{"created":"2023-05-15T09:56:46.396119+00:00","id":452,"links":{},"metadata":{"_buckets":{"deposit":"7a79fd7e-0328-4bdc-8ab6-f4fcb0540097"},"_deposit":{"created_by":5,"id":"452","owner":"5","owners":[5],"pid":{"revision_id":0,"type":"depid","value":"452"},"status":"published"},"_oai":{"id":"oai:miyazaki-u.repo.nii.ac.jp:00000452","sets":["74","74:26"]},"author_link":["2600","2413","2414","2595","2601","2520","2593","2412"],"item_10001_alternative_title_1":{"attribute_name":"その他（別言語等）のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"ネピアグラス ノ コウリツテキ エイヨウビョウ セイサン ニ ムケタ ヒンシュ ジキ ベツ ビョウセイサン ノ トクチョウ ト センヨウ ショリ ノ コウカ","subitem_alternative_title_language":"ja-Kana"}]},"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2012-05-15","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"78","bibliographicPageEnd":"28","bibliographicPageStart":"25","bibliographic_titles":[{"bibliographic_title":"日本作物学会九州支部会報","bibliographic_titleLang":"ja"},{"bibliographic_title":"Report of the Kyushu Branch of the Crop Science Society of Japan","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"暖地型イネ科牧草のネピアグラス（Pennisetum purpureum Schumach）は,生産性の高さから,飼料作物としての用途に加えてバイオエタノール原料や重金属に対するファイトレメディエーション機能が検討されている.本草種の効率的な栄養苗生産方法が確立されておらず,栽培上のネックとなっている.そこで本研究ではセル-トレイによるネピアグラスの栄養苗生産技術を適用して,栄養苗の生産時期の影響,品種間差および栄養苗出荷前の剪葉処理の影響を検討し,効率的な苗増殖技術を確立することを目的とした.苗生産は圃場で成育した母本を11月に（以下秋苗と称する）,およびポット栽培した母本を温室内で越冬させた後の3～4月に（春苗）各々苗生産を行った.従前のように5月に株分けした再生茎から採取した苗（従来苗）を対照とした.供試品種は,秋苗では矮性晩生品種（dwarf-late,以下DL） および普通品種のWruk wona（WK）,春苗ではDL,矮性早生品種（dwarf-early,以下DE）,WK,および普通品種のMerkeron（ME）,従来苗ではDLとした（実験1）.実験2では栄養苗植え付け後の定着促進･苗質の向上を目的とし,実験1で生産された秋苗のDLとWKを供試し2011年4月16日に地上5cm高で剪葉した区（剪葉区） と無処理の対照区を各々3反復設け,処理38日後の5月24日に草丈,茎数,乾物重を調査した.栄養苗の生産時間（人･分/本）は,従来苗のDLが1.40と有意に高く,秋･春苗では0.20-0.48と約1/7-1/3に低下し,春苗のDLで最も省力的であった.苗の増殖効率はDLを除いた春苗で概して低下し,これは腋芽が分げつに伸長しやすく,苗生産可能な腋芽数が減少したことによると推察されるが,従来法に比べると有意に増加した。セル-トレイ植え付け45（春苗）～47（秋苗） 日後の萌芽率は,秋苗では54-55%と低くなったのに対し,春苗では82-95%でいずれも高くなった.今後の課題としては,秋苗では萌芽率が低く栄養苗の生育が不揃いとなりやすいこと,越冬期間に温室内の苗管理を長期間要すること,母茎が硬く節間の切り分けが多労なことが挙げられる.一方春苗では,母茎が柔らかく切り分けが容易で,萌芽率が高いこと,栄養苗の管理期間が短いなどの利点があるが,増殖効率の向上が課題である.剪葉処理によりDL,WKともに栄養苗の乾物重が有意に減少（P<0.05） したが,茎数はWKでは有意に増加し,DLでは増加の傾向であり,茎数増加が栄養苗移植後の初期成長を促進する効果が推察される.","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"日本作物学会九州支部","subitem_publisher_language":"ja"},{"subitem_publisher":"The Kyushu Branch of the Crop Science Society of 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