摘要
不同类型大豆品种及杂种后代,在不同肥力条件下表现各异的适应性。瘠薄土壤条件下,植株高大繁茂、多分枝、进化程度低的为适应的生态型。肥力水平较高条件下,主茎发达、百粒重高、进化程度高的集约型品种表现适应。中等肥力水平下,株高适宜,有一定分枝能力和粒茎比较高者为适应生态类型。无论品种类型及生态条件如何,大豆经济产量与生物产量呈极显著正相关。根据本试验得出的规律,提出了移动生态育种的概念。
It is suggested that different types of soybeans and their progenies performed different
adaptabilities.Soybean with higher plant height,more Luxuriant growth and lower evolu-
tionary level adapts to impoverished soil.Soybean with well-developed main stem,greater
100-seed weight and higher evolutionary level adapts to fertile soil.Soybean with
suitable plant height,branching capability and higher seed-stem ratio,adapts to general soil
conditions.The economic yield has significant pasitive correlation with biomass yield for all
types of soybeans in different ecological conditions.Based on the results of this study,a shift-
ing ecological breeding concept is recommended.
基金
国家自然科学基金
关键词
大豆
生态条件
粒茎比
育种
soybean
ecological condition
seed-stem ratio
shifting ecological breeding
