YANG Mei
Crop Research Institute, Sichuan Academy of Agricultural Sciences (Sichuan Provincial Germplasm Resources Center)ZHONG Xiaojuan
Crop Research Institute,Sichuan Academy of Agricultural Sciences Sichuan Provincial Germplasm Resources Center/Environment-friendly Crop Germplasm Innovation and Genetic Improvement Key Laboratory of Sichuan ProvinceFAN Yuanfang
Crop Research Institute,Sichuan Academy of Agricultural Sciences Sichuan Provincial Germplasm Resources Center/Environment-friendly Crop Germplasm Innovation and Genetic Improvement Key Laboratory of Sichuan ProvinceLI Xin
Sichuan Seed StationWANG Xianshu
Crop Research Institute,Sichuan Academy of Agricultural Sciences Sichuan Provincial Germplasm Resources Center/Environment-friendly Crop Germplasm Innovation and Genetic Improvement Key Laboratory of Sichuan ProvinceXIANG Chao
Crop Research Institute,Sichuan Academy of Agricultural Sciences Sichuan Provincial Germplasm Resources Center/Environment-friendly Crop Germplasm Innovation and Genetic Improvement Key Laboratory of Sichuan Province1.Crop Research Institute, Sichuan Academy of Agricultural Sciences (Sichuan Provincial Germplasm Resources Center);2.Crop Research Institute,Sichuan Academy of Agricultural Sciences Sichuan Provincial Germplasm Resources Center/Environment-friendly Crop Germplasm Innovation and Genetic Improvement Key Laboratory of Sichuan Province;3.Sichuan Seed Station
The key project of vegetable breeding of Sichuan "Vegetable faba bean breeding new material creation and breakthrough new variety breeding " (2021YFYZ0022); National Modern Agricultural Industry Technology System Project "Sichuan innovation team of bean and miscellaneous grains" (SCCXTD-2022-20); The Third National Campaign of Crop Germplasm Census and Collection (111821301354052034); Sichuan Academy of Agricultural Sciences Project "1+9 Unveiling the List" (1+9KJGG001); Sichuan Provincial Finance Department (1+3 ZYGG001)
Sichuan was one of the provinces with rich genetic diversity of faba bean resources. In this paper, 82 Sichuan faba bean local germplasm resources were used as the research object. The diversity level of Sichuan faba bean local resources was identified and evaluated by genetic diversity index, variation coefficient, correlation analysis, cluster analysis and principal component analysis, and excellent germplasm resources were screened. The results showed that the genetic diversity of plant height, 100-seed weight, shape of the leaflets, color of the fresh stem, resistance of chocolate spot and resistance to ascochyta blight of faba bean germplasm resources was rich. The variation coefficient 11 agronomic traits except pod width and growth days ranged from 11.70 % to 38.39 %, and the variation coefficient of seed per pod, number of pod nodes, pods per plant and seeds per plant was larger. The correlation analysis results showed that plant height, 100-seed weight, number of effective branches, number of pod nodes, pods per plant and seeds per plant were significantly or extremely significantly positively correlated with seed weight per plant. Cluster analysis clustered 82 faba bean germplasm resources into four categories, and class I and IV yield-related traits performed better. Five principal component factors with a cumulative percentage of 79.858 % were extracted by principal component analysis. The effective branch number, number of pod nodes and pods per plant contributed greatly to PCA1, which were the key agronomic traits for excellent resource evaluation. Seven germplasm resources with a weighted score of principal component factor > 1 were selected as excellent germplasm. The results of this study reflected the comprehensive performance of faba bean local germplasm resources in Sichuan, and provided data support for the protection, excavation and utilization of excellent resources.