Determination of trait associations using path coefficient analysis in Bambara groundnut (Vigna subterranea [L.] Verdc) landraces
Bambara groundnut is considered a promising underutilized crop with potential to contribute to future food security. Understanding the associations among agronomic traits provides insight into their potential exploitation for yieldimprovement through agronomic and breeding interventions. The objecti...
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| Autores principales: | , , |
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| Formato: | Artículo revista |
| Lenguaje: | Inglés |
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Facultad de Ciencias Agropecuarias
2025
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| Acceso en línea: | https://revistas.unc.edu.ar/index.php/agris/article/view/44819 |
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| Sumario: | Bambara groundnut is considered a promising underutilized crop with potential to contribute to future food security. Understanding the associations among agronomic traits provides insight into their potential exploitation for yieldimprovement through agronomic and breeding interventions. The objective of thisresearch was to assess the association between grain yield and its contributingtraits using path coefficient analysis. The experiment was conducted in a randomised complete block design (RCBD) with three replications. Pearson correlation analysis showed a highly significant association between days to 50 % flowering and plant height (r = 0.85**). Path coefficient analysis revealed that plant height (0.113), number of pods/plant (0.400158), number of seeds/pod (0.041182), and 100-seed weight/plot (0.016093) had a positive direct effect on seed yield. Leaf area (-0.10851) and days to 50 % flowering (-0.21159) had a negative direct effect on seed yield. Among these traits, the number of pods/plant had the highest positive effect, while days to 50 % flowering had thehighest negative effect. The present study showed that characters including plant height and number of pods per plant need to be considered for indirect selection for improving seed yield for Bambara groundnut improvement.
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