Evaluation of Tomato Hybrids Suitable For Spring Season Cultivation
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Date
2021
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Punjab Agricultural University, Ludhiana
Abstract
The present investigation in tomato (Solanum lycopersicum L.) was conducted at PAU,
Ludhiana during 2020-21 with the objective of developing hybrids suitable for spring season
cultivation possessing maximum harvesting span along with desirable horticultural traits. The
experimental material comprised of 56 F1 hybrids (developed by line × tester method), 18
parental lines (14 lines and 4 testers of ripening mutants) and one standard check „PTH-2‟
were transplanted in randomized complete block design with three replications. Evaluation
was carried out for all the experimental material in main as well as spring season. The ratio
σ2SCA/ σ2GCA was more than unity for all characters except average fruit weight in main
and spring season and locules per fruit, pericarp thickness, TSS, dry matter and lycopene
content in spring season, which indicated the predominanace of non-additive effects in both
seasons. Lines, FL-556 and Punjab Ratta in main and spring season respectively whereas,
tester alc-IIHR-2050 in both season resulted as good general combiners for most of
characters. Cross, SMZ-867 × rin-Rutgers in main season and SMZ-867 × nor-RM-1 in
spring season possessed good SCA effects for most of the characters. Cross combinations viz.
PAU 114 × nor-RM-1, PAU 2381 × nor-RM-1 in main season while, crosses LT-44 × rinRutgers,
PAU 2381 × rin-Rutgers in spring season recorded significant heterosis over better
parent and check in terms of yield and other quality traits. Out of fifty six hybrids the
combinations, CLN1621L × alc-IIHR-2050, LT-44 × rin-Rutgers in main as well as spring
season, PAU 2381 × nor-RM-1, Leader × nor-RM-1, LT-42 × alc-IIHR-2050 and Roma ×
nor-RM-1 in main season and PAU 2381 × rin-Rutgers, FL-556 × rin-Rutgers, FL-556 × alcIIHR-2050
and LT-44 × alc-IIHR-2050 in spring season were recorded for prolonged
harvesting span vis-à-vis desirable quality attributes particularly fruit yield, fruit weight,
minimum days from transplanting to first harvest, pericarp thickness, lycopene content, dry
matter, TSS and titratable acidity with fair amount of heterosis. Therefore, the hybrid crosses
which expressed higher yield potential in addition with acceptable qualitative performance
together with maximum harvesting span i.e. prolonged fruit availability period could be
utilized for commercial exploitation
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Citation
Aeer Somkant Dattaram (2021). Evaluation of Tomato Hybrids Suitable For Spring Season Cultivation (Unpublished M.Sc. thesis). Punjab Agricultural University, Ludhiana, Punjab, India.