| Budget Amount *help |
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2022: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2021: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2020: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2019: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2018: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
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| Outline of Final Research Achievements |
Wheat and barley are known to often undergo a phenomenon called pre-harvest sprouting (PHS) in which the seeds germinate before harvesting due to rain because the harvest season overlaps with the rainy season when cultivated in Japan. Since the quality of seeds is remarkably deteriorated when PHS occurs, it has become a serious problem for the stable production of wheat and barley in Japan. To overcome this problem, it is important to breed cultivars with strong seed dormancy that do not germinate even when wet in the rain. We have already identified that an allele of MKK3 gene is necessary for strong seed dormancy. This study has revealed possibility that the MKK also plays an important role for the extremely strong dormancy of wild barley. This result contributes to improve PHS tolerance trait of wheat and barley cultivars.
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