Taking Qiujinto bagging apples as materials,the mineral content and soluble solids content were determined in different parts of healthy fruits and bitter pit fruits.The results showed that mineral elements of peel was higher than flesh,Ca content of bitter pit fruit was lower than healthy fruit,especially peel;N,P,K,B content and N/Ca,K/Ca,B/Ca,P/Ca of bitter pit fruit were higher than healthy fruit,N/K,N/P and K/P was not significant between diseased fruits and healthy fruits;Ca content of uncolored surfa...