IMMUNE-PHYTOPATHOLOGICAL ASSESSMENT OF RESISTANCE OF WHEATS TO STEM RUST IN CONDITIONS OF THE SOUTHEAST OF KAZAKHSTANZ. Amangeldikyzy, A.S. Kochorov, Aziz Karakaya, A.I. Morgunov, R.D. Karbozova and M.A. GabdulovAbstract The paper presents the results of the immunological evaluation of the varieties of spring wheat of the 17 F1SYNT-OMSK-LIST farm: 90 samples and 7 susceptible local varieties jointly created by scientific institutions of Kazakhstan, Western Siberia and the CIMMYT International Wheat and Maize Improvement Center in conditions of the southeast of Kazakhstan. The study was conducted in 2016-2017 on natural and artificial infection background using field and laboratory methods. The varieties of spring and winter wheats sustainable and susceptible to stem rust for selection on immunity have been isolated 6 varieties are sustainable to stem rust, namely: LINE-Ñ-19SB, LUTESTSENS7-04-4, CARBERRY, URALOSYBIRSKAYA, ERITROSPERMUM 85-08 and LYUTESTSENS 6-04-4. From winter wheats have been isolated of resistance 19 lines and the genes Sr2, Sr22, Sr24, Sr26, Sr36. These valuable genotypes will be recommended for use in selection as a valuable source material in releasing stem rust resistant varieties in the future.
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