Effects of the Solution from Burned Wheat Straw Soil on the Seed Germination and Seedling Growth of Maize

The effects of the solution from burned wheat straw soil on seed germination and seedling growth of maize were studied by using water culture.The results showed that the germination percentage,germination index(GI) and transformation ratio of organic substance in endosperm of maize seeds were no evident decreased,but the germination energy,seeds' vigor index(VI) and α-amylase activity of maize seeds decreased more markedly.There were no evident differences in seedlings' sprout length and plant fresh weight and synthesize ratio of soluble protein between the treatments of burned wheat straw soil and non-burned wheat straw soil.On the contrary,the radical length,side root number,plant dry weight,contents of chlorophyll and net photosynthesis ratio of maize plants cultured in the solution from soil of burned wheat straw decreased more markedly than those cultured in the solution from soil of non-burned wheat straw.These results suggested that the solution from burned wheat straw soil make against the seed germination and seedling growth of maize.