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Agriculture & Food, Volume 4, 2016

Galina Volkova, Olga Vaganova
Pages: 627-632
Published: 6 Jun 2016
Views: 2,016
Downloads: 341
Abstract: Leaf rust caused by fungi Puccinia triticina Rob. ex Desm. f. sp. tritici Erikss. et Henn., is a major disease affecting cultivars of soft winter wheat (Triticum aestivum L.), grown in the South of Russia. The objective of this study was to characterize seedling leaf rust resistance present in 12 cultivars of soft winter wheat. Leaf rust infection types (ITs) produced on cultivars by 16 isolates were compared with ITs produced on a standard set of Tatcher near-isogenic lines. Seedling resistance genes Lr: 1+, 2a, 3ka, 15, 16, 23, 33, 34 were postulated in 8 cultivars. The gene Lr23 occurred more often than the other ones. None of these genes, except for Lr23, in adult plants is effective for the population of leaf rust in the South of Russia. Adult plants leaf rust resistance for cultivars and lines was assessed in filed conditions on experimental fields of All-Russian Research Institute of Biological Plant Protection in 2014.
Keywords: soft winter wheat, resistance genes, leaf rust, postulation
Cite this article: Galina Volkova, Olga Vaganova. POSTULATION OF LEAF RUST RESISTANCE GENES IN CULTIVARS OF SOFT WINTER WHEAT. Journal of International Scientific Publications: Agriculture & Food 4, 627-632 (2016).
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