调控剂对减缓水稻生育后期叶片衰老研究

    Study on the effects of regulators on postponing early aging of rice leaf at later developmental stages

    • 摘要: 齐穗期对7个水稻品种(组合)进行叶面喷施调控剂处理.结果表明,调控剂能提高叶片叶绿素含量、叶面积指数和剑叶饱和光合速率,与清水对照比较差异达到显著水平,从而显著提高产量并对降低稻米的垩白粒率有一定的作用.