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Effect of Oriental Melon Vinegar Treatment on Growth and Disease Control of Oriental Melon

참외식초 처리가 참외 생육 및 병충해 방제에 미치는 영향

  • Published : 2004.02.01

Abstract

Oriental melon vinegar was prepared by two stage fermentations of alcohol and acetic acid. In the alcohol fermentation using oriental melon residual products, alcohol content showed 7.43% in 17$^{\circ}$ brix of initial sugar concentration and 80 h of fermentation time. In the acetic acid fermentation using oriental melon alcohol, acidity showed 5.25% in 250rpm of agitation rate and 200 h of fermentation time. The cultivation esults of oriental melons using its vinegar are as follows. Quantity and quality of samples treated with 500, 1,000 and 2,000 times of oriental melon vinegar were higher than that of control : weight, quality, sugar content and goods production rate were higher to degree of 33∼42 g/piece, 370 ∼460kg/10a, 0.6∼.9$^{\circ}$ Brix, 2∼5%, respectively. Coods production yield of samples treated with 500, 1,000 and 2,000 times of oriental melon vinegar was higher (400∼610 kg/10a) than that of control. The results of control of powdery mildew on oriental melons using oriental melon vinegar as the diluted solution with 500 and 1000 times were identical for control value that used by agrochemical. Powdery mildew were exterminated by 2nd treatment of the diluted solution. In case of aphids, the diluted solution with 500, 1,000 and 2,000 times of oriental melon vinegar exterminated thoroughly by 2nd treatment.

참외식초는 2단계로 알코을 발효 및 초산 발효 과정에 의해 제조하였으며, 알코올 발효에서 초기 당함량 17$^{\circ}$brix에서 80시간 발효하여 7.43%의 알코올을 생산하였고, 초산발효에서 교반속도 250 rpm에서 200시간 발효하여 총산도가 5.25%인 천연양조 식초를 생산하였다. 참외식초를 이용하여 참외생산성과 수량성에 미치는 영향을 조사하기 위해 참외식초를 농도별로 처리하여 수확한 참외는 참외식초 500배액, 1,000배액, 2,000배액 관주구가 참외식초를 처리하지 않은 관행구에 비해 과중이 개당 33∼42 g 더 높았고, 수량은 370∼460 kg/10a (수량지수 110∼l13) 더 증수되었으며, 당도가 0.6∼0.9$^{\circ}$Brix나 높았고, 상품률도 2∼5% 높았으며, 색택도 우수하여 상품성 및 생산성 등이 전체적으로 참외식초 처리구에서 더 우수하였다. 참외식초에 의한 병해충 방제효과에서 흰가루병의 경우 참외식초 500배액, 1,000배액 희석 살포구에서 흰가루병이 발병한 이후 2회 처리에서도 완전 방제가 가능하였으나 2,000배 희석액에서는 부분적으로 방제가 가능하였다. 진딧물의 경우는 참외식초 500배액, 1,000배액, 2,000배액 희석 살포구 및 농약처리구에서 모두 발생 이후 2회 처리에 방제가 가능하였다.

Keywords

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