Duk shuke-shuke a cikin yanayi suna da nasu bambancin. Dangane da rarrabuwa tsakanin maza da mata, ana rarraba nau'ikan fure iri biyu zuwa ƙungiyoyi masu zuwa:
- sahibanci;
- dioecious;
- karafarin
Dioecious tsire-tsire sune waɗanda suke da furannin mata akan wasu mutane kuma furannin maza akan wasu. Yin zabensu yana faruwa ne ta hanyar giciye. Don haka 'ya'yan itacen dioecious suna ɗaure idan an canza furen furen mutane daga furannin namiji zuwa bishiyoyi da furannin mata. Wannan tsari ba zai yiwu ba tare da kudan zuma, wanda karin zaben ya dogara da shi. Rashin dacewar irin wannan na'urar kamar dioeciousness shine cewa tsaba ba su bayyana a kashi 50% na shuke-shuke na wani nau'in. A dabi'a, irin waɗannan nau'in ba'a same su da fiye da 6% ba. Waɗannan sun haɗa da tsire-tsire masu zuwa:
Willow
Zobo
Rariya
Laurel
Nettle
Poplar
Hemp
Aspen
Bambanci tsakanin maza da mata
Rarrabe tsakanin maza da mata na jinsunan dioecious koyaushe yana da wahala, waɗanda suka yi shuka furanni, bishiyoyi da sauran albarkatu dole ne su koyi yadda za su yanke hukuncin jima'i. Furannin maza suna da stamens cike da fure, kuma ƙyamar da suke da ita ba ta ci gaba ba. Furen mata kusan koyaushe basu da ƙarfi.
Idan bishiya ba ta bada fruita fruita a cikin lambun, to akwai yiwuwar ya kasance daga jinsunan dioecious ne. Don magance halin da ake ciki, kuna buƙatar dasa tsire-tsire na jinsi iri ɗaya a nan kusa, sannan kuma godiya ga ƙudan zuma, wanda ke taimaka wa furannin yin kwalliya, itacen zai fara ba da 'ya'ya.
Fure maza na tsire-tsire dioecious yawanci suna samar da fure mai yawa. Wannan shi ne saboda cewa mata ba koyaushe suke girma a kusa ba, wanda ke nufin cewa ya kamata a sami isassun fure don lalata shuke-shuke mata masu girma. Haske ne kuma yana iya yaduwa zuwa yankuna masu nisa ta guguwar iska.
Ta yaya ake yin dioecious pollination?
Fig shine tsire-tsire mai dioecious, kuma akan misalinsa, zamuyi la'akari da yadda ake samun ƙarancin pollin. Tana da furanni ƙanana da ban mamaki. Pollination ne saboda blastophagous wasps. Mace ta wannan nau'in tana neman furannin namiji wanda mazajen maza suke zaune. Sabili da haka, zanzaro ya tattara fure daga furannin maza kuma daga baya ya ba da furannin ɓaure mata. Don haka hadi yana faruwa a cikin wasps, kuma godiya garesu, furannin ɓaure suna lulluɓe.
Dioeciousness haɓakawa ce ta musamman ta shuke-shuke, wanda ke bayyana kanta cikin gaskiyar cewa jinsi ɗaya yana da mata da maza, amma sau da yawa yana da wuya a tantance jima'i. A irin waɗannan halaye, masu shayarwa suna ƙoƙari su haɗu da sababbin nau'ikan nau'ikan nau'ikan kadarorin don a gaba masu lambun ba su da matsala da yawan amfanin gona.
