Photo-thermal responses of rice panicle initiation and their modeling
| Project/Area Number |
21380152
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Agricultural environmental engineering
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| Research Institution | Iwate University |
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Principal Investigator |
OKADA Masumi 岩手大学, 農学部, 教授 (10355274)
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| Co-Investigator(Kenkyū-buntansha) |
SAMESHIMA Ryoji 農業・食品産業技術総合研究機構, 東北農業研究センター, 上席研究員 (70355452)
SHIMONO Hiroyuki 岩手大学, 農学部, 准教授 (70451490)
YOKOI Shuji 岩手大学, 農学部, 准教授 (80346311)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| 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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| Keywords | 発生・分化 / イネ / 日長感応 / 基本栄養生長 / 花成促進因子 / 基本栄養成長 / Hd3a |
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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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Report
(4 results)
Research Products
(19 results)
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[Journal Article] Gene expression profiling of rice grown in free air CO_2 enrichment(FACE)and elevated soil temperature2011
Author(s)
Fukayama, H., Sugino, M., Fukuda, T., Masumoto, C., Taniguchi, Y., Okada, M., Sameshima, R.,Hatanaka, T., Misoo, S., Hasegawa, T., Miyao, M.
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Journal Title
Field Crops Research
Volume: 121
Pages: 195-199
Related Report
Peer Reviewed
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[Journal Article] Comparison of temperature-gradient chamber experiments at different latitudes for estimating the effects of global warming on the heading date of paddy rice.2010
Author(s)
Hamasaki, T., Nemoto, M., Sameshima, R., Ohno, H., Ohara, G., Wakiyama, Y., Maruyama, A., Ozawa, K.
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Journal Title
Journal of Agricultural Meteorology
Volume: 66
Pages: 193-200
NAID
Related Report
Peer Reviewed
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[Presentation] 水稲の7葉期以前日長感応2011
Author(s)
小沢聖、高橋正史、後藤愼吉、岡田益己、濱崎孝弘
Organizer
日本農業気象学会2011年全国大会
Place of Presentation
鹿児島大学(鹿児島県)
Year and Date
2011-03-16
Related Report
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