Efficacy of variousdoses of Salicylic Acid, NAA and GA3on vegetative growth and pod yield of broad bean.
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Date
2021
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Department of Horticulture, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi
Abstract
A field experiment was conducted during the Rabi season of the year 2019-20 at the Vegetable Research Farm of Banaras Hindu University, Varanasi to study the effect of various doses of Salicylic Acid, NAA and GA3 on vegetative growth and pod yield of broad bean. The experiment was laid out in a Randomized Block Design (RBD) with three replications during the year of study. The experiment consists of ten treatments along with control viz. Salicylic acid at 100, 150 and 200 ppm, NAA at 20, 30 and 40 ppm and GA3 at 40, 80 and 120 ppm which were sprayed at 30 and 45 DAS. Results of field investigation indicated that, the foliar spraying of GA3 at 120 ppm substantially increased plant height (116.43 cm), branches/plant (6.33), pod length (7.51 cm), seeds/pod(4.67) as well as minimize duration for 50 % flowering (57.33 days) whereas spraying of NAA at 40 ppm remarkably increased pod width (1.35 cm), fresh pod weight (4.65 g), pods /plant (87.55) as well as fresh pod yield (105.09 q/ha) as compared to other treatments. Therefore, spraying of GA3 at 120 ppm and NAA at 40 ppm was found effective for increasing the growth and yield attributes in broad bean.
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Broad bean