Genetic Divergence for Yield and Yield Attributes in Bitter Gourd (Momordica charantia L.)

Author: Sachin Bhati, Satya Prakash, Vipin Kumar, Deepak Kumar, Bijendra Singh, Manoj Kumar Singh, Vishal Gangwar and Avdhesh Kumar

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Abstract

Twenty diverse genotypes were evaluated at Horticulture research centre of SVP university of Agriculture and Technology, Meerut during spring season, 2022. The experiment was laid out in Randomized block design with three replications. The analysis of variance revealed significant among all the genotypes for all the characters under study. Mahalanobis D2 statistics revealed that a considerable genetic diversity was found among genotypes. Twenty genotypes of bitter gourd were formed in five clusters. The cluster I comprised highest 13 genotypes, Cluster II comprised 3 genotypes, Cluster V comprised 2 genotypes, cluster III and cluster IV comprised 1 genotype each respectively. The maximum intra-cluster distance was recorded in cluster II, cluster V, cluster I, cluster III and cluster IV with minimum intra-cluster distance, suggested that the genotypes of cluster II are more heterogeneous whereas, genotype of cluster II are comparatively homogenous based on intra-cluster distance. The maximum inter-cluster distance was recorded in cluster IV and cluster III whereas, the minimum inter-cluster distance was observed in cluster II and cluster I.

Keywords

Genetic Diversity, Bitter gourd, Yield and Cluster analysis

Conclusion

Mahalanobis D2 statistics on genetic divergence showed that a significant amount of genetic diversity was observed. There are five separate genetic clusters formed from 20 genotypes. The cluster I (13 genotype) were the maximum number of genotype and minimum in cluster III and cluster IV (1 genotype) respectively. Based on the D2 value in respect to the values for the distances between and within clusters. Cluster II had the highest intra-cluster distance, which indicates that its genotype is more heterogeneous than cluster II's genotype, which is comparatively homogeneous based on intra-cluster distance. Cluster II was followed by cluster V, cluster I, cluster III, and cluster IV with intra-cluster distance. Clusters IV and III had the greatest inter-cluster distances that were seen. The smallest inter cluster distance, however, was found in clusters II and I. As can be seen from the modest variance of D2 values, the genotype of the cluster does not differ greatly with respect to their relative genetics.

References

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How to cite this article

Sachin Bhati, Satya Prakash, Vipin Kumar, Deepak Kumar, Bijendra Singh, Manoj Kumar Singh, Vishal Gangwar and Avdhesh Kumar (2023). Genetic Divergence for Yield and Yield Attributes in Bitter Gourd (Momordica charantia L.). Biological Forum – An International Journal, 15(8a): 104-109.