Reference Report for ADL88062245
| Title: | Relationships between the spatial pattern and number of apothecia of Sclerotinia sclerotiorum and stem rot of soybean |
| Authors: | Boland, G.J., Hall, R. |
| Source: | Plant Pathol. 1988, 37(3):329-336 |
| Abstract: | Relationships between the spatial patterns and numbers of apothecia of Sclerotinia sclerotiorum and incidence of sclerotinia stem rot of soybean (Glycine max) were investigated in a field plot in 1981 and 1982. Apothecia and disease were both spatially aggregated and were most consistently described by the negative binomial distribution, although the Poisson-binomial and logarithmic with zeros distributions sometimes gave significant fits to data. Numbers of apothecia and disease incidence were correlated within quadrats of 1.4 m2 (r=0.04-0.57), 36 m2 (r = 0.44-0.87) and 108 m2 (r = 0.44-0.99). The results suggest that disease incidence was determined primarily by inoculum produced within the field. This information may be important in developing models for disease production. |
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