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A new greenbug biotype



A new greenbug biotype



Crop Science 22(4): 847-850



Amigo, a wheat germplasm line resistant to Schizaphis graminum and selections from crosses and backcrosses of wheat to Amigo were evaluated for resistance to collections of the insect made each year from 1977 to 1980. Amigo, its derivatives and the rye variety Insave were resistant to field collections of biotype C until January, 1980, when Amigo and its derivatives failed to survive an infestation of progeny from a November, 1979, collection at Bushland, Texas.

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Accession: 001038780

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