Kusiyana chii muchangosangana pollination: zvinhu uye maitiro zvaidiwa pezvakaitwa

Pollination uye muchangosangana ndivo pezvakaitwa anokosha kuti anopa rokubereka kubereka mbeu zvinomera. Chii pakusangana Kusiyana pollination ichakurukurwa zvishoma munyaya ino. basa ravo zvakasikwa kunokosha chaizvo. Saka, nemhaka vose chaunofarira michero vari aumba. Saka ngatitangei kubata pamwe chete.

Musiyano wekusangana pamusoro pollination zvipenyu achapindura

azvaiitwa Vose kuitika chete vamiririri mumadhipatimendi ose gymnosperms uye angiosperms. Kuti vaite izvi, vane anokosha nhengo kurara kubereka. In gymnosperms, zvakawanda zvacho Conifers, sezvo ivo vari mukono nehadzi pasikweya. Havazivi kuumba maruva, kusafanana angiosperms, iyo nenzvimbo hukuru nzvimbo panyika. The chikuru zvikamu maruva avo vari stamen uye pistil pakupa rokubereka kubereka kwacho. Chii pakusangana Kusiyana pollination? Kuti tipindure mubvunzo uyu, ngatitangei takurukura hunhu azvaiitwa.

Chii pollination

Pollination mu maruva miti ndiyo muitiro tama mukume kubva anther kusvika rusarura pakati pistil Stamens. Sei izvi zvakafanira kuitira kuti paiva kwemapazi gametes? All nyaya iri sechivako ruva. Male pabonde masero ose dzakakwirira zvinomera dzinonzi dzisingaoneki. Ivo wakaiswa, vari vazhinji uye dziri mune anther Stamens vasiyana shinda. Female gamete akadana zai. Zviri kuchisazitasingwi iri munzvimbo dzakaderera chikamu akatambanudzirwa nomutswi - ovary. Chii pakusangana Kusiyana pollination? Kana yechipiri, mukono nehadzi gametes hazvina kubatana. Pollination kunosanganisira kuchinjwa dzisingaoneki pamusoro pistil, apo Vachabva vatanga nzira yavo zai. Zvinogona kuitika nenzira dzakawanda.

mhando pollination

Kuti tipindure mubvunzo chii musiyano wekusangana ne dusting, zvakakodzera kufunga uye ayo mhando. Pane nzira huru mbiri. Uyu dzinongoitika uye chakagadzirwa pollination. Wokutanga inosanganisira kuchinjwa mukume nemhepo, mvura, kana kuti vamiririri mhuka umambo. Zvinofungidzirwa kuti pollination zvibereko chete tumbuyu: nyuchi, wasps, bumblebees, kungozvifunga uye nevamwe. Asi izvi zviri kuitwa uye duku neshiri - sunbirds uye zviremwaremwa, uye mhuka duku, dzakadai couscous. Entomophilous zvinomera maruva makuru pamwe Corolla nemavara uye ziso munuhwi. Dzimwe nguva vanenge vakabatana vari Inflorescence kuti zvirinani zvinokwezva. Ndivo zvakaoma kurega. Wind-mukume zvirimwa vari nguva diki uye asazivikanwa. Chakagadzirwa nzira munhu anoita kuti vawane zvibereko pakukohwa.

Chii muchangosangana

Muchangosangana - ndiwo muitiro kubatanidzwa nomumwe zvepabonde masero. Chii pakusangana Kusiyana pollination? Chokutanga, wokutanga muitiro uye mugumisiro hazvibviri pasina yechipiri. Panguva pollination, dzisingaoneki zviri kunongedza. Asi kuti tisvike zai, unofanira utachiona chubhu kukura. Inokura, uye pamwe pacho, kutamira kune chinangwa chake uye dzisingaoneki.

Features muchangosangana miviri maruva miti

The ovaries ndiwo makamuri maviri pistil. Ndiwo zai uye nechepakati utachiona. Saka, muna muitiro wekusangana uye zvinobatanidzwa munhurume utachiona masero maviri. Kwemapazi zai ne dzisingaoneki ramangwana wokutanga chirimwa mudumbu aumba. Rine ose anodiwa mitezo: mudzi, maruva, mashizha, dzinde. Somugumisiro dzisingaoneki muchangosangana nechepakati utachiona sero wechipiri ane endosperm. kuchengeterwa ichi muviri. Endosperm vane utachiona dzinoumba mbeu, iri maruva miti mukati muchero, uye gymnosperms - akazaruka pazviyero pasikweya. Pano Ndiro musiyano pollination muchangosangana. Ndiyo mugumisiro. Panguva pollination, muchangosangana kunoitika. Gametes hazvina kubatana, kutorambidza zvavo zvokuimba kufamba. Pollination nguva dzose kunoitika wokutanga uye zvinoda kupindira nechitarisiko ravarwi mhuka, mhepo, mvura, tumbuyu. Mugumisiro wekusangana muri mbeu uye zvibereko. Zvinotora nzvimbo pasina kwokunze kupindira.

Ndizvo musiyano pakati pollination muchangosangana. kutevedzana uku pezvakaitwa kuti zvinokonzera pabonde kubereka uye mbeu zvinomera.