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KMID : 0352719890130010114
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Journal of Ginseng Research
1989 Volume.13 No. 1 p.114 ~ p.118
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Effect of Tolclofos-methyl on damping-off of ginseng seedlings incited by Rhisoctonia solani
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유연현
조대과/오승환
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Abstract
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Tolclofos-methyl applied as seed dipping at 1,000 ppm for 3 hrs before sowing and soil drenching at the rate of 300 g ai./10 a in the middle of April protected emerging seedlings of Panax ginseng from damping-off caused by Rhiiutonia solani(AG2-1) in Yangjik Soil artificially infested with the pathogen. Germination rates with tolclofos-methyl, pencycuron, and control were 53.7%, 45.8%, and 7.5%, respectively, while the rate of the seeds at non-infested soil was 62.6%. The effectiveness of Tolclofos-methyl against the pathogen in the soil lasted upto 32 days in vitro. However, the transpiratio of ginseng seedlings increased greatly with chemical treatment, showing 0.02, 0.12, and 0.24 m1/cm2 leaf area/day at 0, 1,2, and 4 ppm a.i. of the fungicide, respectively.
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KEYWORD
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Rhizoctonia solani, ginseng, tolclofos-methyl
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FullTexts / Linksout information
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