登熟期の旱ばつ下における日本型稲の葉身水ポテンシャルと穀実生産
書誌事項
- タイトル別名
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- Water status and grain production of several Japonica rices under grain-filling stage drought.
- 登熟期の旱ばつ下における日本型稲の葉身水ポテンシャルと穀実生産〔英文〕
- トウジュクキ ノ カンバ ツカ ニ オケル ニホンガタ イネ ノ ヨウシンミ
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This study was designed to compare leaf water potential (LWP) and grain yield responses to drought imposed during the grain-filling stage in several Japonica dryland (upland) and wetland (paddy) rice cultivars (Oryza sativa L.). Six rice cultivars (5 dryland, one wetland) were each grown in two upland plots. The irrigation of the one plot was discontinued on August 15, while the remaining plot received irrigation as before. Heading occurred between 0 and 12 days after the cessation of irrigation. Thereafter, the LWP for both plots was monitored at midday. Traditional dryland cultivars had a higher ability of maintenance and recovery of LWP than improved dryland and wetland cultivars. The dry-matter production of the shoot and the grain of the main culm decreased with decreasing LWP in all the cultivars tested. Furthermore, there was a close correlation between the grain yield of the main culm and of the whole plant. The result therefore suggests that the maintenance of LWP may be one of the most important factors for the grain yield under drought during the grain-filling stage.
収録刊行物
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- 日本作物学会紀事
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日本作物学会紀事 58 (2), 212-216, 1989
日本作物学会
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詳細情報 詳細情報について
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- CRID
- 1390282679259452032
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- NII論文ID
- 110001731974
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- NII書誌ID
- AN00189888
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- ISSN
- 13490990
- 00111848
- http://id.crossref.org/issn/00111848
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- NDL書誌ID
- 3248991
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可