Effects of Exogenous Silicon on Germination of Glycine soja under Salt Stress

Effects of silicon on seed germination percentage,viability,germination index and growth of radicle and hypocotyl of Glycine soja seedlings under 100 mmol·L-1 NaCl treatment were studied.The results showed that germination percentage,viability,germination index and growth of radicle and hypocotyl were obviously decreased after NaCl treatment and the decrease extent could be restored by addition of 0.5 and 1.0 mmol·L-1 Silicon exogenously.However,high concentrations of K2SiO3(≥2.0 mm·L-1) can not restore the inhibition effects of NaCl on germination percentage,viability,germination index,radicle and hypocotyls growth of the soybean seedlings.The results indicated that the ability of seed germination under salt stress could enhance by addition of silicon with appropriate concentrations exogenously.