T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 1 – Arkady Leokum<\/p>\n\n\n\n
C\u00f3 \u0111i\u1ec1u k\u1ef3 c\u1ee5c l\u00e0 ta th\u01b0\u1eddng nh\u00ecn c\u00e2y v\u00e0 ng\u1eafm ngh\u00eda, chi\u00eam ng\u01b0\u1ee1ng hoa c\u1ee7a n\u00f3 nh\u01b0ng ta l\u1ea1i ch\u1eb3ng th\u1eadt s\u1ef1 xem x\u00e9t cho k\u1ef9 hoa bao gi\u1edd. N\u1ebfu h\u1ecfi b\u1ea1n: \u201cHoa l\u00e0 g\u00ec?\u201d, ch\u1eafc b\u1ea1n s\u1ebd tr\u1ea3 l\u1eddi: \u201cHoa l\u00e0 hoa, ch\u1edb l\u00e0 g\u00ec?\u201d Ho\u1eb7c b\u1ea1n s\u1ebd tr\u1ea3 l\u1eddi t\u1ec9 m\u1ec9 h\u01a1n: \u201cHoa l\u00e0 c\u00e1i g\u00ec \u0111\u00f3 c\u1ee7a c\u00e2y, c\u00f3 m\u00e0u s\u1eafc r\u1ef1c r\u1ee1 v\u00e0 c\u00f3 th\u1ec3 c\u00f3 h\u01b0\u01a1ng th\u01a1m\u201d. C\u00e2u tr\u1ea3 l\u1eddi \u0111\u00f3 h\u1ea7u nh\u01b0 sai.<\/p>\n\n\n\n
Ch\u1eb3ng h\u1ea1n ta n\u00f3i \u201cc\u00e1nh hoa s\u01a1n th\u00f9 du\u201d, lo\u00e0i hoa n\u1edf v\u00e0o m\u00f9a xu\u00e2n. Th\u1eadt ra, hoa n\u00e0y kh\u00f4ng c\u00f3 c\u00e1nh. C\u00e1i m\u00e0ng b\u1ecdc m\u00e0u tr\u1eafng tr\u00ean c\u00e2y \u201ccallas\u201d c\u0169ng kh\u00f4ng ph\u1ea3i l\u00e0 \u201choa\u201d. \u201cHoa\u201d poinsettia l\u00e0 m\u1ed9t th\u00ed d\u1ee5 kh\u00e1c v\u1ec1 m\u00e0u s\u1eafc c\u1ee7a \u201cl\u00e1\u201d ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 \u201choa\u201d. Trong khi \u1ea5y c\u00e1i t\u00fam r\u00e2u \u1edf \u0111\u1ea7u m\u00fat l\u00e1 c\u1ecf l\u1ea1i ch\u00ednh c\u1ed1ng l\u00e0 hoa. V\u00e0 th\u00f4ng th\u01b0\u1eddng d\u1ec5 th\u1ea5y h\u01a1n: nh\u1eefng s\u1ee3i r\u00e2u b\u1eafp l\u00e0 c\u00e1i g\u00ec, \u0111\u1ed1 b\u1ea1n bi\u1ebft? Hoa c\u1ee7a c\u00e2y b\u1eafp \u0111\u00f3. Th\u1eadt l\u00e0 r\u1eafc r\u1ed1i!<\/p>\n\n\n\n
V\u00e2ng, r\u1eafc r\u1ed1i th\u1eadt! Nh\u01b0ng v\u1edbi nh\u1eefng nh\u00e0 th\u1ea3o m\u1ed9c h\u1ecdc th\u00ec l\u1ea1i \u0111\u01a1n gi\u1ea3n. Theo h\u1ecd, hoa l\u00e0 m\u1ed9t b\u1ed9 ph\u1eadn c\u1ee7a c\u00e2y c\u00f3 ch\u1ee9c n\u0103ng s\u1ea3n xu\u1ea5t ph\u1ea5n ho\u1eb7c th\u1ee5 tinh – ho\u1eb7c c\u1ea3 hai – \u0111\u1ec3 t\u1ea1o ra h\u1ea1t. V\u1eady th\u00ec ch\u1ec9 c\u00f3 gi\u1ed1ng c\u00e2y n\u00e0o c\u00f3 th\u1ec3 t\u1ea1o ra h\u1ea1t th\u00ec m\u1edbi c\u00f3 \u201choa\u201d th\u1ee9 thi\u1ec7t. Do \u0111\u00f3, hoa hu\u1ec7, hoa lay-\u01a1n kh\u00f4ng ph\u1ea3i l\u00e0 hoa m\u00e0 ch\u1ec9 l\u00e0 m\u1ed9t d\u1ea1ng \u0111\u1eb7c bi\u1ec7t c\u1ee7a\u2026 l\u00e1. V\u00e0 ch\u1ec9 nh\u1eefng th\u00e0nh ph\u1ea7n n\u00e0o c\u1ee7a c\u00e2y c\u00f3 li\u00ean quan \u0111\u1ebfn vi\u1ec7c t\u1ea1o h\u1ea1t th\u00ec m\u1edbi \u0111\u01b0\u1ee3c coi l\u00e0 th\u00e0nh ph\u1ea7n c\u1ee7a hoa.<\/p>\n\n\n\n
Th\u1ebf c\u00f2n h\u01b0\u01a1ng v\u00e0 m\u00f9i c\u1ee7a hoa l\u00e0 do \u0111\u00e2u? Hoa t\u1ecfa ra h\u01b0\u01a1ng hay m\u00f9i khi \u1edf c\u00e1nh hoa c\u00f3 m\u1ed9t v\u00e0i lo\u1ea1i d\u1ea7u \u0111\u1eb7c bi\u1ec7t. D\u1ea7u n\u00e0y \u0111\u01b0\u1ee3c c\u00e2y s\u1ea3n xu\u1ea5t ra nh\u01b0 m\u1ed9t th\u00e0nh ph\u1ea7n trong qu\u00e1 tr\u00ecnh t\u0103ng tr\u01b0\u1edfng c\u1ee7a n\u00f3. Lo\u1ea1i d\u1ea7u n\u00e0y c\u00f3 m\u1ed9t h\u00f3a ch\u1ea5t r\u1ea5t ph\u1ee9c t\u1ea1p. Trong nh\u1eefng \u0111i\u1ec1u ki\u1ec7n n\u00e0o \u0111\u00f3 b\u00ecnh ch\u1ee9a ch\u1ea5t li\u1ec7u r\u1ea5t ph\u1ee9c t\u1ea1p n\u00e0y b\u1ec3 ra, d\u1ea7u b\u1ecb ph\u00e2n t\u00e1ch ra v\u00e0 bi\u1ebfn th\u00e0nh h\u01a1i lan t\u1ecfa ra r\u1ea5t l\u1eb9. Khi qu\u00e1 tr\u00ecnh n\u00e0y di\u1ec5n ra, ta ng\u1eedi th\u1ea5y m\u00f9i. C\u1ea7n n\u00f3i r\u00f5: m\u00f9i c\u00f3 th\u1ec3 l\u00e0 th\u01a1m, c\u00f3 th\u1ec3 l\u00e0 h\u1eafc, th\u1eadm ch\u00ed th\u00fai nh\u01b0 m\u00f9i hoa b\u1ea3n h\u1ea1 ch\u1eb3ng h\u1ea1n.<\/p>\n\n\n\n
M\u00f9i h\u01b0\u01a1ng c\u1ee7a hoa kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o h\u00f3a ch\u1ea5t v\u00e0 s\u1ef1 ph\u1ee9c t\u1ea1p c\u1ee7a d\u1ea7u b\u1ecb b\u1ed1c h\u01a1i. B\u1edfi v\u1eady, tuy c\u00f9ng m\u1ed9t th\u1ee9 d\u1ea7u c\u1ee7a m\u1ed9t c\u00e2y, nh\u01b0ng \u1edf l\u00e1, \u1edf v\u1ecf, \u1edf r\u1ec5, \u1edf qu\u1ea3, \u1edf h\u1ea1t m\u1ed7i n\u01a1i \u0111\u1ec1u t\u1ecfa ra c\u00e1i m\u00f9i kh\u00e1c nhau. Ch\u1eb3ng h\u1ea1n, t\u1eeb hoa, l\u00e1, r\u1ec5, th\u1eadm ch\u00ed h\u1ea1t cam, ta c\u00f3 th\u1ec3 chi\u1ebft ra \u0111\u01b0\u1ee3c c\u00f9ng m\u1ed9t th\u1ee9 d\u1ea7u nh\u01b0ng m\u00f9i hoa cam th\u00ec l\u1ea1i ho\u00e0n to\u00e0n kh\u00e1c h\u1eb3n v\u1edbi m\u00f9i v\u1ecf cam.<\/p>\n\n\n\n
Th\u1ebf c\u00f2n (m\u00e0u) s\u1eafc c\u1ee7a hoa? Anthocyanin l\u00e0 t\u1eeb \u0111\u1ec3 ch\u1ec9 th\u1ecb ch\u1ea5t ph\u1ee5 li\u1ec7u khi\u1ebfn cho hoa c\u00f3 m\u00e0u \u0111\u1ecf, xanh, t\u00edm\u2026 C\u00e1c ph\u1ee5 li\u1ec7u n\u00e0y tan trong d\u1ecbch t\u1ebf b\u00e0o hoa. Nh\u1eefng m\u00e0u kh\u00e1c nh\u01b0 v\u00e0ng, l\u1ee5c th\u00ec l\u1ea1i do c\u00e1c ph\u1ee5 li\u1ec7u kh\u00e1c nh\u01b0 di\u1ec7p l\u1ee5c t\u1ed1, caroten\u2026 v\u00e0 kh\u00f4ng c\u00f3 h\u00f3a ch\u1ea5t n\u00e0o li\u00ean k\u1ebft gi\u1eefa ch\u00fang. V\u1eady m\u00e0u s\u1eafc c\u1ee7a hoa c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c quy v\u00e0o hai y\u1ebfu t\u1ed1 c\u01a1 b\u1ea3n l\u00e0 Anthocyanin v\u00e0 plastids. M\u1ed7i nh\u00f3m l\u1ea1i t\u1ea1o ra m\u1ed9t v\u00e0i lo\u1ea1i m\u00e0u kh\u00e1c nhau.<\/p>\n","protected":false},"excerpt":{"rendered":"
T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 1 – Arkady Leokum C\u00f3 \u0111i\u1ec1u k\u1ef3 c\u1ee5c l\u00e0 ta th\u01b0\u1eddng nh\u00ecn c\u00e2y v\u00e0 ng\u1eafm ngh\u00eda, chi\u00eam ng\u01b0\u1ee1ng hoa c\u1ee7a n\u00f3 nh\u01b0ng ta l\u1ea1i ch\u1eb3ng th\u1eadt s\u1ef1 xem x\u00e9t cho k\u1ef9 hoa bao gi\u1edd. N\u1ebfu h\u1ecfi b\u1ea1n: \u201cHoa l\u00e0 g\u00ec?\u201d, ch\u1eafc b\u1ea1n s\u1ebd […]<\/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":[15],"tags":[],"class_list":["post-13569","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/13569","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=13569"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/13569\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=13569"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=13569"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=13569"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}