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对葡萄(8804品系)扦插苗进行不同程度的盐处理(0.2%,0.4%,0.6%),在一定时期对叶片的光合特性和叶绿素含量进行测定,结果表明:葡萄的净光合速率(Pn)、气孔导度(Gs)和蒸腾速率(Tr)的变化规律与叶绿素a、b的含量变化规律基本一致,即在处理前期都持续下降,中期出现一段时间稳定甚至上升,后期又开始下降;细胞间CO2浓度(C i)前期几乎不变,后期则迅速下降。类胡萝卜素含量的变化幅度较小。
The photosynthetic characteristics and chlorophyll content of leaves of grape (8804 strain) were treated with different degrees of salt treatment (0.2%, 0.4%, 0.6%). The results showed that the net photosynthetic rate (Pn) , The stomatal conductance (Gs) and transpiration rate (Tr) were basically the same as those of chlorophyll a and b, ie, the content of chlorophyll a and b kept the same in the early stage of treatment, the period of stable or even increased in the middle period, Between the CO2 concentration (C i) before the change is almost unchanged, the latter rapidly decreased. The content of carotenoids changed less.