ABA lossis abscisic acid yog cov tshuaj cog qoob loo uas tswj lub plab qhib thiab tiv thaiv cov nroj tsuag ntawm lub cev qhuav dej. The gibberellins induce starch hydrolysis uas khaws cia rau hauv cov noob. Qhov no ua rau kev tawg ntawm cov zaub mov thiab nws txoj kev txav mus los.
Yuav khaws cov zaub mov rau qhov twg?
Thaum cov noob pib loj hlob, ib feem ntawm lub embryo dhau los ua cov nroj tsuag thaum lwm qhov los ua hauv paus ntawm cov nroj tsuag. Cov zaub mov rau cov nroj tsuag yog khaws cia rau hauv the cotyledons. Qee cov noob thaum sib cais sib cais ua ob halves. Cov noob no muaj ob lub cotyledons thiab yog li hu ua dicotyledons.
Phytohormone twg pab hauv cov metabolism hauv cov zaub mov khaws cia thaum lub sijhawm cov noob germination?
Gibberellin induces aleurone cells los tso enzyme kom tawg cov zaub mov hauv cov noob. Cytokinines txhawb nqa cov khoom noj khoom haus, uas pab kom qeeb ntawm nplooj senescence.
Yuav ua li cas txhawb cov noob germination?
Bioactive gibberellins (GAs) txhawb cov noob germination hauv ntau hom nroj tsuag. Hauv dicots, xws li txiv lws suav thiab Arabidopsis, de novo GA biosynthesis tom qab noob imbibition yog qhov tseem ceeb rau kev cog qoob loo. Lub teeb yog ib qho tseem ceeb ib puag ncig cue txiav txim noob germination nyob rau hauv ib co hom.
Thaum noob germinates nws tau txais nws cov zaub mov?
[Plant Life Cycle Phases - Theem Ib (Coj Seeds)] Thaum ibnoob pib loj hlob, peb hais tias nws germinates. Lub cotyledons khaws zaub mov rau tus menyuam cog hauv cov noob. Thaum cov noob pib germinate, thawj qhov loj hlob yog lub hauv paus loj.
