Table 1.

The concentration and distribution of ⁵⁷Fe derived from nutrient solution (⁵⁷Fedfs) in new leaves, old leaves, stem, xylem of coarse roots, phloem of coarse roots, and fine roots of kiwifruit plants treated with -Fe, +Bic or -Fe+Bic in solution culture for 28 days. Values are means of three replicates ± SE. Different letters indicate significant differences among the treatments for the same plant part at p < 0.05. DW, dry weight.

Treatment	New Leaves	Old Leaves	Stem	Xylem of Coarse Roots	Phloem of Coarse Roots	Fine Roots
57Fedfs Concentration (mg/kg DW)
Control	141.2 ± 29.4a	132.5 ± 23.3a	154.6 ± 24.2a	95.5 ± 12.5a	216.9 ± 24.6a	398.8 ± 66.3a
-Fe	36.9 ± 2.9b	14.7 ± 5.3b	52.3 ± 15.3b	19.0 ± 2.8bc	24.4 ± 3.3b	26.9 ± 6.9c
+Bic	44.6 ± 6.3b	16.8 ± 2.7b	39.5 ± 9.1b	24.8 ± 2.4b	245.4 ± 29.8a	189.7 ± 28.8b
-Fe+Bic	0.9 ± 0.5b	0.7 ± 0.2b	1.3 ± 0.2b	2.0 ± 0.1c	12.8 ± 0.3b	31.8 ± 2.0c
57Fedfs Distribution (%)
Control	34.8 ± 3.1b	22.5 ± 0.9a	16.9 ± 2.2b	1.6 ± 0.2ab	3.4 ± 0.2b	20.9 ± 1.2c
-Fe	49.1 ± 4.9a	13.4 ± 3.6b	26.3 ± 1.1a	2.0 ± 0.1a	2.5 ± 0.1b	6.8 ± 0.7d
+Bic	25.0 ± 0.4c	10.1 ± 1.7bc	9.9 ± 1.2c	1.4 ± 0.1b	17.3 ± 2.5a	36.4 ± 3.3b
-Fe+Bic	2.6 ± 1.1d	4.5 ± 1.6c	3.3 ± 0.5d	1.6 ± 0.1ab	13.8 ± 1.0a	74.3 ± 2.2a