| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Outline of Final Research Achievements |
For profitable and sustainable production of vegetables in plant factories, methods for environmental control based on the physiological activity of intact plants that respond to change in environmental conditions are essential. We quantified and modeled the effects of environmental conditions and transpiration rate on calcium and nitrate absorption and partitioning in roots and leaves of butterhead lettuce. The model was successfully applied for quantification of tipburn resistance in cultivars by estimating the model parameters of each cultivars. In additions, the model could be applied to reduce nitrate accumulation in leafy vegetables by estimating nitrate absorption and amount of nitrate required for growth based on the model, and supplying the estimated amount of nitrate.
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