关键词: 甜橙, 品种, 橙汁, 加工

Abstract: In order to meet the orange juice processing for extending the processing season in the Three Gorge area, some sweet orange varieties or selections with different maturing time, higher soluble solid and lower acidity were screened from local varieties and varieties introduced from abroad.It was proved, by the study on the quality and maturity of orange varieties in the Three Gorge area, that the varieties configuring of the very early sweet orange ‘Early-Gold’, the early Valencia orange ‘Midknight’ and the late Valencia orange ‘Olinda’ with the Jingcheng orange and the late Jingcheng colected from local varieties, can harvest from November to June in Three Gorge area so that the orange juice processing period can be extended from 3-4 months now to 8 months, it will basically match to the demand of processing factories.Some sweet orange varieties with higher soluble solid and lower acidity, such as Changye orange and Yiyuan No.3, and some acidless varieties such as ‘Early Gold’ and ‘Egypt Sugar orange’, etc.can be used for reducing the orange juice acidity and greatly improving the juice quality in this region.

Key words: orange, variety, orange juice, processing