摘要
本文研究表明，汞能抑制小麦种子萌发过程中淀粉酶、脂肪酶和蛋白酶活性，抑制幼苗生长和呼吸代谢，降低种子活力。在幼苗生长阶段，汞能降低叶绿素含量和可溶性糖的积累，降低根系活力，抑制硝酸还原酶活力。但浓度低时，在萌发初期有短暂促进作用。
The effect of HgCl_2 on seed germination and seedling growth of wheat was investigated in this paper.The results showed that HgCl_2 decreased seed vigor,inhibited the growth and respiration rate of seedlings,and reduced the activities of diastase,protease and lipase during wheat seed germination. HgCl_2 reduced the contents of chlorophyll and soluble sugars of leaf,roots activities and nitrate reductase activity of roots during seedling growth.Low concentration HgCl_2, however,had short term promotive effect during early days of seed germination.
出处
《植物生态学报》
CAS
CSCD
北大核心
1998年第4期373-378,共6页
Chinese Journal of Plant Ecology
基金
煤炭高校优秀青年基金
安徽省教委自然科学研究计划项目
关键词
小麦
汞
种子萌发
幼苗生长
代谢
Wheat,Mercury,Seed germination,Seedling growth,Metabolism
