Optimizing Temperature and Photoperiod in a Home Cultivation System to Program Normal, Delayed, and Hastened Growth and Development Modes for Leafy Oak-Leaf and Romaine Lettuces

As the risk of open-field cultivation increases with climate change, some analysts say that day when ordinary vegetables will be produced at home is not far away. Moreover, due to recent coronavirus outbreak, outdoor activities are becoming difficult, leisure can done have become more necessary, and demand for gardening has increased. This study was conducted improve technology hydroponics home. We experimented whether harvest time hastened or delayed by environmentally controlling growing season, what conditions appropriate. Experiments were leafy (Lactuca sativa L. ‘Oak-leaf’ Lactuca var. longifolia, romaine) easily grown in a closed plant cultivator which external air circulate, temperature/photoperiod controlled. Two settings temperature (25/18 °C 20/15 °C; day/night) three photoperiod (10, 14, 18 hours; employed. It took total four weeks from sowing harvest, appropriate predicted yield. result, although there difference depending on vegetable variety, setting 25/18 14 hours most suitable growth, growth.