割茬再生对光温敏核不育水稻“培矮64S”若干生理活性指标的影响

Effects of stem-cutting ratooning treatment on the activities of some physiological indexes of photoperiod(temperature)sensitive genic male sterile rice(PTGMSR)'Peiai64S'.

试验研究割茬再生对光温敏核不育水稻“培矮64S”主要生理活性指标的影响结果表明,割茬再生处理提高了“培矮64S”剑叶叶绿素含量和硝酸还原酶活性,促进可溶性糖向穗部集中累积,并提高“培矮64S”剑叶、茎鞘和穗部游离脯氨酸含量。

The effects of stem-cutting ratooning treatment on the activities of some physiological indexes of photoperiod （temperature） sensitive genic male sterile rice（PTGMSR）＇Peiai64S＇ were studied. The results show that the stem-cuttlng ratooning treatment can increase the content of chlorophyll and enhance the activity of nitrate reductase of the flag leaf. Meanwhile it promotes the accumulation of soluble sugar to panicle and increases the contents of free proline of flag leaf, stem, and panicle.