北海道の基幹牧草であるチモシー (Phleum pratense L.) の可溶性炭水化物含量および糖組成の変動に及ぼす要因  [in Japanese] Factors Affecting Water Soluble Carbohydrates Content and Sugar Composition of Timothy (Phleum pratense L.), the Leading Grass Species in Hokkaido  [in Japanese]

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Abstract

北海道の基幹草種であるチモシーを対象に,地域,生育ステージ,刈取り時刻および品種などの要因を設定し,可溶性炭水化物(WSC)含量および糖組成に及ぼす影響を調べた.地域において,1番草のWSC含量は最大2.67%(乾物中),2番草では2.37%の差があった.生育ステージでは,6月30日(出穂期)にWSC含量がピークに達した.しかし,グルコース,フルクトースおよびスクロース含量は増加しなかった.刈取り時刻では,7時からWSC含量が増加し始め,17時に最大値に達し,その差は3.00%(乾物中)になった.グルコースおよびフルクトース含量は13時に最大値に達した.品種では,1番草はクンプウ(極早生)とノサップ(早生),2番草はノサップがそれぞれWSC,グルコースおよびフルクトース含量が高かった.ただし,グルコースおよびフルクトース含量の増加はわずかであった.以上の結果から,チモシーのWSC含量と糖組成は,地域,生育ステージ,刈取り時刻および品種などの要因により著しく変動することが明らかになった.

In this study, factors, such as the region, growth stage, harvest time and cultivars, affecting water soluble carbohydrates (WSC) content and sugar composition of timothy were examined. Maximum differences in WSC content (dry basis) were found at the first and second cutting, 2.67% and 2.37%, respectively in different regions. Though the WSC content was at its peak on June 30 (heading stage), glucose, fructose and sucrose contents were constant. The WSC content continued to increase from 7 : 00 to 17 : 00, and resulted in 3.00% (dry basis) increase. The glucose and fructose contents reached its maximum at 13 : 00. The WSC, glucose and fructose contents in Kunpu (extremely early maturing cultivars) and in Nosappu (early maturing cultivars) at the first cutting and the Nosappu at the second cutting were the highest among the four cultivars, while glucose and fructose contents increased only slightly. The obtained results indicate that the WSC content and sugar composition of timothy vary significantly with in the region, growth stage, harvest time and cultivars.

Journal

  • Nihon Chikusan Gakkaiho

    Nihon Chikusan Gakkaiho 77(4), 495-500, 2006-11-25

    Japanese Society of Animal Science

References:  18

Cited by:  4

Codes

  • NII Article ID (NAID)
    10025839343
  • NII NACSIS-CAT ID (NCID)
    AN00195188
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    1346907X
  • NDL Article ID
    8590051
  • NDL Source Classification
    ZR22(科学技術--農林水産--畜産)
  • NDL Call No.
    Z18-348
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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