Effects of Seed Soaking with Ca~(2+) Solution on Seed Germination and Seedling Growth of Moringa sp.

The influences of seed soaking in Ca2+ solution with different concentrationson the seed germination and seedling growth of Moringa sp.were studied.Results showed that it was beneficial to the seed germination and seedling growth by using 10mmol·L-1 Ca2+ concentration.The seed germination rate,germination vigor simple vigor index,radicle length and number,seedling height,stem diameter and leaf number were conspicuously higher than CK,and were decreased by high Ca2+concentration.When the Ca2+ concentration was 20mmol·L-1,the seed germination rate and germination vigor were obviously depressed.The Ca2+ can increase the average time of the germination,but the rate of seedling emergence was markedly increased。