The incidence and spatial patterns of wheat plants infected by Fusarium graminearum Group 1 [soil borne fungus] and the effects of crown rot on yield
1991
Klein, T.A. | Ellison, F.W. (Sydney Univ., Narrabri (Australia). Wheat Research Centre) | Burgess, L.W. (Sydney Univ. (Australia). Dept. of Plant Pathology and Agricultural Entomology)
In 6 fields over a 4-year period, the incidence of infected plants declined in fields where wheat was sown each year, where there was a bare fallow of 18 months, and where sunflowers were grown in one season. The pattern of infected plants tended to be regular (uniform) where the incidence was particularly high (96 percent); where a clustered pattern was observed, the incidence was between 12 and 65 percent. A random pattern was observed at a number of sites. There was a positive association between loss in potential yield and the incidence of infection, basal browning of plants and whiteheads. Losses of up to 89 percent were recorded.
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