The PSR granule and Liquid treatments increased the Brix in juicy for the variety ROC 10, but decreased for the variety GT17, and had no significant effect for the variety ROC 16.

• PSR颗粒与PSR液剂处理对ROC10、GT17均提高了蔗汁重力纯度，而降低了ROC16的蔗汁重力纯度。