Imbali isakhiwo: incazelo jikelele

Imbali - isitho kuhle eziyinkimbinkimbi futhi abazalwa eziyingqayizivele angiosperms. umsebenzi Its main - kuyinto ukuzala umzimba. Naphezu kweqiniso lokuthi isakhiwo imbali has inezici ezicishe zifane, ngoba iqembu izitshalo ngamunye kubhekwa ngamunye kanye ejwayelekile uhlamvu taxonomic.

Imbali, imisebenzi kanye izici. Ngaphambi kokucabangela isakhiwo imbali, kubalulekile ukuthola ukuthi yini iyona isitho okuzala. Imbali - Kayisilutho ngaphandle Ukuphunyuka mfushane, amacembe, pistils, stamens, sepals futhi ilungiswe amahlamvu.

Izimbali kwezinhlobo ezahlukene yezimila ezihlukahlukene izici. Ngokwesibonelo, kuye ngokuthi indlela impova, bangase babe imibalabala eyahlukahlukene kanye nokuma, futhi izingxenye ezengeziwe, ezifana nectaries. I Kungashiwo okufanayo mayelana nobukhulu bazo - komncane kunabo imbali duckweed has a ububanzi 1 mm, imbali kwezinye isitshalo nezokusigcoba ifinyelela imitha ububanzi.

Isakhiwo jikelele imbali. isakhiwo saso singasetshenziswa yizinqamu ezintathu eziyinhloko:

• Isiqu ingxenye - siqukethe pedicel kanye ayesisebenzisa.
• Ishidi we - lapha zihlanganisa amacembe kanye sepals.
• Okuzala ingxenye - pistils kanye stamens.

Imbali ibekwe enhlonhlweni ihlumela, kokubili main futhi ohlangothini. Isiqu ukubaleka kahle phakathi peduncle (izimbali sessile le ngxenye noma mfushane kakhulu noma engekho). Lolo hide luqala ngo phezulu ukwakha ayesisebenzisa okuthiwa - ukuthi elikulo nazo zonke ezinye izingxenye imbali. Kungenzeka convex, phakathi, side noma flat - kuba njalo izinhlamvu ezibalulekile taxonomic.

Imbali: isakhiwo perianth. Perianth ngokuthi ingxenye oyinyumba imbali. umsebenzi Its main - kuyisivikelo zezitho okuzala. Ngaphezu kwalokho, ukuma nokwakheka indlela incike perianth impova izitshalo.

Perianth uhlukaniswe:

• Simple - kukushiya zonke elilodwa (isibonelo, uma sicabanga nokwakheka imbali Tulip, singabona ukuthi unesikhathi perianth elula).
• Dual - izakhi perianth yakha inkomishi futhi phehla.

Calyx siqukethe sepals ahlukene - ngezinye izikhathi ingaba umthombo khulula noma coalesce ndawonye.

Beater esifanayo iqoqo amacembe. Njengomthetho, zingabantu ingxenye ebonakalayo kakhulu imbali. Zingase coalesce ndawonye noma ahlale amahhala. Abanye abameleli umbuso isitshalo, ezifana imidumba noma orchid, beaters zinezikhathi isakhiwo kunalokho yasekuqaleni. La mahlamvu, kungenziwa ezikhethekile epidermal amaseli ukukhiqiza amafutha abalulekile - yilokhu wadala amakha.

Imisebenzi esemqoka inkundla - isivikelo okushisa aphakeme ngosuku, ukuvikelwa hypothermia ebusuku, ilanga ukuvikelwa, kanye edonsa izinambuzane impova.

Imbali isakhiwo: okuzala ingxenye. ingxenye okuzala umelwe androecium imbali (aggregate stamen) kanye gynoecium (aggregate pestles).

I stamens ayindawo wezemfundo kanye nokuvuthwa impova. Inombolo yabo ingase ihluke kuye ukuba namakhulu amaningana abantu. Lezi zici kungase imbali coalesce nomunye, noma ukuthi ahlale amahhala. Stamen ayesisebenzisa exhunywe stamens ngentambo ezacile, etholakala zibhonge phezulu. Futhi, anther ihlukaniswe halves ezimbili, ngamunye ephethe Slots ezimbili, okuyinto eziqukethwe futhi microspores.

Pestle - omunye izitho avelele imbali. Siqukethe carpels tho ndawonye. Pistil esibelethweni zingahlukaniswa zibe (ngezansi okuyingxenye, equkethe iqanda), ikholomu kanye nenhlamba (ingxenye othola impova).

Isakhiwo imbali kungaba okuhluke ngokuphelele. Kodwa-ke Kuyaphawuleka ukuthi inani, ukuma khona nezinye izinto ezincane isakhiwo ingxenye ngayinye izinhlamvu empeleni ebalulekile taxonomic asetshenziswe taxonomy yesimanje.