Fusarium oxysporum f. sp. raphani에 대한 무 유전자원의 저항성 평가

• 영문명: Evaluation of Resistance to Fusarium oxysporum f. sp. raphani in Radish Germplasm
• 발행기관: 한국육종학회
• 저자명: 전영아(Young-Ah Jeon) 성정숙(Jung-Sook Sung) 이주희(Juhee Rhee) 허온숙(On-Sook Hur) 노나영(Na-Young Ro) 백형진(Hyung-Jin Baek) 고호철(Ho-Cheol Ko)
• 간행물 정보: 『한국육종학회지』Vol.49 No.4, 344~350쪽, 전체 7쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2017.12.30

영문 초록

Identification of Fusarium oxysporum f. sp. raphani and investigation on fusarium wilt development by isolates and inoculation methods were conducted to establish a screening method for fusarium wilt-resistance in radish (Raphanus sativus L.) germplasm. Pathogenicity of F. oxysporum f. sp. raphani isolate, Heonggye-1 and Heonggye-2, to radish plants was confirmed by seedling test. Radish seedlings were inoculated by root-dipping and soil-drenching with or without root-wounding. For Heonggye-1 isolate, mean disease indexes were 4.13 and 3.91 by root-dipping and soil-drenching with root-wounding, respectively, but those were 1.87 and 1.88 without root-wounding. For Heonggye-2 isolate, mean disease indexes were 3.83 to 4.37 regardless of inoculation methods. Two-hundred sixty accessions of radish germplasm collected from 9 countries of Asia and Europe were evaluated for fusarium wilt-resistance by soil-drenching with root-wounding with Heonggye-2 isolate. Fifty-four resistant accessions with higher than 70% of the percentage of resistant seedlings in accession (P R ) and lower than 20% of the percentage of susceptible seedlings in accession (P S ) was found. Eighteen susceptible accessions with lower than 20% of P R and higher than 50% of P S were selected. These accessions could be used as breeding and research materials after re-evaluation of disease-resistance and characterization of agronomical traits.

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서 언

재료 및 방법

결과 및 고찰

키워드

Disease-resistance Fusarium oxysporum f. sp raphani Radish germplasm Screening method