Fungal Distribution and Varieties Resistance to Kernel Discoloration in Korean Two-rowed Barley

Autor: Jong Chul Park, Eun-Jo Seo, Jae-Seong Choi, Chun-Sik Kang, Sanghyun Shin, Jungkwan Lee
Rok vydání: 2013
Předmět:
Zdroj: Research in Plant Disease, Vol 19, Iss 3, Pp 183-187 (2013)
ISSN: 1598-2262
DOI: 10.5423/rpd.2013.19.3.183
Popis: Department of Applied Biology, Dong-A University, Busan 604-714, Korea(Received on April 15, 2013; Revised on August 12, 2013; Accepted on August 13, 2013)Barley kernel discoloration (KD) leads to substantial loss in value through downgrading and discounting ofmalting barley. The objective of this research is to investigate fungal distribution and varieties resistance toKD in Korean two-rowed barley. Several fungal organisms including Alternaria spp., Fusarium spp.,Aspergillus spp., Epicoccum spp. and Rhizopus spp. were isolated from Korean two-rowed barley representingKD. The symptoms of KD were brown and black discolorations of the lemma and palea. The most frequentlydetected fungal species was Alternaria spp. which exhibited 69.1% and 72.2% in 2011 and 2012, respectively.Epicoccum spp., Fusarium spp., and Aspergillus spp. were also detected. Fusarium spp., primary pathogen ofbarley head blight, were rarely occurred in the 2011 and their occurrence increased to 4.7% in 2012. Twentycultivars of Korean two-rowed barely were evaluated to KD. The average percentage of KD was 8.0 −36.0% in2011 and 5.2−36.6% in 2012. Two cultivars (‘Sacheon 6’ and ‘Dajinbori’) showed KD of 6.2% to 8.8% anddetermined resistant, however ‘Samdobori’ and ‘Daeyeongbori’ demonstrating KD of 22.2−36.6% werehighly susceptible. ‘Jinyangbori’, ‘Danwonbori’, ‘Sinhobori’ and ‘Kwangmaegbori’ showing KD of less than15% were moderately resistant cultivar. Keywords : Barley, Fungi, Kernel discoloration, Resistance
Databáze: OpenAIRE