【摘要】 [目的]为探索0.004 0%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;每穗总粒数与每穂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。更多还原

【Abstract】 [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 effective use of Brassinolide in rice production.更多还原