Yield and seed quality of mungbean (Vigna radiata L. Wilczek) in response to foliar spray of nutrients and growth regulators
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Date
2018-07
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
A field experiment was conducted during kharif season of 2017 at N. E. Bourlag Crop Research Centre of Govind Ballabh Pant University of Agriculture & Technology, Pantnagar (Uttarakhand) to evaluate the performance of mungbean varieties with foliar spray of nutrients and growth regulators. Treatment consisted of three varieties viz; Pant Mung 2 (small seeded), Pant Mung 4 (medium seeded) and Pant Mung 5 (bold seeded) and six foliar sprays (urea 2%, NPK 2%, DAP 2%, salicylic acid 100 ppm and indole butyric acid 100 ppm and control). Foliar spray of nutrients and growth regulators was done twice 40 and 55 days after sowing. The experiment was laid out in Randomized Block Design with three replications. Results revealed that bold seeded variety Pant Mung 5 had significant effect on plant height, number of branches, dry matter accumulation, days taken to 50% flowering and 80% maturity. Among all the varieties, bold seeded variety Pant Mung 5 recorded the highest seed yield, whereas the highest biological yield was noticed in small seeded variety Pant Mung 2, which resulted in lowest harvest index. Seed weight per plant was also significantly highest in case of bold seeded variety. Among seed quality parameter, germination percentage, seedling vigour indices, protein content, α- amylase and protease enzymatic activity was recorded highest in bold seeded variety Pant Mung 5. In case of foliar spray of nutrients and growth regulators, 2% DAP produced significantly highest yield which was at par with 2% urea and 100 ppm salicylic acid. Thousand seed weight was also significantly highest in foliar spray of 2% DAP followed by 2% urea. Seed quality component of mungbean was also influenced by foliar sprays. Protein content in seeds increased significantly in foliar treatment with 2% urea whereas, other quality parameters such as germination percentage, seedling length, seedling dry weight, SVI-I , SVI-II and protease enzyme activity were significantly highest in foliar spray of 100 ppm salicylic acid.
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