Characterization of the guamúchil seed Pithecellobium dulce (Roxb.) Benth

Abstract

The characterization studies in seeds are of interest and importance for any genetic improvement program of the low deciduous forest. To carry out this research, 34 localities from three states of the Mexican Republic were considered: Guerrero, Morelos and the State of Mexico, they were separated into groups which were: G. Dulce, Dulce, G. Amargo, Amargo, G. Simple, Simple and several in the latter find two localities that presented 5 different genotypes, 10 seeds were randomly selected per genotype. The objective was to characterize the seeds of guamúchil in different regions, to obtain information regarding this tree, as well as to generate trees with desirable characteristics; Measurements were carried out with a mitutoyo vernier for the length, width and thickness of the seed, the weight was determined with a precision balance. Analysis of variance, comparison of means, were performed to detect differences between genotypes. No significant differences were found in the variables. However, the genotypes that presented the highest value in the mean for the length was G. Dulce from Chilapa de Álvarez, Gro., While the width was from the Bitter genotype that was collected from Alpuyeca, Mor., In the thickness of found in the G. Dulce genotype from Tlapa, Gro., and the highest weight was of the Amargo genotype from the town of Zumpango del Río, Gro.