| Budget Amount *help |
¥15,470,000 (Direct Cost: ¥11,900,000、Indirect Cost: ¥3,570,000)
Fiscal Year 2011: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2010: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2009: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
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| Research Abstract |
The time of flower evolution of rice was analyzed by observing panicle initiation in the experiments where water temperature and day length were controlled. We obtained the following new important findings ; 1) photoperiod sensitivity was initiated simply by the number of days from germination and not related to a leaf age, 2) the decrease of day length promoted panicle initiation even under long day conditions, 3) the expression of flowering activator Hd3a was concurrently increased by the decrease of day length and 4) air temperature affected possibly panicle initiation after inductive short day treatment.
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