Effect of pruning and plant spacing on the growth of cherry rootstocks and their influence on stem water potential of sweet cherry trees

摘要: SummaryThe aims of this work are to describe the effects pruning and planting density on growth water relations ungrafted grafted sweet cherry trees. A trial with rootstocks ‘Prunus avium’, ‘CAB 11E’, ‘Maxma 14’, ‘Gisela 5’ ‘Edabriz’ was begun in 1997. Pruning severities were applied (0, 30, 60 90% vegetative removed corresponding P1, P2, P3 P4 treatments, respectively) after two plant spacings (S1 = 0.25 × 1.0 m S2= 0.45 1.5 m). Canopy, root leaf potential (ψleaf) quantified throughout growing season. significantly affected length weight rootstocks. Uncut plants (P1) showed a heavier expanded biomass (231 g 108 m) than intensively pruned (P4) (187 75 The greater obtained spacing/pruning combination, S1/P1 (285 g), smaller S1/P4 (180 g) S2/P4 (176 g). ψleaf varied between t...