Characterization of bean seeds from Ñäñho communities of Amealco, Querétaro
DOI:
https://doi.org/10.29312/remexca.v17i4.4017Keywords:
P. coccineus, P. vulgaris, chemical, morphologyAbstract
Beans are one of the main components of traditional Mexican gastronomy. Mexico is the center of origin, domestication, and diversification of Phaseolus vulgaris and P. coccineus. These are cultivated in the Ñäñho communities of Amealco, Querétaro, Mexico; however, their characteristics are unknown. The work aimed to determine inter and intraspecific seed diversity based on morphological characteristics and chemical composition. The study was conducted in 2024 at the Faculty of Natural Sciences of the Autonomous University of Querétaro. Twenty-one accessions (eight of P. coccineus and 13 of P. vulgaris) held in safekeeping at the Germplasm Bank-UAQ, which were collected in 2021 and 2022 in San Miguel Tlaxcaltepec, San Ildefonso and Santiago Mexquititlán, communities of the municipality of Amealco, Querétaro, were analyzed. Four quantitative morphological variables and 11 qualitative variables of each accession’s seeds were measured. In addition, chemical analysis was carried out, determining ash, moisture, crude protein, ethereal extract, crude fiber and nitrogen-free extract contents. Statistically significant differences were found in size, weight and protein contents between the two species. Intraspecific diversity was identified in the two species, mainly defined by seed color and size, as well as by percentages of ethereal extract and crude fiber. The Ñäñho communities of Amealco, Querétaro, present inter- and intraspecific diversity in both species, with a higher protein content in P. vulgaris than in P. coccineus.
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