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Analysis of Genetic Divergence in Tomato (Lycopersicon esculentum Mill.)


Affiliations
1 Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Horticultural Research Station, Kandaghat, District Solan (Himachal Pradesh) 173 215, India
 

Non-hierarchical analysis conducted on 60 genotypes of tomato (Lycopersicon esculentum Mill.) grouped the genotypes into 10 clusters. Maximum divergence within a cluster was exhibited by the cluster VIH (1.531), closely followed by cluster III (1.528) and cluster V (1.460), whereas, cluster VIII and cluster II were the most divergent from each other followed by cluster VII and cluster VIII. Promising genotypes selected were FT-5, LBR-10-2, THS-1-1, THS-2-2, T-99-1-2 and T-99-2-3 for yield per plant, fruit size index, pericarp thickness and plant height, whereas, W 55, Campbell and EC-123018 were found to be the best for average fruit weight. However, genotypes EC-170785 and Red cherry may be used to improve the number of fruits per plant and earliness.

Keywords

Cluster Analysis, Tomato, Genetic Divergence, Lycopersicon esculentum.
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  • Analysis of Genetic Divergence in Tomato (Lycopersicon esculentum Mill.)

Abstract Views: 321  |  PDF Views: 143

Authors

H. R. Sharma
Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Horticultural Research Station, Kandaghat, District Solan (Himachal Pradesh) 173 215, India
Deepa Sharma
Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Horticultural Research Station, Kandaghat, District Solan (Himachal Pradesh) 173 215, India
A. K. Thakur
Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Horticultural Research Station, Kandaghat, District Solan (Himachal Pradesh) 173 215, India

Abstract


Non-hierarchical analysis conducted on 60 genotypes of tomato (Lycopersicon esculentum Mill.) grouped the genotypes into 10 clusters. Maximum divergence within a cluster was exhibited by the cluster VIH (1.531), closely followed by cluster III (1.528) and cluster V (1.460), whereas, cluster VIII and cluster II were the most divergent from each other followed by cluster VII and cluster VIII. Promising genotypes selected were FT-5, LBR-10-2, THS-1-1, THS-2-2, T-99-1-2 and T-99-2-3 for yield per plant, fruit size index, pericarp thickness and plant height, whereas, W 55, Campbell and EC-123018 were found to be the best for average fruit weight. However, genotypes EC-170785 and Red cherry may be used to improve the number of fruits per plant and earliness.

Keywords


Cluster Analysis, Tomato, Genetic Divergence, Lycopersicon esculentum.