硒对赤豆芽苗菜产量品质及保护酶活性的影响

摘要

The effect of selenium on yield and qualities and protective enzyme activity of red bean (V igna angularis)sprouts was studied with different concentrations of Na2SeO3 solution(0,2,4,6,8 mg/L)to soaking seeds for 12 h.The results showed that it was very favorable for seeds seeking in proper se(4~6 mg/L)to promote the yield and qualities of red bean sprouts.With the concentration of 4 mg/L,content of Vitamin C was highest. With the concentration of 6 mg/L,content of soluble sugar was highest,and the content of nitrate nitrogen reached the lowest at 8 mg/L.With the concentration of 6 mg/L,the activities of superoxide and peroxidase were the highest,and the activities of catalase was highest at 4 mg/L.It is thus feasible to promote protective enzyme activity in red bean sprouts by adding appropriate Se.In this experiment,the most optimum concentration of Na2SeO3 for red bean sprouts growth was 4~6 mg/L.%以东北赤豆(V igna angularis)为试验材料，分别用0、2、4、6、8 mg/L的Na2SeO3溶液浸种处理12 h，研究硒对赤豆芽苗菜产量、品质及保护酶活性的影响。结果表明：适量的硒(4~6 mg/L)浸种对赤豆芽产量和品质的提高非常有利。赤豆芽苗菜VC含量、可溶性糖含量分别在硒浓度为4、6 mg/L时最高；8 mg/L处理时，硝酸盐含量最低。一定浓度的硒浸种可以显著提高赤豆芽菜保护酶活性，6 mg/L处理SOD、POD活性最高；4 mg/L处理CAT活性最高。本试验条件下，最适宜赤豆芽苗菜生长的Na2SeO3浓度为4~6 mg/L。