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  1. 紀要論文
  2. 琉球大学農学部学術報告
  3. 40号
  1. 部局別インデックス
  2. 農学部

沖縄におけるヒカンザクラの開花期に関する調査研究(生物生産学科)

http://hdl.handle.net/20.500.12000/3786
http://hdl.handle.net/20.500.12000/3786
5296f1af-7f09-4431-a91d-643f50c88a13
名前 / ファイル ライセンス アクション
KJ00000161715.pdf KJ00000161715.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 沖縄におけるヒカンザクラの開花期に関する調査研究(生物生産学科)
言語 ja
作成者 上里, 健次

× 上里, 健次

ja 上里, 健次

Uesato, Kenji

× Uesato, Kenji

en Uesato, Kenji

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 沖縄諸島におけるヒカンザクラの開花期が,北部地域から始まって南下するという現象について一考してみた。同植物の開花に対しては主として温度要因が考えられることから,八重岳の山道に植栽されているものについて開花,出葉の様相を調べて標高差との関係を検討し,また那覇,宜野湾地区の調査を加えて,地域差も比較した。開花,出葉の程度の調査については,個体毎にその程度をそれぞれ10レベルに分けて行った。得られた結果の概要は,次の通りである。1. 標高290m以上の所では開花は1月下旬にピークを示してきわめて早く,ついで開花が早いのは標高100m以下の低いところであった。標高の中位部の所では総じて開花は遅く,開花期の標高差による傾向も不明で,むしろ標高の高いところほど遅咲きであった。2. 八重岳の山道に連続して植栽されているものすべてをまとめて標高差を見ると,標高の高いほど早く開花するという傾向は,かろうじて有意であった。3. 沖縄北部と南部における開花期の地域差については,八重岳の低標高地のものと比較すると明かに北部に早かった。しかし中位部標高地のものと比較すると有意な差はみられなかった。4. 低温の地域ほど早く開花することの理由については,ヒカンザクラの開花に必要な低温度域が沖縄の最低温期の温度より高いところにあり,そのために12月前後に低温に遭遇する機会の多い地域ほど開花が早くなることがあげられ,結果的に山頂ないし北部において早い開花となるといえる。
内容記述タイプ Other
内容記述 The flowering time of Prunus campanulata in Okinawa has been considered as a special phenomenon, because it starts at the northern area and advances to the south. A possible reason for this phenomenon is descussed in relation to the different elevations of the plants and the respective temperature changes. Investigations were carried out by dividing 10 grades on flowering and leaf expanding aspects. The outline of results obtained are as follows. 1. Along the road side at Yaedake mountain, earliest flowerings were observed at higher places than 290m elevation and followed at lower places below 100m elavation. On the middle places between 100 and 290m, the flowering time was delayed and differences by each trees was great. 2. The general tendency of flowering time, including all trees at the mountain road, showed that they flowered as early as elevation goes up, however it showed minimum significant difference. 3. Locational difference between the northern and southern areas with flowering time, the former area was earlier compared to the lower places in Yaedake area, however it was not a significant difference compared with those of middle places. 4. Higher temperature than lowest winter temperature in Okinawa is needed to flowering of P. campanulata. Due to this reason, trees at higher places or colder places which encounter the low temperature in December or January can open flowers at an earlier time.
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/20.500.12000/3786
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 40, p. 1-7
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