[PROBLEMS] To reduce power consumption by switching between artificial light and natural light according to the irradiation condition of sunlight, to keep the growing temperature constant using a vehicle air conditioner, and to bring the grown plants to sales offices and consumers Provided is a vehicle-mounted plant breeding system that is directly supplied and prevents plants from being damaged during transportation to reduce yield and increase transportation costs. When a plant is grown by natural light, the side opening is opened so that natural light can be irradiated to the plant in each cultivation tank, and the storage battery unit 23 is charged with electric power from a photovoltaic power generation panel 15 and the storage battery is stored. The nutrient solution supply means 35 is driven by the electric power output from the unit to circulate and supply the nutrient solution to the cultivation tank. When growing plants with artificial light, the LED lighting means 31 is turned on by the power from the storage battery unit with the side openings closed, and artificial light is irradiated to the plants planted in each cultivation tank and the nutrient solution supply means Is driven to circulate and supply nutrient solution to the cultivation tank. [Selection] Figure 4【課題】太陽光の照射状況に応じて人工光と自然光を切り替えて消費電力を低減し、車両の空調装置を使用して育成温度を一定に保ち、育成された植物を販売所や消費者へ直接供給し、輸送時に植物が傷んで歩留まりが悪くなったり、輸送コストが増大したりするのを回避する車両搭載植物育成システムを提供する。【解決手段】自然光により植物を育成する際には側面開口を開放して各栽培槽の植物へ自然光を照射可能にした状態で太陽光発電パネル１５からの電力を蓄電池ユニット２３に充電すると共に蓄電池ユニットから出力される電力により養液供給手段３５を駆動して栽培槽へ養液を循環供給する。人工光により植物を育成する際には側面開口を閉鎖した状態で蓄電池ユニットからの電力によりＬＥＤ照明手段３１を点灯して各栽培槽に植えられた植物へ人工光を照射すると共に養液供給手段を駆動して栽培槽へ養液を循環供給する。【選択図】図４
