以杂交稻龙两优072和深优9576为材料,在头季稻收割后喷施不同激素,研究外源激素对再生稻产量及相关生理特性的影响。结果表明,各激素处理再生稻不同节位的产量均高于对照(CK),不同激素处理的增产效果表现为复配剂> IAA > 6 - BA > GA_3。各激素处理不同节位和生育时期的LAI(龙两优072倒2节孕穗期LAI除外)及干物质积累量均较CK有不同程度的增加,各激素处理的叶绿素含量、光合速率和根系活力均高于CK。
摘要(英文)：
Using two hybrid rice varieties Longliangyou 072 （ LLY 072 ） and Shenyou 9576 （ SY 9576 ） as the mate- rials, the effects of exogenous hormones on grain yield and related physiological characteristics of ratooning rice were studied by spraying different hormones after harvesting of the main crop. The results showed that the yields at different nodes of ratooning rice of all hormone treatments were higher than those of the control （CK） , and the yield increasing effect of different hormone treatments was in order of the compounded agent 〉...
