Effect of NaCl Sress on Germination Characteristic of Corn Seed

[Objective] The research aimed to study the effect of NaCl stress on germination characteristic of corn seed.[Method] Seven corn varieties were treated with NaCl of different concentration.And the germination rate,germination energy and germination index were determined.[Result] The result showed that the germination rate,the germination energy and the germination index of seven varieties were declined with the increasing of the concentration,and the drop degree of different variety was different.But under the low concentration(less than 30 mmol/L),the germination rate and the germination energy were higher than control.The resistance of tang502 and jianfuzai1hao against salt were the best,Sweet09,GD0612,the Thai glutinous rice and Yunnan10hao were in the middle,and SYN(F9) was the worst.[Conclusion] The study can provide the theoretical basis for the appraisal of corn germplasm resources and the protected cultivation with resistance salt.