Table 1.
Effect of Si nutrition on dry weight (DW) of root, old leaf (L1), and mature leaf (L2) and FW, DW, and chlorophyll content (SPAD units) of the youngest fully expanded leaves of barley.
| Youngest leaf |
||||||
|---|---|---|---|---|---|---|
| Treatments | DW per root (mg) | DW per old leaf (mg) | DW per mature leaf (mg) | FW per leaf (mg) | DW per leaf (mg) | SPAD |
| C | 6.8 ± 1.2 ab | 13.3 ± 0.5 a | 13.0 ± 1.7 a | 219.2 ± 1.7 a | 21.3 ± 0.2 a | 29.7 ± 2.7 a |
| -Si | 6.6 ± 0.7 b | 11.9 ± 0.7 b | 12.3 ± 0.6 a | 177.5 ± 7.3 c | 17.3 ± 0.7 c | 10.2 ± 1.5 b |
| +Si | 7.9 ± 0.8 a | 13.0 ± 0.3 a | 13.0 ± 0.0 a | 210.9 ± 4.6 b | 20.6 ± 0.4 b | 27.5 ± 3.3 a |
Plants were grown as described in the legend of Figure 1 (C- control plants grown optimally supplied with Fe; -Si – plants grown in the absence of Fe and Si; +Si – plants grown in the absence of Fe and supplied with Si). Data shown are means ± s.d. (n = 3). Significant differences (P < 0.05) between treatments are indicated by different letters.