Abstract

Info

Author(s):: LEI Shi-jun; Department of Horticulture，Weifang Vocational College，Weifang，Shandong 261031

Keywords:: apple; Fuji; canopy park; tree transformation; spacing transformation; pruning

Abstract:: Taking high density Fuji apple with flourishing garden as research object,and ‘Changfu 2’ as the test material，by the method of high trunk open centre shape and low trunk open centre shape techniques，the effect of high density canopy renovation，reconstruction spacing，pruning and other measures on Fuji apple garden and fruit of ‘Changfu 2’ apple were studied.The results showed that through the transformation to Fuji apple garden，by use of high trunk open centre shape,the height of trunk bacame higher and tree height became lower，crown diameter expanded，the number of backbone branches reduced,the total branches reduced，branches per plant increased，long branch proportionally reduced by increasing the proportion of high-quality spur；fruit weight inereased，fruit shape index slightly increased，the proportion of more than 80 mm diameter increased，fruit generally increased；the proportion of colored area of 1/2 or more significantly increased soluble solids content inereased，titratable acid content，vitamin C content changed little，firmness increased.