Journal of Northern Agriculture ›› 2026, Vol. 54 ›› Issue (4): 10-23.doi: 10.12190/j.issn.2096-1197.2026.04.02

• Crop cultivation·Germplasm resources • Previous Articles     Next Articles

Analysis and evaluation of agronomic traits of Vigna angularis germplasm resources in northeast China

CUI Zhihui, KANG Zeran, WANG Xiaolei, LIU Yingchun, ZHOU Xuechao, HU Haibo, ZHANG Qingyan, WEI Yunshan   

  1. Chifeng Academy of Agricultural and Animal Husbandry Sciences,Chifeng 024031,China
  • Received:2025-07-28 Online:2026-08-20 Published:2026-10-09

Abstract: 【Objective】To analyze the agronomic traits of Vigna angularis germplasm resources in northeast China,providing a basis for genetic improvement and breeding of new V. angularis varieties.【Methods】Genetic diversity analysis,correlation analysis,cluster analysis,principal component analysis and comprehensive evaluation were conducted on nine agronomic traits of 274 V. angularis germplasm resources in northeast China,and the quality of excellent germplasm resources was analyzed.【Results】The coefficients of variation of the nine agronomic traits ranged from 10.66% to 44.90%,and the traits with relatively high coefficients of variation were yield per plant,number of pods per plant,and number of main stem branches(44.90%,38.09% and 37.49%,respectively);the genetic diversity indexes ranged from 1.85 to 2.13,with the highest genetic diversity index for hundred-seed weight(2.13);there were different degrees of correlation among the nine agronomic traits;among them,pod width was extremely significantly positively correlated with hundred-seed weight,and the number of pods per plant was extremely significantly positively correlated with yield per plant,with the coefficients of correlation of 0.685 and 0.677,respectively;cluster analysis classified the nine agronomic traits into four groups;principal component analysis showed that the cumulative contribution rate of the first four principal components was 76.960%. Among the top 20 germplasm resources based on comprehensive evaluation,185,200,105,201 and 184 were high-yield germplasm resources;200,105,106 and 184 had large-seed characteristics,which were suitable for breeding for seed appearance quality;105,234 and 216 belonged to multi-pod type germplasm resources. In terms of quality traits,germplasm resource 200 had a relatively high protein content(25.16 g/100 g).【Conclusion】Among the 274 V. angularis germplasm resources in northeast China,germplasm resource 184 has the characteristics of high yield and large seed,and germplasm resource 200 has the characteristics of high yield,large seed and high protein. Both are breeding materials with good comprehensive traits and can be used as excellent parents in genetic improvement and new variety breeding of V. angularis.

Key words: Vigna angularis, Germplasm resources, Agronomic traits, Quality traits

CLC Number: 

  • S521