Effect of Calcium Soaking on Seed Germination in Cucumber

The effect of calcium-soaking on seed germination of cucumber had been studied.The results showed that 0.05 mg/L Ca2+ could promote the seed germination,and the germination rate,germination index,vigor index,length of root,length of hypocotyls,diameter of hypocotyls and water content of seedlings were higher than those of control and other Ca2+ concentration,and the relative conductivity of cucumber seedling were decreased.But after 0.05 mg/L,the physiological indicators of seed germination decreased with the increase of Ca2+ concentration and the relative conductivity of cucumber seedling increased.The high concentration of Ca2+ had an inhibition effect on the seed germination and had the largest inhibition effect at 2.0 mg/L.