| dc.description.abstract | Heat tolerant tomato hybrids along with production technologies were evaluated in two consecutive summer
seasons of 2012 and 2013 under Sylhet conditions with a view to selecting suitable tomato hybrid and its
production technology at the experimental field of Horticulture Department, Sylhet Agricultural University. In
the present study four tomato hybrids viz. C11 × C51, WP7 × C51, C41 × WP8 and C51 × WP10 and effect of
grafting and hormone on summer tomato production were evaluated during May to September 2012 while
further evaluation of three tomato hybrids at three different sowing dates was made during the period from May
to November 2013.Four heat tolerant tomato hybrids were not significantly different for days to first flower and
days to first harvest. Among the hybrids, C41 × WP8 produced the highest number of fruits per plant (30.70) but
it corresponding individual fruit weight was the lowest (42.66 g). The heaviest individual fruit weight was
recorded from the hybrid WP7 × C51 (55.60 g). The hybrid C41 × WP8 exhibited the highest fruit yield
potentiality (1.29 kg/plant and 43.86 t/ha) followed by C11 × C51 (1.27 kg/plant and 43.18 t/ha). Grafting did
not show significant influence on summer tomato production. However, application of hormone (2% Para
Chlorophenoxy Acetic Acid) had significant influence of summer tomato production. Hormone treated plants
produced significantly higher number of fruits per plant (27.8) and fruit yield per plant (1.25 kg) compared to
that of non treated plant (1.01 kg/plant).Sowing dates had significant influence on summer tomato production.
The fruit yield was recorded from the plants sown on May 5 (30.26 t/ha) closely followed by May 25 sowing
(29.58 t/ha) while it was the lowest from the plant of June 15 sowing (27.54 t/ha). Among three tomato hybrids,
C51 × WP10 produced the highest mean fruit yield per plant (0.96 kg) and per hectare (32.64 t/ha). However,
the hybrid C51 X WP10 produced the highest fruit yield (1.11 kg/plant and 37.74 t/ha) when grown from May
25 sowing. | en_US |
