COMPARATIVE STUDY OF COMPONENT AND GRAPHICAL ANALYSIS STUDIES FOR VARIOUS YIELD AND QUALITY TRAITS IN TOMATO (Lycopersicon esculentum Mill)

MANOJ KUMAR¹*, B.S. DUDI^2
1Department of Agriculture and Farmer Welfare, Haryana India
²Department of Vegetable Science, COA, Chaudhary Charan Singh Haryana Agricultural University, Hisar, 125004, Haryana
* Corresponding Author : drvermamanoj@gmail.com

Received : 01-03-2018     Accepted : 28-03-2018     Published : 30-03-2018
Volume : 10     Issue : 6       Pages : 5635 - 5641
Int J Agr Sci 10.6 (2018):5635-5641

Keywords : Diallel, gene action, tomato, Inheritance, yield, quality
Academic Editor : Brajraj Singh Kasana, El-sherbeny Ghada Abd Allah
Conflict of Interest : None declared
Acknowledgements/Funding : Author thankful to Department of Vegetable Science, Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana 125004. Author express gratitude to Dr. Y.S. Malik, Professor (Retd.), Department of Vegetable Scienc.Author thankful to Dr. S.S. Dhanda, professor (retd) plant breeding, Dr. B.P.S. Malik, Professor (retd), Department of Plant breeding, Pulse section and Dr. R.K. Jain, Department of Biotechnology and molecular biology, the members of my advisory committee.
Author Contribution : All author equally contributed

The study in a diallel fashion involving twelve parents and their sixty-six cross combinations was conducted at Vegetable Research farm of CCS HAU, Hisar during January to May, 2004. Observations were recorded on twenty-three yield and quality traits. The study revealed significant genotype differences for all characters except juice: pulp ratio and seed: pulp ratio. Significant variances due to general combining ability, and specific combining ability were observed for most of the characters. These estimates suggested the importance of both additive and non-additive gene action for the control of the characters investigated. Over dominance was observed for all the traits except number of seeds, total carotenoides and lycopene content for which partial dominance and complete dominance was observed respectively. The preponderance of additive and non -additive gene actions for yield, its components and quality parameters greatly suggested for both selection and heterosis breeding for the improvement of tomato crop.

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