Variation in Root Development Response to Flooding among 92 Soybean Lines during Early Growth Stages
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概要
- 論文の詳細を見る
Maintaining root function is crucial for favorable plant growth under flooding. The genetic variation in the response of root development to flooding is unclear, because measurement of root growth is time consuming, especially with numerous lines. To overcome the methodological problems and to reveal the effect of flooding on root development and its genetic variation, we developed a new capillary watering system without soil medium and raised cotyledon-stage seedlings of 92 soybean lines with and without flooding. After 7 days of flooding, dry weights (DW) and root characteristics were determined and the results were compared with those in non-flooded plants. The root DW decreased linearly with decreasing total root length and root surface area, and the degree of damage varied greatly among lines. Short-term flooding inhibited root elongation and branching, but not in flood-tolerant lines.
- 日本作物学会の論文
著者
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WATANABE Masao
Graduate School of Life Sciences, Tohoku University
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Ishimoto Masao
National Agricultural Res. Center For Hokkaido Region
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Mochizuki Toshihiro
Faculty Of Agriculture Kyushu University
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HARADA Kyuya
National Institute of Agrobiological Resources
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WATANABE Masao
Graduate School of Engineering, Hokkaido University
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Sakazono Satomi
Faculty of Agriculture, Kyushu University
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Nagata Takafumi
Faculty of Agriculture, Kyushu University
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Matsuo Rika
Faculty of Agriculture, Kyushu University
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Kajihara Sayuri
School of Agriculture, Kyushu University
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Shimamura Satoshi
NARO Institute of Crop Science
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Takahashi Ryoji
NARO Institute of Crop Science
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- Preface
- Variation in Root Development Response to Flooding among 92 Soybean Lines during Early Growth Stages