Ventilation at Supra-Optimal Temperature Leading High Relative Humidity Controls Powdery Mildew, Silverleaf Whitefly, Mite and Inhibits the Flowering of Korean Melon in a Greenhouse Cultivation
نویسندگان
چکیده
본 연구는 참외 재배 지에서 흰가루병, 담배가루이 및 두점박이응애가 동시에 발생하였을 때 45, 40, 35°C (대조구)의 온도에서 측창으로 환기 처리 시, 온실 내 온 ․ 습도의 변화, 병충해 발생과 잎말림, 그리고 개화조절에 미치는 효과를 검토하였다. 3월 3일 ‘히든파워’ 대목에 접붙여진 ‘알찬꿀’ 참외를 40cm 간격으로 격리상에 심었고, 위에 언급한 병해충이 모든 처리구에서 발생한 6월 18일부터 7월 13일까지 처리하였다. 온실의 온도는 맑은 날에는 설정 온도 지점까지 증가되었고, 45°C 처리에서 고온 고습이 약 9시간 동안 유지되었다. 주간 최고 기온과 최저 상대습도 차이는 가장 높았다. 11일 후에는 흰가루병과 두점박이응애 피해가 거의 회복되었지만 40°C와 35°C에서는 그렇지 않았다. 14일 후, 담배가루이와 밀도는 45°C에서 유의하게 감소하였으나 흰가루병 증상은 감소하지는 잎말림은 고온에서 유발되었으나 45°C에서도 심하지 26일 새로 나온 줄기의 15 마디의 개화수를 조사한 결과, 암꽃이 전혀 나오지 않았고 수꽃은 1.2개로 나타났다. 이상의 결과는, 고온기에 45°C의 2-3주간 처리는 내부의 고습을 유도하여 담배가루이, 두점박이응애를 통제하고, 개화를 억제하여 참외의 영양 생장을 회복할 수 있는 방법으로 사료되었다.
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ژورنال
عنوان ژورنال: ?????????
سال: 2022
ISSN: ['1450-9148', '2406-1263']
DOI: https://doi.org/10.12791/ksbec.2022.31.1.043