Biological and productive characteristics of apple cultivars resistant or tolerant to scab [Venturia inaequalis (Cooke) Wint.]

Abstract

Biological and productive characteristics of 11 scab-resistant apple cultivars were studied in the period 2011-2012 on the estate of the monastery Žiča in Central Serbia. Control cultivar for comparison was 'Idared', as the most spread apple cultivar in Serbia. The earliest blooming was found in cultivar 'Topaz', and the latest in cultivar 'Rewena'. Based on the time of fruit maturation, three cultivars belong to the summer and autumn group, and five cultivars belong to the winter group. The strongest vegetative growth was found in cultivars 'Šampion', 'Prima', and 'Florina', while the highest yield was obtained in cultivars 'Remura' and 'Goldrush'. The best fruit quality was found in cultivars 'William's Pride', 'Rewena', 'Enterprise' and 'Florina'.

U periodu 2011-2012. godine na imanju manastira Žiča proučavane su biološke i proizvodne osobine 11 sorti jabuke otpornih ili tolerantnih na prouzrokovača čađave krastavosti, uporedo sa sortom Idared koja je uzeta kao standard. Najranije cvetanje od ispitivanih sorti imala je Topaz, a najkasnije Rewena. Imajući u vidu vreme zrenja po tri sorte pripadaju grupama letnjih i jesenjih, a pet sorti grupi zimskih sorti. Najjači vegetativni rast imale su sorte Šampion, Prima i Florina, a najveći prinos imale su sorte Remura i Goldrush. Dobrim kvalitetom ploda ističu se sorte William's Pride, Rewena, Enterprise i Florina.