Izithelo: Ukwahlukaniswa izithelo kanye nezici isakhiwo sabo

Kuzo zonke izinhlaka izitshalo isithelo ngokufanelekile anesikhundla ehola sibesibumbene. Ukuze le mpikiswano, kufanele siqonde kuqala ukuthi yini izici isakhiwo nemigomo yeNhlangano izithelo ngezigaba esekelwe nemifino. Ake sihlole kubo ngokuningiliziwe.

Isakhiwo izithelo

Isithelo imbali ukushintshwa. Ngenxa yalokho, i-fusion lwegciwane amaseli (gametes) kwakheka imbewu. Ngemva kwalokho imeenno ngeke zisenza sibe isitshalo eziphilayo esizayo. Kodwa ukuhluma yayo kanye nasekuthuthukisweni kwezwekazi lase izakhi ezidingekayo kanye nokuvikelwa. Lomsebenzi ezenziwa pericarp. Siqukethe izingqimba ezintathu: elingaphandle, maphakathi kanye kwangaphakathi. Ngamunye wabo has izici zayo siqu kuye ngohlobo izithelo.

Izithelo: Ukwahlukaniswa izithelo

Imileyo ngezigaba, kukhona kahle elula: acabangele inani imbewu kanye izingqimba ethile pericarp.

Ngokusho ngowokuqala sici ukukhululwa kanye polyspermous PIP izithelo. Ngokwesibonelo, iplamu kanye eliphakathi kwe.

Ukwahlukanisa isithelo isici sesibili futhi kuthinta amaqembu abantu amabili: namanzi futhi yomile.

izithelo namanzi

Lezi izingxenye isitshalo bathole isicelo okubanzi okwenziwa abantu kwezomnotho kusukela, ifa izimfanelo ezibalulekile ukudla futhi Ngalokhu emgodini amavithamini namaminerali.

Quince, lihhabhula, pere - iyisithelo emangalisayo. Ukwahlukanisa izithelo icacisa ukuthi zonke zibe isakhiwo esifanayo (nabo zihlanganisa mountain ash). -kozhisty yangaphandle ungqimba naphakathi - esinamanzi, futhi ongaphakathi eqinile nakho ngeke kusize emelelwa filmy amakhamera. A uhlobo izithelo "apula".

Drupe lethiwa ekwakhekeni ungqimba kwangaphakathi, emelelwa ithambo. Peach, iplamu, iplamu, cherry kanye nabanye abameleli le Rosaceae umndeni ube nezithelo.

Ukwahlukaniswa inquma izithelo basonta izithelo utamatisi. Uma uthi nhlá, lutho. Nokho, masikhumbule oyiyo. izingqimba obunesikhumba yangaphandle futhi phakathi namanzi kunothile imbewu encane ... gooseberries Ngokufanayo ahlelwe, currants namagilebhisi.

Ngokuvamile, uyakwazi ukuzwa inkulumo ethi "berry-raspberry". Ngamagama yezinto eziphilayo, akulungile ngokuphelele. Empeleni, kuba drupe eziyinkimbinkimbi, ehlanganisa inqwaba fruitlets encane.

Kodwa Persimmon futhi banana ku imininingwane yokulandelana kwayo ngokohlu kukhona amajikijolo yangempela.

Watermelon, kahle, ngubani akayithandi izithelo zaso na? Ukwahlukaniswa lesi sithelo isitshalo elixutshwe. Abanye abantu bakholelwa ukuthi liphinde berry. Nokho, kanye zucchini, ithanga ikhabe ikhabe isithelo ikhabe. Olwelwesini izitshalo ezifana wenziwe phakathi nesikhathi esifushane kanye nephethini isici, ngokuvamile egqamile.

izitshalo ezisawolintshi kungaba ozibongayo inyama namanzi. It kungatholakala lemon, orange, Mandarin. Isici esifanayo isithelo sitrobheli, okuyinto has a lot of fruitlets ezomile ngokujulile egxilile esinamanzi ayesisebenzisa proliferating.

Uma izithelo tho nomunye inqubo ukuthuthukiswa, neziqu kwakhiwa like uphayinaphu, Uphinde agibele noma mulberries.

izithelo ezomile

Ake sixoxe ngalokho yini izithelo omisiwe. Ukwahlukanisa izithelo kuhilela division ezengeziwe leqembu ku okuya phansi futhi indehiscent. Walnut, igobolondo kanzima futhi odrevesnevevshaya esivikela imbewu wembula kuphela ngomzamo omkhulu. Similar kwezinye futhi indehiscent achene ngamunye futhi caryopsis. Kuphela pericarp lokuqala akuyona tho ngembewu, njengomuntu sunflower, futhi owesibili okuphambene nalokho. Ubufakazi lokhu kukhona imbewu okusanhlamvu: rye, ukolweni, ummbila, ibhali, uphaphe utshani, Kentucky bluegrass.

Ngokuphambene, soy ubhontshisi bhontshisi ngokwalo lembula emphethweni walo uma sesivuthiwe. Ichaza ngayo kanye Lomkhuba efanayo kwenzeka pod. Imbewu yakhe ayiwona ezivalweni emdulini maphakathi izithelo. Dry izithelo iconsi, silicle, okuyinto ingatholakala isikhwama sikamalusi, ezifanayo isakhiwo, kodwa ezincane.

wavula kalula futhi ebhokisini. Futhi lokhu kungenzeka ngezindlela eziningana. Thina poppy imbewu fall out ngokusebenzisa amazinyo, okuyizinto phezulu izithelo. Kodwa henbane ezinesihlungu kuvula isivalo.

izithelo Okwehliswayo abe lithathelwe ephelele imbewu zisakaza ngokwemvelo, okuyinto enomthelela Izindawo zezinto eziphilayo on ensimini.

Ukwahlukanisa izithelo: ithebula

Manje ngoba sewuyazi ukuthi yiziphi izinzuzo.