Legume Research
Web of Science
  • Year: 2026
  • Volume: 49
  • Issue: 2

Genetic Variability, Correlation and Path Coefficient Analysis of Common Bean (Phaseolus vulgaris L.) Genotypes in the Priobia Steppe, Siberia

  • Author:
  • Nguyen Nam Thanh1,*, Galeev Rinat Raifovich2, Oksana Valerievna Parkina2, Zlata Valerievna Andreeva2, Bui Manh Hung3
  • Total Page Count: 7
  • Page Number: 228 to 234

1Institue of Agriculture and Resources, Vinh University, 182 Le Duan Street, Vinh City, Nghean-460000, Vietnam.

2Institute of Fundamental and Applied Agrobiotechnologies, Novosibirsk State Agrarian University, 160 Dobrolyubov, Novosibirsk630039, Russia.

3Faculty of Forestry, Vietnam National University of Forestry, Xuan Mai, Chuong My, Hanoi100000, Vietnam.

*Corresponding Author: Nguyen Nam Thanh, Institue of Agriculture and Resources, Vinh University, 182 Le Duan Street, Vinh City, Nghean-460000, Vietnam. Email: thanhnn@vinhuni.edu.vn

Abstract

Common bean (Phaseolus vulgaris L.) is an important leguminous vegetable crop but the lack of high yielding and stable varieties is the major constraint. Exploring genetic variability is essential for crop improvement programs. Considering this, the present study focused on assessing genetic variability and associations between yield and its contributing traits to enhance production efficiency.

A two year experiment was carried out at the experimental farm of the Novosibirsk State Agrarian University during the cropping season of 2023 and 2024 to find out the genetic variability parameters, path coefficient and correlation studies in twenty six common bean genotypes.

The results revealed high variability among the tested genotypes. The values of phenotypic coefficient of variation (PCV) were greater as compared to the genotypic coefficient of variation (GCV) for all the traits. High heritability along with GAM% (>20%) was observed for number of nodes per stem (NNS), number of pods per plant (NPP), number of seeds per pod (NSP), seed yield per plant (SYP), hundred seed weight (HSW) and pod width (PL). Seed yield per plant (SYP) had positive genotypic and phenotypic correlation with DF (rg = 0.34 and rp = 0.34), NPP (rg = 0.64 and rp = 0.75), HSW (rg = 0.62 and rp = 0.7) and PL (rg = 0.35 and rp = 0.4). Positive direct effect on seed yield per plant (SYP) was exhibited by traits viz., number of pods per plant (NPP), hundred seed weight (HSW) and days to 50% flowering (DF) in path coefficient analysis.

Keywords

Correlation, Genetic variability, Path analysis, Yield