00e0 ra tu\u1ed5i c\u1ee7a c\u00e2y th\u00ec ph\u1ea3i tr\u1eeb \u0111i c\u00e1c v\u00f2ng \u0111\u1eddi gi\u1ea3 v\u00e0 th\u1ebf l\u00e0 ch\u00fang ta ch\u1ec9 c\u00f3 \u0111\u01b0\u1ee3c m\u1ed9t con s\u1ed1 g\u1ea9n \u0111\u00fang v\u1ec1 tu\u1ed5i c\u1ee7a c\u00e2y.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u1ea1i nh\u1eefng v\u00f9ng c\u00f3 kh\u00ed h\u1eadu c\u00f3 t\u00ednh bi\u1ebfn ho\u00e1 r\u00f5 r\u00e0ng v\u1ec1 m\u00f9a v\u1ee5, \u1edf trong b\u1ed9 m\u1ed9c ch\u1ea5t th\u1ee9 sinh trong c\u00e2y th\u1ef1c v\u1eadt h\u1ecd m\u1ed9c b\u1ea3n s\u1ed1ng l\u00e2u n\u0103m, m\u1ed7i n\u0103m \u0111\u1ec1u h\u00ecnh th\u00e0nh \u0111\u01b0\u1eddng vi\u1ec1n hoa v\u0103n c\u00f3 bi\u00ean gi\u1edbi r\u00f5 r\u00e0ng, g\u1ecdi l\u00e0 v\u00f2ng \u0111\u1eddi, c\u0169ng c\u00f3 t\u00ean l\u00e0 v\u00f2ng [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[1,15],"tags":[],"class_list":["post-10717","post","type-post","status-publish","format-standard","hentry","category-general","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10717","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=10717"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10717\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=10717"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=10717"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=10717"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}