Table 6.
Proportion (%) of lateral root length to total root length across soil depth of 12 B. humidicola accessions (plus three checks) grown under drained or waterlogged soil for 21 days. Data shown are means of four replicates ± SE. Asterisks (*) represent significant differences between treatments for each accession (statistical significance at the *0.05, **0.01 and ***0.001 probability levels). NS, not significant. Panova and LSD values exclude checks.
| Accession | Proportion (%) of lateral root length by soil profile |
||||||
|---|---|---|---|---|---|---|---|
| 0–10 cm |
10–20 cm |
20–30 cm |
30–77 cm | ||||
| Drained | Waterlogged | Drained | Waterlogged | Drained | Waterlogged | Drained | |
| CIAT 26570 | 7.1 ± 0.5 | 49.5 ± 3.3*** | 12.6 ± 1.2 | 22.0 ± 3.3* | 10.1 ± 0.9 | 3.0 ± 0.4*** | 57.3 ± 3.9 |
| CIAT 679 | 11.0 ± 0.6 | 42.7 ± 2.9*** | 9.2 ± 0.6 | 13.3 ± 1.2* | 10.9 ± 1.8 | 6.5 ± 1.0 | 54.0 ± 1.2 |
| CIAT 6133 | 6.7 ± 1.9 | 26.7 ± 3.9** | 13.4 ± 2.0 | 12.4 ± 0.9 | 11.0 ± 0.8 | 6.5 ± 0.9** | 54.5 ± 4.6 |
| CIAT 16182 | 7.7 ± 0.7 | 43.3 ± 4.1*** | 15.5 ± 2.0 | 23.2 ± 2.4* | 13.8 ± 1.4 | 2.0 ± 0.1*** | 48.0 ± 1.7 |
| CIAT 6707 | 10.2 ± 1.4 | 40.9 ± 2.0*** | 14.4 ± 1.3 | 16.5 ± 0.7 | 14.3 ± 1.0 | 7.8 ± 1.0*** | 45.6 ± 2.5 |
| CIAT 16886 | 13.9 ± 1.4 | 25.2 ± 3.0* | 18.8 ± 1.4 | 8.7 ± 1.9** | 11.0 ± 1.3 | 2.1 ± 0.2*** | 18.0 ± 4.1 |
| CIAT 26152 | 12.9 ± 1.5 | 25.6 ± 0.1*** | 11.3 ± 2.6 | 15.4 ± 0.9 | 10.8 ± 2.3 | 1.8 ± 0.1** | 50.7 ± 5.2 |
| CIAT 6013 | 8.7 ± 1.1 | 55.2 ± 4.3*** | 12.8 ± 1.6 | 16.3 ± 1.6 | 12.5 ± 0.8 | 2.1 ± 0.0*** | 52.8 ± 3.0 |
| CIAT 26416 | 11.8 ± 0.9 | 45.0 ± 2.8*** | 16.0 ± 1.1 | 9.5 ± 0.5** | 14.9 ± 1.2 | 3.0 ± 0.8*** | 41.8 ± 4.3 |
| CIAT 26181 | 8.8 ± 0.6 | 40.8 ± 1.3*** | 14.7 ± 2.9 | 17.7 ± 1.8 | 12.6 ± 1.4 | 2.1 ± 0.5** | 48.1 ± 1.5 |
| CIAT 16866 | 7.5 ± 0.4 | 37.0 ± 3.4*** | 11.5 ± 1.3 | 24.3 ± 4.8* | 13.9 ± 2.7 | 3.0 ± 0.5** | 48.7 ± 5.7 |
| CIAT 16888 | 12.2 ± 1.4 | 23.0 ± 2.5** | 11.7 ± 1.4 | 11.8 ± 1.2 | 12.0 ± 1.1 | 2.1 ± *** | 41.9 ± 1.1 |
| Panova | 0.0001 | 0.0000 | 0.0375 | 0.0000 | 0.3646 | 0.0000 | 0.0000 |
| LSD0.05 | 5.4 | 14.5 | 8.4 | 10.2 | – | 2.8 | 16.7 |
| Checks | |||||||
| B. brizantha | 13.0 ± 1.7 | 38.2 ± 2.5** | 13.7 ± 1.5 | 2.6 ± 0.4*** | 16.8 ± 0.9 | – | 35.9 ± 4.2 |
| B. ruziziensis | 5.8 ± 2.8 | 48.7 ± 3.8** | 7.7 ± 1.2 | – | 7.8 ± 1.0 | – | 42.9 ± 4.2 |
| B. hybrid | 12.3 ± 1.7 | 33.3 ± 3.2* | 11.4 ± 1.0 | – | 12.3 ± 1.0 | – | 39.3 ± 3.4 |