EFFECT OF MEPIQUAT CHLORIDE ON GROWTH, YIELD AND QUALITY OF TOMATO (Solanum lycopersicum L.)
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Date
2019-08-29
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UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU
Abstract
An investigation was carried out at the Department of Horticulture, GKVK, UAS,
Bengaluru during 2018-19 to know the effect of mepiquat chloride (MC) on growth, yield
and quality of tomato. The investigation comprised of eight treatments with three
replications viz,50 g a.i.ha-1 of MC at initiation of flowering (T1), 62.5 g a.i.ha-1 of MC at
initiation of flowering (T2), 125 g a.i.ha-1 of MC at initiation of flowering (T3), 50 g
a.i.ha-1 of MC at initiation of fruiting (T4), 62.5 g a.i.ha-1 of MC at initiation of fruiting
(T5), 125 g a.i.ha-1 of MC at initiation of fruiting (T6), 50 g a.i.ha-1 of MC at initiation of
flowering and at initiation of fruiting (T7) and control. The results have shown that
treatment T3 (125 g a.i.ha-1 of mepiquat chloride at initiation of flowering) has recorded
minimum plant height (82.20 cm) and intermodal length (5.11 cm). Fruit weight (71.75
g), fruit length (5.64 cm), fruit diameter (4.57 cm), number of fruits per plant (49.83),
yield per plant (3.58 kg), yield per hectare (85.81 tons), TSS (4.69 0Brix), ascorbic acid
(17.05 mg/100g) and fruit firmness (4.17 kg/cm2
) were maximum in treatment 125 g
a.i.ha-1 of mepiquat chloride at initiation of flowering followed by T6 fruit weight (70.21
g), fruit length (5.64 cm), fruit diameter (4.56 cm), number of fruits per plant (47.96),
yield per plant (3.11 kg), yield per hectare (80.83 tons), TSS (4.64 0Brix), ascorbic acid
(16.92 mg/100g) and fruit firmness (4.08 kg/cm2
). The results of this study shows that the
treatment 125 g a.i/ha mepiquat chloride at initiation of flowering is ideal for getting
higher yield with better quality fruits.