Varietal differences in next year growth of timothy on the sowing from summer onward

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  • FUJII Hiroki
    Hokkaido Research Organization Animal Research Center
  • TANAKA Tsuneki
    Hokkaido Research Organization Animal Research Center
  • IIDA Kenji
    Hokkaido Research Organization Kitami Agricultural Experiment Station

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Other Title
  • チモシーの夏以降の播種における翌年の生育の品種間差異
  • チモシー ノ ナツ イコウ ノ ハシュ ニ オケル ヨクネン ノ セイイク ノ ヒンシュ カン サイ

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<p>We investigated the influence of sowing time from summer onward on the next year’s growth response of timothy (Phleum pratense L.) using six cultivars differing in maturity. In every cultivars, the dry matter yield of the first harvest sown in September remarkably decreased as compared to those sown in August, there were observed in the decreasing degree of yield among the cultivars. The yearly total yield, including the aftermath of the delayed sowing, was not able to catch up with an August sowing. A decreasing degree of first harvest in timothy was largest in extremely early cv. Kunpuu, and relatively smaller in early cv. Natsuchikara, and middle cvs. Natsupirika and Kiritappu. Anyway, to make the best use the yield potential of each cultivars, it is important not to delay the sowing time to make cultivars express the genuine growth from the first crop. However, it should be considered that these results were on the data of single year’s experiment.</p>

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