The average relative root length(RRL) was 24.7%,relative seedling length and fresh weight were(59.7%) and 69.1%,respectively.

• 结果表明；与对照相比；缺氧处理对油菜幼苗生长具有显著的抑制作用:平均相对根长为24.；7%25；平均相对茎长和鲜重分别为59