The distribution of main internal quality in pummelo (Citrus grandis) fruit

This study is aim to explore the distribution of main internal quality among different parts of pummelo fruit. Four pommelo cultivars, ‘Sanhong Miyou’, ‘Hongrou Miyou’, ‘Huangjin Miyou’ and ‘Hongmian Miyou’ were used as materials. The total soluble solids (TSS), total sugar and titratable acid contents among different parts of the fruit were analyzed. The distribution of main internal quality revealed consistent pattern in colorized pummelo fruit from different genotypes and ecological climate zones. TSS and total sugar contents were significantly higher in the top of the fruit and the middle part of the fruit than that in the base. The TSS content in the middle part near the column has the maximum correlation with the TSS content in whole fruit. There were no significant differences in titratable acid distribution among different parts of fruit. The TSS content in the middle part near the column can represent the whole fruit’s content. Different genotypes and ecological climate zones had no effects on the distribution of main fruit internal quality.