生长调节剂类物质对地膜旱作水稻灌浆速度及产量的影响

Effect of Several Plant Growth Regulators on the Filling Rate and Yield for Rice Cultivated in Aerobic Soil

用三十烷醇、绿田丰、喷施宝、花蕾宝四种植物生长调节剂类物质于地膜旱作水稻始穗期进行喷施。结果表明:这四种物质均能提高地膜旱作水稻后期的叶面积指数和叶绿素含量,延缓叶片衰老,增加干物质积累,促进籽粒灌浆,从而提高产量。其中,喷施宝增产效果最显著,较对照增产达11.03%。

Four kinds of plant growth regulators (Sanshiwanchun、Lvtianfeng、Penshibao and Hualeibao)were sprayed during the early earing stage of rice cultivated in aerobic soil. The results showed that the leaf area index and content of chlorophyll of rice cultivated in aerobic soil were increased, leaf senescence was delayed, the dry-material accumulation increased, and the rate of seeds filling starch improved. The yield of rice cultivated in aerobic soil was significantly increased. The highest yield increase reached 11.03%.