Life Sciences Research

(An International Journal)


Pages: 33-40

Date of Publication: 30-Nov--0001

Evaluation of advanced breeding lines of tomato for fruit quality based on morpho-physiological and biochemical traits

Author: K. Sana Tabassum, S. Sasipriya, B. M. Dushyantha Kumar, A. Y. Hugar, Nagarajappa Adivappar

Category: Research Article

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Tomato is one of the most important vegetable crops in the world considering its production potential and consumption rate. It serves as an essential source of important nutrients like vitamins C and K, antioxidants, and lycopene, contributing to a balanced and healthy diet. The fruit yield and other yield contributing traits in tomatoes are governed by polygenes and are quantitatively inherited akin to other crops. A study was conducted on tomato (Solanum lycopersicum L.) during Kharif 2020 at the Zonal Agricultural Horticultural Research Station, KSNUAHS, Shivamogga, to assess genetic variability and diversity and to identify superior segregants for shelf life and yield among 40 advanced breeding lines derived from a cross between Red Ball (More shelf life) × Arka Abha (High yield). Out of 16 characters studied, lycopene content, shelf life, pericarp thickness, pulp content, fruit weight, and five other yield contributing traits were positively skewed and were platykurtic, indicating the complementary form of epistasis. A relatively high range of PCV and GCV were observed for almost all the traits considered under study. The lines were clustered into 9 classes based on genetic divergence analysis. Two superior lines, G-32 and G-29 were selected for higher yield and increased shelf life.

Keywords: advanced breeding lines, genetic divergence, lycopene content, shelf life, tomato