Title: Study on the effects of garlic bulb crude extracts on inhibition of Fusarium axysporum(Schl.) f.sp.Cucumerinum Owen.and disease control
Abstract: 【Objective】 The experiment was conducted to investigate the effects of garlic inhibition to pathogen and control to fusarium wilt(Fusarium axysporum(Schl.) f.sp.Cucumerinum Owen) in order to accumulate the basic data for the disease control by direct use of garlic in the production of safe,green and organic vegetables.【Method】 Garlic bulb was ground with water in mortar and pestle to prepare the crude extracts.The inhibitive effects of garlic bulb crude extracts on pathogen were tested in lab dish and the disease control effects were tested on potted cucumber seedling with pathogen inoculated.【Result】 Garlic bulb crude extracts had significant inhibitive effects on pathogen mycelia growth and spore germination.The mean diameter of pathogen inhibited circle and inhibitive effects on pathogen mycelia growth and spore germination increased with the rise of garlic extracts concentration.The lowest inhibitory concentration was 0.625 mg/mL to pathogen mycelia growth and 0.312 5 mg/mL to spore germination.The inhibitive rate to spore germination reached 100% when the concentration of garlic bulb extracts increased to 10 mg/mL and the inhibitive rate to mycelia growth reached 90% when the concentration of garlic bulb extracts increased to 20 mg/mL.In the experiment of fusarium wilt control on cucumber seedlings with pathogen inoculation,the results showed that the disease could be effectively controlled by garlic bulb crude extracts,and the controlling effects increased with the rise of garlic extracts concentration.The effect on disease control reached 65.5%-81.8% when garlic extracts concentration increased to 100 mg/mL.【Conclusion】 Garlic bulb crude extracts had significant inhibitive effects on pathogen Fusarium axysporum(Schl.) f.sp.Cucumerinum Owen and significant prevention effects on the disease of fusarium wilt.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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