【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, we conclude that the seed germination percentage is the highest when the of concentrations 2,4 D is 0.5mg/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