Table 4. Other Leafy Vegetables: Crop Species, Se Treatment (Se Source, Dose, and Application Mode), and Effects on Total (TSeC) and Organic Se Content and Other Nutritional Traits.
| species | Se source | dose | type of treatment | total Se concentrations | Se organic | other nutritional traits | references |
|---|---|---|---|---|---|---|---|
| Cichorium endivia L. (var. crispum Hegi) | sodium selenate | 0–8.0 μmol of Se L–1 | in hydroponics (fertigation or foliar spray) | in shoots (mg kg–1 DWa): fertigation, 1.94–17.61; foliar spray, 0.95–12.67 | NAb | ↑ascorbic acid and total phenolics | (132) |
| Cichorium intybus L. (cv. Anivip and Monivip) | sodium selenate | 10 mg of Se L–1 (moistening the roots) | in aeroponic system (greenhouse) | in leaves (mg kg–1 DW): 139–370 in Anivip cv., 205–460 in Monivip cv. | NA | ↑Se content | (133) |
| Ocimum basilicum L. (cv. Tigullio) | sodium selenate | 0.5–4.0 mg of Se L–1 | in hydroponics (floating system) | in stems (mg kg–1 DW): 4–21 (1st experiment), 0.98–1.25 (2nd experiment). In leaves (mg kg–1 DW): 11–32 (1st experiment), 2–5 (2nd experiment) | NA | ↑Se concentration, ↑rosmarinic acid content | (134) |
| Ocimum basilicum L. (var. Red Rubin and Dark Green) | sodium selenate | 25 mg of Se m–2 | foliar applied | in leaves (mg kg–1 DW): 2.31–7.01 in Red Rubin var. (first harvest), 1.71–4.08 in Dark green var. (1st harvest) | NA | ↑Se content | (55) |
| Ocimum basilicum L. (var. Dark green and Red Opal) | sodium selenate | 25 mg of Se m–2 | foliar applied | NA | NA | ↑antioxidant activity, ↑total polyphenol content | (135) |
| 50 mg of Se m–2 | |||||||
| Ocimum basilicum L. | not reported | 0–120 mg of Se L–1 | pot experiment (foliar application) | not reported | NA | ↓Chlb, ↑Car, ↑antioxidant activity, ↑soluble phenol, ↑proline content | (52) |
| Ocimum basilicum L. | sodium selenate | 1–50 mg of Se L–1 | pot experiment (foliar application) | in shoots (mg kg–1 DW): 0.95–150 | NA | ↑anthocyanin and phenolics, ↓MDA decreased, ≈pigments, ↑total Se content | (53) |
| Spinacia oleracea L. | sodium selenate | 0–5.2 μM | in floating system | in leaves (μg kg–1 DW): 9.3–15.5 | NA | ↑Se content, ↓sugars, ≈sucrose, ≈nitrate content | (50) |
| Spinacia oleracea L. (cv. Missouri) | sodium selenite | 1–10 mg of Se L–1 | in hydroponics | in shoots (mg g–1 DW): 1.71–3.89 | NA | ↑micronutrient, ↑antioxidant capacity | (51) |
a
DW: dry weight.
b
NA: not analyzed.