Table 1.
The effect of inter-population and intra-species competition, on dry weight biomass production, plant height, number of tillers, and number of spikes, on untreated plants of sensitive (AL) and target-site (TS) resistant (MH and NO) Lolium rigidum populations.
| Population | Dry weight, g plant-1 | Plant height, cm | No. of tillers, plant-1 | No. of spikes, plant-1 |
|---|---|---|---|---|
| Inter-population | ||||
| AL | 16.4 ± 1.9a | 44.0 ± 3.7a | 3.3 ± 0.1a | 1.6 ± 0.3a |
| NO | 11.9 ± 2.2a | 41.4 ± 3.8a | 3.0 ± 0.2a | 1.5 ± 0.2a |
| MH | 10.3 ± 1.1a | 34.9 ± 3.4a | 2.3 ± 0.1b | 0.6 ± 0.1b |
| Intra-species (relative value1) | ||||
| AL | 0.06 ± 0.1a | 1.0 ± 0.1a | 0.9 ± 0.1a | 0.8 ± 0.1b |
| NO | 0.11 ± 0.2a | 1.1 ± 0.1a | 0.8 ± 0.1a | 1.0 ± 0.2b |
| MH | 0.05 ± 0.1a | 1.2 ± 0.1a | 1.0 ± 0.1a | 1.6 ± 0.09a |
Different letters indicate significant differences (P ≤ 0.05) between plants from three Lolium rigidum populations by Tukey LSD test.1Intra-species competition calculated as a relative value in comparison to the average value that was recorded for different parameters in the inter-population competition.