Genetic Variability and association of characters among twelve landraces of common bean (Phseolus vulgaris) in Taraba State

Common bean (Phaseolus vulgaris) is an important grain legume with considerable nutritional and economic value. However, its production in parts of Nigeria is constrained by limited information on the agronomic performance, genetic variability and adaptability of available landraces. This study evaluated the agronomic performance, genetic variability, heritability, genetic advance, character association, path coefficient relationships and multivariate diversity of twelve (12) common bean landrace accessions at Jalingo and Bali, Taraba State, Nigeria, during the 2025 cropping season. The experiment was conducted using a Randomized Complete Block Design (RCBD) with three replications. Data collected on germination, vegetative, phenological, pod and seed yield traits were subjected to Analysis of Variance (ANOVA), for each location and combined, mean were separated using Duncan's Multiple Range-Test (DMRT) at 5%. Genetic variability analysis, correlation, path coefficient and Principal Component Analysis (PCA). ANOVA revealed significant differences (P