Author(s): KS Solanki, KM Karetha, PJ Rathod and KR Zala

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.

DOI: 10.33545/26174693.2024.v8.i6f.1353