Table 1.
Final root-knot (Meloidogyne species) nematodes population densities per 250 g of soil collected from potato monoculture (P–P), sweet stem sorghum-potato (SSS–P), Cucumis africanus-potato (C–P) and potato(Velum)-potato (PV–P) cropping sequences and tuber yield recorded at the Agricultural Research Council-Vegetable, Industrial and Medicinal Plants (ARC-VIMP) and University of Limpopo.
| Cropping sequence | ARC-VIMP | University of Limpopo | ||
|---|---|---|---|---|
| Final nematodes | Tuber yield (g/plant) | Final nematodes | Tuber yield (g/plant) | |
| P–P | 910.00a ± 54.10 | 270.42b ± 19.62 | 2646.67a ± 186.95 | 190.26b ± 12.30 |
| SSS–P | 713.33a ± 69.02 | 293.09ab ± 17.63 | 1390.00ab ± 94.06 | 198.11b ± 11.67 |
| C–P | 450.00ab ± 21.13 | 313.09a ± 10.59 | 550.00b ± 61.05 | 232.63a ± 13.80 |
| PV–P | 173.33b ± 32.93 | 321.81a ± 16.93 | 643.33b ± 61.84 | 238.22a ± 16.41 |
Means ± standard errors sharing the same lowercase letter within cropping sequences (column) were not significantly different (p ≤ 0.05) within a sequence according to Nemenyi’s post-hoc test and Fischer’s Least Significant Difference test for soil nematode population density and tuber yield mass, respectively.