초록

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Abstract ▼ AI-Helper

Studies on the varietal resistance and effects of nutrients for fungal growth were carried out in order to obtain basic materials for breeding resistant variety and control measures of the red pepper anthracnose disease caused by Colletotrichum dematium f. sp. capsicum. Four cultivars such as Kumcha...

Studies on the varietal resistance and effects of nutrients for fungal growth were carried out in order to obtain basic materials for breeding resistant variety and control measures of the red pepper anthracnose disease caused by Colletotrichum dematium f. sp. capsicum. Four cultivars such as Kumchang No. 2, Bulamhouse, Pakistan, Hongilpum were resistant among twenty-one pepper cultivars, and five cultivars including Taiwan pepper were moderate. The remaining twelve cultivars including H-038 and Saegochu were susceptible. These susceptible cultivars were mostly belonged to sweet taste cultivars. Glucose was known the best source for fungal growth, and near 3 percent of carbon concentration was the best for mycelial growth of the fungus. Conidial sporulation was rather decreased by adding high concentrations of C-source, whereas fungal dry weight was a positive tendency in proportion to increasing carbon concentrations. N-sources and vitamins were not remarkable as that for carbon, and rather a decreasing trend for mycelial growth by adding N-source. Especially, the lowest of mycelial growth was in the case of Czapek-Dox plus ammonium sulfate. The medium plus vitamins either niacin or thiamine was slightly increased to mycelial growth.

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