Fig. 1

Examples of three vigour classes of trees in the second year of growth after grafting. Trees shown are 1) small, 2) moderate, 3) vigorous ‘Old Home’ x ‘Louise Bonne de Jersey’ pear rootstocks grafted with ‘Comice’. The wires indicate the height of the trees, with the wire being 0.8, 1.3, 1.8, 2.3, 2.75 m from the ground, lowest to the top respectively