模拟酸雨与铅复合处理对大豆种子萌发和幼苗生长的影响

he interactive effect of the different concentration lead pollution and acid rain on seed germination and seeding growth of Soybean are investigated. The results showed that lead pollution have no effect on seed germination ,while acid rain decreased seed germination .The interactive effect of lead and acid rain resulted in reduction of height, leaf area ,weight ,.At the same time transpiration in leaf is decreased ,but the content of chlorophyll is not inffect by the interactive effect of lead and acid rain ,. the content of chlorophyll is mainly inffect by the acid rain .The decreasing degrees of deeding growth under combined stress were significantly higher than under single stress ,and the decreasing degree were influenced by the dose of lead and pH of acid rain .The effect of lead were cooperated with acid rain on seed germination and seeding growth of Soybean.