Gülsüm PALACIOĞLU, HARUN BAYRAKTAR, Göksel ÖZER

Rhizoctonia Ağ Yanıklığı Hastalığına Karşı Bazı Fasulye Çeşitlerinin Reaksiyonları

Rhizoctonia solani fasulye üretim alanlarında yaygın olarak görülen ve ağ yanıklığı, kök ve hipokotil çürüklüğüne sebep olarak önemli ekonomik kayıplar oluşturan bir hastalık etmenidir. Bu çalışma kapsamında Rhizoctonia ağ yanıklığı hastalığına karşı ülkemizde yaygın olarak yetiştirilen 30 fasulye çeşidinin hastalık reaksiyonları yaprak inokulasyon yöntemi ile değerlendirilmiştir. Patojen izolatı PCR-RFLP yöntemi ile R. solani AG-4 HG II olarak sınıflandırılmıştır. Çalışma kapsamında değerlendirilen fasulye çeşitlerinin hiçbiri hastalığa tam dayanıklı değil iken 13 çeşit orta dayanıklı, 17 çeşit ise hassas olarak değerlendirilmiştir. Test edilen çeşitler arasında en dayanıklı çeşit 40 günlük fasulye çeşidi olup bunu Java ve Klas fasulye çeşitleri takip etmiştir.

Anahtar Kelimeler:

Ağ yanıklığı, fasulye, hastalık reaksiyonu, Rhizoctonia solani.

Reactions of Some Common Bean Cultivars to Rhizoctonia Web Blight

Rhizoctonia solani causing web blight, root and hypocotyl rot of bean is a prevalent and economically important pathogen in bean production areas. The aim of study was to evaluate the disease reactions of 30 common bean cultivars that commonly grown in Turkey against Rhizoctonia web blight using leaf inoculation method. Pathogen isolate was classified as R. solani AG-4 HG II by PCR-RFLP method. None of the common bean cultivars evaluated in this study was completely resistant to the disease, while 13 cultivars were considered as moderately resistant and 17 cultivars as susceptible. Among the tested cultivars, the most resistant cultivar was the bean cultivar 40 günlük, followed by the common bean cultivars Java and Klas.

Keywords:

Web blight, bean, Disease reaction, Rhizoctonia solani.,

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