During the day water loss by transpiration exceeds water absorption by the roots and leaf water potential decline.
白天蒸腾作用散失的水分超过根系吸收的水分，因而叶子的水势就下降。
The relationship between transpiration and potential evaporation was linear for well-watered seedlings.
很好供水的苗木的蒸腾量与潜在蒸发量成线型相关。
Leaf water potential and transpiration velocity of plant is two important physiologic index that reflect water regime of plant.
植物叶水势和蒸腾速率是反映植物水分状况的两个重要生理指标。
The results showed that the transpiration rate, leaf RWC, water potential, water-consumption and water use coefficient were decreased with soil water decreasing.
结果表明，蒸腾速率、叶水势、叶片相对含水率、耗 水量和耗 水系数均随十壤水分的减少而呈降低趋势。
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。
As a key moisture parameter, potential consuming capacity of plants is reflected by transpiration rate and been studied by some people.
蒸腾速率作为一个重要的水分参数，反映了植物潜在的耗水能力，国内外许多学者对此进行了大量研究，并取得了研究成果。
And the transpiration rate, organ water potential, photosynthesis rate, growth rate will decrease with the fall of soil water potential.
数值分析还表明当土壤水势逐步下降时，蒸腾速率、组织水势、光合速率、生长速率都不断下降。
The diurnal change of water potential and water content of roots at dry side opposed to the transpiration.
一昼夜根系水势呈现出降-升-降-升有规律的变化；
The diurnal change of water potential and water content of roots at dry side opposed to the transpiration.
一昼夜根系水势呈现出降-升-降-升有规律的变化；
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