Development of a triticale resistant to the greenbug: An historical perspective |
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| Authors: | E E Sebesta E A Wood Jr D R Porter J A Webster |
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| Institution: | (1) United States Department of Agriculture, Agricultural Research Service, 1301 N. Western, 74075 Stillwater, Oklahoma, USA |
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| Abstract: | Summary A greenbug Schizaphis graminum (Rondani)] resistant strain of rye (Secale cereale L.)  Insave F.A. from Argentina was crossed with Chinese Spring wheat (Triticum aestivum L.) and also with Elbon and Balbo cultivars of common rye. Juvenile plants of the primary wheat X rye hybrid were treated with colchicine. Partially fertile amphidiploids were obtained that are resistant to greenbug Biotypes B and C. F1 and F2 populations of seedling plants derived from crosses of Insave F.A. with Elbon and Balbo rye were tested for reaction to the greenbug to determine the genetic basis of inheritance. The results confirmed previous reports that resistance in Insave F.A. is conditioned by a single dominant gene.Deceased |
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| Keywords: | Aphids amphiploidy insect resistance Schizaphis graminum (Rondani) wheat-rye hybrid |
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