A yau, yawancin tsire-tsire waɗanda ke zaune a duniyarmu suna ba da furanni, kuma suna iya yin hakan sau da yawa a rayuwarsu. Shin kiran polycarpic shuke-shuke, kuma akwai… ko'ina cikin duniya, banda a yankuna masu bushewa da / ko mafi sanyi.
Amma mun san abin da suke daidai? Don ƙarin koyo game da irin wannan shuka, za mu bayyana duk abin da kuke buƙatar sani game da su.
Halaye na shuke-shuke polycarpic
Polycarpic tsire-tsire ne na masarautar Angiosperms. Waɗannan nau'ikan tsire-tsire sun bambanta da Gymnosperms sama da duka ta hanyar haɓakar su: don yin haka, samar da furanni tare da zinare masu tsari ko karkace na sepals (suna narkar da sauran furannin furannin), petals (su ne ɓangarorin cikin layin, ba su da ƙwazo kuma suna aiki don jan hankalin masu jefa ƙuri'a), stamens (gabobin da ke dauke da cutar pollen) da carpels (ganyen da aka gyara wanda yake kare gabobin mata, kamar su ƙwai). Menene ƙari, kare zuriya a cikin ‘ya’yan itacen har sai ya cika girma.
Wasu shuke-shuke suna samar da furanni a kusan kusan tsawon shekara, kamar yadda lamarin yake ya tashi daji ko madarar ruwa, amma akwai wasu da zasuyi hakan ne kawai a wani lokacin, kamar su magnolias (bazara), itacen Ruwan sama na zinare ko Laburnum (bazara), ko lithops ko duwatsu masu rai (kaka) misali.
Shin akwai shuke-shuke da ke fure sau ɗaya kawai a rayuwa?
Caryota ciwon
Kodayake yana da wuya a yi imani, a. Akwai tsirrai da yawa wadanda sau daya kawai suke yin furanni a rayuwarsu, kuma ba ina magana ne kawai ba kowace shekara. Misali, akwai dabinai da yawa da suke girma tsawon shekaru kuma, bayan shekaru 20, 30 ko 40 suna yin ɗimbin furanni waɗanda zasu ba da givea fruitsa da yawa tare da seedsa seedsa. Irin wannan tsire-tsire an san su da shuke-shuke monocarpic, kuma suna da matukar daukar hankali.
Sauran misalan sune agave, karamin, ko Kalanchoe.
Me kuka gani game da wannan batun?