Se和环境中富里酸对小麦种子发芽的影响及其生理特性

Effect of selenium and fulvic acid on seed germination of wheat and its physiological properties

利用种子发芽实验研究了亚硒酸钠（ＮＶ２ＳｅＯ３）和从土壤中提取的富里酸（Ｆｕｌｖｉｃ ａｃｉｄ， ＦＡ）对小麦种子发芽和生长的影响，以及 ＦＡ对亚硒酸钠毒性的抑制作用．结果表 明．ＦＡ和低浓度Ｎａ２ＳｅＯ３对种子发芽及发芽后的生长有促进作用，高浓度 Ｎａ２ＳｅＯ３明显 降低种子发芽率、种子活力、α－淀粉酶活性及幼苗的生长，ＦＡ对亚硒酸钠的毒性有一定的 抑制作用．

The effect of selenite and soil-extracted fulvic acid (FA) on seed germination of wheat and its growth and that of FA on inhibiting the toxicity of selenite are studied by ed germination test. The results show that FA and low concentration Na2SeO3 can promote the ed germination of wheat and its seedling growth, while high concentration of selenite reduces the germination rate of seed. its vigor andα-arnylase activity, and the growth of seedling markedly. FA has a definite effect on the inhibition of selenium toxicity.