Expression of Heterosis and Combining Abilities (Gca & Sca) in Inter-Specific Crosses of Tomato (Lycopersicon esculentum Mill. syn. Solanum lycopersicum L.)
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Abstract
Interspecific crosses among wild and cultivated lines of
tomato revealed that wild line EC520061 was the best
combiner for plant height, number of primary branches
and pericarp thickness, EC528372 for the days to 50%
flowering, seeds/fruit and number of locules, EC521080
for maximum fruit set (%) and fruits/plant, EC520049
for the total soluble solids and yield/plant. High specific
combining ability coupled with high heterosis were
recorded in cross combinations, Hisar Anmole x
EC520061 for plant height and primary branches; Kashi
Vishesh x EC521080, Punjab Chhuhara x EC521080 and
Kashi Anupam x EC528372 for fruits/plant and locules/
fruit ; Kashi Anupam x WIR-3957 for seed/fruit; Hisar
Anmole x EC520049 and Punjab Chhuhara x EC528372
for the total soluble solids and yield/plant.