ROOTSTOCKS > APPLES
The vigour induced to grafted trees is exposed in Figure 1, compared to the traditional rootstocks, in particular M.9 selections.
Different reports from Brazil in apple producing areas with limited chilling hours evidenced the good yield, high yield efficiency and early yielding induced by G.203 on different apple cultivars. In Table 1 annual and cumulative yields of ‘Maxi Gala’ conducted in central axis using a planting distance of 4 x 1 m are exposed. Figures 2 and 3 showed the effect of rootstock on branching capacity and budding uniformity on four years old trees of ‘Maxi Gala’ grafted on M.9 and G.213 rootstocks.
The vigour induced to grafted trees is exposed in Figure 4, compared to the traditional rootstocks, in particular M.9 selections.
Different reports from USA and Europe, in this case from the EUFRIN, evidenced the good performance of different rootstocks from “G” series, in particular the G.41 and G.11 grafted with the cultivars ‘Brookfield® Gala’ and ‘Golden Reinders®’. Annual and cumulative yields of 6 years old trees of ‘Brookfield® Gala’ grated on different rootstocks are exposed in Figure 5 compared with reference rootstocks, corresponding the best results to G.11 and G.41.
When G.41 and G.11 were tested in a replanted situation the production was also superior to the reference rootstock, as illustrated in Figure 6. In both cases fruit size were not affected by the rootstock whereas I Class of fruit colour (>90% fruit colour) was increased by 28 and 26%, respectively, compared to M9 Pajam®2. Also in both trials yield efficiency was equal or better compared to M9 Pajam®2, with a similar vigor or increased in the case of G.41.