不同结荚习性大豆各生育阶段干物质积累动态的研究  

作　　者：孙培乐[1] 宋兆华[1] 冯涛[1] 

机构地区：[1]黑龙江省农垦科学院,佳木斯154007

出　　处：《大豆科技》2009年第4期42-45,共4页Soybean Science & Technology

摘　　要：通过对不同结荚习性大豆品种各生育阶段干物质积累动态的研究表明：在生育期相近的品种中，无限型大豆的特点是：苗期根系发达，开花期较早，结荚快，开花结荚期长，干物质积累与产量形成的重要时期为R2-R5阶段；有限型及亚有限型大豆的特点是：开花较晚（尤其是有限型），开花的前中期结荚缓慢，干物质积累和产量形成的重要时期为R3-R6阶段，其中以R5-R6期为最重要。在高产栽培中．无限型品种应重点促进其初花后10～30d期间的生长发育，而有限及亚有限型品种则应重点促进其初花后20～40d期间的生长发育，这样会对提高大豆的产量起到最佳的效果。By studying on the dynamic dry matter accumulation in the different growth stages of soybean podding propensity, the results showed： in different soybean varieties which the growth stages was similar, the indeterminate type soybean was characterized by： seedliug root development, earlier flowering, podding fast, long period of bloom and pod, dry matter accumulation and yield formation of an important period was the R2 - R5 stage. The growth habit characteristics of determinate and sub - indeterminate soybean were later flowering （especially determinate soybean）, slowly podding in the early and middle stage of flowering. The important stage was R3 - R6 for dry matter and quantities accumulation, and the especially important stage was R5 - R6. In the high yield cultivation period, it should promote its growth .after 10 - 30 d in early flowering of indeterminate growth habit soybean, and it should promote its growth after 20 - 40 d in early flowering of determinate and sub - indeterminate growth habit soybean. Thus, it could provide the most effective effects for improving soybean yields.

关 键 词：大豆 结荚习性 生育阶段 干物质积累 动态 

分 类 号：S351.1[农业科学—作物栽培与耕作技术]