An analysis and evaluation on fruit quality in different varieties of Mulus asiatica Nakai

Ten fruit quality indexes of thirteen Chinese crabapple resources were evaluated and the analysis of variance was conducted for checking the significance of difference of fruit quality in different varieties.The fruit quality of Chinese crabapple was comprehensively evaluated by ways of rational-satisfactory degree and multiple value theory.The results indicated that the variety 'Yiwofeng' had the lowest content of tannin,the highest sugar acid ratio,moderate flesh hardness,the finest taste and a better fruit shape.The shortage of this variety was a small size of fruit.The single fruit weight of 'Xiajinqiusha' was the largest.The fruit firmness of 'Tianpingnanwang' was the highest.These varieties with excellent characters were breeding resources of great value.There were significant differences in fruit weight,content of fruit soluble sugar,acid,tannin content and fruit firmness among different varieties.Soluble solid content was positively correlated to titratable acid,reducing sugar and total soluble sugar.Comprehensive quality of Chinese crabapple was excellent in varieties of 'Tianpingnanwang','Taian','Northeast' and 'Taigu'.