干旱对罗马尼亚西南部一些木本树种生理的影响

"Annals of the University of Craiova - Agriculture, Montanology,Cadastre Series " Pub Date : 2020-12-20 DOI:10.52846/aamc.2021.02.04

L. BUȘE-DRAGOMIR, I. Nicolae

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引用次数: 0

摘要

2021年7月至9月在Comanesti Hills进行的测定旨在确定该地区长期干旱对栎(Quercus cerris)、Q. Robur和Q. freinetto等树种幼树生理过程的影响。结果表明，这三个物种都受到了影响。结果表明，干旱减少了叶片中的水分，改变了自由水/束缚水的比例，降低了光合作用。气孔导度的降低是导致光合作用降低的主要因素，但色素含量的降低也是一个决定因素。青叶的特性在一定程度上构成了该树种幼树的保护因素。

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THE EFFECT OF DROUGHT ON THE PHYSIOLOGY OF SOME WOODY SPECIES FROM SOUTHWESTERN ROMANIA

The determinations carried out between July and September 2021 in the Comanesti Hills aimed to establish the effect of the prolonged drought in this area on the physiological processes in the young trees of the species Quercus cerris, Q. Robur and Q. freinetto. The results obtained showed that all three species were affected. It was found that drought reduce the amount of water in the leaves, change the ratio of free water / bound water, reduce photosynthesis. The reduction of the stomatal conductance was the main factor that led to the decrease of photosynthesis, but also the lower content of pigments can be considered a determining factor. The peculiarities of the leaves of the species Q cerris have constituted to a certain extent a protective factor for the young trees of this species.

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"Annals of the University of Craiova - Agriculture, Montanology,Cadastre Series "

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