冬小麦分阶段化学调控技术的研究  

Studies on the Techniques of Chemical Regulation by Growth Phase in Winter Wheat Plants

作　　者：李建民[1] 于运华[1] 

机构地区：[1]中国农业大学,北京100094

出　　处：《麦类作物学报》2000年第4期37-41,共5页Journal of Triticeae Crops

基　　金：国家"九五"重中之重科技攻关项目部分内容! (项目编号 :95 -0 0 1-0 2 -91)

摘　　要：根据器官建成和产量形成的规律 ,对小麦实行了分阶段化学调控研究。结果表明 ,壮丰安拌种能显著增加单株分蘖数和次生根数 ,有效控制拔节前生长叶片的长度和宽度 ;拔节前喷施壮丰安能显著抑制基部节间的伸长 ,增加每穗粒数 ;抽穗开花期喷施增粒增重剂有利于千粒重的提高。与大穗型品种相比 。According to the laws of the morphogenesis and the yield formation, the experiments of chemical regulation by growth phase were carried out in field grown winter wheat plants. The main results showed that: firstly, seed dressing with growth regulator ZhuangFengAn(ZhFA) could increase the tiller number and nodal root number per plant, and decrease the length and width of leaf blades emerged before stem elongation stage(SES); Secondary, spraying ZhFA just before SES could shorten the basal three internodes and increase the grain number per ear. Thirdly, spraying growth regulator ZengLiZengZhongJi agent for increasing numbers and weight of grains could increase the 1000 grain weight; And finally, as compared with the large ear variety 9538, the many ear variety Wenmai 4 was more suitable for chemical regulating techniques.

关 键 词：冬小麦 化学调控 生长调节剂 生育阶段 

分 类 号：S512.106.2[农业科学—作物学]