MapangidweSekondale ndi sukulu

Stamen ndi pistil wa maluwa

Maluwa amatchedwa kusinthidwa mbewu mphukira, anafuna kuswana mbewu. Mosiyana ndi nthambi yachibadwa (mphukira), akukula kuchokera Mphukira maluwa. Tsinde la maluwa ndi pedicel ndi cholandirira. Corolla, calyx, stamens ndi NYENJE kusinthidwa masamba anapanga. Kuti mudziwe chifukwa chake tiyenera chomera matupi onse ayenera kufufuza mwatsatanetsatane dongosolo lililonse maluwa. Choncho, pa malo ake ndi pistil, zomwe, ngakhale dzina lake, ndi "mkazi" chiwalo ubereki. Childs, kuzungulira iwo ndi stamen ambiri, ndiwo "mwamuna" chiwalo ubereki. Mu stamen aliyense maluwa ndi pistil - mbali yaikulu ya izo. Kwa iwo adzakhala kenako kupangidwa zipatso chomera amene mbewu ndi njira yodalirika kubalana.

Stamen ndi pistil kumathandiza kwambiri pa moyo wa zomera maluwa. Male kugonana chiwalo chilichonse cha maluwa, ndilo gulu stamens onse amatchedwa "androecium". Aliyense ali ndi "Staminate ulusi" 4 "ya mungu sac," akaidi "duster". Amakhala amachepetsa awiri, omwe nawonso, pali cavities awiri (zipinda kapena mwake). Iwo anapanga zonse mungu kudziwika. Malinga filaments staminal madzi ndi zakudya unachitikira. Female kugonana limba duwa lake ndi "gynoecium", chimenenso amatchedwa "munsi". Amakhala ndi "mzati", "mazira" ndi "manyazi". Pa "manyazi" ndipo wayamba wakucha mungu pa stamens lapansi. "Mzati" amagwira ntchito kuthandiza, ndi za "n'kuwasanganiza", munali ovules (chimodzi kapena zingapo) kukula mbewu pa umuna. The ovules ndi mwana wosabadwayo sacs omwe akutukuka mofulumira ndi zomera mawonekedwe zipatso. Pistil ndi stamen, chiwembu n'cholinga wathunthu popanda "nectary", emitting ndi timadzi tokoma wokoma, nthawi zambiri mungu ndi tizilombo, flitting ku maluwa kwa maluwa. Perianth imakhala corolla ndi calyx. Pistil ndi stamen atazunguliridwa perianth.

Pali zosiyanasiyana mitundu ya maluwa, amene amayamba ndi pamaso pa anthu kapena ziwalo zina. Choncho, zomera limene maluwa ndi pistil ndi stamens, ndi "bisexual". Ngati pali stamens yekha kapena NYENJE kokha - mmera amatchedwa "dioecious". "Monoecious" ankanena za anthu a zomera, zimene anapezeka ndi maluwa ndi stamens, ndi NYENJE ndi. "Dioecious" zomera amatchedwa, ndi kokha pistillate kapena maluwa staminate yekha.

Kapangidwe ka pistil ndi stamens anapanga zaka mamiliyoni ambiri. Maluwa ndi chiwalo ubereki wabwino wa angiosperms. Stamen ndi pistil kupereka mbewu mapangidwe zipatso (mbewu). zipatso pamaoneka ndondomeko maphatikizidwe wa carpel. Iye ndi chosavuta (nandolo, nthuza yamatcheri) kapena zovuta (ongokhala NYENJE angapo zinaphatikizidwa - carnation, kakombo, cornflower). Anthu ambiri a zomera ndi chimanga chosakhwima (achikalekale) NYENJE. Species zosiyanasiyana mu maonekedwe ndi kapangidwe ka maluwa chifukwa cha akuwuka mu njira ya kusanduka yaitali kusiyana njira zawo za kubereketsa zomera.

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