Fig. 5From: The activation of iron deficiency responses of grapevine rootstocks is dependent to the availability of the nitrogen formsPlant iron contents. (A) Iron content of young leaves (yL), (B) old leaves (OL), and (C) in roots of the two grapevine rootstocks under the treatments: N1A0/+Fe; N1A0/-Fe; N1A1/+Fe; N1A1/-Fe. Results were obtained after 28 days of treatment application with both grapevine rootstocks. Values shown are means ± standard error. Significant differences between treatments for each rootstock are indicated with different letters (α < 0.05, Welch ANOVA and Tukey or Games-Howell post hoc test, N = 5 per treatment and rootstock)Back to article page