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  1. 紀要論文
  2. 琉球大学農学部学術報告
  3. 30号
  1. 部局別インデックス
  2. 農学部

ネピアグラス (Pennisetum purpureum SCHUMACH) の生産構造におよぼす刈取間隔の影響(畜産学科)

http://hdl.handle.net/20.500.12000/4009
http://hdl.handle.net/20.500.12000/4009
06f5910e-59a5-437d-9c2e-4a86ee546103
名前 / ファイル ライセンス アクション
KJ00000162183.pdf KJ00000162183.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2008-02-14
タイトル
タイトル ネピアグラス (Pennisetum purpureum SCHUMACH) の生産構造におよぼす刈取間隔の影響(畜産学科)
言語 ja
作成者 宮城, 悦生

× 宮城, 悦生

ja 宮城, 悦生

Miyagi, Etsuo

× Miyagi, Etsuo

en Miyagi, Etsuo

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
内容記述
内容記述タイプ Other
内容記述 ネピアグラスの刈取間隔を4週間隔, 5週間隔, 6週間隔および7週間隔の栽培試験を実施し, 刈取間隔がネピアグラスの生産構造および吸光係数におよぼす影響について検討した。1. 群落の生産構造は4,5,6週区はほぼピラミット型を示したが, 7週区は群落の中層部に最大葉面積層が分布した。相対照度は各区ほば同様な低下傾向を示した。また, 最下層の茎数は刈取間隔が長くなるにしたがって減少した。2. 吸光係数は4週区0.495,5週区0.419,6週区0.340,7週区0.308で刈取間隔が長くなるにしたがって小さくなり, 各試験区間に0.1%水準で有意差が認められた。また, 吸光係数と乾物収量およびLAIとの間には0.1%水準で有意な負の相関が認められ, LAIが増大し, 吸光係数が小さくなるにしたがって乾物収量は増加する傾向が認められた。
内容記述タイプ Other
内容記述 A field experiment was conducted to investigate the effect of cutting intervals on the productive structure and light extinction coefficient in the napier grass population. Four plots were set up with the cutting intervals of 4,5,6 and 7 weeks. The results obtained were as follows : 1. The productive structure of the grass population showed somewhat a pyramidal shape on the plots with 4,5 and 6 week-cutting intervals. Whereas the intermediate strata were found to have the highest leaf area on the plot with 7 week-cutting intervals. The relative light intensity tended to decrease the same shape from upper to the lower strata. The number of tillers at the lowest strata decreased with the length of cutting intervals (Fig. 1). 2. The light extinction coefficient (K) were 0.495,0.419,0.340 and 0.308 with the cutting intervals of 4,5,6 and 7 weeks, respectively. And K indicated significated decrease with the length of cutting intervals (Fig. 2). There were highly significant negative correlation between K and dry matter weight, K and leaf area index (Fig. 3). From the results, it was considered that the dry matter yield of the napier grass would be increased by extending the intervals of cutting which cause a decrease of K.
内容記述タイプ Other
内容記述 紀要論文
出版者
言語 ja
出版者 琉球大学農学部
言語
言語 jpn
資源タイプ
資源タイプ departmental bulletin paper
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/4009
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0370-4246
収録物識別子タイプ NCID
収録物識別子 AN00250548
収録物名
言語 ja
収録物名 琉球大学農学部学術報告
書誌情報
号 30, p. 529-532, 発行日 1983-11-19
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