Assessment of genetic divergence in Chilli (Capsicum annuum L.) genotypes
A K M Mahmudul Huque2
M Kamal Hossain1
1. Plant Breeding and Crop Improvement Laboratory, Department of Botany, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh
2. Plant Molecular Genetics Laboratory, Division of Life Sciences, Korea University, Seoul 136-701, Republic of Korea
Plant Gene and Trait, 2015, Vol. 6, No. 3 doi: 10.5376/pgt.2015.06.0003
Received: 09 Feb., 2015 Accepted: 17 Apr., 2015 Published: 04 May, 2015
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Preferred citation for this article:
Hasan et al., 2015, Assessment of genetic divergence in Chilli (Capsicum annuum L.) genotypes, Plant Gene and Trait, Vol.6, No.3 1-5 (doi: 10.5376/pgt.2015.06.0003)
Thirteen genotypes of chilli (Capsicum annuum L.) were investigated to understand the extent of genetic diversity through 6 yield attributing characters. Genetic diversity in chilli genotypes based on six characters was estimated using Mahalanobis’s D2 statistics. The genotypes were grouped into five different clusters by non-hierarchical clustering. The cluster I had the maximum number (5) of genotypes while cluster IV and V each contained only one genotype. The highest inter-cluster distance was observed between cluster I and IV (24.483) and the lowest inter-cluster distance was observed between the clusters II and V (11.633). The results indicated that fruits/plant (35.8%) contributed maximum to the total divergence followed by fruit length (21.6%) and yield/plant (21.1%). Cluster IV produced highest mean for fruit weight (4.48), fruits/plant (149.90) and yield/plant (676.03). Cluster V produced highest mean for fruit length (10.23), pedicel length (4.94) and fruit diameter (10.36). Cluster I and III produced maximum lowest mean for almost all characters. Therefore, genotypes belonging to the cluster IV and V may be used as potential parents for future hybridization programme to develop superior Chilli variety with desired traits.
Chilli; Genetic divergence; Cluster analysis; D2 statistics