Metabolism of Ascorbic Acid and Glutathione in Leaves of Grafted Eggplant Seedlings under NaCl Stress Effect of calcium on growth and cold resistance of grafted eggplant seedlings Effects of NaCl stress on metabolism of polyamines and ABA content in leaves of grafted eggplants Effects of cinnamic acid and vanillin on grafted eggplant root growth and physiological characteristics.