Research in Plant Disease 2012;18(1):57-61.
Published online March 30, 2012.
Fusarium solani f. sp cucurbitae에 의한 오이 근경썩음병
한경숙 ( Kyung Sook Han ) , 이성찬 ( Seong Chan Lee ) , 한유경 ( You Kyoung Han ) , 김동휘 ( Dong Hwi Kim ) , 김수 ( Sui Kim )
 
Crown and Foot Rot of Grafted Cucumber Caused by Fusarium solani f. sp. cucurbitae
Kyung-Sook Han*, Seong-Chan Lee, You-Kyoung Han, Dong-Hwi Kim1 and Sui Kim2
Horticultural & Herbal Environment Division, National Institute of Horticultural and Herbal Science, RDA, Suwon 441-440, Korea
1Ginseng Research Division, National institute of Horticultural and Herbal Science, RDA, Eumseong 369-873, Korea
2Vegetable Research Division, National institute of Horticultural and Herbal Science, RDA, Suwon 440-706, Korea
Received: December 07, 2011   Revised: February 05, 2012   Accepted: March 08, 2012
Abstract
In March 2010, grafted cucumber cultivated in the greenhouse showed a severe rot on crown resulting yellowing and wilting of the leaves. The symptoms of naturally infected plants showed dark brown, watersoaked lesions at the base of the stem. The fungus produced mass of white mycelium and yellow to orange spores in necrotic lesions on dead and dying plants. Fungus was isolated from rotted tissues of the crown and root. On the basis of morphological characteristics, ITS sequence and pathogenicity tests, the isolate was identified as Fusarium solani f. sp. cucurbitae. This is the first report of the crown and foot rot of grafted cucumber caused by F. solani f. sp. cucurbitae in Korea.
Key Words: Crown and Foot Rot, Cucumber, Fusarium solani f. sp. cucurbitae, ITS sequence


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