主要是阻碍蒸腾作用的，叶片含水越少，阻力越大。气孔阻力主要取决于气孔开张度，气孔全开时阻力最小。
... 气孔阻力 [gap=1653]Keywords】: soil microbiotic crust,evapotranspiration value,transpiration rate,stomatal resistance ...
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也有用气孔阻力 stomatic resistance
It was revealed that significant differences in leaf water potential,stomatal resistance,transpiration rate, and rate of water loss of excised-leaves existed among genotypes.
研究表明，叶水势、气孔阻力、蒸腾强度和离体叶片失水速率品种间均存在明显差异。
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蒸腾速率与气孔阻力呈显著负相关。
Negative correlation between the transpiration rate and the stoma resistance also existed.
这种现象是由于受气孔阻力的影响所致。
This phenomenon is mainly caused by the stomatal resistance.
两个品种的叶片气孔阻力没有明显区别。
And no remarkable difference of leaf stomatal resistance was found between the two cultivars.
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