AN EVALUATION OF TWO PEACH VARIETIES NEW TO THE CZECH REPUBLIC, GROWN ON SIX DIFFERENT ROOTSTOCKS

This study describes the influence of six different peach rootstocks (GF 677, Lesiberian, Ishtara, Mrs 2/5, Julior and Pumiselect) on the following phenological stages and yield parameters – onset of flowering, blossom intensity, fruit set, onset of ripening and fruit yields – in the varieties ‘Royal Glory’ and ‘Symphony’, planted in 2004 and observed during the years 2008-2011. The control variety was ‘Redhaven’. The spindle bush and open vase training systems were compared for both varieties grown on all the rootstocks. The highest fruit set was observed on the rootstocks GF 677, Ishtara and Julior. There were no significant differences seen in the onset of flowering between any of the rootstocks. Overall, the best results were achieved with the rootstocks GF 677, Ishtara and Julior.