The effect of summer pruning on vegetative and reproductive potential of apple cvs Jonagold and Granny Smith

Abstract

The effect of single and double summer pruning on major parameters of vegetative and reproductive potentials of apple cvs Jonagold and Granny Smith under the spindle and regular palmette systems with angled branches. Significant to very significant effect of this pomotechnical measure on growth, cropping and fruit quality under both training systems under identical growing conditions. Due to the aforementioned, summer pruning ought to be regularly performed in highly intensified plantings, with intensity and time of performance adjusted both to the biological particularities of certain cultivars and the employed growing system.

U radu su prikazani dvogodišnji rezultati ispitivanja uticaja zelene rezidbe na vegetativni i reproduktivni potencijal jabuke Jonagold i Greni Smit. Uporedo su praćena stabla kontrolne varijante (bez primene zelene rezidbe). Zelena rezidba na stablima navedenih sorti jabuke izvođena je u prvoj polovini juna i polovinom avgusta (prva varijanta), odnosno samo u prvoj polovini juna (II varijanta). Utvrđeni su pozitivni efekti zelene rezidbe na ispitivane parametre, zbog čega se preporučuje njeno redovno izvođenje kod stabala u rodu. Dvokratna zelena rezidba dala je nešto povoljnije rezultate, što ne mora biti pravilo za sve sorte i različite agroekološke uslove.