Cross-pollination tsis tuaj yeem tshwm sim hauv cleistogamous paj vim lawv tsis qhib. Li no, tsuas yog tus kheej pollination yog ua tau nyob rau hauv cov paj.
Yuav ua li cas pollination tshwm sim hauv paj cleistogamous?
Cleistogamy yog hom tsis siv neeg pollination ntawm qee cov nroj tsuag uas tuaj yeem nthuav tawm los ntawm kev siv cov paj uas tsis qhib, nws tus kheej-pollinating paj. Tshwj xeeb tshaj yog paub zoo nyob rau hauv cov txiv laum huab xeeb, peas, thiab pansy tus cwj pwm no feem ntau nthuav dav hauv tsev neeg nyom. Txawm li cas los xij, qhov loj tshaj plaws ntawm cov nroj tsuag cleistogamous yog Viola.
Puas Cleistogamy txhawb nqa cov paj ntoo khaub lig?
Thaum pollination thiab fertilization tshwm sim hauv lub paj tsis qhib, nws yog hu ua cleistogamy. Nws ua kom nws tus kheej pollination thiab tiv thaiv tus ntoo khaub lig pollination.
Puas hla pollination tshwm sim nyob rau hauv paj unisexual?
Kev xaiv A: Cov paj uas tsis muaj menyuam yog cov paj uas muaj cov txiv neej cov kabmob (anther) lossis poj niam cov kabmob (pistil) nkaus xwb. Lawv kuj hu ua paj tsis tiav. Lawv tsuas yog rov tsim dua los ntawm kev sib hloov pollination xws li papaya, watermelon.
Pob paj twg hla pollination tshwm sim?
Cross-pollination muaj nyob rau hauv ob leeg angiosperms (flowering nroj tsuag) thiab gymnosperms (cone-bearing nroj tsuag) thiab pab txhawb kev hla-fertilization thiab outbreeding.
