INFLUENCE OF DIFFERENT GROWING CONDITIONS, MICRONUTRIENTS AND BIOSTIMULANT APPLICATION ON GROWTH, SEED YIELD AND QUALITY OF MARIGOLD (Tagetes erecta L.) cv ARKA BANGARA
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Date
2015-09-23
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UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU
Abstract
A field and laboratory experiments were conducted during Rabi 2014-15 at
Department of Horticulture and Department of Seed Science and Technology, UAS,
GKVK, Bengaluru. The results revealed that open field condition recorded higher growth
and seed yield attributes viz., plant height (80.73 cm), number of branches (15.13),
flowering duration (73.4 days), number of flowers per plant (46.75), weight of the flower
per plant (462 g), flower diameter (6.20 cm), number of seeds per flower (138.83), seed
yield per plot (149 g), seed yield per hectare (593 kg). Among the micronutrients and
biostimulant spray of humic acid 0.2 % + FeSO4 0.5 % + ZnSO4 0.5 % at 30 and 45 DAT
was recorded higher growth, seed yield and quality attributes viz., plant height (86.63
cm), number of branches (16.40), days to 50 per cent flowering (27.5), flowering
duration (76.3 days), number of flower per plant (53.23), weight of the flowers per plant
(573 g), flower diameter (6.61 cm), number of seeds per flower (147.83), seed yield per
plot (162 g), seed yield per hectare (644 kg), seed recovery (84 %), germination (87.17
%), test weight (3.32 g), seedling length (12.29 cm) and seedling dry weight (12.14 mg)
SVI-I and SVI-II (1071 and 1059, respectively) with lower electrical conductivity (0.162
dSm-1). Combination of open field condition with humic acid 0.2 % + FeSO4 0.5 % +
ZnSO4 0.5 % at 30 and 45 DAT has recorded highest net return (Rs. 4,28,790) and
highest benefit cost ratio (1:1.97).
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