Table 4.
Effects of lead (Pb, 150 and 300 µM) alone or in combination with methyl jasmonate (MJ, 0.5 and 1 μM) on yield and yield-related attributes in rice plants
| Treatments | Tiller/hill | Grains/panicle | Filled grain percentage (%) | 1000-grain weight (g) | Harvest Index |
|---|---|---|---|---|---|
| Control | 10.33 ± 0.23a | 149.9 ± 6.15ab | 86.73 ± 2.96a | 25.87 ± 0.45ab | 73.18 ± 0.61ab |
| 0.5 µM MJ | 10.52 ± 0.18a | 147.8 ± 7.15ab | 84.72 ± 3.51a | 26.24 ± 0.28a | 73.95 ± 0.43a |
| 1 µM MJ | 10.55 ± 0.28a | 153.8 ± 7.05a | 85.47 ± 4.50a | 24.93 ± 0.72cde | 72.69 ± 0.64bc |
| 150 µM Pb | 10.65 ± 0.41a | 132.0 ± 6.66e | 73.63 ± 2.90c | 25.31 ± 0.46bcd | 69.39 ± 0.46e |
| 150 µM Pb + 0.5 µM MJ | 10.58 ± 0.34a | 143.9 ± 4.90bcd | 75.29 ± 2.51c | 25.61 ± 0.38abc | 70.91 ± 0.69d |
| 150 µM Pb + 1 µM MJ | 10.49 ± 0.35a | 146.2 ± 3.65abc | 81.72 ± 3.31ab | 25.51 ± 0.43abc | 71.97 ± 0.63 cd |
| 300 µM Pb | 8.70 ± 0.44c | 115.8 ± 5.93f | 54.95 ± 3.91d | 23.46 ± 0.33f | 56.25 ± 0.64 g |
| 300 µM Pb + 0.5 µM MJ | 9.52 ± 0.29b | 138.0 ± 4.08cde | 71.59 ± 3.46c | 24.51 ± 0.31e | 65.19 ± 0.66f |
| 300 µM Pb + 1 µM MJ | 9.40 ± 0.21b | 136.2 ± 4.56de | 76.04 ± 2.41bc | 24.63 ± 0.38de | 65.24 ± 1.02f |
Values (means ± SD, n = 5) followed by the same letter are not significantly different (P < 0.05; LSD test)