Table 3.
Maturity index (MI), plant-parasitic index (PPI), channel index (CI) and Shannon diversity (H′) of different cropping sequences at the University of Limpopo (UL) and at Agricultural Research Council-Vegetable, Industrial and Medicinal Plants (ARC-VIMP).
| Sequence | Location | Treatment | MI | PPI | CI | H′ |
|---|---|---|---|---|---|---|
| 1 | UL | P | 2.00 | 3.00 | 0.00 | 0.93 |
| SSS | 1.78 | 3.00 | 0.00 | 1.61 | ||
| CA | 1.67 | 3.00 | 20 | 1.83 | ||
| PV | 1.00 | 3.00 | 100 | 0.84 | ||
| ARC-VIMP | P | 2.00 | 3.00 | 0.00 | 0.99 | |
| SSS | 1.50 | 3.00 | 0.00 | 1.41 | ||
| CA | 0.00 | 3.00 | 0.00 | 1.04 | ||
| PV | 0.00 | 3.00 | 0.00 | 0.00 | ||
| 2 | UL | P → P | 1.86 | 3.12 | 33.30 | 2.00 |
| SSS → P | 1.00 | 3.00 | 0.00 | 1.28 | ||
| CA → P | 1.43 | 3.00 | 5.88 | 1.84 | ||
| PV → P | 1.70 | 3.00 | 14.29 | 1.51 | ||
| ARC-VIMP | P → P | 2.00 | 3.00 | 100.00 | 1.44 | |
| SSS → P | 1.00 | 3.16 | 0.00 | 1.45 | ||
| CA → P | 1.59 | 3.00 | 0.00 | 1.42 | ||
| PV → P | 1.65 | 3.00 | 9.68 | 1.91 | ||
| 3 | UL | P → P → P | 1.00 | 3.00 | 0.00 | 1.00 |
| SSS → P → SSS | 1.00 | 3.06 | 0.00 | 1.49 | ||
| CA → P → CA | 1.50 | 2.67 | 20.00 | 1.36 | ||
| PV → P → PV | 2.00 | 3.50 | 0.00 | 1.68 | ||
| ARC-VIMP | P → P → P | 0.00 | 3.00 | 0.00 | 0.00 | |
| SSS → P → SSS | 0.00 | 3.00 | 0.00 | 1.05 | ||
| CA → P → CA | 2.00 | 3.00 | 0.00 | 1.61 | ||
| PV → P → PV | 1.67 | 3.11 | 20.00 | 1.88 | ||
| 4 | UL | P → P → P → P | 2.00 | 3.00 | 0.00 | 0.49 |
| SSS → P → SSS → P | 2.86 | 3.00 | 100.00 | 0.29 | ||
| CA → P → CA → P | 2.00 | 3.00 | 0.00 | 0.47 | ||
| PV → P → PV → P | 2.00 | 3.00 | 0.00 | 0.30 | ||
| ARC-VIMP | P → P → P → P | 2.38 | 3.00 | 0.00 | 0.30 | |
| SSS → P → SSS → P | 3.06 | 3.00 | 0.00 | 1.05 | ||
| CA → P → CA → P | 2.25 | 3.00 | 100.00 | 0.66 | ||
| PV → P → PV → P | 2.00 | 3.00 | 100.00 | 0.77 |
Where P = potato, SSS = sweet stem sorghum, Ca = Cucumis africanus, PV = potato-Velum cropping sequences.