1. RESISTANCE TO BROWN LEAF RUST OF HYBRIDS BETWEEN WHEAT AND AMPHIPLOIDS WHEAT-THINOPYRUM.
- Author
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SECHNYAK, Alexander Lvovivh, VASILIEV, Alexei Anatolievich, and TKACHENKO, Irina Sergeevna
- Subjects
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WHEAT disease & pest resistance , *LEAF diseases & pests , *PATHOGENIC microorganisms , *PUCCINIA recondita , *GENETIC markers - Abstract
The resistance to a brown leaf rust in 56 chromosomal partial ?mphiploids (Triticum aestivum L. × Thinopyrum ponticum (Podp.) Z.-W. Liu and R.-C. Wang), ?? 2 (Triticum aestivum L. × Thinopyrum intermedium (Host) Barkworth and D.R. Devey), H79/9-9 (Triticum aestivum L. × Elymus sp.), Triticum aestivum L. cvs. Albatross odesskiy, Fantaziya odesskaya, Zhatva Altaya and their hybrids, F2-F4 were studied at artificial infection in field infectious nursery in 2009, 2010 and 2011. The investigated varieties of wheat have shown a high susceptibility to pathogen. Amphiploids ?? 1 and ?? 2 also are susceptible to pathogen, but in a lesser degree, than the wheat. Good resistance was shown only by amphiploid ?79/9-9, but its hybrid with wheat Albatross Odessa appeared is susceptible to pathogen. The hybrids with amphiploids ?? 1 and ?? 2 have shown a various degree of resistance to brown leaf rust. Hybrid Zhatva Altaya × ?? 2 within three years stably showed 8 point resistance to disease. The reasons for different resistance of amphiploids and its hybrids with wheat are discussed. [ABSTRACT FROM AUTHOR]
- Published
- 2011