Table 1.
Leaf, stem, and total fresh weight; leaf, stem, and total dry weight; fresh yield; and dry matter of basil under untreated control, copper sulfate (Cu), copper complexed with amino acids and peptides (Cu-VPH), vegetal protein hydrolysate (VPH), and Cu-VPH enriched with VPH (VPH+Cu-VPH) treatments.
| Treatments | Leaf fresh weight | Stem fresh weight | Total fresh weight | Leaf dry weight | Stem dry weight | Total dry weight | Fresh yield | Dry matter |
|---|---|---|---|---|---|---|---|---|
| g plant–1 | kg m–2 | % | ||||||
| Control | 62.56 ± 0.23 c | 29.39 ± 0.42 b | 91.95 ± 0.53 c | 6.97 ± 0.07 b | 3.39 ± 0.04 d | 10.35 ± 0.08 c | 1.84 ± 0.01 c | 11.26 ± 0.03 |
| Cu | 64.22 ± 0.80 c | 31.25 ± 0.93 b | 95.47 ± 1.67 c | 6.94 ± 0.06 b | 3.87 ± 0.07 bc | 10.80 ± 0.12 bc | 1.91 ± 0.03 c | 11.32 ± 0.12 |
| Cu-VPH | 66.38 ± 0.52 b | 34.47 ± 0.73 a | 100.85 ± 1.25 b | 7.42 ± 0.14 b | 3.71 ± 0.08 c | 11.14 ± 0.19 bc | 2.02 ± 0.03 b | 11.04 ± 0.06 |
| VPH+Cu-VPH | 73.07 ± 0.14 a | 36.00 ± 0.43 a | 109.07 ± 0.57 a | 8.32 ± 0.26 a | 4.39 ± 0.07 a | 12.70 ± 0.32 a | 2.18 ± 0.01 a | 11.64 ± 0.24 |
| VPH | 67.52 ± 0.27 b | 34.69 ± 0.28 a | 102.21 ± 0.37 b | 7.67 ± 0.19 ab | 4.00 ± 0.02 b | 11.68 ± 0.19 b | 2.04 ± 0.01 b | 11.42 ± 0.15 |
| Significance | *** | *** | *** | *** | *** | *** | *** | ns |
ns and *** denote nonsignificant or significant at p ≤ 0.001, respectively. Different letters within each column indicate significant differences according to Tukey HSD test (p = 0.05). All data are expressed as mean ± standard error, n = 3.