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 effects of wiping out roots on rice canopy apparent photosynthetic rate (CAP) after heading were studied with solution experiments.
红菜苔叶片叶绿素含量、叶面积指数及比叶重与群体光合速率成正相关；
B. campestris content of leaf chlorophyll, leaf area index , leaf area-weight ratio were positive significantly correlated with the PR.
比叶重、叶绿素含量和群体光合速率等叶片性状与群体干物质生产密切相关。
The relationship of production of population dry matter was strong with the leaf characters such as ratio of leaf weight with leaf area, chlorophyll content and population photosynthetic rate.
介绍了一种植物群体光合速率测量装置的设计原理、结构及其测量和计算方法。
In this paper, the principle of design and constitution of the installation for measuring photosynthetic rate of plant population, and methods of measurement and calculation were introduced.
因此，提高生育后期的群体光合速率，延长其高值持续时间，对于增加棉花产量及改善品质具有重要作用。
It indicates that improving canopy apparent photosynthesis rate in latter growing period and prolonging its duration are important to improve cotton yield.
结果表明：脱毒马铃薯的群体光合速率、群体叶源量、干物重量、叶面积重量、叶面积系数均优于未脱毒处理。
The results showed the mass photosynthetic rate, mass leaf source amount, dry matter weight, leaf areas weight and index of virus-free potato were superior to that of potato.
群体光合性能增强，籽粒灌浆速率高，成熟期脱水速度快，增产效果显著。
When photosynthesis potential of population, grain filling rate and dehydration speed in mature period were improved, the increasing of yield would be significant.
同行混播和间行混播群体下部光照强度适宜，群体保持较高的光合速率，并最终形成了较高的草产量。
The bottom light intensity of th and JH were appropriate, so the populations kept photosynthetic rate high and got relative higher biomass.
此外，中等行距配置群体具有适宜的叶面积指数和较高的剑叶光合速率；
Moreover, there were appropriate leaf area index and higher photosynthetic rate of flag leaf at medium row-spacing treatment.
此外，中等行距配置群体具有适宜的叶面积指数和较高的剑叶光合速率；
Moreover, there were appropriate leaf area index and higher photosynthetic rate of flag leaf at medium row-spacing treatment.
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