Table 7.
Effects of genotypes and NH4:NO3 ratio on fiber, protein, α-tocopherol and β-carotene content (second experiment).
| Fiber | Protein | α-Tocopherol | β-Carotene | |
|---|---|---|---|---|
| g 100 g−1 FW | mg 100 g−1 FW | |||
| Genotype (G) | ||||
| Broccoli raab | 0.355 ± 0.220 | 2.35 ± 0.21 b | 2.02 ± 0.59 b | 3.57 ± 0.95 b |
| Broccoli | 0.517 ± 0.095 | 2.34 ± 1.09 b | 5.08 ± 2.47 b | 5.35 ± 1.54 a |
| Cauliflower | 0.681 ± 0.259 | 3.12 ± 0.32 a | 10.45 ± 7.71 a | 6.48 ± 2.43 a |
| NH4:NO3 (%) (R) | ||||
| 5–95 | 0.493 ± 0.073 | 2.31 ± 0.19 | 4.29 ± 3.76 | 4.37 ± 1.09 b |
| 15–85 | 0.459 ± 0.229 | 2.40 ± 0.21 | 4.98 ± 4.64 | 4.60 ± 1.14 b |
| 25–75 | 0.600 ± 0.337 | 3.01 ± 1.01 | 7.86 ± 7.58 | 6.29 ± 2.69 a |
| Significance | ||||
| G | NS | ** | * | ** |
| R | NS | NS | NS | ** |
| G*R | NS | * | NS | NS |
Significance: **, and * respectively for p ≤ 0.01, and p ≤ 0.05; NS, not significant. Means values (± standard deviation) within each column and main effect followed by different letters are significantly different, according to SNK test (p = 0.05).