磷酸二氢钾有促进气孔开张的作用，使蒸腾强度和相对失水率相应增大。
Potassium dihydrogen phosphate promoted the opening of stomates so as to increase evapotranspiration intensity and relative water loss rate.
草甘膦10%水剂却使RR 2气孔导度和蒸腾速率先增加后降低，但是各浓度下的蒸腾速率均低于对照。
Glyphosate 10% aqua increased the stomatal conductance and transpiration rate of RR2 at low dosage, but decreased at high dosage, while transpiration rate at each dosage was lower than the check.
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