Some of the following physiological and biochemical characteristics were affected: the respiratory rate reduced with the night temperature decreasing; the amylase activity of the rice seedlings and photosynthesis rate were highest under temperatures rangi
Some of the following physiological and biochemical characteristics were affected: the respiratory rate reduced with the night temperature decreasing; the amylase activity of the rice seedlings and photosynthesis rate were highest under temperatures rangi
实验结果表明，昼夜变温处理对水稻幼苗的某些生理生化指标产生明显影响：幼苗的呼吸速率随夜间温度的下降而降低；30/20℃处理组水稻幼苗的淀粉酶活性最高（比30/30℃处理的对照高16.67%）、光合速率为最高（比对照高10.52%,19.60%）；而30/15℃处理组的脱氢酶活性最高（比对照高13.86%）、叶绿素含量为最高（比对照高19.31%~20.36%）。