: muaj cov anthers tawm thiab pom ntawm caj pas ntawm corolla thrum-eyed paj ntawm ntau yam primulas - piv tus pin-eyed.
Yuav ua li cas rau kab ntawm lub cev yuav khaws paj ntoos nyob rau hauv ib tug thrum-eyed primrose?
Ib kab mus saib paj paj thawj zaug sau paj ntoos los ntawm qis dua anthers ntawm nruab nrab ntawm nws cov proboscis, uas nws mam li hloov mus rau stigma hauv cov nroj tsuag thrum-eyed, uas yog positioned qis hauv lub paj raj. Nws yog ib qho kev hloov pauv zoo uas ua kom ntseeg tau tias primroses yuav ua tiav hla-pollinated.
Dab tsi yog qhov zoo ntawm qhov muaj qhov sib txawv ntawm anthers thiab stigmas hauv Primrose?
Ob hom paj muaj cov nectar nyob hauv qab ntawm lub paj raj kom nyiam cov kab los kho kom pollination ntawm paj. Darwin xav tias kev sib koom ua ke ntawm anthers thiab stigma nyob rau hauv ob hom paj yuav txhim ntoo khaub lig fertilization.
3 hom paj ntoos yog dab tsi?
Cross-Pollination
- Zoophilous paj– Hauv hom pollination no, cov kab mob pollinating yog tsiaj xws li tib neeg, puav, noog thiab lwm yam …
- Anemophilous paj - Cov paj no yog pollinated los ntawm lub koom haum ntawm cua. …
- Entomophilic paj– Cov paj no tau pollinated los ntawm kab.
Xenogamy lub ntsiab lus yog dab tsi?
: fertilization by cross-pollination tshwj xeeb: cross-pollination ntawm paj ntawm cov nroj tsuag sib txawv - piv geitonogamy.
