摘要
利用具有明显差异的3种不同进化类型的大豆,采用双列杂交方式配制类型内及类型间共15个杂交组合。结果表明,不同类型大豆主要农艺性状的一般配合力明显不同。秣食豆在株高、节间长、分枝数、单株荚数和单株粒数等性状上具有增效作用;在粒茎比和收获指数等性状上具有减效作用。亚有限类型大豆则有降低株高和节间长度,提高粒茎比和收获指数的效应。本试验发现,不同类型组合植株形态性状的育种值及总配合力效应值存在明显差异。随着双亲进化程度的提高,杂种后代粒茎比和收获指数等性状的均值、育种值和总配合力效应值呈递增趋势;株高、节间长及分枝数等性状的均值、育种值及总配合力效应值呈递减趋势。不同类型组合,主要产量性状的均值、特殊配合力效应值和总配合力效应值存在明显差异。
15 crosses were made among and within three obviously different types of soybeans by diallel crosses. The combining abilities for different types of soybean and their progenies were studied. The results suggested that different types of soybean had significantly different general combining abilities on the main agronomic characters. Semicuhivated soybean parents had promoting effect on plant height, length of inter-nodes, number of branches, number of pods per plant, seeds number per plant and had reducing effect on the seed-stem ratio and harvest index. Semidetermi-nate soybean had reducing effect on plant height, length of inter-nodes, and promoting effect on seed-stem ratio.It was observed that different types of crosses had significantly different breeding value and total combining abilities on the morphological characters. As the two parents of a cross evolving from semicuhivated to cultivated type, the mean value,breeding value, and total combining abilities of seed-stem ratio, harvest index and other characters of the progenies denoted increasing tendency simutaneously, but those of plant height, number of branches, length of inter-nodes and other characters had decreasing tendency. Different types of crosses had significantly different mean value, special combining abilities and total combining abilities on the yield characters.
出处
《作物学报》
CAS
CSCD
北大核心
1994年第4期481-488,共8页
Acta Agronomica Sinica
基金
国家自然科学基金资助项目
关键词
配合力
农艺性状
大豆
杂种后代
Combining ability, Semicultivated soybean, Agronomic characters
