Dense stands of pruned trees: results of current cultivation forms.

摘要

A dense (10000 trees/ha) stand of 2 apple cultivars (Golden Delicious and Fiesta grafted on M.9 vt and M. 27) was established in 1991 in Wadenswil, Switzerland. Nine pruning and training systems were compared and data (1992-2000) are presented on yields and quality (weight and colour). High investment costs were not compensated by higher yields or better quality, and the use of closely planted orchards is not recommended.