Author/Authors :
EVRENOSOĞLU, Yasemin Eskişehir Osmangazi Üniversitesi - Ziraat Fakültesi - Bahçe Bitkileri Bölümü, Turkey , MISIRLI, Adalet Ege Üniversitesi - Ziraat Fakültesi - Bahçe Bitkileri Bölümü, Turkey , AYSAN, Yeşim Çukurova Üniversitesi - Ziraat Fakültesi - Bitki Koruma Bölümü, Turkey , SAYGILI, Hikmet Ege Üniversitesi - Ziraat Fakültesi - Bitki Koruma Bölümü, Turkey , BOZTEPE, Özlem Fındık Araştırma İstasyonu, Turkey , HORUZ, Sümer Çukurova Üniversitesi - Ziraat Fakültesi - Bitki Koruma Bölümü, Turkey , ACARSOY, Nihal Ege Üniversitesi - Ziraat Fakültesi - Bahçe Bitkileri Bölümü, Turkey , BİLEN, Emre Atatürk Bahçe Kültürleri Merkez Araştırma İstasyonu - Meyvecilik Bölümü, Turkey , BAYKUL, Ali Eskişehir Osmangazi Üniversitesi - Ziraat Fakültesi - Bahçe Bitkileri Bölümü, Turkey , YAZICI, İrem Bilecik Şeyh Edebali Üniversitesi - Pazaryeri MYO Organik Tarım Programı, Turkey
Abstract :
In this study, susceptibility levels of different hybrid pear individuals were determined against fire blight disease agent Erwinia amylovora by artificial inoculations. According to the pathogenity tests of 75 different E. amylovora strains, made on apple and pear shoots, highly virulent 7 strains were used in the testing of the hybrids. E. amylovora suspension was prepared with equal mixes of these 7 selected strains. This suspension was inoculated to hybrid plants by shoot injections that carried out twice, in August 2010 and May 2011. According to the evaluations made through necrotic shoot rate, totaly 7495 hybrid seedlings inoculated, and 11,91% of them were “the least susceptible” 3,99% were “less susceptible”, 6,62% were “moderately susceptible”, 18,07% were “highly susceptible”, 59,41% were “the most susceptible”. More “the least susceptible” pear hybrids were obtained from the combinations of resistant Magness cultivar than the other combinations.
NaturalLanguageKeyword :
Pear , Erwinia amylovora , Hybrid , Artificial Inoculation , Disease Reaction
