When the concentration of Hg2+ increased the germination rate of Egeria najas showed a degressive trend, and the germination rate of shoot fragment in June was higher than Novemb

• 不同浓度Hg2+对细叶娱蛤草侧枝发芽个数的影响没有明显的规律，Hg2+浓度>l .；oomg/L处理己对细叶娱蚁草侧枝生殖产生毒害作用。