Variation of Regrowth after Cutting in Genotypes of Tall Fescue (Festuca arundinacea Schreb.)

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  • トールフェスクの遺伝子型間における刈取後の再生の変異
  • トールフェスクの遺伝子型間における刈取後の再生の変異〔英文〕
  • トールフェスク ノ イデンシガタカン ニ オケル カリトリゴ ノ サイセイ ノ

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In order to clarify the variation of regrowth after cutting and the factors affecting it, fifteen genotypes of tall fescue were examined over a period of thirty days after cutting. In the early stage of regrowth, the number of tillers was of considerable importance, because the genotypes with many tillers had large amounts of carbohydrates available for regrowth due to the photosynthesis of the large residual leaf area and a large volume of stored tissues remaining after cutting. As time passes, however, the tiller size became progressively important, because plants with large tillers showed high rate of leaf elongation.

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