A test of supposed mutants for stem rust resistance in wheat |
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| Authors: | D R Knott |
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| Institution: | (1) College of Agriculture, University of Saskatchewan, S7N 0W0 Saskatoon, Sask., Canada |
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| Abstract: | Summary Eight stem rust (Puccinia graminis tritici Eriks. and Henn.) resistant lines (designated TICENA lines) that had been selected by Veiga et al. (1981) following gamma radiation of BH-1146 wheat (Triticum aestivum L.) were studied. Six of the lines were resistant to race 15B-1 of stem rust and susceptible to race 56, and proved to carry the gene Sr7a. TICENA 4 carries two unidentified genes, each giving resistance to one of the two races. TICENA 10 carries Sr6, Sr7a and an unidentified gene giving resistance to race 56 but not 15B-1. The results raise doubts about the supposed origin of the lines as mutants. |
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| Keywords: | Triticum aestivum wheat Puccinia graminis tritici stem rust resistant mutants |
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