Morphological characterization of pigeonpea genotypes using DUS descriptors
Characterization of 80 pigeonpea genotypes using 17 morphological traits was done at different stages of plant growth. The traits stem colour, pod constriction and pod pubescence were monomorphic. Five traits viz., plant growth habit, leaf shape, pod length, number of seeds per pod and seed colour pattern were dimorphic. Seven traits viz., plant branching pattern, time of flowering, colour of base of petal, pod colour, plant height, seed shape and seed size were trimorphic. The trait pattern of streaks on standard petal was tetramorphic. The accessions used in this study exhibited five different seed colours and it was dominated by brown seed colour while the frequency of accessions with other colours was very low. Phenotypic diversity in the studied collection proves it to be suitable for developing superior varieties with prefarable features. The pigeonpea genotypes were subjected to cluster analysis which grouped them into five clusters. Cluster II was big with 39 genotypes and cluster IV was small with two genotypes. Cluster I consisted of 10 genotypes and cluster III comprised of 15 genotypes. Thirteen genotypes were placed in cluster V. The pigeonpea genotypes ICPL 11255 and ICPL 20338 are very early, thus can be utilized in future breeding programmes for development of early maturing varieties.
Keywords: Pigeonpea, Characterization, Diversity, Cluster.
Morphological characterization of pigeonpea genotypes using DUS descriptors. 2023. Electronic Journal of Plant Breeding, 14 2, 448-457. Retrieved from https://ejplantbreeding.org/index.php/EJPB/article/view/4706
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