Abstract
Verticillium wilt resistance of 77 olive cultivars including 71 domestic and six foreign ones, and four clonal rootstocks available in the olive gene bank, were tested using a highly virulent isolate (D pathotype) of Verticillium dahliae. The pathogen was stem-inoculated into the own-rooted saplings. Most cultivars and rootstocks were found to be extremely susceptible to the disease. ‘Sinop No. 1’, ‘Eğriburun Nizip’, ‘Erkence’, ‘Eğriburun Tatayn’, ‘Girit Zeytini’ and ‘Marantelli’ were highly resistant, as their disease severities did not exceed 10%. Additionally, 11 domestic cultivars (‘Sarı Habeşi’, ‘Yağlık Çelebi’, ‘Zoncuk’, ‘Dilmit’, ‘Şam’, ‘Hurma Karaca’, ‘Erdek Yağlık’, ‘Melkabazı’, ‘Yün Çelebi’, ‘Kan Çelebi’ and ‘Siyah Salamuralık’), two foreign cultivars (‘Arbequina’ and ‘Frantoio’) and one wild clonal rootstock (‘D36’) were found to be resistant, with disease severities less than 30%. On the other hand, the moderately susceptible group comprised ten domestic cultivars (‘Ak Zeytin’, ‘Yağ Çelebi’, ‘Saurani’, ‘Butko’, ‘Gemlik’, ‘Otur’, ‘Yağ Zeytini’, ‘Belluti’, ‘Sinop No. 2’ and ‘Samanlı’), three foreign cultivars (‘Leccino’, ‘Chemlali’ and ‘Ascolana’) and one wild clonal rootstock (‘D9’). The number of cultivars within highly resistant and resistant groups was 17 out of the 71 domestic cultivars from all regions (four from Aegean, seven from southeastern Anatolia, two from Black Sea and three from Marmara).
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Acknowledgments
This study was partially supported by The Scientific and Technical Research Council of Turkey (TUBITAK Project TOVAG 105-O-101) and The Ege Science and Technology Center (EBİLTEM Project 2006-BİL-07). The authors would like to thank Drs. Sibel Dervis, Sedat Serçe and Haluk Arsel for their help in the preparation of the manuscript and two anonymous reviewers for their valuable comments which significantly increased the quality of the presentation.
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Erten, L., Yıldız, M. Screening for resistance of Turkish olive cultivars and clonal rootstocks to Verticillium wilt. Phytoparasitica 39, 83–92 (2011). https://doi.org/10.1007/s12600-010-0136-2
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DOI: https://doi.org/10.1007/s12600-010-0136-2