南京农业大学学报2011，Vol.34Issue(3)：7-12,6.
吉林省不同年代大豆品种植株地上器官生物量的变化
Changes of biomass above-ground organs of soybean cultivars with year of release in Jilin Province
摘要
Abstract
In order to understand the changes of organ biomass of above-ground parts of plant and the relations with kernels yield during the genetic improvement,twenty soybean cultivars released from 1923 to 2004 were planted under the same conditions. The changes of kernels yield,harvest index( HI)and organ biomass of above-ground parts including stems,leaves and petioles of soybean were investigated. The results indicated that genetic improvement enhanced kernels yield and biomass at R4 stage (pod stage )significantly,while HI increased slightly. The increase of biomass improved kernels yield and had significantly positive correlation with it. According to the regression equation,the biomass of stems,leaves,petioles and pods increased by 19.7％ ,36.1％ ,43.0％and 23.0％, respectively, and leaves and petioles showed most increase. The biomass of the upper, central, and lower of canopy at R4 stage increased by 34.4％ ,55.1％ and 18.9％ ,respectively,with central layers most significantly,upper layers less and lower layers least significantly. The biomass of leaves in central and upper layers increased by 58.3％ ,48.3％ respectively, and the biomass of petioles in central and upper layers increased by 63.6％ ,59.4％ respectively. Both of them had significantly positive correlation with kernels yield. The biomass of leaves and petioles in central and upper layers could be considered as the selection index of high-yield varieties.关键词
大豆/遗传改良/产量/生物量/叶片Key words
soybean/ genetic improvement/ yield/ biomass/ leaf分类
农业科技引用本文复制引用
徐仲伟,徐克章,张治安,李大勇,孙苗苗..吉林省不同年代大豆品种植株地上器官生物量的变化[J].南京农业大学学报,2011,34(3):7-12,6.基金项目
国家自然科学基金项目(30871547) （30871547）
吉林农业大学科研启动基金(2009028) （2009028）
