Mass (Gravimetric) Selection in Diseased Nurseries
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Since its beginning more than 25 years ago, the Mexican oat breeding programme has utilised pedigree selection. The programme began by importing germplasm from the USDA and testing it at three sites, Chapingo, Celeya (winter crop) and Chihuahua. Priority traits include stem rust resistance, earliness, kernel quality and grain yield. As oat acreage increased in the Mexico City area (near Chapingo), stem rust became a serious problem because inoculum is always present and climatic conditions in the area are usually very favourable for stem rust development.
KeywordsStem Rust Mass Selection Stem Rust Resistance Crown Rust Check Cultivar
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