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      Osmopriming with CaCl2 improves wheat (Triticum aestivum L.) production under water-limited environments.

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          Abstract

          This 2-year field study investigates the potential of seed priming to mitigate losses caused by drought stress at different phenophases of wheat. Wheat seeds were soaked either in distilled water or in aerated solution of CaCl2 (ψs -1.25 MPa) for 18 h to accomplish hydropriming and osmopriming, respectively. The soil moisture was maintained at 90-100% field capacity (well-watered) or 45-50% field capacity at vegetative (vegetative drought) and reproductive (terminal drought) phases. Allometric traits leaf area index, leaf area duration, and crop growth rate were initially more affected by vegetative drought; however, terminal drought was more severe at later stages. Drought at both phenophases, especially terminal drought, impaired the entire yield-related traits of wheat; however, osmopriming compensated the drought-induced losses up to a certain extent. Osmopriming improved the wheat grain yield, economic benefits, and allometric traits under vegetative and terminal drought as well as well-watered conditions. It is recommended that the physiological, biochemical, and genetic mechanisms of osmopriming must be explored to find more valuable insights for improving wheat productivity.

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          Author and article information

          Journal
          Environ Sci Pollut Res Int
          Environmental science and pollution research international
          Springer Nature
          1614-7499
          0944-1344
          May 2017
          : 24
          : 15
          Affiliations
          [1 ] Department of Agronomy, Bahauddin Zakariya University Multan, Multan, 60800, Pakistan.
          [2 ] Department of Plant Protection, Faculty of Agriculture, Gaziosmanpaşa University, 60240, Tokat, Turkey.
          [3 ] Department of Plant Protection, Faculty of Agriculture and Natural Sciences, Düzce University, Düzce, Turkey.
          [4 ] Department of Soil and Environmental Science, Muhammad Nawaz Sharif University of Agriculture, Multan, Pakistan.
          [5 ] College of Agriculture, Bahauddin Zakariya University Sub Campus, Layyah, Layyah, Pakistan. shahid.hzau@yahoo.com.
          [6 ] Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China. shahid.hzau@yahoo.com.
          [7 ] College of Agriculture, Bahauddin Zakariya University Sub Campus, Layyah, Layyah, Pakistan.
          Article
          10.1007/s11356-017-8957-x
          10.1007/s11356-017-8957-x
          28391467
          920b3e5b-d072-4f10-ad27-4686e5fc9feb
          History

          Growth,Osmopriming,Terminal drought,Vegetative drought,Wheat,Yield

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