Daukar kwayar fure
 Daukar kwayar fure | |
|---|---|
biological process (en)  da ilmi | |
 | |
| Bayanai | |
| Ƙaramin ɓangare na |
reproductive process (en) |
| Bangare na |
multi-multicellular organism process (en) |
Pollination shine canja wurin pollen daga wani shuka zuwa Stigma na shuka, daga baya yana ba da damar taki da samar da tsaba. Masu shuka shuke-shuke na iya zama dabbobi kamar kwari, misali ƙudan zuma, kwari ko malam buɗe ido; tsuntsaye, da jemagu; ruwa; iska; har ma da tsire-tsire da kansu. Dabbobi masu shuka suna tafiya daga shuka zuwa shuka dauke da pollen a jikin su a cikin muhimmiyar hulɗa wacce ke ba da damar canja wurin kayan kwayar halitta masu mahimmanci ga tsarin haihuwa na yawancin shuke-shuke masu fure.[1] Tsayar da kansa yana faruwa a cikin fure mai rufewa. Pollination sau da yawa yana faruwa a cikin jinsin. Lokacin da pollination ke faruwa tsakanin jinsuna, yana iya samar da 'ya'yan hybrid a cikin yanayi da kuma aikin kiwo na shuka.
A cikin angiosperms, bayan hatsi na pollen (gametophyte) ya sauka a kan Stigma, yana tsiro kuma yana haɓaka bututun pollen wanda ke girma a cikin salon har sai ya kai ga Ovary. gametes dinsa guda biyu suna tafiya a cikin bututun zuwa inda ake gudanar da gametophyte (s) dauke da gametes mata a cikin carpel. Bayan shigar da kwai ta hanyar micropyle, ɗayan namiji ya haɗu da Jikin polar don samar da ƙwayoyin endosperm, yayin da ɗayan ya haɗu tare da kwai don samar da tayin.[2] [3] Saboda haka kalmar: "shinkafa biyu". Wannan tsari zai haifar da samar da iri, wanda aka yi da ƙwayoyin cuta masu gina jiki da tayin
A cikin gymnosperms, kwayar ba ta ƙunshe a cikin carpel ba, amma an fallasa ta a saman wani kayan tallafi na sadaukarwa, kamar sikelin ƙuƙwalwa, don haka shiga cikin ƙwayoyin carpel ba dole ba ne. Bayanai game da tsari sun bambanta bisa ga rarrabuwa gymnosperms da ake tambaya. Ana samun manyan hanyoyi guda biyu na takin mai a cikin gymnosperms: cycads da Ginkgo suna da maniyyi mai motsi wanda ke iyo kai tsaye zuwa kwai a cikin kwai, yayin da conifers da gnetophytes suna da maniyi wanda ba zai iya iyo ba amma ana isar da su zuwa kwai tare da bututun pollen.