【摘要】 对三种不同的稀土元素铈 (Ce)、钇 (Y)和镧 (La)在甜瓜离体条件下的作用进行了研究 .不同浓度的铈和钇的试验结果表明 :在 50～ 10 0mg L浓度条件下 ,可减少芽的黄化 ,叶片中叶绿素含量明显增加 ;La和IBA配合使用抑制西蒙洛托芽生根 .这些结果在甜瓜离体繁殖中 ,对试管苗的正常生长 ,防止黄化具有实际意义 .更多还原

【Abstract】 The paper deals with the effects of three different rare-earth elements:Ce、Y and La. The results of different concentrations of Ce and Y show that it can decrease the xanthochroism of shoots and increase the concentration of chlorophyll clearly at 50～100*!mg/L; in addition, the treatment of La and IBA inhibits the formation of root of melon(シ? 堀毳?). These results are significant in culture of melon in vitro with regard to the normal growth of plantlet and restrain xanthochroism.更多还原