Heat tolerance studies in tomato (Lycopersicon esculentum Mill.)

Heat tolerance studies in tomato (Lycopersicon esculentum Mill.)

2007

E03000

An experiment was carried out to assess heat tolerance and correlation studies in tomato (Lycopersicon esculentum). The data were recorded for membrane thermostability values, stigma elongation, antheridial cone splitting, number of flowers shed per plant and yield per plant. The data indicated highly significant differences among the traits under study. Among the genotypes, Cchaus was the best, followed by was 2413L, with greater tolerance to heat stress and showing high membrane thermostability and lowest number of flowers shed whilst producing the highest fruit yield during hot period. Association of fruit yield was positive with membrane thermostability, but negative with the number of flowers shed, stigma tube elongation and antheridial cone splitting. Crux Roma, recording the lowest membrane thermostability, was the most heat-sensitive genotype.

v.9(4):649-652, INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY

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