Journal of Environmental and Agricultural Sciences (JEAS). Ahmad et al., 2019. Volume 21: 6-13
Open Access – Research Article
Effect of Exogenous Application of Osmolytes on Growth and Yield of Wheat under Drought Conditions
Ali Ahmad 1,*, Zubair Aslam 1, Naeem Iqbal 3, Muhammad Idrees 3, Korkmaz Bellitürk 4, Sami-ur-Rehman 1, Hafeez Ameer 1 Muhammad Usman Ibrahim 1, Samiullah 2, Muhammad Rehan 1
1Department of Agronomy, University of Agriculture Faisalabad, 38000, Pakistan
2Department of Plant Pathology, University of Agriculture Faisalabad, 38000, Pakistan
3Agronomic Research Institute, Plant Physiology Section, Ayub Agricultural Research Institute (AARI), Faisalabad, Pakistan
4Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Tekirdag Namık Kemal University, Suleymanpasa Tekirdag, Turkey
Abstract: The experiment was performed at Agronomic Research Institute, Plant Physiology Section, Ayub Agricultural Research Institute (AARI), Faisalabad, Pakistan. The trial was conducted in split plot design with 3 replications. Plot size was used 1.8 m × 5.0 m. The aim of this study was to examine the effect of various osmolytes on physiological mechanisms conferring drought resistance in wheat. Treatments were moisture conditions (Control/irrigation at 60% available water, moisture stress/irrigation at 35% available water). Osmoprotectants (Check, Water Spray, Salicyliacid @100 mM, Ascorbic acid @1.0 mM, Calcium chloride @ 100mM, Glycine betaine @ 0.7 mM, Proline@ 30 mM, Proline@ 60 mM). The recorded parameters during experiment were number of fertile tillers/m2, plant height (cm), spike length (cm), 1000 grain weight (g), spike length (cm) and grain yield ( kg ha-1). The results of the experiment showed that grain yield reduced by the increase in water stress. Grain yield depends upon number of fertile tillers, number of grains per spike and 1000 grain weight. Maximum grain yield (4510 kg ha-1 and 4496 kg ha-1), was obtained where salicylic acid and ascorbic acid were applied at the rate of 100 mM and 1.0 mM. Thus application of osmoprotectants significantly enhanced the grain yield, which indicated their potential role in crop improvement under stress environment.
Keywords: Wheat, osmoprotectants, plant height, biological yield, grain yield, water stress
*Corresponding author: Ali Ahmad; ali.ahmad426@rocketmail.com
Cite this article as:
Ahmad, A., Z. Aslam, N. Iqbal, M. Idrees, K. Bellitürk, S.Rehman, H. Ameer,, M.U. Ibrahim, Samiullah and M. Rehan. 2019. Effect of exogenous application of osmolytes on growth and yield of wheat under drought conditions. Journal of Environmental & Agricultural Sciences. 21:6-13. [Abstract] [View Full-Text] [Citations]
Copyright © Ahmad et al., 2019. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium provided the original author and source are appropriately cited and credited.
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