FIGURE 5.

Comparison of morphological parameters measured in the Picual scion grafted on different genotypes of the SILVOLIVE collection. Potted plants grown under greenhouse conditions were used 1 year after grafting. The parameters measured were: The longest secondary shoot length (A); the plant height (B); the accumulated secondary shoot length calculated as the sum of all secondary shoots length (C); the total number of nodes (D); the basal stem diameter at 5 cm from ground (E); the total number of secondary stems (F); the branching efficiency (G); and the branching frequency (H). Bars are the average of 7–10 plants. Asterisks indicate significant differences with self-grafted Picual plants labeled as red bar. The data were subject to analysis of variance (ANOVA) and multiple comparisons of means were analyzed by Tukey’s HSD (honestly significant difference). Multiple range test was calculated using the Statistical Analysis System (STATGRAPHICS Centurion XVI software; http://www.statgraphics.com; StatPoint Technologies, Warrenton, VA, United States).