2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov noob imbibes dej thiab lub testa tawg nyob ze ntawm lub caruncle thiab radicle loj hlob tuaj. Tom qab no hypocotyl loj hlob vim hais tias ob papery cotyledons uas nyob ib puag ncig los ntawm endosperm yog rub tawm ntawm cov av. Cotyledons tawm los ntawm cov endosperm thaum nws tau noj.
Nyob rau hauv cov nroj tsuag thaum lub sij hawm germination cotyledons tawm hauv av nyob rau hauv?
1. Epigeal germination: Noob germination nyob rau hauv dicots nyob rau hauv uas cov cotyledons tuaj saum av nto. Hauv hom no, lub hypocotyl elongates thiab tsa cov cotyledons saum npoo av, nws yog hu ua epigeous lossis epigeal germination.
Dab tsi tawm hauv av thaum noob taum germinates?
Nplooj Loj
Tom qab cov noob germinates thiab cov cag loj hlob, cov taum cog pib thawb tawm ib lub qia. Raws li cov qia tawm hauv av, ob me nplooj tawm.
Thaum cov cotyledons nyob hauv qab av hu ua germination?
(e) yog cov cotyledons nyob hauv av, ces cov noob zoo li no hu ua: Hypogea.
5 kauj ruam ntawm kev cog qoob loo yog dab tsi?
5 qhov kev hloov pauv lossis cov kauj ruam uas tshwm sim thaum lub sijhawm cov noob germination yog: (1) Imbibition (2) Ua pa (3) Teeb pom kev zoo ntawm cov noob germination (4) Kev tuav tseg thaum lub sij hawm noob germination thiab lub luag hauj lwm ntawm Growth Regulators thiab (5) Kev loj hlob ntawm Embryo Axis rau hauv Seedling.
Pom zoo:
Puas cotyledons muaj noob?
Cotyledons yog tsim thaum lub sij hawm embryogenesis, nrog rau cov hauv paus hniav thiab tua meristems, thiab yog li ntawd muaj nyob rau hauv lub noobua ntej germination. Puas yog cov noob cotyledons? Cotyledons yog thawj nplooj uas tsim los ntawm cov nroj tsuag.
Nyob rau hauv hypogeal noob germination tus qauv?
Hypogeal germination txhais tau tias cotyledons nyob hauv av. Lub epicotyl (ib feem ntawm qia saum lub cotyledon) loj hlob, thaum lub hypocotyl (ib feem ntawm lub qia hauv qab lub cotyledon) tseem zoo ib yam nyob rau hauv ntev. … Nquag, cov cotyledon yog nqaij, thiab muaj ntau cov as-ham uas siv rau germination.
Nyob rau hauv epigeal germination dab tsi elongates sai?
Yog vim li cas: Nyob rau hauv epigeal germination, after radicle hypocotyl hlob sai. Dab tsi elongates hauv epigeal germination? Epigeal germination txhais tau hais tias cov cotyledons raug thawb saum av. Lub hypocotyl elongates thaum lub sijhawm epicotyl tseem nyob ntev.
Thaum twg tsis siv kev tawm tsam hauv kev tawm tswv yim?
Kev sib cav tsis yog ib qho cuab yeej zoo hauv thawj theem ntawm kev tawm tswv yim thaum lub ntsiab lus kho tsis muaj nyob hauv tus neeg siv khoom tuaj yeem nkag siab lub ntsiab lus thiab lub hom phiaj ntawm kev tawm tsam. Nws tseem yog qhov tseem ceeb uas tus neeg siv khoom tau npaj los daws cov khoom tshwj xeeb uas tau ntsib.
Yuav ua li cas ntub cov noob thaum hmo ntuj pab kom germination?
Ib hmos soak speeds the germination of all kinds of seed. Tsis txhob so kom ntev dua 24 teev kom tsis txhob rotting cov noob. Puas soob noob pab germination? Nws pom zoo tias koj tsuas yog tsau cov noob feem ntau rau 12 mus rau 24 teev thiab tsis pub tshaj 48 teev.
