Correlative Analysis Between Peach Fruit Types,Quality and Yield

A comparison of the quality and yield between 496 varieties of plants which produce four different types of peach—normal peach,flat peach,nectarine and flat-nectarine peach,was performed to evaluate the differences in the agricultural characteristics between each type of peach.The results were as follows:(1)No significant difference in growth period was found among these 4 peach types.(2)By comparison,the flat fruit types had higher soluble solids content(SSC)and soluble sugar content in fruits,but lower titratable acid content,firmness with skin,firmness without skin,average fruit weight,pit weight,pit weight/fruit weight and yield.(3)Higher content of SSC,titratable acid,red flush degree,firmness without skin and pit weight/fruit weight in glabrous fruit types,but lower soluble sugar content,skin firm,fruit average weight and yield index.(4)Nectarine peach had higher titratable acid content,fruit pigmentation,average fruit weight,and yield compared with the flat peach.(5)Flat-nectarine peach had significantly higher SSC,soluble sugar content,but significantly lower average fruit weight compared with normal peach.