Heredabilidad genética de caracteres agromorfológicos con potencial biotecnológico en leguminosas, frente al cambio climático

Abstract

Abstract:The research was developed with the objective of estimating the heritability in the broad sense of bean species (Vigna spp., Phaseolus vulgaris and Phaseolus lunatus) of 12 accessions of the germplasm bank of the UTPL, by evaluating 33 morphological characters and 17 phenological stages, both under greenhouse and open field, subjecting the data to multivariate analysis as clusters and principal component analysis, resulting in a high variability in the agromorphological characters; highlighting the flowers, pods and seeds, and notoriously differentiating the bean species. Regarding the phenological characterization, the accessions of P. vulgaris were characterized by being earlier, in contrast to Vigna spp. and P. lunatus plants, which were found to be later. In general, bean materials show high heritability (H2 = 0.7-1.0), where bean length, bean width and 100-seed weight have low and medium heritability values (6 to 64%), and in the case of Vigna spp. accessions, most of the characters show medium heritability (H2 = 0.3-0.7).