Diversity in pigment evaluation of different genotypes of Adenium obesum

Abstract

This study examines pigment diversity indices in eleven genotypes of Adenium obesum, focusing on anthocyanin, carotenoids, and chlorophyll. Chlorophyll shown the highest diversity with a dominance index of 0.09272, Simpson's index of 0.9073, and Shannon's index of 2.388. It also demonstrates high evenness (0.9898) and equitability (0.9957), indicating a balanced distribution. Carotenoids, though fewer in number, exhibit significant diversity with a Menhinick index of 1.78 and Fisher's alpha index of 5.174. In contrast, anthocyanin, despite of its major changes in content (1.47 to 64.14mg/100g), It showed the lowest diversity and evenness. These findings also suggested that the genetic variability in pigment biosynthesis in adenium of eleven genotypes and that can provides opportunities for a breeder to enhance the ornamental and aesthetic chacter choosen in Adenium obesum spp.