The treatments using methyl jasmonate with different concentration on Hunt Song ( Gladiolus hybridus Hort.) decreased length of leaf, flower stem and the content of leaf chloroplast chromophyll, and increased the fresh weight and dry weight of leaf. 用不同浓度茉莉酸甲酯处理唐菖蒲,抑制叶片的伸长生长和叶绿体色素的含量,促进干重、鲜重的增加;