Isakhiwo wesifunda imbali. Izimbali hermaphrodite futhi dioecious

Emvelweni, kukhona imibala eminingi ehlukene. Ezinye bhá futhi zizinhle, elinye - elula plain. Siyini isizathu? Kungenzeka yini ukuchaza kwendikimba? It kuvela ukuthi kungcono ngempela. Kodwa yini ukuchaza uhlelo? Imbali isakhiwo ezitshalweni ezahlukene zingase zishintshe kakhulu. Kodwa umehluko oyinhloko akukhona ngesimo noma ubuhle amacembe awo. kubaluleke kakhulu yilokho okungaphakathi kuye.

imbali umsebenzi

Ngakho ezingasetshenziswa izitshalo nokuzala ngokwabo, badinga Izitho zokuzala. Ukuze wenze lokhu, ezinye izinhlobo zawo ziye zafunda zikwenze ube impilo entsha evela amahlumela impande. Abanye kwavela imbali njengoba primary isitho sobulili ngokuhamba kwemvelo. Kuyinto ukuvela kanye nokuvuthwa amangqamuzana zisenza emva impova imbewu nokuvuthwa. Lomfanekiso ngaphezulu sibonisa isakhiwo uhlobo ezivamile imbali isikimu. Kungani anakho ifomu enjalo?

Kukholakala ukuthi le mbali - a esuselwe amaqabunga. Basuke ukwenza baye bathi sebeshintshe ngokuphelele yinqaba, njengoba ingashintshwa ukuze izimo zemvelo. Abanye "bafunda" ukuzithiba ngempova. Okunye ithemba emoyeni. Abanye aguqulwe ngendlela ukuheha izinambuzane ngendlela ebukeka ngayo. Futhi, ayesuka ezimbalini ezihlukahlukene befuna umpe ngokwabo ukuba baphathe impova.

Isikimu isakhiwo imbali

Kuyini isitho zokuzala? Ngokuvamile, le mbali element yokugcina legatsha eksisi eqonde ngqo phezulu noma lateral main. Kutfutfukisa kusuka efihlekile kwakhiwa ku amahlumela esifushane, futhi alinakuba amaqabunga. Indawo lapho liqala ukuphakama kusukela isiqu, ebizwa ngokuthi ayesisebenzisa. It is ukuthuthela kude ke "eshiya" eziye zabhekana baye bathi sebeshintshe ngokuphelele e inqubo ukuziphendukela kwemvelo.

Isakhiwo imbali (jikelele uhlobo wesifunda) kungenziwa bahlola ku isibonelo isithombe sokuthi ubizwa ngokufanele ngezansi. It kungabonakala ayesisebenzisa uqweqwe. Kusukela likhula perianth. indima yaso yesibili futhi ukuvikelwa izingxenye ezibalulekile ngaphezulu imbali. Perianth ungaba ocacile ku inkomishi futhi phehla. Kungaba elula unprepossessing, umbala umfaniswano. Futhi kwezinye izimo, ihlukaniswe sepals kanye amacembe eliqhakazile, izinambuzane kanye shades yabo.

Kuyini ikakhulukazi isakhiwo sangaphakathi imbali? Isikimu zokuzala izitshalo isitho hermaphrodite okubonisa khona stamen (organelles besilisa) kanye carpel (female). Futhi kukhona izingxenye eziyinhloko imbali. Ngakwelinye ezansi le pestle base letimele - esibelethweni, ovule eliqukethe ngenhla - ethwele ikholomu, phezu kwalo ithiphu - itjhubhu. Stamen siqukethe intambo mncane, esemgwaqweni zibhonge.

Hermaphrodite futhi dioecious izimbali

Siyini isisekelo sale ngezigaba? Uyini umehluko zabo? Isakhiwo wesifunda futhi izimbali hermaphrodite dioecious ahlukene organelles zokuzala. Qedela ikhithi kusikisela futhi stamens futhi pistil (ngithanda abesilisa nabesifazane). Uma Nokho, ekhiqizwa kuphela pistil, imbali kubhekwa njengabesifazane, uma kuphela stamens - iduna. Kuzo zombili lezi zimo, uma kukhulunywa ngo-izingxenye okuzala ka izitshalo kukhona dioecious.

Yini enye engingabuye isikimu isakhiwo ekhethekile imbali? Kunenye ngezigaba. Nge izimbali ngithanda abesilisa nabesifazane ibhizinisi okulula wazo wokuthutha impova senzeka ngaphandle kwezinkinga. Unesimo dioecious iyinkimbinkimbi kakhulu kunalokho. Kungase kube ezimbili Okukhethwa kukho. Olunye uhlobo izimbali ukuba isimiso kwabesifazane nabesilisa akhule ndawonye ohlangeni olulodwa (monoecious). Kulokhu, impova lula. Abanye babe besilisa izimbali zesifazane akhiqizwa ku ezahlukene izitshalo (dioecious), futhi kungenziwa akhiwe kusukela komunye amabanga amade uma liya.

Izici

Leli cebo (imbali isakhiwo) kwenza kube nokwenzeka ukuba baqonde okushiwo division isitshalo yizimiso ubulili. izimbali ngithanda abesilisa nabesifazane (amacembe yabo), avame ukuba kancane elikhanyayo. Lokhu kungenxa yokusondelana iduna organelles zesifazane. Ngisho eyodwa kwanele isinambuzane ezithutha impova. Kwezinye zezinto eziphilayo stamens ngokuvamile sihlelwe ngendlela yokuthi impova, doti, uma uthola phezu pistil. izimbali Dioecious impova ngokwabo abakwazi. Ngakho-ke, amacembe zabo kukhona Umbala elikhanyayo ukuheha izinambuzane.

Kunezinye ngeengaba. Ezinye izitshalo eziqhakaza 3 - 4 amasonto emva ayihlwanyelayo (yonyaka), kuyilapho abanye kuphela ngonyaka wesibili noma wesithathu (eside). Ezinye zihlahla ukufinyelela izinga lokuzala kuphela ngemva kweminyaka eyishumi. Omunye ingxenye isitshalo blooms yesikhathi esinqunyiwe, abanye (citron) "ukwenza" ngaso sonke isikhathi. Ngenxa yalokho, ne nobuningi esifanayo kukhona ukukhula of izithelo nembewu.

Ingqikithi yalo imbali uvula ukufinyelela izitho main zokuzala. Njengoba nokuvuthwa lwegciwane amaseli lokuqala kwenzeka dehiscence ihlumela. Perianth wadalula: kuqala, sepals, amacembe ke. Njengoba uvuthwe ukufinyelela evulekile ngokugcwele anthers kanye stamens hhayi ukuvimbela bezibona inhlamba zesifazane impova besilisa.