Effects of Low Temperature on Soil Enzyme Activity of Wheat Seedling

With Lankaoaizao 8,Yanzhan 4110,Yumai 49-198 and Zhoumai 18 as experimental materials,effects of low temperature on soil enzyme activity of wheat seedlings with pot experiments in room were studied.The temperature was arranged with 4 levels,and the treatment time was 1,2,3 d,respectively.The activities of urease,sucrase,amylase and catalase in rhizosphere and non-rhizosphere soil were discussed.The results showed that temperature affected enzyme activity in rhizosphere soil significantly at 0.05 level.With the temperature decreasing and treatment time increasing,the activity of urease and amylase in rhizosphere soil weme lowering,while the activity of urease,amylase and catalase in non-rhizosphere soil changed slightly.Soil enzyme activity in rhizosphere was higher than non-rhizosphere,and their gap was narrowing with the decreasing temperature and the processing time.In this research,sucrase,amylase and catalase showed higher activity under T3 treatment,which might indicate that appropriate low temperature promoted the increase of soil enzyme activity.One-way ANOVA showed that there were no significant variations on soil enzyme activity among the 4 wheat varieties.