坚实度、糖度是评价水果品质的一个重要指标。试验表明 :桃子内各部位坚实度、糖度的分布存在较大差异 ;在桃子内各部位糖度与坚实度呈正相关 ;不同成熟程度桃子的糖度与坚实度呈负相关。桃子糖度和坚实度的相关性很高 ,采用二次多项式拟合更适宜 Firmness, sugar content is an important indicator of fruit quality evaluation. The results showed that there was a big difference in the degree of solidity and the degree of sugar distribution in each part of the peach. There was a positive correlation between the degree of sugar content and the firmness in each part of the peach. The sugar content and the solidity degree of the peaches were negatively correlated. Peach sugar and the degree of solidity is very high, the use of quadratic polynomial fitting more appropriate