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  • Küçük Resim
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    Determination of the Seedling Reactions of Some Two-Rowed Barley Landraces Maintained at Osman Tosun Gene Bank to Pyrenophora Teres F. Teres
    (Selçuk Üniversitesi, 2022) Araya, Awet; Karakaya, Aziz; Oğuz, Arzu Çelik; Akdoğan, Güray
    Seedling stage reactions of thirty-eight 2-rowed barley landraces representing different areas of Turkey obtained from Osman Tosun Gene Bank to two Pyrenophora teres f. teres isolates were evaluated. In addition, barley cultivars Bülbül 89 and Avcı 2002 were included. Landraces exhibited different reactions to the disease and their reactions ranged from resistant- moderately resistant to susceptible. Landrace number 33 obtained from Diyarbakır was found the most resistant to the disease compared to all other landraces whereas landrace number 10 obtained from Bilecik-Söğüt, and cultivar Bülbül 89 were the most susceptible. The majority of the landraces were classified between the Moderately Resistant-Moderately Susceptible to Moderately Susceptible-Susceptible. Landrace number 33 exhibited Resistant-Moderately Resistant reactions to both isolates. This landrace from Diyarbakır could be used as the seed source and in the breeding studies for obtaining barley cultivars resistant to the net form of net blotch disease.
  • Küçük Resim
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    The Occurrence of Barley (Hordeum vulgare) and Wild Barley (H. spontaneum) Leaf Diseases in Batman Province and Surrounding Areas of Turkey
    (Selçuk Üniversitesi, 2021) Sivrikaya, Işıl Saraç; Karakaya, Aziz; Oğuz, Arzu Çelik
    Barley (Hordeum vulgare) is an important crop in Turkey. In this study, 37 barley fields in Batman central district and Beşiri (Batman), Gercüş (Batman), Hasankeyf (Batman), Kozluk (Batman), Sason (Batman), Kocaköy (Diyarbakır), Kurtalan (Siirt), and Midyat (Mardin) districts were examined for the presence of leaf diseases. In addition, 24 naturally grown wild barley (H. spontaneum) populations in Batman central district and Beşiri, Hasankeyf, Kurtalan, and Midyat districts were inspected for the presence of leaf diseases. In barley fields, scald caused by Rhynchosporium commune was the most common disease, followed by the spot form of net blotch caused by Drechslera teres f. maculata, barley stripe caused by Drechslera graminea, the net form of net blotch caused by Drechslera teres f. teres, spot blotch caused by Cochliobolus sativus, powdery mildew caused by Blumeria graminis f. sp. hordei and brown rust caused by Puccinia hordei. Among the Hordeum spontaneum populations the most common disease was scald, followed by the spot form of net blotch, the net form of net blotch, powdery mildew, and brown rust.