Table 9.
Leaf greenness (f:i), increase in shoot biomass (DW g) and iron concentration in shoot leaves (DW ppm) of Carrizo citrange (CC), C. macrophylla (CM) and the somatic hybrids SMC-58 and SMC-73 cultivated in greenhouse conditions for 10 weeks, either in control conditions (20 μM Fe-EDDHA) or in iron-deficient conditions (10% (v/v) CaCO3 10 mM NaHCO3, 2 μM Fe-EDDHA).
| Treatment | Genotype | Leaf greenness (f/i)X | Increase in shoot biomass (DW g) | Iron concentration (ppm) |
|---|---|---|---|---|
| Control | CC | 0.84 a | 1.36 b | 48.3 a |
| CM | 1.11 b | 1.76 c | 46.7 a | |
| SMC-58 | 1.02 b | 0.89 a | 38.7 a | |
| SMC-73 | 0.89 ab | 1.21 b | 43.5 a | |
| Iron-deficient | CC | 0.30 a | 0.42 a | 16.5 a |
| CM | 0.70 c | 0.56 b | 33.1 b | |
| SMC-58 | 0.56 b | 0.52 b | 23.9 ab | |
| SMC-73 | 0.52 b | 0.61 b | 21.7 ab |
X
SPAD final/initial, values below 1 indicate greenness decrease. Values are the mean of six plants (n = 6). Different letters in each column indicate significant differences for P ≤ 0.05 on multiple range Duncan's test.