【摘要】 通过测定不同的 2 ,4 D浓度对番茄种子出芽率 ,无菌苗株高 ,胚轴直径以及对根长的影响 ,得出以下结论 :2 ,4 D处理浓度为 0 . 5mg/L时种子出芽率最高 ,随着 2 ,4 D浓度的增高 ,株高及根长受抑制 ,而胚轴的直径却随着浓度的增加而变粗更多还原

【Abstract】 Based on the result of 2,4-D (with different concentrations ) on the tomato seed germination percentage, aseptic seedling height, plumular axis diameter and root length, it is concluded that the seed germination percentage is the highest when the concentrations of 2,4-D is 0.5 mg/L. The seedling height and root length are reduced while the plumular axis diameter becomes larger with increasement of 2,4-D concentrations.更多还原