0.0040％芸苔素内酯AS对水稻的调节作用

目的]为探索0．0040％芸苔素内酯AS对水稻的调节作用。方法]以湘早籼45号为材料，研究不同浓度芸苔素内酯对水稻生长发育及产量结构的影响。结果]在水稻分蘖初期、孕穗期、灌浆期喷施芸苔素内酯对水稻株高及有效穗数均有明显促进作用；每穗总粒数与每穗实粒数也较清水对照多；水稻增产效果达显著水平。但喷施次数过多，不利于提高工效，需进一步研究最佳施药时期。结论]该研究可为芸苔素内酯在水稻生产中的有效应用提供参考。

Regulating Effect of 0.004 0 % Brassinolide AS on Rice

Objective ] The aim was to explore the regulating effect of 0.004 0% Brassinolide AS on rice. Method] Xiangzhaoxian No. 45 was used to study the different concentrations effect of brassinolide on rice growth and yield structure. Result] The results showed that in the early tillering, booting and filling stage spraying Brassinolide increased rice height and rice panicles significantly; Total grains per panicle and real grains number per panicle were higher than that of the water control ; Rice yield increasing reached a significant level. But spraying many times, did not help to improve the efficiency, so need to further study the best spraying period. Conclusion] The study provides a reference for effec-tive use of Brassinolide in rice production.