2013 Fiscal Year Final Research Report
An application of long-term meteorological prediction for wheat management in northern Japan.
| Project/Area Number |
24658215
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Agricultural environmental engineering
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| Research Institution | National Agriculture and Food Research Organization |
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Principal Investigator |
HIROTA Tomoyoshi 独立行政法人農業・食品産業技術総合研究機構, 北海道農業研究センター生産環境研究領域, 上席研究員 (20343949)
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| Co-Investigator(Kenkyū-buntansha) |
NEMOTO Manabu 独立行政法人農業, 食品産業技術総合研究機構北海道農業研究センター生産環境研究領域, 主任研究員 (10469843)
INOUE Satoshi 独立行政法人農業, 食品産業技術総合研究機構北海道農業研究センター生産環境研究領域, 主任研究員 (20354011)
KANNO Hiromitsu 独立行政法人農業, 食品産業技術総合研究機構東北道農業研究センター生産環境研究領域, 上席研究員 (30355276)
HAMASAKI Takahiro 独立行政法人農業, 食品産業技術総合研究機構北海道農業研究センター生産環境研究領域, 主任研究員 (80442789)
NISHIO Zenta 独立行政法人農業, 食品産業技術総合研究機構北海道農業研究センター畑作研究領域, 主任研究員 (80446476)
SHIMODA Seiji 独立行政法人農業, 食品産業技術総合研究機構北海道農業研究センター畑作研究領域, 主任研究員 (80425587)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 小麦 / 長期気象予測 / 温暖化適応 |
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| Research Abstract |
In 2010, a record-setting high summer temperature occurred in Hokkaido, and the yield of winter wheat was reduced to 65% of that in an average year. Summer heat stress has been a major determinant for winter wheat production in Hokkaido. We explored application of long-term meteorological prediction for wheat management. We found that monthly mean temperatures for April and August have been strongly and negatively correlated from 1998 to 2013 in northern Japan. We also found that the combination of lower spring temperatures and higher summer air temperatures lead to a severe imbalance in sink (number of grains) and source (supply of photosynthate) , that is, larger sink size and a curtailed grain-filling period, especially under lower sunshine duration condition. We consider that sink size management and earlier heading of wheat are important and most effective measures against high summer temperature.
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