Renewal Pruning Alone or in Combination with Thinning Pruning Affects Growth, Fruit Yield and Fruit Quality of Aroniaberry

Aroniaberry ( Aronia mitschurinii ) produces small pome fruits that possess health promoting compounds. Management practices for orchards are lacking, since aroniaberry is a relatively new crop. Pruning an important cultural practice to optimize fruit yield in orchards. The response of established orchard pruning was evaluated over three years (2020 2022). treatments were as follows: 1) renewal (removal shoots the base) only year 1; 2) 1 + thinning 18 2; 3) 9 and 4) no-pruning (control). In pruning, plants grew uniformly vigorously, producing 28 vegetative primary with average length 66 cm by end first growing season. Limited flowering fruiting occurred second season receiving treatments. Fruit on pruned significantly less than unpruned controls. 2, increased renewal-pruned negatively affected number inflorescences per plant, but positively individual fresh weight °Brix:titratable acidity ratios. Fruits from all had similar monomeric anthocyanins, total phenolics mineral content. 3, flower production predicted controls similar, even though substantially smaller. third season, there no longer any differences between renewed thinned those received making shoot unnecessary practice. results this study demonstrate can be effective way manage rejuvenate aging orchard.