Розмір шрифту: 

Purpose. Stripe rust (caused by Puccinia striiformis f. sp. tritici (Pst)) and Brown rust (caused by Puccinia triticina (Pt) are most important foliar wheat disease in in Turkey. Stripe rust and brown rust can cause important yield and quality loss when susceptible cultivars are. The purpose of this research study 24 bread wheat genotypes (19 Yield Trials - Bread Wheat and 5 cultivars (‘Bayraktar 2000’, ‘Demir 2000’, ‘Tosunbey’, ‘Bezostaja 1’, ‘Kenanbey’) were evaluated for seedling stage reactions in January-February 2015. The experiment was carried out under greenhouse conditions in Central Research Institute for Field Crops in Yenimahalle/Ankara location. Methods. The test materials were grown 15-20^oC under greenhouse condition. The test materials were inoculated with urediniospores in mineral oil (Soltrol 170^®) suspension on Zadoks growth stage-11 or 12. The test materials were incubated at 9^oC (Pst) and 16^oC (Pt) with % 100 humidity during 24 hours after inoculation then materials moved to 15-20^oC greenhouse conditions. ITs, based on a 0 to 9 scale (Pst), 0 to 4 scale (Pt) were used for scoring after 14 days. Results. Stripe rust populations are virulent on Yr2, 6, 7, 8, 9, 25, 27, Sd, Su and Avs resistance genes and brown isolate is avirulent on Lr9, Lr19, Lr24 and Lr28 resistance genes. ITs on the susceptible checks (for stripe rust; Little Club and Morocco, for brown rust; Gün-91 and Thatcher) were high (IT = 8 (Pst) and 3+ (Pt)) scores. 3 (13%) were resistant to the local stripe rust populations. 3 (13%) were resistant to the brown rust. Conclusions. As a result of this research yield trials bread wheat resistant genotypes have been selected as resistant disease both for advance yield trial and select for stripe and brown rust disease breeding programme.

Bread wheat; stripe rust; brown rust; reaction test; seedling stage reaction