Research Information System
IV. International Agricultural, Biological & Life Science Conference, Edirne, Turkey, 29 - 31 August 2022, pp.229, (Summary Text)
The effect of drought stress on 21 wheat (Triticum aestivum L.) varieties was determined at the germination stage. Varieties were screened for drought tolerance. Four levels of osmotic stress were assessed by applying different concentrations of polyethylene glycol (PEG-6000; 0%, 10%, 15%, and 20% (w/v)). Germination rate, root-shoot length, total chlorophyll amount (SPAD), specific leaf area (SLA), relative water content (RWC), superoxide anion (O2ˉ), and hydrogen peroxide (H2O2 ) accumulation were determined on the 8th day after sowing. The increased osmotic stress significantly reduced germination rate, root-shoot length, SLA, chlorophyll amount, and RWC in Kate-A1, Gelibolu, and Hamitbey varieties. Pehlivan, Karahan-99, and Tekirdağ varieties were less affected by osmotic stress and these varieties were determined as drought-resistant varieties than other varieties.