Vol. 16 No. 2
Studies on combining ability, gene action and heterotic expression of tomato for various leaf and fruit pigments
Author(s): K. V. MANJUNATH, S. BASFORE, S. SIKDER AND R. SAHA CHOWDHURY
Abstract: Genetical effects of eleven parents were assessed by deploying Line (7) × Tester (4) model. Choice of materials was justified with elucidation of non-significant replication mean sum of squares and significant effects due to lines, testers and hybrids. Among parents Arka Saurabh, Arka Vikas, Berika and Alisa Craig and amongst hybrids Arka Vikas × Berika considered best with insight of their per se performance and combining ability effects. Non-additive mode of inheritance was found for studied characters. Greater influence of lines concerning to total variance for leaf pigment, testers towards immature fruit pigment and for ripe fruit pigments was equally affected by lines and their interaction with tester. On heterosis components basis, Arka Saurabh × Pusa Ruby found to be supreme performing for leaf chlorophyll pigments. Similarly, Arka Alok × Patharkutchi for immature fruit chlorophyll pigments and Arka Vikas × Berika for lycopene and β-carotene content of firm ripe fruits.
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