Ankara koşullarında bazı korunga türlerinde görülen külleme hastalığı etmenlerinin belirlenmesi

Abstract

Bu calisma ile Ankara kosullarinda yetistirilmekte olan bazi korunga turlerinde gorulen kulleme hastaligi etmenleri belirlenmistir. 2009-2010 yillarinda Turkiye’nin degisik bolgelerinden elde edilen 43 korunga turu incelenmistir. Bu turler icinde degisik bolgelerden alinan ayni turler de bulunmaktadir. Turkiye’den elde edilen toplam 88 tur incelenmistir. Ayrica Amerika Birlesik Devletleri Tarim Bakanligindan elde edilen 20 korunga turu de kulleme hastaligi yonunden incelenmistir. Bu kisimda farkli bolgelerden gelen 31 tur incelenmistir. Kulleme hastaligina neden olan fungus etmenleri tespit edilmistir. Korunga turleri uzerinde hastalik olusturan kulleme funguslari Erysiphe trifolii ve Leveillula taurica olarak bulunmustur. Bu funguslardan Leveillula taurica daha yaygin olarak gorulmustur. Kulleme hastaligina yakalanan korunga turleri ortaya konmus ve bu korunga turleri arasinda Turkiye ve dunya icin yeni konukcular bulunmustur. Ayrica kulleme hastaligina yakalanmayan turler de not edilmistir.Abstract In this study, the causal agents of powdery mildew disease occurring on some sainfoin species were determined under Ankara conditions. Forty three sainfoin species obtained from different regions of Turkey were examined during the years 2009 and 2010. Among these species, same species obtained from different areas were also examined. A total of 88 sainfoin species were examined from Turkey. In addition, 20 sainfoin species obtained from United States Department of Agriculture were also examined during these years. Among these species, same species obtained from different areas were also examined. A total of 31 sainfoin species were examined from Turkey and different countries. The causal agents of the powdery mildew disease were determined. Powdery mildew disease agents causing diseases on sainfoin species were found as Erysiphe trifolii and Leveillula taurica. The incidence of Leveillula taurica was the highest. Sainfoin species affected by the powdery mildew disease were recorded. Some of the sainfoin species are new hosts for these fungi for Turkey and the world. Some of the sainfoin species that powdery mildew disease was not observed also recorded.