Research in Plant Disease 2012;18(2):93-100.
Published online June 30, 2012.
보문 : 고추 유전자원의 탄저병(Colletotrichum acutatum) 저항성 평가
김상규 ( Sang Gyu Kim ) , 노나영 ( Na Young Ro ) , 허온숙 ( On Sook Hur ) , 고호철 ( Ho Cheol Ko ) , 곽재균 ( Jae Gyun Gwag ) , 허윤찬 ( Yun Chan Huh )
 
Evaluation of Resistance to Colletotrichum acutatum in Pepper Genetic Resources
Sang Gyu Kim, Na-Young Ro*, On-Sook Hur, Ho-Cheol Ko, Jae-Gyun Gwag and Yun-Chan Huh1
National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration, Suwon 441-853, Korea
1Vegetable Research Division, National Institute of Horticultural & Herbal Science, Rural Development Administration, Suwon 440-706, Korea
Received: April 06, 2012   Revised: June 14, 2012   Accepted: June 15, 2014
Abstract
Resistance of pepper (Capsicum spp.) to anthracnose (Colletotrichum acutatum) was evaluated during regeneration of Capsicum spp. in National Agrobiodiversity Center. Disease severity of 896 pepper accessions (430 accessions of C. annuum, 219 accessions of C. baccatum, 14 accessions of C. chacoense, 153 accessions of C. chinense, 70 accessions of C. frutescens, 2 accessions of C. pubescens, and unidentified 8 accessions) was investigated at 14 days after inoculation in 28oC humid chamber. Forty nine accessions of pepper germplasm were resistant to C. acutatum. Among them, nine accessions were highly resistant to C. acutatum without wounding spray inoculation. Four accessions belonged to the species C. baccatum, one accession to C. chacoense, and four accessions to C. frutescens. Forty two resistant candidate accessions were inoculated with pin-prick wounding using a syringe needle. Five accessions were resistant as a less than 3% of disease severity to C. acutatum with wounding inoculation 5 days after inoculation. All resistant accessions were C. baccatum. These five pepper germplasm might be used as breeding resources for the anthracnose resistance breeding program.
Key Words: Anthracnose, Capsicum, Resistance, Resistant resources


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