Table 2.
Yield component, concentration of oil, protein and glucosinolate concentrations and linoleic acid (ω-6): linolenic acid (ω-3) ratio (ω-6: ω-3 ratio) in mature seeds from rapeseed cultivated with 60 (60 N) or 160 kg of N ha−1 (160 N) and supplied with or without Si (12 kg ha−1: 60 N + Si and 160 N + Si). Values correspond to the mean ± SE for n = 3. The data obtained for seeds from plants treated with silicon (60 N + Si and 160 N + Si) were compared to their respective control * indicates significant difference at p ≤ 0.05.
| Yield (kg ha−1) | Thousand-Seed Weight (g) | Glucosinolate Concentration (µg g−1 DW) | Oil Concentration (% DW) | ω-6:ω-3 Ratio | Protein Concentration (% DW) | |
|---|---|---|---|---|---|---|
| 60 N | 2696.96 ± 217.90 | 5.27 ± 0.33 | 13.10 ± 0.85 | 49.70 ± 0.96 | 2.37 ± 0.27 | 14.77 ± 0.13 |
| 60 N + Si | 3122.13 ± 74.37 | 4.92 ± 0.21 | 15.43 ± 0.55 | 50.45 ± 0.55 | 2.42 ± 0.13 | 14.58 ± 0.45 |
| 160 N | 3644.37 ± 182.48 | 4.81 ± 0.40 | 17.97 ± 0.66 | 47.4 ± 0.67 | 2.48 ± 0.06 | 16.50 ± 0.10 |
| 160 N + Si | 4247.20 ± 75.23 * | 4.54 ± 0.28 | 16.53 ± 1.54 | 47.93 ± 0.42 | 2.24 ± 0.10 | 17.33 ± 0.26 |