Fig. 2.

Fruit size and single fruit weight of wild and cultivar fruits at three stages. A&B: fruit size, ordinate represents transverse and longitudinal diameter value (mm), blue represents transverse diameter, green represents longitudinal diameter. C&D: fruit weight, ordinate represents the value of fruit weight (g); solid represents the wild apple; slant represents the cultivated apple; abscissa t1, t2, t3 represents the young fruit stage, expansion stage and mature stage respectively