Total soluble solids (TSS) increased by one Brix and the maximum was 15.5%, titrable acidity (TA) decreased to 0.55%.

• 红肉脐橙果实留树期间可溶性固形物与可滴定酸的含量分别上升与下降达1个百分点，试验中可溶性固形物最高达15.；5%25，而可滴定酸含量最低值达0