Effects of Different CaCl2 Treatments on Seedling Growth and Physiological Characteristics of Peanut under Drought Stress
To explore the regulatory role of different CaCl2 treatments on peanut seedling growth under drought stress,'Shanghua 186'was used as the material to explore seedling growth and physiological characteristics of peanuts under 15%PEG-6 000 drought stress conditions.The results showed that plant height and root length significantly increased with CaCl2 seed soaking or foliar spraying under PEG stress conditions.Additionally,the fresh weight and dry weight of seedlings were significantly promoted,and the activities of SOD and POD in peanut leaves significantly increased,while the MDA content significantly decreased.Optimal effects were observed with CaCl2 seed soaking at 40 mmol/L and CaCl2 foliar spraying at 20 mmol/L.In conclusion,different CaCl2 treat-ments effectively promote peanut seedling growth under drought stress and improve their drought resistance.
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