Analysis of variability and genetic divergence for seed yield in coriander (Coriandrum sativum L.)

Abstract

Thirty-seven genotypes of coriander including six check varieties were analyzed for variability, correlation, path coefficients, and genetic divergence. Genotypes were grown in RBD with three replications and observations were recorded for 13 different quantitative traits. Secondary branches per plant and total oil content confirmed high values of GCV and PCV. Seeds per umbel, test weight, and total oil content exhibited high heritability along with high GA (% of mean). Both genotypically and phenotypically, seed yield per plant exhibited a positive and significant association with umbels per plant, umbellates per umbel, test weight, and harvest index. On seed yield per plant, umbels per plant reported the highest positive direct effect. Genetic diversity analysis grouped the 37 coriander genotypes into 6 different clusters with the maximum inter-cluster distance seen between clusters III and VI. Among the thirteen traits, test weight contributed largely to the total genetic divergence.

Assessment of Phenotypic Diversity among Ethiopian Coriander Accessions (Coriandrum sativum) at Kulumsa, Southeastern Ethiopia

“…The study of genetic and phenotypic diversity in the gene pool has been carried out to contribute to promoting better recombination by selecting parents with maximum genetic differences, which are generally suitable for genetic improvement in crops (Arunachalam, 1981;Desalegn et al, 2019). Coriander is a highly cross-pollinated crop that is best enhanced by mass or recurrent selection (Moharana et al, 2023). However, limited studies have been reported on agronomic practices, evaluation, variability, heritability, genetic advance, correlation and path analysis, and genotypic diversity analysis among Ethiopian coriander accessions (Beemnet et al, 2013;Geremew et al, 2015;Geremew et al, 2016;Beemnet, 2018;Gizaw et al, 2023).…”