Through the determination of cold resistance, its ABA content in its leaves is higher than that of Mandrin and Ponkan, a通过抗寒性的测定 ,其结果表明 :赣华 79- 9新生系叶片内积累的ABA比柑和温州蜜柑数值都大 ,内源GA 的含量始终保持较低的水平 ,进一步证明该新生系抗寒性强。