Evaluation and Correlation Analysis on Quality of ‘Yali’ Pear in Hebei Province

Taking 'Yali' pear of Hebei os research object,the correlation of each quality index were analysed,by bivariate correlation analysis.The results showed that CS and soluble solids,titratable acid were the main evaluation factors,and there was abvious variation of 'Yali' pear quality in different producing area.There was extremely significant positive correlation between soluble solids and CS,titratable acid,Vc each other,while starch had extremely significant negative correlation with CS and soluble solids,titratable acid,Vc.Per had significant positive correlation with hardness,titratable acid had significant negative correlation with hardness,but there was no significant correlation between the other quality index.