The upper leaves are smaller and with lower photosynthetic rate.
上部叶片较小且光合速率较低。
Decreased relative humidity induces decreased net photosynthetic rate.
相对湿度降低，净光合速率也降低。
The result showed: In water stress, the Pn (photosynthetic rate) decreased.
结果表明，水分胁迫使欧李光合速率下降。
Photosynthetic rate of tulip behaved linearity decreased in anaphase of tulips.
郁金香后期光合速率呈线性陡降。
The net photosynthetic rate was in accord with both stomatal conductance and water potential.
净光合率的提高与气孔导度及水势的提高有一致趋势。
The peanut treated with BN could increase LAI and photosynthetic rate, which provided high yield.
喷施BN可以增大花生叶面积指数，提高光合效率，为花生高产奠定基础。
After plant infect with the virus, a photosynthetic rate of leaf of different leaf-age will lower.
植株感染病毒后，不同叶龄的叶片光合速率都会降低。
The photosynthetic rate and excretory ability affected the nitrogenase activity in the rhizosphere.
水稻的光合作用及报分泌能力影响根际固氮活性。
With proper rate of sulphur fertilizer application, the photosynthetic rate of soybean was increased.
适当的施用硫肥能提高大豆光合作用强度。
Low temperature and low light intensity were limited factors for photosynthetic rate in leaves of Panax ginseng.
低温和低光照强度均可成为人参叶片光合速率的限制因子。
It was necessary for maintaining normal chlorophyll content and net photosynthetic rate to supply macroelements.
供应大量元素是维持正常叶绿素含量和光合速率所必需的。
Leaf photosynthetic rate decreased significantly and rapidly as plants were subjected to extremely high temperature.
受异常高温的突然袭击后，柑桔叶的光合速率迅速大幅度下降。
The results showed that the content of chlorophyll and photosynthetic rate were decreased with soil water decreasing.
结果表明：光合速率和叶绿素含量均随土壤水分的减少而呈下降趋势。
The daily changes of photosynthetic rate is associated with the cyclic alterations of internal physiological periods.
光合作用的日变化与内部生理状态的周期性变化有关。
A midday depression in photosynthetic rate occurred in all hybrids, which might be caused by serious photoinhibition.
老品种光合作用的午间降低是由严重的光抑制引起的。
Therefore, the photosynthetic rate of grafting plant increased mainly due to expanding total leaf area of melon plant.
因此，嫁接主要是通过扩大植株的总叶面积来提高植株的光合速率的。
The changes of net photosynthetic rate was related mainly to stomatal conductance and intercellular CO2 concentration.
净光合速率主要的影响因子为气孔导度和胞间CO2浓度。
For sensibility response to shading in seedling period, the photosynthetic rate was stronger than chlorophyll content.
对苗期遮荫的敏感性反应，光合速率强于叶绿素含量。
The changes of photosynthetic rate in growing period related to the varieties of morphological and anatomical features.
光合作用速率在生育期中的变化与叶形态解剖特征的变化有关。
It was observed early that low concentrations of sodium bisulfite treatment increased net photosynthetic rate in leaves.
人们很早就已观察到低浓度亚硫酸氢钠处理能提高叶片净光合速率。
This paper was carried out to study the effect of water stress on the diurnal change of photosynthetic rate of Chinese dwarf cherry.
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。
The effects of wiping out roots on rice canopy apparent photosynthetic rate (CAP) after heading were studied with solution experiments.
利用水培试验，研究了剪根等处理后水稻群体光合速率的动态变化。
The hardened seedlings could maintain higher chlorophyll content and photosynthetic rate, lower electrolyte leakage % at chill temperature.
锻炼过的稻苗在零上低温下能保特较高的叶绿素含量和净光合速率，较低的电解质渗漏率。
The net photosynthetic rate (Pn) of strawberry leaves under green film was significantly lower than that of under all other film treatments.
除绿膜下草莓叶片的净光合速率较低外，其它膜下草莓叶片的净光合速率均无明显差异。
The photosynthetic rate of wild soybean was higher than that of the cultivated at vegetative growing stage, and lower at reproductive stage.
结果表明，野生大豆营养生长期光合速率高于栽培大豆，生殖生长期则小于栽培大豆。
Chlorophyll and carotene content in tomato leaves increased, while net photosynthetic rate, stomatal conductance and transpiration rate declined.
番茄叶片中叶绿素、类胡萝卜素含量增加；但净光合速率、气孔导度、蒸腾速率下降。
The results indicated that net photosynthetic rate (Pn)of lettuces was increased by adding nitrogen and potassium fertilizer and light intensity.
通过盆栽试验研究了增施氮钾和光照强度对不同品种莴笋光合特性和产量的效应。
Daily total canopy photosynthetic rate was simulated by Gauss integration, and total biomass was subtracting respiration and transformation from it.
采用高斯积分法模拟小麦冠层每日的总光合同化量，并经呼吸消耗与物质转化形成生物量。
The photosynthetic rate of tomato and cucumber grown in two composted substrates was higher than that of control in nutrition and reproductive stage.
同时两种秸秆腐熟基质在营养生长期和生殖生长期的光合速率比对照高。
The photosynthetic rate of tomato and cucumber grown in two composted substrates was higher than that of control in nutrition and reproductive stage.
同时两种秸秆腐熟基质在营养生长期和生殖生长期的光合速率比对照高。
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