Articles

USE OF BIOREGULATORS TO HASTEN SWEET CHERRY CANOPY DEVELOPMENT

Article number
795_78
Pages
509 – 512
Language
English
Abstract
Vertical and horizontal scaffold branches of 3-year-old ‘Summit’ sweet cherry (Prunus avium L.) trees on ‘Mazzard’ rootstock, planted at 2500 trees/ha, were treated with either BA+GA4+7 (Promalin, P) at 5000 mg L-1 mixed with acrylic latex paint or in combination with foliar applied prohexadione-Ca (Regalis, R) at either 200, 300 (200+100) or 400 (200+200) mg L-1. When P was applied on its own, or combined with R, the number of induced lateral shoots was increased and shoot distribution was more uniform along treated branches, thus reducing branch bareness compared with untreated control trees.
Regardless of bioregulator rate, growth inhibition by R was very inconsistent.
Addition of R to P did not bring about any measurable growth retardation effects in the year of application.

Publication
Authors
T. Jacyna, M. Buczek
Keywords
Benzyladenine, branching, branch bareness, growth retardation, prohexadione-Ca, prolepsis, Promalin®, Prunus avium L., Regalis®
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