温室密閉による高温処理が夏キュウリの生育ならびに病害虫発生におよぼす影響

概要

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The effects of high temperature treatment by non-ventilation of greenhouse on fruit yield and the incidence of diseases and insects in summer cucumber production were evaluated against constant ventilation (control). Fruit yield for 5 cultivars of summer cucumber was increased by setting the ventilation temperature at 45℃ from 4:30 until 10:30. Diseases and insects were effectively suppressed by high temperature. Non-ventilation should be done during the lunch break during 11:30-13:20 in consideration of the worker's comfort. Most diseases and insects (except mites) could be controlled. However, with daily high-temperature treatment the number of dead or malformed fruits increased. Until the beginning of harvest, frequent non-ventilation treatment may exterminate diseases and insects and increase the number of fruiting nodes. Thereafter, frequency of the treatment should be reduced to ensure fruit set and growth.
園芸学会の論文
2003-01-15