Biological control Effect of Trichodema on Fusarium oxysporum f.sp.benincasae
Abstract： 8 Trichodema were collated from the soil, carries on confronts the Fusarium oxysporum f.sp.benineasae, screens the fine Trichodema T04-004 that oppresses Fusarium oxysporum f.sp.benineasae, This strain to the Fusarium oxysporum f.sp.benineasae 's suppression rate achieved above 90%. The biological characterizations of Trichoderma viride T04-004 were screened and identified. The results illustrated that the spore germination of T04-004 strain needs certain nutrition, and the PD nutrient fluid is the best. The strain T04-004 grows well in the PDA culture medium, including the hypha and spore production. The temperature range of spore sprouts, hypha growth and spore production is 15℃~40℃, and the range of pH-value is 2~10. The illumination is not remarkable influence to hypha growth, but significantly affect on the spore production.
Key words: Trichodema; Fusarium oxysporum f.sp.benincasae; antagonism; biological characteristic
