不同密度下大豆茎部性状生长发育规律的研究  

Research on The Growth of Soybean Stem Characters in Different Densities

作　　者：杜吉到[1] 杜汝军 郑殿峰[1] 张晓艳[1] 梁喜龙[1] 冯乃杰[1] 丁希武[1] 张玉先[1] 

机构地区：[1]黑龙江八一农垦大学植物科技学院,大庆163319 [2]黑龙江省大庆市杜尔伯特自治县

出　　处：《黑龙江八一农垦大学学报》2006年第3期1-4,共4页journal of heilongjiang bayi agricultural university

基　　金：国家"十五"科技攻关项目(东北专项)<大豆产业现代化关键技术研究与示范>的一部分(2004BA907A26-0206)

摘　　要：通过对3种密度的大豆群体进行研究,探讨了不同密度下的大豆茎部几种主要性状的生长发育规律。试验结果表明:不同密度大豆群体不同生育时期株高与各茎节高呈S形曲线变化趋势,各茎节的长度、茎粗及茎重呈现“降升降”的趋势,单株茎粗与茎节重变化呈“先升后降”的趋势,单节茎粗与单节茎重随着群体密度的降低而增加。Three different density populations of soybean were tested to investigate the diversity of growth and development of several main soybean stem characters under different densities. The results showed that plant height and every nodosity height of different densities all could be described as the in different growth periods. S curve, length, diameter and weight of nodosity stem showed as “down-up-down”, stem diameter and stem weight of plants showed as “up-down”, diameter and weight of nodosity stem should increase with the reducing of population density.

关 键 词：大豆 密度 茎 生长发育规律 

分 类 号：S565.1[农业科学—作物学]