흑색필름 골피복 및 아인산 관주가 노지수박 역병 발생 경감에 미치는 영향 = Effect of Furrow Mulching with P.E. Black Film and Dripping of Phosphorus Acid on Control of Phytophthora Root and Fruit Rot (Phytophthora capsici) Occurred in Field-grown Watermelon

국문 초록 (Abstract)

본 시험은 노지수박 재배시 발생하는 역병의 방제가능성을 조사하기 위하여 수행하였다. 시험포장에서 역병은 6월 29일 발병이 시작되었으며, 약제의 경엽살포와 아인산의 지제부 및 착과부 관주에 대한 효과보다는 골피복의 효과가 크게 나타났다. 초기발병률은 처리간 어떤 경향을 보기 어려웠으나 병의 진전도를 볼 때 골피복을 처리한 구들에서 병의 진전이 늦었으며, 수확기에 기타 처리에서 병의 발생이 급격히 진전되었고 무처리구에 7월 20일 조사시 100% 발병되었다. 역병균 밀도와 이병주율과의 회귀식은 [이병주율(%)=40.17+5.07×역병균밀도(r²=0.552<SUP>**</SUP>)]이며, 역병균 밀도와 이병과율과의 회귀식은 [이병과율(%)=31.24+5.15×역병균밀도(r²=0.566<SUP>**</SUP>)]이며, 이병주율과 이병과율과의 회귀식은 [이병과율(%)=-3.30+0.90×이병주율(r²=0.943<SUP>**</SUP>)]이었는데 이는 덩굴에 역병이 발생하면 과실까지 역병균이 이동하여 과실까지도 침해한다는 결과를 보여주는 것이라 생각된다.

다국어 초록 (Multilingual Abstract)

The experiment was carried out to investigate the possibility in control of Phytophthora root and fruit rot (Phytophthora capsici) in field-grown watermelon during summer season. The disease started to occur in 29 June in the experiment field. To investigate which method was more effective against the disease, four methods, such as fungicide application, furrow mulching with P.E. black film, and dripping of phosphorus acid at root area and fruit setting area, were combined. They did not show any difference in the early stage. When harvest season was coming, the incidence was developed rapidly and reached to 100% and other treatments couldn’t reduce the disease incidence very much, but furrow mulching with black film influenced the reduction of the disease significantly. Regression equations between the pathogen density and the diseased vine rate, the pathogen density and the diseased fruit rate, and the diseased plant rate and the diseased fruit rate were [diseased vine rate (%) = 40.17 + 5.07 × pathogen density (r²=0.552<SUP>**</SUP>)], [diseased fruit rate (%) = 31.24 + 5.15 × pathogen density (r²=0.566<SUP>**</SUP>)], and [diseased fruit (%) = -3.30 + 0.90 × diseased vine rate (r²=0.943<SUP>**</SUP>)], respectively. This result indicated that fruit infection would be influenced much more by infected vine rather than by pathogen density in soil.

목차 (Table of Contents)

• Abstract
• 서언
• 재료 및 방법
• 결과 및 고찰
• 초록
• 인용문헌

참고문헌 (Reference)

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