International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 1
First page : (784) Last page : (789)
Article doi: http://dx.doi.org/10.18782/2320-7051.3034
A Comparative Study on the Effect of Foliar Application of Nitrogen, Phosphorus, Potassium, Iron and Zinc on Proline Content, Yield and Cost- Benefit ratio of groundnut Plants Grown under Water Stress Conditions
B. Rajitha*, P. Latha, P. Sudhakar and V. Umamahesh
Crop Physiology, Regional Agricultural Research Station, Tirupati-517502, A. P.
Department of Crop Physiology, S.V. Agricultural College, Tirupati-517502, A. P.
*Corresponding Author E-mail: rajiagri26@gmail.com
Received: 27.05.2017 | Revised: 25.06.2017 | Accepted: 1.07.2017
ABSTRACT
Proline is a potential osmoprotectant to alleviate adverse effects of abiotic stresses on plants. Nutrient management is one of the most important factors in successful cultivation of plants. In order to study the effects of foliar nutrition on grain yield, shelling percentage and proline content of groundnut genotype, an experiment was conducted using a Randomized Block Design with three replications at Dryland Farm of S.V.Agricultural College, Regional Agricultural Research Station, Acharya N.G. Ranga Agricultural University, Tirupati during rabi season, 2014-15. In this research, Groundnut crop was imposed to mid-season moisture stress from 45 DAS to 75 DAS (pod formation to pod filling stage). Treatments included Foliar application of chemical nutrients (8 treatments) along with two checks (one control irrigated and one control stress) were imposed at 60 days after sowing (15 days after imposing moisture stress). The results revealed that, significant variations for morphological, physiological, drought tolerance, biochemical and yield attributes were observed. Among the foliar spray treatments to mitigate moisture stress, significant difference was found at 75- 90 DAS of crop growth period. At 75 DAS, the foliar spray treatments, NPK- 19:19:19 @ 0.5%, KCl @ 1% and KNO3 @ 0.5% recorded only moderate (645.7, 673.9 and 670.0 µg g-1 respectively) proline content values compared to other foliar treatment. NPK- 19:19:19 @ 0.5% showed 28 per cent higher pod yield followed by KNO3 @ 0.5% and KCl @ 1 % and with 26, 23 per cent higher pod yield, respectively compared to control stress treatment. Among the foliar spray treatments, NPK- 19:19:19 @ 0.5% showed significantly 36 per cent highest B:C Ratio (2.16) followed by KNO3 @ 0.5% and KCl @ 1 % showed 30 per cent and 23 per cent highest B:C Ratio (2.06 and 1.96 respectively) compared to other treatments.
Key wards: Groundnut, Moisture stress, Nutrients, Foliar application.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Rajitha, B., Latha, P., Sudhakar, P. and Umamahesh, V., A Comparative Study on the Effect of Foliar Application of Nitrogen, Phosphorus, Potassium, Iron and Zinc on Proline Content, Yield and Cost- Benefit ratio of groundnut Plants Grown under Water Stress Conditions, Int. J. Pure App. Biosci.6(1): 784-789 (2018). doi: http://dx.doi.org/10.18782/2320-7051.3034
