PJB-2023-352
MORPHOLOGICAL AND BIOCHEMICAL CHARACTERIZATION OF COMMON BEAN (Phaseolus vulgaris L.) FROM AZAD KASHMIR AND NORTHERN AREAS OF PAKISTAN
AHMAD MUHAMMAD YOUNIS
Abstract
Common bean is an utmost essential crop among the major legumes. A large number of landraces of this crop is still being grown in different regions of the world. These landraces show good adaptation to local climatic conditions and having resistance to diseases and pests. Such landraces of beans maintain high yield stability under a low input farming system. The aim of this research work was to analyze this valuable germplasm on the basis of morphological and biochemical characterization by using ninety six (96) landraces collected from Azad Kashmir and Northern areas of Pakistan. Correlation coefficient for morphological traits revealed that seed yield had maximum positive and highly significant correlation with seed weight (0.950**). Number of seed per pod exhibited positive and highly significant correlation with pod length (0.950**), seed weight (0.925**) and yield (0.925**) respectively. A highly significant correlation was found between pod width and seed weight and yield (0.611**). Yield was correlated with leaf width (0.252*) and leaf length (0.227*). Based on average linkage distance between genotypes, computed from morphological data, 19 genotypes have shown maximum variability. Cluster based on biochemical analysis depicted that maximum variability was shown by 27 genotypes. The antioxidant activity has shown maximum positive and highly significant correlation with moisture content (.733**), ascorbic acid (.425**), protein content (.878**) and crude fiber (.191**). These results suggest that common bean landraces are extremely valuable genetic resources to explicate the correlation among various morphological and biochemical traits.
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