Morphological and Chemical Characterization of Psidium Species

Abstract

The present study was conducted to estimate genetic relationship among 20 genotypes of Psidium guajava and two species viz., P friedrichsthalianum Ndz. and P. catleianum Sabine, by morphological characterization. Out of 16 morphological characters studied, only inflorescence type did not show any variation, while the remaining traits showed variability to considerable extent. Morphological data on different genotypes were used to calculate similarity matrix which ranged from 0.06 to 0.50.and based on this cluster analysis was done using UPGMA. The genetic variation among genotypes was high enough to divide them into two major clusters. Cluster I consisted of ‘Chakaiya Rehmannagar’, ‘Gutaniwala’, ‘Super Max Ruby’, and ‘Spear Acid’, whereas cluster II consisted of the rest of 18 genotypes.