Fibrous tushen tsarin: tsarin fasali da kuma ayyuka

A tushen da shuka jiki aikin m ayyuka. Babban na su - kayyade a cikin ƙasa, tsotsa da kuma dauke da na ruwa da abubuwa narkar da shi, kazalika da vegetative yaduwa. A yiwuwa na wadannan matakai suna hade da daban-daban tsarin fasali na tushen tsarin.

Mene ne tushen?

A tushen wata shuka kira karkashin kasa da sashin jiki. Ko da yake samu ta halitta ta musamman iri-iri - numfashi, wanda suke iya zuwa sha danshi a cikin iska. Dangane da tsarin fasali na dama iri tushen: main, a kaikaice da m.

Farko da shuka ne ko da yaushe guda. Daga shi tashi a kaikaice asalinsu. Yawancin lokaci, da yawa daga cikinsu, godiya ga ya karu absorptive surface area. Tushen da girma kai tsaye daga tsere, ya kira sassan jumlar.

Nau'in na tushen tsarin

Amma ga duk iri-iri na karkashin kasa da sashin jiki ayyuka na daya irin shuka kwayoyin bai isa ba. Saboda haka, suna hada dasu wajen samar da iri biyu tushen tsarin. A core kunshi babban kuma gefen. Its main amfani shi ne, da shuke-shuke daga core tsarin iya samun ruwa daga zurfin karkashin kasa.

Fibrous tushen tsarin kafa kawai adventitious Tushen, wanda mika daga sama-ƙasa sassa na shuka - da mafaka. Suna girma a manyan katako, mafi yawansu ba su da wannan tsawon.

Fibrous tushen tsarin hankula ga wakilan da iyali na hatsi (Poa), Albasa, Liliaceae. Dukan su kasance a cikin aji na monocotyledons.

Fibrous tushen tsarin

Daga cikin dicotyledonous karkashin kasa sashen irin wannan da plantain. Fibrous tushen tsarin tasowa a kan wani modified mafaka. Wani misali na wannan zai iya zama a matsayin strawberry gashin baki ko rhizomes ferns.

Fibrous tushen tsarin ne iya shiga cikin ƙasa a nesa na mita biyu. Akwai ta ke da isasshen ƙarfi tsiro a fadin.

Tun farkon babban tushen da tsarin fara girma. Duk da haka, ya zarar ya mutu kashe da kuma aka maye gurbinsu da adventitious steblerodnye jinsunan.

Tsawon fibrous tushen tsarin dabam. A cikin babban rinjaye na hatsi da ta kai mita uku da kuma masara - har zuwa goma. A wasu daga cikin mafi muhimmanci da wakilan monocots - alkama da hatsin rai - da girma daga cikin adventitious tushen ci gaba a zurfafa daga sama zuwa dama dubun santimita. Saboda haka, wadannan tsire-tsire ne sosai kula rashin danshi.

Amma da fibrous tushen tsarin da kuma yana da abũbuwan amfãni mãsu yawa. Da yake a m zurfin, da ya rufe da wani yawa ya fi girma yanki na abinci. Alal misali, jimlar tsawon dukan tushen na alkama ne game da 20 km.

Shuke-shuke da fibrous tushen tsarin

Idan fari shi ne mafi munin maƙiyi ciyawa da asallanta, da shuka gumi halitta zones shi ne ba tsanani. Bayan duk, su, a maimakon haka, da wahala daga wani overabundance na ruwa. Yana iya sa Rotting tsari, wanda zai babu makawa kai ga lalata shuke-shuke. Wannan shi ne dalilin da ya sa suka yi yawan da muhimmanci kayayyakin aiki, don ci gaba a cikin wannan halitta yankin. Wannan ya bar wani m leaf ruwa, da kuma na bakin ciki haushi. Na musamman muhimmancin ne tsarin da karkashin kasa da jiki na wurare masu zafi da shuke-shuke. A manyan yawan surface adventitious tushen samar da m sha na Yã isa zama adadin danshi. By wannan zuwa gaba ruwa halin yanzu ake kawota ga ganye da samar da transpiration tsari - ruwa danshin daga surface na farantin.

Fibrous tushen tsarin ne halayyar shuke-shuke da cewa suna da wani kwan fitila. Su tara ruwa tare da narkar da na gina jiki. Tulip, Lily, leeks, tafarnuwa amfani da su a matsayin ajiye. Yana taimaka musu su tsira da ya fi karfinsu lokaci.

Gyara da kuma su ayyuka

A fibrous tushen tsarin sau da yawa faruwa gyare-gyare. A wannan batun, akwai ƙarin ayyuka. Alal misali, adventitious Tushen dahlia, Chistyakov da zaki da dankalin turawa zaki da dankalin turawa, wanda shi ne mai rare amfanin gona a wurare masu zafi kasashen, ana thickened da kuma samar da tubers. Su ba kawai store gina jiki da kuma ruwa, amma kuma shiga cikin vegetative yaduwa. M tushen na orchids ne ma kashi. Sun iya zuwa sha danshi daga cikin iska.

Fibrous tushen tsarin hali na aiwi. Tare da shi, shi clings zuwa goyon baya da kuma tsiro sama, kawo ganye zuwa haske. Wasu wurare masu zafi shuke-shuke da nunawa adventitious Tushen kai tsaye a cikin kututturan da kuma rassan. Girma a cikin ƙasa, sunã bauta wa, kamar yadda jingina ga mai fadi da kambi. Wannan guda na'urar aikata, da kuma masara. Tun da adventitious Tushen yawanci dauki matsayin da surface da ba su iya ci gaba da shuka a cikin ƙasa, da wannan aikin da aka yi da wani irin madadin.

Saboda haka, fibrous tushen tsarin shi ne hali da yawa shuke-shuke da kuma samar da muhimman ayyukan ci gaban, abinci mai gina jiki da kuma haifuwa.