Increase of Mycosphaerella blight in field pea through plant injury
Date
2000-02-22
Authors
Banniza, S.
Vandenberg, A.
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Abstract
Mycosphaerella blight, caused by Mycosphaerella pinodes, is a major constraint to field pea production in the prairies. Controlling the disease by developing better genetic resistance is a major goal of field pea breeding programs around the world. There are no major resistant genes to this disease and breeding relies on incremental increases in tolerance through hybridization and selection of material with slightly improved tolerance. Disease incidence and severity appear to be promoted by plant injury, caused, for example, by heavy thunder storms or hail during the growing season. Experiments were conducted at the Crop Development Center to quantify the effect of plant injury on disease development. The objective of this study was to investigate the possibility of exploiting plant injury as a tool to develop screening techniques for disease nurseries without irrigation and under low rain incidences.
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Soils and Crops Workshop