Isogenic lines: Reaction to the kazakhstan population of stem rust (puccinia graminis f. sp. tritici)
Ydyrys A. Sarbaev A. Morgounov A. Dubekova S. Chudinov V.
2021Agriculture Faculty Brawijaya University
Agrivita
2021#43Issue 1221 - 232 pp.
In recent years, intensified development of stem rust of wheat has again been noted in the grain-growing regions of Kazakhstan. To determine the genetic basis of immunity in 2015 – 2019, the authors performed targeted studies in the conditions of the southeast and north of Kazakhstan on the natural and the artificially infectious backgrounds of inoculation. Their scientific novelty consisted in identifying effective Sr genes of wheat resistance to the Kazakhstan population of stem rust. The obtained results of the immunological assessment of the trap varieties show that most studied genotypes with the Sr genes were susceptible to the Kazakhstan population of stem rust. With that, the varieties carrying the Sr31 gene have been affected to varying degrees. It should be especially noted that the Sr31 gene in combination with the Sr24 gene ensured more reliable protection from the population of the stem rust pathogen. The authors have selected the obtained resistance genes by their efficiency: Sr2 complex; Sr11; Sr21; Sr31; Sr36; Sr39; Sr40, SrSatu; SrNin, as well as combinations of the Sr24 and 1RS-Am genes; Sr24.31; Sr6.31.21; Sr6,24,36,1RSAm; Sr7a, Sr12, Sr6; and Sr31 absent. The authors recommend them as sources of resistance to the local stem rust population.
Resistance Sr genes stem rust Wheat
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Kazakh National Agrarian University, Almaty, Kazakhstan
Omsk State Agrarian University, Omsk, Russian Federation
Washington State University, Pullman, United States
Kazakh Research Institute of Agriculture and Plant growing, Almaty, Kazakhstan
Karabalyk Experimental Agricultural Research Station, Kostanay region, Kazakhstan
Kazakh National Agrarian University
Omsk State Agrarian University
Washington State University
Kazakh Research Institute of Agriculture and Plant growing
Karabalyk Experimental Agricultural Research Station
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