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以燕麦为试材,研究了在轻度水分胁迫条件下,不同氮水平对燕麦在孕穗开花期旗叶的光合特性的影响。结果表明,轻度的水分胁迫抑制了燕麦旗叶的光合作用,而在此条件下,高氮水平可以明显增加燕麦的光合效率和蒸腾速率,增大气孔导度,使其中的某些光合指标接近于正常水肥供应下的水平。
The effects of different nitrogen levels on the photosynthetic characteristics of flag leaves of oats at booting and flowering stage under light water stress were studied using oats as test material. The results showed that mild water stress inhibited the photosynthesis of oat flag leaf, while under these conditions, high nitrogen level could significantly increase photosynthetic efficiency and transpiration rate of oats, increase stomatal conductance, so that some of them photosynthetic indicators Close to the normal level of water and fertilizer supply.