Effect of Plant Growth Regulators and Micronutrient on Seed Production of Okra [Abelmoschus esculentus (L.) Moench]
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Date
2021-02-23
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College of Horticulture and Forestry, Central Agricultural University, Pasighat
Abstract
The result revealed that growth, yield, seed quality, biochemical and nutrient attributing characters were significantly influenced by the application of growth regulators and micronutrients. In case of growth regulators most of the growth, yield, quality of seed, biochemical and nutrient parameters of plant were found highest with treatment P4 (GA3-100 ppm) which was followed by P2 (NAA-100 ppm).
Whereas, in case of micronutrients the highest growth, yield, quality of seed, biochemical and nutrient parameters of plant were recorded with treatment M5 (Borax-1.0%) which was followed by zinc sulphate-1.0% and borax- 1.5%. It has been observed that increasing micronutrient concentrations from 0.5% to 1.0% improves the different observation but it shows negative effect when concentrations increase from 1.0% to 1.5%.
Interaction of growth regulators and micronutrients also significantly influenced the different observation parameters of okra. Among different treatment combinations the highest growth, yield, quality of seed, biochemical and nutrient parameters of plant were recorded with the treatment combination of GA3-100 ppm + borax- 1.0% (P4M5). It has also seen that combine application of growth regulators and micronutrients have superior value as compared to individual application of treatments. All the parameters recorded significantly lowest under control treatment
As far as economics of cultivation is concerned the highest seed yield (18.84 q ha-1) and green fruit yield (1007.33 kg ha-1) with net income of Rs.297631.43 ha-1 along with benefit cost ratio of 3.34 was obtained by P4M5 (GA3- 100ppm + Borax- 1.0%). Hence considering the positive effect of growth regulators and micronutrients on growth, yield, seed quality, biochemical and nutrient parameters of plant P4M5 can be considered as the best for adopting at the field level to reap good economic yield with better quality seed and high net return.
Description
The experiment was conducted at Vegetable Research Farm, College of Horticulture and Forestry, Central Agricultural University, Pasighat, East Siang, Arunachal Pradesh, India to study the “Effect of plant growth regulators and micronutrients on seed production of okra [Abelmoschus esculentus (L) Moench].” during the rainy season of the years 2018 and 2019. The experiment was laid in FRBD (Factorial) with three replications in which the treatments comprised of two levels each of NAA (50 and 100 ppm), GA3 (50 and 100 ppm) and three levels of micronutrients i.e. Zinc sulphate (0.5. 1.0 and 1.5%) and Borax (0.5. 1.0 and 1.5%).