| Budget Amount *help |
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2021: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2020: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2019: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2018: ¥8,320,000 (Direct Cost: ¥6,400,000、Indirect Cost: ¥1,920,000)
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| Outline of Final Research Achievements |
Artificial light-emitting diode (LED) plant factories are becoming increasingly popular, but there are differences in the quality of products compared to cultivation under sunlight. One of the reasons for this may be that LED light does not contain ultraviolet light. The objective of this study was to develop an alternative treatment to the UV effect in plant factory.
Red leaf lettuce was irradiated with flashing lights with 3-second to 30-minute cycles as a treatment that does not require a new light source, and the effects of these cycles on anthocyanin accumulation were examined in red leaf lettuce. However, sufficient anthocyanin synthesis was not observed with either cycle of flushing light, nor with either UV-B or UV-A. On the other hand, the most effective light was blue light at PPFD of more than 100 μmol/m2s.
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