TY  - JOUR
TI  - Determination of the pathotypes of Rhynchosporium commune (Zaffarona,McDonald & Linde) in some regions of Turkey
AB  - Barley scald, caused by the fungal pathogen Rhynchosporium commune is the most important disease of barley in the world and in Turkey. Surveys were conducted during 2012, 2013, and 2014 in different regions of Turkey. Isolations were accomplished from diseased leaves and from these fifty-two R. communesingle spore isolates were selected. A total of 30 scald pathotypes were distinguished based on virulence on 17 barley differential set cultivars. Eighteen, 14, 6, and 1 of these pathotypes were from Central Anatolia, Southeast Anatolia, Aegean, and the Black Sea regions of Turkey, respectively. Twenty, 5, 1, 3, and 1 of these pathotypes were represented by 20, 2, 3, 4, and 7 isolates, respectively. None of the pathotypes was virulent on all 17 barley differential cultivars and two susceptible control cultivars. The most virulent pathotypes (pathotypes 29 and 30) were obtained from Manisa- Kula (13-203) and Gaziantep-Subağı (GPS71U) locations and the least virulent pathotype (pathotype 1) was obtained from SivasGemerek (GPS31) and Sivas-Ulaş (NKT20) locations of Turkey. Among 17 barley differential cultivars, Jet and Abyssinia were susceptible to 1 pathotype, Osiris, Atlas 46, and Forrajera were susceptible to 3 pathotypes, La Mesita and Bey were susceptible to 7 pathotypes, Trebi was susceptible to 9 pathotypes, Pirate was susceptible to 10 pathotypes, Modoc was susceptible to 11 pathotypes, Kitchin and Igri were susceptible to 12 pathotypes, Armelle and Astrix were susceptible to 19 pathotypes, Athene was susceptible to 21 pathotypes, Steudelli was susceptible to 24 pathotypes and Digger was susceptible to 25 pathotypes. Among barley differential cultivars, Jet and Abyssinia cultivars were found as the most resistant, and Digger and Steudelli cultivars were the most susceptible cultivars. Two susceptible control cultivars Bülbül 89 and Efes 3 were found susceptible to 93% of scald pathotypes. It appears that considerable variation exists among the Turkish R. commune isolates obtained from some barley growing areas of Turkey.
AU  - KARAKAYA, Aziz
AU  - AZAMPARSA, Mohammad Reza
DO  - 10.16955/bitkorb.460235
PY  - 2020
JO  - Bitki Koruma Bülteni
VL  - 60
IS  - 3
SN  - 0406-3597
SP  - 5
EP  - 14
DB  - TRDizin
UR  - http://search/yayin/detay/429525
ER  -