【摘要】 比较狐尾藻和黑藻2种沉水植物不同节位和不同长度断枝的不定根和新芽形成时间的结果表明,随着断枝节位的下降或断枝长度的增加,狐尾藻不定根的形成时间分别呈延长和缩短的趋势,其新芽均呈缩短趋势;而黑藻不定根的形成时间均呈缩短趋势,其新芽受节位与长度的影响不明显。更多还原

【Abstract】 The adventitious root and sprout formations from segments with different node-positions or different length of Myriophyllum spicatum L.and Hydrilla verticillata (L.f.) Royle were studied.The results demonstrated that,with the descent of node-positions or increase of segment length,the time for adventitious roots formation of M.spicatum extended or shortened respectively,while the sprouts all shortened.But the time for adventitious roots formation of H.verticillata all shortened,the node-positions and length had no effect on sprouts.更多还原