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http://dx.doi.org/10.5423/RPD.2012.18.2.093

Evaluation of Resistance to Colletotrichum acutatum in Pepper Genetic Resources  

Kim, Sang-Gyu (National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration)
Ro, Na-Young (National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration)
Hur, On-Sook (National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration)
Ko, Ho-Cheol (National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration)
Gwag, Jae-Gyun (National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration)
Huh, Yun-Chan (Vegetable Research Division, National Institute of Horticultural & Herbal Science, Rural Development Administration)
Publication Information
Research in Plant Disease / v.18, no.2, 2012 , pp. 93-100 More about this Journal
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 $28^{\circ}C$ 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.
Keywords
Anthracnose; Capsicum; Resistance; Resistant resources;
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