Lolium属牧草の生育ならびに組成におよぼす播種期の移動の影響に関する研究

アクセス数 : 832
ダウンロード数 : 110

今月のアクセス数 : 1
今月のダウンロード数 : 2
ファイル情報(添付)
JFacFishAnim_10_47.pdf 989 KB 種類 : 全文
タイトル ( jpn )
Lolium属牧草の生育ならびに組成におよぼす播種期の移動の影響に関する研究
タイトル ( eng )
Influences of Variation of Seeding Time on the Growth and Constituents of Ryegrasses, the Genus Lolium
作成者
黒住 久称
浅野 素直
尾形 昭逸
収録物名
広島大学水畜産学部紀要
Journal of the Faculty of Fisheries and Animal Husbandry, Hiroshima University
10
1
開始ページ 47
終了ページ 60
抄録
Field experiments and pot trials were carried out to elucidate the performances of italian ryegrass 2n, 4n, perennial ryegrass 2n and 4n, seeded at the various date and grown under the various photoperiods.

1) Both italian ryegrass 2n, 4n and perennial ryegrass 2n, 4n reduced their fresh weights by delaying of seeding time during spring season. And, the influence of delaying of seeding on their growth had appeared more severely on italian ryegrass than perennial ryegrass.

2) When temperature was below about 10℃, the effects of photoperiodic treatments on italian ryegrass were recognized more apparently on their plant height and tillering number.

3) However, as growing temperature became higher, effects of photoperiodic treatments on their growth became more difficult to be recognized.

4) Under lower temperature and short daylengh, both of italian and perennial ryegrass were increasing their tillers but not their plant height.

However, these effects of temperature and daylength were more remarkable on italian than on perennial ryegrass.

5) Both of diploid 4n of italian and perennial ryegrass had higher tolerable ability to summer depression than their 2n.

6) Delaying of seeding in spring was resulted in reducing of crude protein contents and its production in both of italian and perennial ryegrass but increasing of their crude fiber contents.

7) Contents of soluble carbohydrate of italian and perennial ryegrass were reduced by delayling of seeding. Constituent percentages of starch and fructosan to soluble carbohydrate were also influenced by shifting of seeding time, that is, when both of grasses were grown under higher temperature, percentages of fructosan to soluble carbohydrate became lower.
NDC分類
農業 [ 610 ]
言語
日本語
資源タイプ 紀要論文
出版者
広島大学水畜産学部
発行日 1971-07-20
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 0440-8756
[NCID] AN00213563
[NAID] 40018463853