Evaluation of weed suppression by ground cover plants and evaluation of azetidine-2-carboxylic acid as an allelochemical from <i>Liriope muscari</i> (Decne.) L.H.Bailey

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  • Maeda Hiroko
    United Graduate School of Agricultural Sciences, Tokyo University of Agriculture and Technology
  • Okumura Kou
    United Graduate School of Agricultural Sciences, Tokyo University of Agriculture and Technology
  • Nakamura Riri
    United Graduate School of Agricultural Sciences, Tokyo University of Agriculture and Technology
  • Nomura Takashi
    United Graduate School of Agricultural Sciences, Tokyo University of Agriculture and Technology
  • Fujii Yoshiharu
    United Graduate School of Agricultural Sciences, Tokyo University of Agriculture and Technology

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  • 被覆植物を用いた雑草抑制の評価とヤブラン（<i>Liriope muscari</i> (Decne.) L.H.Bailey）が生産する植物生育阻害物質アゼチジン-2-カルボン酸の評価
  • 被覆植物を用いた雑草抑制の評価とヤブラン(Liriope muscari (Decne.) L.H.Bailey)が生産する植物生育阻害物質アゼチジン-2-カルボン酸の評価
  • ヒフク ショクブツ オ モチイタ ザッソウ ヨクセイ ノ ヒョウカ ト ヤブラン(Liriope muscari (Decne.) L.H.Bailey)ガ セイサン スル ショクブツ セイイク ソガイ ブッシツ アゼチジン-2-カルボンサン ノ ヒョウカ

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Abstract

<p>In order to select ground cover plants with effective weed management abilities, field experiments with seven perennial plants including Thymus serpyllum, Phlox subulata, Phyla nodiflora, Lampranthus spectabilis, Ophiopogon japonicus, Mentha pulegium and Liriope muscari were conducted to evaluate their weed suppression for five-years. Cover degree, multiple dominance ratio (MDR), dry weight of weeds, and the number of weeds at each plots were evaluated. L. muscari showed most practical weed suppression from second year to fifth year. L. muscari had strong allelopathic activity by bioassays. This Japanese domestic ground cover plant contained azetidine-2-carboxylic acid, a non-proteinogenic amino acid analogues to proline, at high concentration in root and leaves, and supposed to have a role as allelochemical to suppress weed on the field.</p>

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