Research in Plant Disease (식물병연구)

The Korean Society of Plant Pathology (한국식물병리학회)
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Control of Soilborne Fungal Diseases on Muskmelon by Soil Disinfestation in Consecutively Cultivated Fields

토양살균에 의한 멜론 연작재배지 뿌리썩음병 방제

  • Lee, Jung-Sup (Pear Experimental Station, National Institute Horticultural and Herbal Science, RDA) ;
  • Choi, Jang-Jeon (Pear Experimental Station, National Institute Horticultural and Herbal Science, RDA) ;
  • Choi, Jin-Ho (Pear Experimental Station, National Institute Horticultural and Herbal Science, RDA) ;
  • Huh, Yun-Chan (Vegetable Research Div., National Institute Horticultural and Herbal Science, RDA)
  • 이중섭 (국립원예특작과학원 배시험장) ;
  • 최장전 (국립원예특작과학원 배시험장) ;
  • 최진호 (국립원예특작과학원 배시험장) ;
  • 허윤찬 (국립원예특작과학원 채소과)
  • Published : 2009.04.01
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Abstract

This study was carried out to determine the causal agents of soil-borne fungal diseases that pose a threat to the muskmelon production in Cheong Yang, Korea and to investigate the potential effects of hot water drenching and three fumigant (metam sodium, dazomet and methyl bromide) on these diseases. As the agents of the diseases, Monosporascus cannonballus, Didymella sp., Fusarium sp., Phytophthora sp., were detected. Hot water and the fumigants were treated on two successive cropping seasons of melon. Soil temperature was measured at 0, 10, 20 and 30 cm soil depth. In 2005, soil sterilization by hot-water was more effective significantly to control of the diseases than by fumigant. yield was the highest in hot-water sterilized plot as $39\;ton{\cdot}ha^{-1}$. Dazomet ($50\;g/m^2$) treated plot was followed as $23\;ton{\cdot}ha^{-1}$. In 2006, hot water sterilized plot showed higher yields than non-treated plots ($14.8\;ton{\cdot}ha^{-1}$). But the other three fumigant contained Dazomet ($50\;g/m^2$) were no difference (P<0.05) in yield.

청양지역을 비롯한 멜론 연작재배지에서 매년 피해를 나타내고 있는 시들음 증상 발생주의 뿌리로부터 뿌리씩 음병 원균 Monosporascus cannonballus(28.4%), Fusarium spp.(27.4%), Didymella bryoniae(24.2%), Phytophthora spp.(20.0%) 등을 각각 분리하였다. 멜론 연작재배 토양내 뿌리썩음병 방제를 위해 고온수 관주 및 훈증제 3종 살균처리하고 방제효율을 검정하였다. 고온수($92{\sim}98^{\circ}C$) 토양관주 살균처리는 $'05{\sim}'06$년 정식전 4시간(관주량: $52{\sim}55$ tons/10a) 관주하였다. 그 결과 발병율이 0.01$\sim$0.08%로 무처리의 발병량(6.6$\sim$81.4%)보다 높은 방제효과를 나타내었다(p<0.05). 이는 토양훈증 살균제 3종의 방제효과(54.8$\sim$79.7%) 보다 20.2$\sim$45.1% 높았다. 또한, 고온수 관주처리 토양에서의 역병(Fire blight), 시들음병 (Fusarium wilt)의 발병율도 극히 낮았다 한편, 2005-2006년 고온수 관주처리구의 수량은 39톤/ha으로 무처리구(13.6톤/ha)에 비해 매우 높아 고도의 유의성을 나타내었다(P<0.05). 그러나, Dazomet, methyl bromide등 훈증제 처리는 약제 처리간 유의성은 없었으나 수량은 무처리 보다 39$\sim$47% 높았다. 결과적으로 고온수($92{\sim}98^{\circ}C$)를 이용한 연작재배지 토양 살균은 토양병해에 높은 방제효과를 나타내어 약제에 의한 훈증살균보다 효과적이라 판단되었다.

Keywords

References

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  2. Greenhouse Evaluation of Melon Rootstock Resistance to Monosporascus Root Rot and Vine Decline as Well as of Yield and Fruit Quality in Grafted 'Inodorus' Melons vol.32, pp.5, 2014, https://doi.org/10.7235/hort.2014.14065