【Objective】 Effects of tree shapes and canopy structures on fruit quality,yield and the relativity of fruit quality and canopy parameters were studied to support the evaluation and improvement of apple cultivation and tree shapes on Weibei region of the Loess Plateau.【Method】 We used 5-year-old trees of 'Fuji' and 'Royal Gala' trained with shapes of tall spindle(TS) and V-trellis(VT) as experiment materials.The structure indexes and canopy structures were observed and fruit quality and yield were determined...