Gray Mold of Safflower Caused by Botrytis cinerea

The gray mold disease was severely occurred on safflower grown in experimental farm of Kyongsangnam-do Agricultural research and Extension services in 1999. At first, the infected leaves discolored gray or dark from the tip and gradually expanded to downword. The fungus also attacked stem, pod and c...

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Bibliographic Details
Published inHangug gynnhaghoi ji Vol. 28; no. 1
Main Authors Kwon Jin-Hyeuk, Kang Soo-Woong Kyongsangnam-do Agricultural Research and Extension Services, Chinju (Korea Republic)
Format Journal Article
LanguageKorean
Published 01.04.2000
Subjects
AGENT PATHOGENE
CARTHAMUS
COLORANT
COLORANTES
DYES
ENFERMEDADES FUNGOSAS
ESPORAS FUNGICAS
FUNGAL DISEASES
FUNGAL SPORES
MALADIE FONGIQUE
ORGANISMOS PATOGENOS
PATHOGENESE
PATHOGENESIS
PATHOGENS
PATOGENESIS
SPORE FONGIQUE
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Summary:The gray mold disease was severely occurred on safflower grown in experimental farm of Kyongsangnam-do Agricultural research and Extension services in 1999. At first, the infected leaves discolored gray or dark from the tip and gradually expanded to downword. The fungus also attacked stem, pod and calyx. The infected area became dark and dried, and frequently gray mold grown on the infected area. The causal organism was isolated and proved its pathogenecity according to Koch's postulate. Conidia of the fungus in mass were hyaline or gray, 1-celled, mostly ellipsoid or ovoid and sized 7.4~16.8*5.3~10.4 micro m. Conidiophores were observed with their wide size of 2.9~15.5 micro m. The temperature range for mycelial growth was between 5 degrees and 30 degrees with the optimum temperatures of 20 degrees and 25 degrees. The causal organism was identified as Botrytis cinerea and based on mycological characteristics examined. This is the first report on gray mold of safflower caused by Botrytis cinerea in Korea.
Bibliography:H20
2001000822
ISSN:0253-651X
2383-5249