Layi daya venation: Features na tsarin shuke-shuke

Layi daya venation na ganye samu a cikin yanayi sau da yawa isasshen kuma shi ne wani muhimmin alama na shuka rarrabuwa. Ga wasu kwayoyin, shi ne hali da kuma abin da suke da halaye, za mu tattauna a cikin na yau labarin.

Mene ne venation

List - mafi muhimmanci sashin jiki da shuka, yin harshen damo. Na farko farkon da ganin na aiwatar da transpiration da photosynthesis. Abubuwa da ake kafa a lokaci guda, motsa a kan wani musamman takardar tsarin. Yana da wani tarin abubuwa na conductive masana'anta ko, mafi kawai, da jijiyoyinmu. Su za a iya shirya a wani daban-daban domin. A yanayi na wuri da kuma kira veining.

iri venation

Akwai uku main iri venation. Wannan raga, baka da layi daya. Kuma ta halitta akwai wata hujja dangantaka tsakanin siffar na ganye ruwa da kuma yanayin da wuri na jijiyoyinmu. Ka yi la'akari da misalin wannan dogara a kan 'yan kowa da shuke-shuke. Alal misali, palchastye Maple ganye sun reticulate venation, a cikin abin da babban jijiyoyin bugun gini dam na fiber tsaye a waje a fili. Tashi daga shi mai tushe na biyu da kuma na uku umarni. A wannan tsari ne na hali ceri, peach, fure, soya, wake, dankalin turawa, tumatir, kabeji da kuma wasu dicots. A ganyen da mikakke samar da wata daban-daban tsarin da madugu tsarin. Idan babban jijiya ba kasaftawa, da kuma m motsi daga tushe takardar daga daya batu na arcs, sa'an nan da alaka a ta saman, wannan misali na biyu da irin. Shi ne hankula, misali, Lily na kwarin da plantain. Layi daya veining ma ya auku a mikakke ganye.

Layi daya venation takardar

Riga daga sunan a fili yake cewa a cikin jijiyoyinmu daga cikin ganye suna shirya a layi daya da juna. Sun mika daga gefen kwano, tare da shi. Layi daya venation ne halayyar monocots. Wadannan sun hada da mutane da yawa 'yan cikin iyali na hatsi, albasa da Lily. Edge na ganye ruwan wukake ba dismembered, kuma shi ne gaba daya lebur, sa shi yiwuwa a layi daya tsari na jijiyoyinmu.

Shuke-shuke da layi daya venation

Har ila yau, a layi daya venation for monocot halayyar ne gaban wani tayi da daya cotyledon, fibrous tushen tsarin, da rashin cambial nama a kara, ta farji ganye. Daga cikin wannan din raka'a fi na kowa ciyawa, akalla - shrubs.

Na musamman da tattalin arziki muhimmanci daga cikinsu akwai ciyawa ko bluegrass shuke-shuke. Masara, da alkama, da hatsin rai, da sha'ir, shinkafa - duk aka sani hatsi. Couch ciyawa, Kentucky bluegrass, Timothawus, brome ne na hali steppe shuke-shuke da aka daidai saba da yanayin kadan snow sanyi winters da zafi bushe lokacin rani. Daga cikin hatsi, da kuma da yawa m fodder amfanin gona.

A Lily, wanda masu muhimmanci da na ado da kuma zuma shuke-shuke, akwai kuma wakilan layi daya veining. Bã su da wani muhimmanci gyara daga cikin karkashin kasa gudun hijira - albasa. Amfani da ta data vegetatively karbe shuke-shuke da kuma canjawa wuri zuwa fari da misãlin lokaci.

Yadu rarraba a cikin yanayi da kuma albasa. Mafi sau da yawa, da suka girma a cikin natsuwa da gandun daji clearings. Godiya ga kwararan fitila, su sami damar zama a cikin yanayi na steppes, savannas da Hamada.

Saboda haka a layi daya veining hali na aji wakilan monocots. Wannan irin tsari na takardar na conductive abubuwa wakilta fibrovascular daure wanda aka shirya tare da farantin mikakke ganye.