植物生长调节剂“立多”对小麦产量构成因子的影响  

Effects of Plant Growth Regulator "Liduo" on Yield Structure Factors of Wheat

作　　者：胡柯[1] 

机构地区：[1]商丘职业技术学院农学系,河南商丘476100

出　　处：《安徽农业科学》2007年第25期7803-7803,共1页Journal of Anhui Agricultural Sciences

摘　　要：[目的]为了研究植物生长调节剂"立多"不同时期施用对小麦产量结构因子的影响。[方法]采用随机区组设计,设置0 mg/kg 450kg/hm2(2月26日)、300 mg/kg450 kg/hm2(2月26日)、300 mg/kg450 kg/hm2(4月8日)、300 mg/kg450 kg/hm2(5月10日)4个处理,研究植物生长调节剂"立多"对小麦产量结构因子的影响。[结果]4个处理的小麦成穗数分别达到了357.0万、436.5万、387.0万、361.5万穗/hm2;千粒重分别47.3、48.4、48.8、50.366 g。[结论]在2月上旬至5月上旬,小麦早施用"立多"能明显增加分蘖、提高成穗率和提高亩穗数,而晚施有利于增加千粒重的作用。　[Objective] The aim of the research was to study the effects of applying plant growth regulator ＂Liduo＂ in different stages on the yield structure factors of wheat.[Method] In the field test with randomized block design,4 treatments of 0 mg/kg 450 kg/hm^2（Feb.26 th）,300 mg/kg 450 kg/hm^2（Feb.26 th）,300 mg/kg 450 kg/hm^2（April,8 th） and 300 mg/kg 450 kg/hm^2（May,10 th）were used to study the effects of plant growth regulator ＂Liduo＂ on the yield structure factors of wheat.[Result] In 4 treatments,ear numbers of wheat reached 357.0,436.5,387.0 and 361.5×10^4/hm^2 respectively and the 1 000-grain weights were 47.3,48.4,48.8 and 50.366 g respectively. [Conclusion] From early February to early May,early application of ＂Liduo＂ in wheat could obviously increase tillers,enhance the spike-formed rate and increase the spike numbers per 667m^2,while late application benefit to increase 1 000-grain weight.

关 键 词：植物生长调节剂 “立多” 小麦 产量结构因子 

分 类 号：S482.8[农业科学—农药学]