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CYTOGENETICS OF RUST RESISTANCE IN AN AGROTRICUM LINE
Abstract
Probably the most devastating disease of wheat in Nebraska has been stem rust, Puccinia graminis (Pers.) f. sp. tritici Ericks. & E. Henn. The historic epiphytotics of the Great Plains of 1935 and 1953-54 have forced the search for new sources of resistance and have stimulated breeders and pathologists to think of new schemes to protect this resistance from shifts in the pathogen population which accounted for these epiphytotics.Among the new sources searched for resistance, the Agropyron species seem to contain the largest collection of genes for rust resistance. Persons such as Armstrong (1936), Sando (1953), and Tzitzin (1940) have worked extensively on the use of Agropyron sources. The first commercial use of an Agropyron-derived gene for rust resistance in the United States is in the variety 'Agent' released by Oklahoma State University in 1969. The desirability of Agropyron-derived resistance is demonstrated by the extensive use of Agent in breeding programs all over the southern region of the Great Plains.
Subject Area
Agronomy
Recommended Citation
SHANK, AARON ROBERT, "CYTOGENETICS OF RUST RESISTANCE IN AN AGROTRICUM LINE" (1972). ETD collection for University of Nebraska-Lincoln. AAI7227426.
https://digitalcommons.unl.edu/dissertations/AAI7227426