Madzi evaporation mbewu zamoyo

Madzi evaporation kapena transpiration, - ichi ndi chofunika kwambiri pa moyo wa mbewu. Madzi chosakanikirana ndi dongosolo muzu pamodzi ndi mchere kusungunuka zofunika kukula wabwinobwino wa chamoyo. Ambiri mwa madzi odzipereka ukuphwera masamba.

Udindo wa madzi mu chitukuko zomera thupi. Madzi - ndi chinthu chofunika kwambiri ndi ntchito ka moyo wa mbewu n'zovuta Musaone. Chifukwa madzi kuthandiza turgor maselo, kupanga masamba ndi zimayambira kusintha ndi ndinapirira. Popanda zokwanira madzi zomera mofulumira chimazilala.

Komanso, pamodzi ndi madzi ndi chosakanikirana ndi muzu wa mchere amafalitsidwa ziwalo zonse za mbewu. Chinyezi komanso amateteza thupi ku kutenthedwa. Evaporation wa madzi ndi zomera kumachitika makamaka kudzera stomata - wapadera mapangidwe masamba. Mu zina transpiration ikuchitika ndi lonse chomera mwa nsalu chophimba.

Stomata ndi dongosolo lawo. Evaporation masamba madzi akupezeka poyambilira kudzera dongosolo lapadera lotchedwa stoma. Stomata tichipeza maselo awiri alonda kachigawo mawonekedwe, pakati limene pali kusiyana yaing'ono. Khoma mkati maselo alonda ali thicker ndi akunja - woonda. Mu dongosolo ili M'mimbamo yaing'ono.

Stomata ili mbali zonse za pepala ndi. Koma zomera zambiri zili mu gawo lamkati la izo. Koma pa zomera madzi, masamba analankhulana ndi madzi (mwachitsanzo, madzi kakombo), - kumbali lakunja la tsamba.

Dziwani kuti stomata ndi udindo osati kwa evaporation wa madzi, komanso kuwombola mpweya ndi mlengalenga - mwa iwo ndi mpweya ndi mpweya.

Evaporation wa madzi: izo zikuchitika? Monga tanenera kale, transpiration angayambe kudzera chimakwirira lonse chomera thupi thupi - mu nkhani iyi imatchedwa cuticular. Masamba, umatheka ndi matupi zina za zomera achinyamata ataphimbidwa ndi wosanjikiza umodzi wa khungu - mu izo ndipo pali chinyezi kuchotsa. Zomera okhwima kwambiri padziko lakunja la mpira unayikidwa ndi sera cuticle amateteza lake pa imfa kwambiri chinyezi komanso kuyanika kunja. Choncho, cuticular transpiration mu masamba okhwima yafupika yochepa.

Main evaporation akudutsa izo kupyolera stomata lapansi. Kuyamba chimachititsanso madzi kupyolera ziwiya xylem, ndiye amasuntha maselo makoma a mu malo intercellular kumene podustichnye pamodzi M'mimbamo lapansi.

Kutsegula ndi kutseka stomata kwenikweni zimadalira kuchuluka kwa madzi. Pamene chinyezi amasonkhana maselo alonda, iwo kutambasula ndi kutenga maonekedwe a kachigawo ndi - Pankhaniyi kusiyana ndi chikuyamba. Ngati madzi okwanira maselo, iwo anataya turgor, malinga awo kugwa pansi ndi kutseka kudula.

Boma la zotsatira stomata ndi wokhutira wa carbon dioxide. Ngati mlingo mu zimakhala za zomera plummets, njira ya stomata kutsegula adamulowetsa. A pa wovulaza ndende ya kusiyana mpweya kutsekedwa. N'chifukwa chake stomata amakhala otseka usiku, pamene njira ya dzuwa mabasi.

Evaporation wa madzi ndi makhalidwe ake kachulukidwe. Monga ndondomeko ina, transpiration ali zizindikiro zake kachulukidwe, amene ntchito pa ulimi, sayansi ndi mitundu ina ya anthu.

Mwachitsanzo, mlingo transpiration limasonyeza magalamu angati a madzi allocated mbali imodzi ya mbewu m'dera pa nthawi unit. Ndi kuyeza zokolola za transpiration, n'zotheka amanena kuti kulemera wouma mbewu wakhala anasonkhanitsa pa evaporation a kilogalamu imodzi ya madzi. A liwulo zolozerazi, n'zotheka kupeza makhalidwe munthu wa mtundu mbewu, kukhazikitsa Nzofunikira kwa kukula zipatso.