Morphological and dasometric characterization of Mimosa trianae and Cassia moschata from AGROSAVIA collection

Garzón, Sandra L Castañeda; Barragán, Jessica Moreno; Cárdenas, Jorge H Argüelles; Tamayo, Hebert Camargo; Peláez, Jhon J Zuluaga

Morphological and dasometric characterization of Mimosa trianae and Cassia moschata from AGROSAVIA collection

2021

Garzón, Sandra L Castañeda | Barragán, Jessica Moreno | Cárdenas, Jorge H Argüelles | Tamayo, Hebert Camargo | Peláez, Jhon J Zuluaga

Cañafistol (Cassia moschata Kunth) and yopo (Mimosa trianae Benth.) are important native species in the Colombian Orinoco Region, however, their behavior in a monoculture system and genetic variability are unknown. In a 7-year-old plantation located at La Libertad Research Center (Villavicencio, Meta), the phenotypic variability of 108 M. trianae trees and 52 C. moschata trees was evaluated using 37 quantitative and qualitative plant descriptors (crown, stem, leaf). Principal component analysis and multiple correspondence were used for quantitative and qualitative variables respectively, in order to reduce the dimensionality of the data, followed by cluster analysis using the WARD algorithm. C. moschata had a smaller size and a less vigorous crown, in comparison to M. trianae which stands out for its greater number of branches, crown diameter, wood volume and annual average increase of the total height and DBH. The cluster analysis allowed classifying the individuals of C. moschata and M. trianae into six and five groups retaining 99.92% and 99.58% of the original variability respectively. The variables trunk volume, crown diameter, number of branches and total height are the most important for the selection of timber trees and use in agroforestry systems. In M. trianae the number of leaflets per leaf and the size of the leaves are equally relevant variables for the selection of shade trees.

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