Resumen

RODRIGUEZ RODRIGUEZ, Leixys; FERNANDEZ GRANDA, Lianne  y  TORRES MEDEROS, María de los Ángeles. Morphological characterization of accessions of Phaseolus vulgaris L. in the GeneBank of INIFAT. cultrop [online]. 2024, vol.45, n.2  Epub 01-Jun-2024. ISSN 1819-4087.

The common bean collection (Phaseolus vulgaris L.) from the Genebank of Institute for Fundamental Research in Tropical Agriculture “Alejandro de Humboldt” (INIFAT), has the potential to be used as genetic material in breeding programs for the crop, in the development of strategies for the conservation of local varieties, for confronting climate change, among other functions. The optimal exploitation of the genetic potential of this collection is only achieved through characterization. The following work aims to characterize the genetic variability of a sample of 35 accessions of common bean (Phaseolus vulgaris L.) through the use of 31 morphological descriptors. The selected sample presented less variability in terms of maturity and harvest times, also presented a significant correlation between the traits related to the architecture of the plant. Principal component analysis indicated that first two components explained 63.8 % of total variance. The type and size of grains have an important role in the grouping of the accessions. Several genotypes evaluated have potential as basic breeding lines.

Palabras clave : agronomic traits; germplasm; common beans.

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