Decreased relative humidity induces decreased net photosynthetic rate.
相对湿度降低，净光合速率也降低。
Anatomic construction, density and relative opening degree of stomata, stoma conductivity, transpiration rate, and photosynthetic rate of pear leaves of both irrigated and dry land were tested.
比较测定了水、旱地梨树的叶片解剖构造、气孔分布密度与相对开张度、气孔传导率、蒸腾速率以及光合速率。
The ETR was higher shows the rate of relative photosynthetic electron transport was higher.
而ETR较高又说明叶片细胞的相对光合电子传递速率较高。
The bottom light intensity of th and JH were appropriate, so the populations kept photosynthetic rate high and got relative higher biomass.
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.
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。
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