Effects of Chromium stress on tomato seed germination

In present paper the influences of Cr~(6+) at different concentrations on the germination and growth of tomato were studied.With tomato seed of903as the material,seed germination test was taken to study the effects of 0.01,0.05,0.1,0.5mmol/L Cr~(6+) on its germination and growth.When the Cr~(3+) was 0.01, 0.05,0.1,0.5mmol/L,germination rate,germination potential,germination indexes and vigor indexes of tomato seed were lower than of CK,root and bud length were lower than of CK too,they decreased slowly with the increase of Cr~(6+) content.Cr~(6+) had inhibition on seed germination and seeding growth of tomato.