Effect of Osmotic Potential on Seed Germination and Biochemical Indices of different Christ's thorn (Ziziphus spina–christi) Populations

Introduction: Seed is the most important sexual reproductive factor in plants that plays an important role in transmitting hereditary characteristics, plant distribution, and establishment in different regions. Seed germination as one of the most important and complex stages in the life cycle of plants is affected by genetic and environmental factors. Drought stress is one of the main barriers of crop plants and trees, production in many parts of the world, especially in arid and semi-arid regions such as Iran. The purpose of this study was to investigate the effect of drought stress on biochemical and seed germination indices of different seed lot of Ziziphus spina-christi as suitable medicinal species for controlling soil erosion in arid regions.