Fig. 4

Impact of rootstock and scion vigour (a) and flowering capacity (b) on selected traits (trial 1, age 18 except for HT, age 10). For both rootstocks and scions (rootstock/scion), V and v denote high and low vigour; F and f denote heavy and low flowering. Different letters indicate significant differences between rootstock/scion combination (p ≤ 0.05)