Table 1.
Effects of Si amendment and Nilaparvata lugens infestation on silicification of rice leaf sheaths.
| Treatments | Rows of silica cells per 1 mm2 | No. silica cells per 1-mm row | Area of silica cells (µm2) | Length of silica cells (µm) | Width of silica cells (µm) |
|---|---|---|---|---|---|
| −Si−BPH | 7.6 ± 0.16 a | 40.4 ± 0.25 ab | 236.6 ± 3.82 a | 19.9 ± 0.23 a | 17.4 ± 0.22 a |
| −Si + BPH | 7.9 ± 0.07 a | 39.8 ± 0.32 a | 240.4 ± 3.01 ab | 20.5 ± 0.22 ab | 18.1 ± 0.22 b |
| + Si−BPH | 8.7 ± 0.23 b | 41.7 ± 0.14 c | 268.6 ± 3.94 c | 20.8 ± 0.22 b | 19.0 ± 0.20 c |
| + Si + BPH | 9.0 ± 0.25 b | 40.8 ± 0.19 b | 251.7 ± 2.77 bc | 21.5 ± 0.15 bc | 18.5 ± 0.16 bc |
| n | 15 | 75 | 100 | 100 | 100 |
+Si = silicon amendment at 112 mg Si/L nutrient solution to rice plants, −Si = no silicon amendment. +BPH = infestation by N. lugens, −BPH = no infestation. Values are means ± SE (n, number of biological replicates). Different letters following the means in the same column denote significant difference at P < 0.05 via Tukey’s multiple range tests.