| Budget Amount *help |
¥42,120,000 (Direct Cost: ¥32,400,000、Indirect Cost: ¥9,720,000)
Fiscal Year 2019: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2018: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2017: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2016: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Fiscal Year 2015: ¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
|
|---|
| Outline of Final Research Achievements |
In this research project, we focused on a 'high stem-sugar trait’ (ability to accumulate sucrose, glucose and fructose in the stem), which is the key to using rice straw as livestock feed and bioethanol feedstock. The two main results are as follows. (1) We demonstrated that the high stem-sugar trait can be improved by inhibiting the starch accumulation in the stems, without negative effects on growth, and then established several lines that is superior to existing forage rice varieties with regard to the trait. (2)Through biochemical and physiological analyses on vacuolar invertase, which is involved in sucrose degradation, we have shown that this enzyme is an important factor in controlling the distribution of photosynthetic products in the rice plant, especially to the young panicles, to determine the size of grain.
|
