The IAA oxidase activities at internode 2 of three sugarcane cultivars Guitang 11,Guitang 15 and ROC16 (Saccharum spp. hybrid) were estimated.

• 测定了甘蔗品种桂糖11号、桂糖15号和新台糖16号节间2的IAA氧化酶活性的动态变化以及乙烯利处理后的酶活性变化。