根水势变化趋势与叶水势相反。
叶水势可以反映作物水分状况，叶温越高，叶水势越低。
Water potential of leaf reflected crop water condition. The lower water potential of leaf the higher leaf temperature.
在相同干旱胁迫下，低氮处理的叶水势高于高氮处理的叶水势。
Under the same soil drought status, leaf water potential under high nitrogen level was lower than that under low nitrogen level.
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。
Leaf water potential and transpiration velocity of plant is two important physiologic index that reflect water regime of plant.
同时也分析了土水势和叶水势的关系，叶水势与光合作用的关系等。
The relationships between soil water potential and leaf water potential, and those between leaf water potential and photosynthesis were studied.
当土壤含水量在9.5％以上时，随土壤含水量的下降叶水势变化不明显。
When soil moisture contents were above 9.5%, there was no apparent change in leaf water potential with a drop in soil moisture contents.
在四种作物的抽穗期同时测定其气孔扩散阻力、蒸腾速率与叶水势日变化。
The resistance of stomatic diffusion, evapotranspiration rate and daily progress of water potential in leaves of the four kinds of crops were determined at the same time in their heading stages.
当土壤含水量在9.5%以上时，随土壤含水量的下降叶水势变化不明显。
When soil moisture contents were below 9.5%, leaf water potential dropped rapidly with a decrease in soil moisture contents.
喷灌条件下，当返青后灌水量超过150mm时，灌水量对叶水势的影响减小。
Under sprinkling irrigation, when the irrigation rate exceeded 150mm after the wheat returned green, its effect on leaf water potential decreased.
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。
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.
通过相关性分析得出土壤基质势，叶水势，大气水势三者在时间和空间上都有很大的差别。
Soil matric potential, leaf water potential and atmosphere water potential is diversity in temporal and spatial variation.
通过不同程度的水分胁迫对欧李叶水势、气孔导度、蒸腾速率和光合速率日变化影响的研究。
This paper was carried out to study the effect of water stress on the diurnal change of photosynthetic rate of Chinese dwarf cherry.
在喷灌区一季冬小麦的试验表明，冬小麦叶水势值在各生育期每天的14：00左右发生明显变化；
It was shown by the experiment carried out in the sprinkling irrigation area that change in leaf water potential was obvious at 14:00 everyday;
同时，光合利用效率随叶水势、土壤水势的下降总体呈上升趋势，说明马尾松具有较高的耐旱生产潜力。
The photosynthesis rate will increase with the descendant leaf potential and soil potential, which demonstrates that Masson pine has much higher productivity of drought stress.
本试验以20年生金冠苹果为试材，研究了不同负载量对叶水势、脱落酸和叶绿素水平季节变化的影响。
Water potential, abscisic acid and chlorophyll were measured from Aprol to November in leaves from proper and heavy load branches of 20-year-old apple (M. pumila Mill.
影响豌豆叶水势日变化因子中最重要的是大气相对湿度，其次是大气水势、土壤水吸力、大气温度和太阳辐射。
Relative air humidity is the dominant factor for field pea to affect daily dynamics of leaf water potential, followed by air water potential, soil water suction , air temperature and solar radiation.
结果表明：一天中叶水势值与土壤水分状况密切相关，叶水势与土壤含水量呈正相关，回归方程为变形双曲线；
The results showed that there was a close relation between leaf water potential and soil moisture during a day.
这些表明CWSI较好的反映了因土壤供水不足导致的作物水分胁迫，CWSI与叶水势之间呈明显的负相关关系。
The above inclusions show that the plant water stress is due to the lack of water, Thereis obvious negative correlation between CWSI and leaf water potential.
温度和水分状况对叶片渗透势的影响与叶水势不同，随温度升高和水分胁迫的加剧，叶片渗透势则呈先降后升趋势。
When the temperature rises and the water stress becomes bigger, the leaf osmotic potentials show down first and then up.
随土壤温度升高土壤水势增大，显示温度对田间土壤水势的正效应，且高肥力的正效应大于低肥力。温度对小麦叶水势具有显著负效应，即小麦叶水势随气温升高而降低。
Soil water potential increased with the increase of the soil temperature and this showed that the effect of temperature on water potential of soil was positive.
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.
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。
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。
The results showed that the transpiration rate, leaf RWC, water potential, water-consumption and water use coefficient were decreased with soil water decreasing.
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