STUDY ON THE PERFORMANCE OF EXPERIMENTAL HYBRIDS IN TOMATO (Lycopersicon esculentum Mill)
Date
2014-06
Authors
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Publisher
HAJEE MOHAMMOD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR
Abstract
This experiment was conducted to study the performance of experimental hybrids in
tomato (Lycopersicon esculentum mill.) during the period from November 2013 to
April 2014 at the experimental field of the Department of Genetics and Plant
Breeding, Hajee Mohammad Danesh Science and Technology University, Dinajpur.
The experiment was laid out in the Randomized Complete Block Design (RCBD)
with three replications. Yield and yield components of ten different tomato parents
and their twenty two F, hybrids were compared in this research work. Analyses of
variance for all the characters were showed significant differences among the
genotypes. From the research work it was found that, the lowest number of days for
50% flowering was recorded in three way cross hybrid and highest days found in
single cross hybrid. The highest single fruit weight was observed in three way cross
hybrid (49.68g) and the lowest of them were observed in single cross hybrid (23.09g)
which also showed the minimum shelf life (8.23Days). The single cross hybrid
produced the maximum number of marketable fruits per plant (133.8) and also highest
fruit yield per plant (4028g/plant) whereas the lowest fruit yield observed in three way
cross hybrid (1514g/plant). On the other hand, the minimum number of marketable
fruits/plant (42.12) and maximum shelf life (16.13Days) were observed in double
cross hybrid. Among the crosses, the highest significant positive heterobeltosis for
number of marketable fruits/plant and yield/plant were observed in single cross
hybrids. In case of shelf life, the highest significant positive heterobeltosis was found
in double cross hybrid. For days to 50% flowering significant negative heterobeltosis
i.e. early flowering was observed for most of the crosses except only a single cross
hybrid. The result revealed that the hybrid C,, produced from single cross showed the
best performance for yield contributing traits compared to other hybrids and the check
variety and it was identified as promising for commercial cultivation among the
tomato single, double and three way cross hybrids.
Description
Tomato (Lycopersicon esculentum Mill.) is one of the most important, popular and
nutritious vegetable crop in Bangladesh. It ranks third next to potato and sweet
potato in terms of world vegetable production (FAO, 2008) and top the list of
canned vegetable (Choudhury, 1979). But in Bangladesh, it ranks second which is
next to potato (BBS, 2009). The tomato is the most widely used vegetable in the
world and the highest economic value. It has diversified use as raw like salad, soup
and processed into stable products like ketchup, sauce, conserved puree,
marmalade, chatney, jelly, jam, pickles, juice, paste, powder and many other
products (Ahamd, 1979; Thompson and Kelly, 1983; Bose and Som,
Keywords
Planting Materials, Preparation of the main field, Application of manures and fertilizers, Sowing and raising of seedlings in nursery, Transplanting of seedling