Mene ne transpiration? Features ruwa amfani a tsire-tsire

Tsari ruwa amfani a cikin shuka jiki dangane evaporation. Duk da haka, shi ne wuya da dama daga ilimin Halittar Jiki da kuma physiological halaye na amfanin gona.

Mene ne transpiration?

A girma daga ruwa cewa evaporates shuka, da yawa fiye da sau da adadin dauke a cikin al'adunsu. A zamani noma yi, tambaya na tattali kashe kudi na danshi ne daya daga cikin mafi latsa. Kamar yadda K. A. Timiryazeva, transpiration aiwatar gaba ɗayansa, shine wata al'ada physiological cuta. A gaskiya, shi ba a dauke zama dole domin shuka. Alal misali, idan da al'adun girma a karkashin low kuma high zafi, a farko yanayin, transpiration (danshin) ne mafi tsanani. A daidai wannan lokaci da ci gaban da tsire-tsire ne guda ko ma mafi alhẽri a karo na biyu idan.

Transpiration: darajar

Don wasu har, shi da amfani shuka. Bayanin abin da transpiration, dole ne ka farko alama ta m aiki. Danshin taimaka kare shuke-shuke daga zafi fiye da kima a karkashin kai tsaye haskoki na rana. Alal misali, da yawan zafin jiki bambancin da ganye, na fi son danshi da kuma na fi son na iya canza a cikin 7 digiri. Wannan shi ne na musamman muhimmancin ga aiwatar da photosynthesis. Gaskiyar ita ce, lokacin da overheated fara lalata chloroplast. Wannan, bi da bi, slows saukar photosynthesis. A ganiya zafin jiki ne a cikin kewayon 30-33 digiri shi. Saboda haka, abin da yake transpiration? Wannan amfanin gona kariya, kyale su su jure high yanayin zafi sosai.

A ci gaba da motsi na ruwa

Bayanin abin da transpiration ne, ya kamata ka kula da daya daga cikin m dukiya. Yana taimaka wa ci gaba da motsi na da ruwa daga tushen da ganye. Ta haɗa dukan abubuwa na shuke-shuke a cikin daya. Tare ma'adinai mahadi da kuma na Organic abubuwa motsa tare da al'adun gawarwakin danshi. A mafi tsanani shi ne aiwatar da transpiration, da sauri suka motsa. Wasu mahadi iya gabatar a cikin sel a wani m hanya. Transpiration, a takaice magana, shi ne wani totur haihuwa abubuwa.

rarrabuwa

Bayan tãtacce abin da transpiration, za ka iya ci gaba da shawara ta jinsunan. A kimiyya, akwai iri biyu shi. Transpiration iya zama stomatal da cuticular. A cikin farko idan da danshin ne da za'ayi ta hanyar da stomata, na biyu - da dukan surface na takardar. Wannan bambanci da aka farko sanya a 1877. Tabbatar cewa transpiration ba kawai ta hanyar da stomata, na iya zama quite sauki. Alal misali, za ka iya yi da ganyen apple. A cikin wadannan stomata ne kawai daga kasa. Wannan surface kamata shafa Vaseline. Danshin zai ci gaba ta hanyar da cuticle, amma ga wani karami har.

Structure stomatal danshin

Transpiration hada da:

1. Motsi ruwa daga tasoshin xylem cell ganuwar da kuma symplast.
2. Danshin a podustichnye rami da intercellular sarari tare da kara yadawa a cikin kewaye iska ta cikin stomatal tsaguwa.

A kasan zumunta zafi, da ƙasa da ruwa yuwuwar na kewaye yanayi. Idan shi ne kasa da podustichnyh cavities, danshin zai auku zahiri. Regulation na transpiration iya zama stomatal da vneustichnoy. A farko yana da za'ayi ta bude da kuma rufe pores. A cike da murfin domin transpiration an rage zuwa kimanin 90%.

tsanani

Frequency na yau da kullum transpiration lura a dama shuke-shuke. Duk da haka, daban-daban na amfanin gona aiki stomata auku daban. A inuwa-m shuke-shuke, da itatuwa, da yawa jinsunan ciyawa da sauran shuke-shuke gidrostabilnyh, wanda shi ne halayyar cikakken tsari na stomatal transpiration, shi zai fara zuwa ketowar alfijir. Danshin kai ta matsakaicin da safe. By karkatar rana, da transpiration rate an rage. Its karuwa an kiyaye sake da yamma tare da wani karu a zazzabi. Irin wannan danshin tsanani sa qananan diurnal canje-canje a osmotic matsa lamba da kuma girma na ruwa a cikin ganyayyaki. A gidrolabilnyh (da ciwon da ikon jure da kaifi hawa da sauka daga danshi abun ciki a cikin wani yini) akwai unimodal tare da wani ganiya danshin zawãli. Kuma a gaskiya, da kuma a cikin wani hali, transpiration da dare ne kadan ko rasa ɗaya.