窄行稀条播对小麦干物质积累及运转的影响  

Study on Accumulation and Translation of Dry Matter in Winter Wheat under Narrow Row Sparse Drilling

作　　者：张凤洁[1] 郭欢[1] 冯变娥 乔俊芳 荀洁[1] 董琦[1] 王爱萍[1] 

机构地区：[1]山西农业大学农学院,山西太谷030801

出　　处：《山西农业科学》2014年第2期123-125,共3页Journal of Shanxi Agricultural Sciences

基　　金：山西省科技推广计划项目(2012071001-2);山西省科技攻关项目(20120311001-1)

摘　　要：通过窄行稀条播与常规条播2种栽培方式,对山农9801和山农9-1这2个小麦品种单株的干物质积累及运转规律进行了研究。结果表明,采用窄行稀条播方式能增加小麦的叶质量、茎鞘质量,提高花后小麦营养器官及各节间的干物质运转量、干物质运转率及转运干物质对籽粒的贡献率;窄行稀条播下,山农9801的干物质积累量多于山农9-1,但干物质转化量、转化率及贡献率均低于山农9-1。In this paper, with 2 wheat varieties of Shannong 9801 and Shannong 9-1 as the material, using narrow row sparse drilling technique and normal drilling seeding technique to research dry matter accumulation and translation. The results showed the leaf weight, stem and sheath weight of wheat were increased under narrow line sparse distribution, which improved dry matter remobilization quantity （ DMRQ ）, dry matter remobilization rate （ DMRR ）, dry matter contribution to grain （ DMCG ） in vegetative organs and intemode at filling stage of wheat. The dry matter accumulation of Shannong 9801 was greater than Shannong 9-1, while its DMRQ, DMRR and DMCG were lower than Shannong 9-1.In this paper, with 2 wheat varieties of Shannong 9801 and Shannong 9-1 as the material, using narrow row sparse drilling technique and normal drilling seeding technique to research dry matter accumulation and translation. The results showed the leaf weight, stem and sheath weight of wheat were increased under narrow line sparse distribution, which improved dry matter remobilization quantity （ DMRQ ）, dry matter remobilization rate （ DMRR ）, dry matter contribution to grain （ DMCG ） in vegetative organs and intemode at filling stage of wheat. The dry matter accumulation of Shannong 9801 was greater than Shannong 9-1, while its DMRQ, DMRR and DMCG were lower than Shannong 9-1.

关 键 词：窄行稀条播 小麦 干物质 积累 运转 

分 类 号：S512.1[农业科学—作物学]