Table 3.
Incidence and densities of Aspergillus section Flavi in maize and groundnut samples across three agroecological zones (AEZs) in Ghana
| Incidence (%)z | CFU/g | |||||||
|---|---|---|---|---|---|---|---|---|
| AEZx | Crop | ny | L | S | Ap | At | Mean | Range |
| HF | Maize | 1,350 | 95.3 a | 4.4 a | 0.0 b | 0.3 a | 11,819 a | 4–500,000 |
| Groundnut | 383 | 92.1 a | 6.9 a | 0.5 a | 0.5 a | 2,238 a | 2–40,000 | |
| DS | Maize | 1,190 | 95.0 a | 4.7 b | 0.0 b | 0.3 a | 51,940 a | 5–105,000 |
| Groundnut | 1,010 | 88.1 b | 10.6 a | 1.0 a | 0.3 a | 15,122 b | 2–666,667 | |
| SGS | Maize | 720 | 93.1 a | 6.5 a | 0.0 a | 0.4 a | 36,428 a | 5–540,000 |
| Groundnut | 430 | 94.6 a | 4.2 a | 0.0 a | 1.2 a | 2,206 b | 2–36,000 | |
HF = Humid Forest, DS = Derived Savanna, and SGS = Southern Guinea Savanna.
n = Number of isolates examined.
Within an AEZ, incidence of each fungus type (L = A. flavus L morphotype, S = isolate with S morphotype, Ap = A. parasiticus, At = A. tamarii) is compared between crops. For example, in HF, frequencies of the L morphotype were not significantly different in maize and groundnut. Means with the same letter are not significantly different according to Fisher’s least significant difference test (α = 0.05). Values for fungal incidences were arcsine square root transformed prior to analyses. Values for fungal densities were log transformed prior to analysis.