Establishment of Candidate Core Collection in Hebei Adzuki Bean Germplasm Resources
385 adzuki bean germplasm resources were selected as material. Based on 13 agronomic traits, 5 sampling strategies were used, which consisted of 1 stratification methods, 2 determinations of sampling number methods and 2 selections of individual methods. The criteria against whole collection included mean genetic distance, coincidence of traits, mean CV of quantitative traits, mean Shannon index. The results indicated that selection based on clustering was better than random selection, and proportion strategy was better than square root strategy in determination of sampling number. Finally, an optimal strategy was set by stratified according geographical distribution, determination the sampling number with proportion strategy, and selected sample within clusters. Using this method, a pre-core collection of Hebei adzuki bean germplasm with a total of 79 accessions was established. The pre-core carried 100% phenotypic genetic diversity of the whole collection.
国家科技期刊平台
NSTL
万方数据
维普
