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将两个春麦品种在春播和夏播条件下进行生理指标的测定,对测定结果进行比较,夏播的叶绿索a含量明显低于春播的叶绿素a含量,叶绿素a/b比值也因夏播的气候条件影响而下降。春播与夏播小麦的旗叶净光合速率无明显差异。春播与夏播的干物质累积曲线的形状十分相似,但随播期的推迟生长曲线向坐标的左方移动。
The physiological indexes of two spring wheat varieties were measured under spring and summer sowing conditions. The results were compared. The contents of chlorophyll a in summer sowing were significantly lower than those in spring sowing. The chlorophyll a / b ratio was also affected by summer sowing The impact of climate conditions and decline. There was no significant difference in net photosynthetic rate of flag leaf between spring sowing and summer sowing wheat. Spring and summer sowing dry matter accumulation curve shape is very similar, but with the sowing delay growth curve to the coordinates of the left.