Ukuwa kweLeaf - yintoni na? Iibangela kunye nokubaluleka kwento

Ukuwa kwamaqabunga ... Yintoni eyenzekayo yonke iwa, wonke umntu uyazi. Kodwa kutheni imithi ilahlekelwa yimpahla yayo enhle? Impendulo yalo mbuzo oyifumanayo kwinqaku lethu.

Iyintoni ihlathi eliwa?

Kukho neyantombazane malunga nokuwa kweqabunga. Ixelela ukuba ngaphambili zonke izityalo zazifudumele. Emva kokuba kubanda, kwaye zonke izilwanyana zaya kwiindawo ezifudumalayo. Kwaye enye intaka encinci enephiko elilimazile ayikwazanga ukwenza. Ngesicelo sokunceda waphendukela kwimithi. Kodwa babexakeke kakhulu. Kuphela i-spruce kunye nephayini ayizange ikhanyele, ukukhusela ebusweni kumasebe awo. Kwaye amajikijolo aphethwe ngumjunipha. Njengesijeziso, uMoroz wayala umoya ukuba adilize amaqabunga ebusika kunye nemithi engenamdla.

Isiqhamo esicacingayo sihlala sisisigxina seqanda lokubanda. Oku kusebenza kuphela kwizityalo ezikhulayo kummandla oshushu kunye nokutshintsha okucacileyo kwamaxesha. Nangona kunjalo, abameli bezobuTropiki bobukumkani baphinde balahle amahlamvu. Oku kufuthi kubakho ngaphambi kokuba kube nesomiso.

Iyintoni ihlathi eliwa? Le yinto ehamba phambili ebomini kwezityalo. Inokudityaniswa neemeko ezahlukeneyo, ngaphandle kweqhwala kunye nesomiso. Ngokomzekelo, oku kungabonisa umonakalo wombane, ukusuleleka kwintsholongwane okanye i-toxins. Ngaloo ndlela, ukuyeka amaqabunga kuyindlela yokukhusela isityalo.

Izizathu zeqabunga liwa

Ngoko kutheni izityalo kufuneka zitshintshe ngokukhawuleza izambatho zazo eziluhlaza kwaye yintoni imetamorphosis ehamba nale nkqubo? Ngaphambi kokuqala kweqabunga, amaqabunga ahlala eshintsha umbala wabo. Oku kungenxa yokuguqulwa kweeplastidi. I-chloroplast iqukethe i-pigment ebizwa ngokuthi i-chlorophyll, eyenza amaqabunga aluhlaza. Kukukho ukuba inkqubo ye-photosynthesis yenzeke, enye yeemeko zokuba kukho ubukho bamanzi.

Xa izimo ezingekho phantsi zivela kwisiseko sephepha, iplagi yenziwa. Ithintela amanzi ekungeneni kwiphepha. I-Photosynthesis ayinakwenzeka, ngenxa yoko i-chlorophyll ibhujiswa. Kodwa ezinye iingubo ziqala ukuvela, kwaye amaqabunga abe obomvu, aphuzi, i-orange okanye imfusa. Imithi neentlobo zibonakala ziguqula impahla yazo.

Indwangu yesikhombi, esekelwe kwinqanaba leqabunga, lenza le ndawo ibonakale. Nangona umoya omncinci ungabangela ukuba i-petiole iphume kwisiqu.

Izityalo ezinqabileyo

Yaye yintoni na iqabunga liwela kwiqondo lokujonga umzimba? Oku kuyimfuneko ekhuselekileyo ekuchaseni ngokugqithiseleyo kobutyu. Ekubeni umphezulu weqabunga lasemagqabini liyisiseko sokuphefumula, isityalo sinqumla nje. Amanzi ayimfuneko kakhulu ukuba isityalo sibe nexesha elibandayo, ngoko akunakulungele ukulahlekelwa.

Phantse zonke ii-angiosperms ziyanqwenela. Kodwa kukho ukungafani. Ngokomzekelo, izihlahla ezibomvu i-bilberry, ledum, i-heather igcina amaqabunga. Ukwenza oku, banamanye amacebo okukhusela ekulahlekeni kwamanzi. Ngoko, ngaphantsi kwemaqabunga e-cranberry kukho amancinci amancinci, iindonga eziqulethe i-incyous substance ephazamisa amanzi. Inkqubo yokukhuphuka kwamanzi kwiLedum inceda ukunqanda amafutha abalulekileyo. Bazalisa ukuhamba okhethekileyo kumagqabi esi sityalo.

Engunaphakade

Kodwa kukho izityalo ezingazi nokuba liphi iqabunga lokuwa. Baphantse bonke abameli beSebe le-Gymnosperms. "Ubusika kunye nehlobo-umbala omnye" - lo mfihlelo oqhelekileyo kubo bonke ukususela ebuntwaneni ngabo. Amaqabunga e-gymnosperms abizwa ngokuba ngamasilane. Zincinci kakhulu, ngoko ukukhuphuka kwamanzi ebusweni babo akunakunyani.

Imithi e-Evergreen ilahlekelwa ngamaqabunga nje kuphela. Ngokomyinge oku kwenzeka kwiminyaka engama-4-5. Kwaye kwipineyini ejikelezayo, iinaliti zinokusebenza iminyaka engaphezu kwe-40. I-gymnosperm kuphela eguqula isimbozo sayo xa kushintshana ixesha lilorch.

Ngoko, ukuwa kweqabunga kuyinkqubo ye-biological, enexabiso elibalulekileyo lokukhusela ubomi besityalo. Inokudityaniswa nokutshintshwa kwexesha, ukulimala kwizitho zabo okanye ukuqala kwexesha elibi.