Variation in root development response to flooding among 92 soybean lines during early growth stages

Satomi Sakazono, Takafumi Nagata, Rika Matsuo, Toshihiro Mochizuki, Sayuri Kajihara, Masao Watanabe, Satoshi Shimamura, Ryoji Takahashi, Kyuya Harada, Masao Ishimoto, Satomi Sakazono

    研究成果: Article査読

    17 被引用数 (Scopus)

    抄録

    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.

    本文言語English
    ページ(範囲)228-236
    ページ数9
    ジャーナルPlant Production Science
    17
    3
    DOI
    出版ステータスPublished - 2014

    ASJC Scopus subject areas

    • 農業および作物学

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