【摘要】 以不同pH值的模拟酸雨处理蚕豆 (Viciafaba )种子 ,然后测定其发芽率、根的长度、鲜重、干重和灰分含量 .结果表明 ,酸雨对上述指标均有不同程度的影响 ,其中以根的长度、鲜重和灰分含量最为明显 .虽发芽率影响不大 ,但降低它的萌发速度 .模拟酸雨对蚕豆根的作用与酸度有关 ,随酸度增大而增大 ,但当pH≥ 3时 ,上述指标则变化不明显更多还原

【Abstract】 The seeds of broad beans are treated with simulated the acid rain of different pH values, and it can affect germin ation rate, root fresh weight, root dry weight, root length, and ash content. As the pH value in simulated acid rain decreases the effects increase to some degr ee. Although the simulated acid rain does not affect on beans’ germination rate, it can decrease their early germination speed.更多还原