The t ranspiration rate was decreased by 30% when CO2 enrichment. The drought stress increased leaf water potential,and stomatal resistance and decreased transpiration rate and photosynthetic rate.
干旱胁迫使叶片水势、气孔阻力增大，蒸腾速率、光合作用速率下降。
参考来源 - 羊草叶片对高COIn space, water potential of air is much less than that of leaves and soil, the discrepancy between leaves water potential and soil water potential is not very large if compared with airwater potential.3.
在空间上，大气水势远低于植物叶水势和土壤水势，植物叶片水势与土壤水势之间的差值相对于大气水势来说，两者相差不是很大。
参考来源 - 陕北黄土区主要造林树种蒸腾耗水及光合特性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
绢毛相思叶片水势降低时，叶片鲜重的变化较大叶相思大。
The change of leaf fresh weight for Acacia auriculaeformis was greater than that of Acacia cincinata during leaf water potential fall down.
中午木质部水势与叶片角有显著相关性。
Blade Angle is strikingly correlated to xylem water potential at midday.
对春小麦叶鞘、叶片和茎水势的变化情况进行了比较。
Comparison of the water potentials of leaf, sheath and culm has done.
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