참깨 立枯性 病原菌에 관한 硏究 = Studies on the incidences of damping-off in sesame plant(Sesamum indicum)

다국어 초록 (Multilingual Abstract)

Damping-off and wilting diseases in sesame plant(Sesamum indicum L.) occurring severely in Korea have been studied for incidences of disease from seeds, diseased plants and soils.
Alternaria longissima, A. tenuis, Aspergillus. spp, Cephalosporium sp., Cuvuaria lunata, Drechslera sp.,sp., Fusarium equiseti, F. moniliforme, F. semitectum, F. solani, Mucor sp., Myrothecium roridum Penicillium spp., Phoma sp., Rhizopus sp., were saprophytic fungi and Alternaria sesami, A. sesamicola, Macrophomina phaseolina, Rhizoctonia solani were pathogenic fungi detected from 66 seed samples of sesame. Initial symptoms caused by pathogenic fungi on seedlings from naturally infected seed by the test tube agar method have been described and discussed. Except Alternaria sesamicola, A. tenuis and Macrophomina phaseolina, all fungi were completey wiped out the infection by pretreatment with Benlate-T.
The pathogenic fungi isolated from sesame soil were Fusarium oxysporum and Rhizoctonia solani. F.oxysporum occurred less frequently in upland rice and ground nut soils than in sesame soil, but R. solani not decreased by upland rice and ground nut soils. The differences of the isolation frequency of F.oxysporum and the incidence of the wilting plants were found among the fields which varied in their cropping histories.
F.oxysporum isolated most frequently from stems and roots of wilting sesame plants followed by R. solani. Nematodes also isolated from the wilting sesame plants.

목차 (Table of Contents)

• Ⅰ. 緖 言
• Ⅱ. 材料 및 方法
• Ⅲ. 結 果
• Ⅳ. 考 察
• Ⅴ. 摘 要