Genetic Variablity of Korerima [Aframomum corrorima (Braun) P. C. M. Jansen] Genotypes for Morphologial Traits in Tepi, Ethiopia

Abstract

Genetic variability study generates relevant information on the possibility of genetic improvement of crop for yield and quality attributes. This study was conducted to assess the genetic variations among genotypes. Twenty five korerima genotypes were evaluated for17 agro morphology characters in a simple lattice designs in Tepi National Spices Research Centre in 2016. Analysis of variance results revealed the presence of significant differences among genotypes for all characters. Moreover, the genotypes had dry capsule and pure seed yields ranged from 203.6 to 921.83 and 36.33 to 170.5 kg ha-¹, respectively. Most of the characters had low Phenotypic (PCV) and genotypic (GCV) coefficient of variations, heritability (H²) and genetic advance (GAM) except number of capsule bearing sucker per plant, fresh capsule length, dry capsule diameter, dry capsule length,  dry capsule yield in kg ha^-1 pure seed yield, and number of seed per capsule had high values. Therefore, selection of genotypes for the mentioned characters could be used as simultaneous selection of genotypes for seed and dry capsule yield..

Keywords: Aframomum corrorima, Korerima, Variability, Heritability,  Genetic Advance,  Dry capsule yield,