欧洲垂枝桦对PEG诱导干旱胁迫的响应机制
干旱是限制植物生长发育的重要非生物因素之一,欧洲垂枝桦(Betula pendula Roth)原产欧洲,1981 年引种到辽东山区,为探讨欧洲垂枝桦在干旱胁迫下的生理响应机制,明确欧洲垂枝桦幼苗在干旱胁迫下各生长生理参数与光合特性的变化,以综合评价欧洲垂枝桦幼苗对干旱胁迫的响应。本研究采用不同浓度的PEG-6000 处理模拟干旱胁迫,对胁迫后与复水后欧洲垂枝桦幼苗进行生长生理指标的测定和叶片解剖结构、气孔结构以及细胞器超微结构观察,探寻欧洲垂枝…查看全部>>
Drought is one of the important abiotic factors limiting plant growth and development.The European pendant birch(Betula pendula Roth)is native to Europe and was introduced to the Liaodong mountains in 1981.This study used different concentrations of PEG-6000 treatment to simulate drought stress and clarify the changes of various growth physiological parameters and photosynthetic characteristics of European pendant birch seedlings under drought stress,in orde…查看全部>>
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