Abstract
The wheat cultivars Westphal 12A and BH1146 were characterized in previous studies as having partial resistance to the leaf rust pathogen Puccinia triticina. In the present study, genetic analysis showed that Westphal 12A has three genes that condition resistance in seedling plants, and the gene Lr34, which is optimally expressed in adult plants. The three seedling resistance genes in Westphal 12A may be new leaf‐rust resistance genes. BH1146 was shown to have the adult plant resistance genes Lr13 and Lr34. Many wheat cultivars with partial resistance to leaf rust may have Lr13 and/or Lr34, or other previously described Lr genes.
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