Table 4 Effect of CUR-PVA nano-composite (CUR–PVA) concentrations (0, 20, 40 and 60 mg L−1) on growth indices of sunflower cultivated under salt stress (S0, tap water; S1, 3000 ppm)
Treatments | Plant height (cm) | Leaves number/plant | Shoot fresh weight (g) | Shoot dry weight (g) | Leaf area (cm2/plant) | |
|---|---|---|---|---|---|---|
S0 | 43.50 | 13.66 | 8.32 | 4.53 | 33.65 | |
S1 | 37.46 | 12.16 | 7.21 | 3.75 | 27.00 | |
LSD 5% level | 1.182 | 1.089 | 0.945 | 0.637 | 2.338 | |
CUR–PVA (mg L−1) | 0 | 33.17 | 11.67 | 5.52 | 2.83 | 11.67 |
20 | 45.50 | 13.83 | 9.86 | 5.41 | 13.83 | |
40 | 44.00 | 13.50 | 8.41 | 4.52 | 13.50 | |
60 | 39.58 | 12.67 | 7.28 | 3.81 | 12.67 | |
LSD 5% level | 1.671 | 1.540 | 1.337 | 0.901 | 3.307 | |
S0 | 0 | 38.67 ± 1.15 | 12.33 ± 0.58 | 6.27 ± 1.26 | 3.37 ± 0.40 | 12.33 ± 0.58 |
20 | 48.00 ± 1.00 | 15.00 ± 1.00 | 10.30 ± 1.17 | 5.93 ± 1.26 | 15.00 ± 1.00 | |
40 | 47.33 ± 0.58 | 14.33 ± 0.58 | 8.44 ± 0.68 | 4.61 ± 1.19 | 14.33 ± 0.58 | |
60 | 40.00 ± 0.00 | 13.00 ± 2.05 | 8.28 ± 1.54 | 4.20 ± 0.65 | 13.00 ± 2.05 | |
S1 | 0 | 27.67 ± 1.53 | 11.00 ± 1.00 | 4.77 ± 1.20 | 2.29 ± 0.08 | 11.00 ± 1.00 |
20 | 43.00 ± 3.00 | 12.67 ± 1.15 | 9.41 ± 0.31 | 4.88 ± 0.18 | 12.67 ± 1.15 | |
40 | 40.67 ± 0.58 | 12.67 ± 1.15 | 8.38 ± 1.12 | 4.43 ± 0.62 | 12.67 ± 1.15 | |
60 | 39.17 ± 0.76 | 12.33 ± 0.58 | 6.28 ± 0.98 | 3.42 ± 0.59 | 12.33 ± 0.58 | |
LSD 5% level | 2.364 | 2.178 | 1.890 | 1.275 | 4.677 | |