{"created":"2025-08-18T05:52:27.602896+00:00","id":2000843,"links":{},"metadata":{"_buckets":{"deposit":"c12733b8-7abc-48e8-86fa-a3deab3bedba"},"_deposit":{"created_by":19,"id":"2000843","owner":"19","owners":[19],"pid":{"revision_id":0,"type":"depid","value":"2000843"},"status":"published"},"_oai":{"id":"oai:iwate-u.repo.nii.ac.jp:02000843","sets":["1504:1510"]},"author_link":[],"item_16_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2025-07-05","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicNumberOfPages":"8","bibliographicPageEnd":"278","bibliographicPageStart":"271","bibliographicVolumeNumber":"94","bibliographic_titles":[{"bibliographic_title":"日本作物学会紀事","bibliographic_titleLang":"ja"},{"bibliographic_title":"Japanese Journal of Crop Science","bibliographic_titleLang":"en"}]}]},"item_16_date_6":{"attribute_name":"登録日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2025-08-21","subitem_date_issued_type":"Created"}]},"item_16_description_11":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"稲作における営農面積の拡大や温暖化環境に対応した省力化技術に資するため，近年，機械化が実用可能になった疎播苗の特性とその温度応答について東北地域の主要銘柄品種を用いて調査した．試験1では岩手大学において「あきたこまち」を3月下旬から6月中旬にかけて5回に分けて播種を繰り返し，疎播（乾籾60g 箱‒1），標準（同120g箱‒1），密播（同240g箱‒1）の3条件で育苗した稚苗および中苗の苗質を調査した．疎播苗は積算地温の上昇に伴う葉齢進展や地上部および根乾物重の増加が標準や密播よりも大きかった．また，疎播苗は草丈あたりの乾物重が大きく，他の播種密度よりも高い苗充実度を示した．試験2の東北地域の主要銘柄品種における疎播苗（同65～80g箱‒1）と慣行苗（同120～160g箱‒1）の比較においても，疎播苗は栽培地や品種に関わらず，積算気温が400～700℃日の範囲において慣行苗よりも高い乾物重と苗充実度を示した．いずれの試験においても疎播苗は温度1℃あたりの乾物生産量が他の播種密度よりも大きく，このことが幅広い温度域における優れた乾物生産能や苗充実度に寄与していた．したがって，春の異常昇温や大規模経営体での移植作業の遅れに伴う育苗期間の延長など，育苗時の温度環境が上昇した場合でも疎播苗は優れた苗質を維持できることから，移植時期が長期となる大規模経営体や温暖化環境に適応した技術であると考えられる．","subitem_description_language":"ja","subitem_description_type":"Abstract"},{"subitem_description":"The characteristics and temperature responses of sparsely sown rice seedlings were investigated using leading rice cultivars in the Tohoku region. In experiment 1, ‘Akitakomachi’ seedlings were investigated under three sowing conditions: sparse (60 g box-1 of dry seed), standard (120 g box-1), and dense (240 g box-1), at Iwate University in 2020. Compared to the standard and dense sowing conditions, the sparse sowing condition produced seedlings with more vigorous leaf age development and higher dry matter weight with increasing accumulated soil temperature. In addition, sparsely sown seedlings had higher dry matter weight per plant length than those sown under other densities. In experiment 2, the seedling quality of leading cultivars such as ‘Masshigura’, ‘Akitakomachi’, ‘Ginganoshizuku’, ‘Haenuki’, ‘Hitomebore’ and ‘Tennotsubu’ was investigated at each experimental site in the Tohoku region in 2023 and 2024 under sparse sowing (65–80 g box-1) and standard sowing conditions (120–160 g box-1). The sparsely sown seedlings had higher dry matter weight and more seedling vigor than standard seedlings under an accumulated air temperature range of 400–700°C-day, regardless of the experimental site and cultivar. This is attributed to the larger dry matter per unit air temperature of the sparsely sown seedlings. Sparse sowing can maintain superior seedling quality over a wide temperature range; therefore, it is not only beneficial for large-scale operations with long transplanting periods but also helps to prevent the decline of seedling quality under the global warming environmental situation.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_16_publisher_14":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"日本作物学会","subitem_publisher_language":"ja"},{"subitem_publisher":"Crop Science Society of Japan","subitem_publisher_language":"en"}]},"item_16_relation_26":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1626/jcs.94.271","subitem_relation_type_select":"DOI"}}]},"item_16_source_id_25":{"attribute_name":"NCID","attribute_value_mlt":[{"subitem_source_identifier":"AN00189888","subitem_source_identifier_type":"NCID"}]},"item_16_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1349-0990","subitem_source_identifier_type":"EISSN"},{"subitem_source_identifier":"0011-1848","subitem_source_identifier_type":"PISSN"}]},"item_16_version_type_27":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"岩手大学","affiliationNameLang":"ja"},{"affiliationName":"Iwate University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"松波, 麻耶","creatorNameLang":"ja","creatorNameType":"Personal"},{"creatorName":"MATSUNAMI, Maya","creatorNameLang":"en","creatorNameType":"Personal"}],"creatorType":"著"},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"岩手大学","affiliationNameLang":"ja"},{"affiliationName":"Iwate University","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"熊地, 智也","creatorNameLang":"ja","creatorNameType":"Personal"},{"creatorName":"KUMACHI, Tomoya","creatorNameLang":"en","creatorNameType":"Personal"}],"creatorType":"著"},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"株式会社コンマ製作所","affiliationNameLang":"ja"},{"affiliationName":"Konma Co.,Ltd.","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"岡部, 幸喜","creatorNameLang":"ja","creatorNameType":"Personal"},{"creatorName":"OKABE, Kohki","creatorNameLang":"en","creatorNameType":"Personal"}],"creatorType":"著"},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"株式会社コンマ製作所","affiliationNameLang":"ja"},{"affiliationName":"Konma Co.,Ltd.","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"坂田, 敦","creatorNameLang":"ja","creatorNameType":"Personal"},{"creatorName":"SAKATA, Atsushi","creatorNameLang":"en","creatorNameType":"Personal"}],"creatorType":"著"},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"青森県産業技術センター農林総合研究所","affiliationNameLang":"ja"},{"affiliationName":"Aomori Prefectural Industrial Technology 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Yoshiya","creatorNameLang":"en","creatorNameType":"Personal"}],"creatorType":"著"},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"農研機構東北農業研究センター","affiliationNameLang":"ja"},{"affiliationName":"Tohoku Agricultural Research Center, NARO","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"屋比久, 貴之","creatorNameLang":"ja","creatorNameType":"Personal"},{"creatorName":"YABIKU, Takayuki","creatorNameLang":"en","creatorNameType":"Personal"}],"creatorType":"著"},{"creatorAffiliations":[{"affiliationNames":[{"affiliationName":"農研機構東北農業研究センター","affiliationNameLang":"ja"},{"affiliationName":"Tohoku Agricultural Research Center, NARO","affiliationNameLang":"en"}]}],"creatorNames":[{"creatorName":"松波, 寿典","creatorNameLang":"ja","creatorNameType":"Personal"},{"creatorName":"MATSUNAMI, Toshinori","creatorNameLang":"en","creatorNameType":"Personal"}],"creatorType":"著"}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2025-08-18"}],"filename":"jjcs-v94n3p271-178.pdf","filesize":[{"value":"668 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quality","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"東北地域における水稲疎播苗の苗質と温度応答","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"東北地域における水稲疎播苗の苗質と温度応答","subitem_title_language":"ja"},{"subitem_title":"Seedling Quality and Temperature Responses of Sparsely Sown Rice in Nursery Boxes in the Tohoku Region","subitem_title_language":"en"}]},"item_type_id":"16","owner":"19","path":["1510"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2025-08-21"},"publish_date":"2025-08-21","publish_status":"0","recid":"2000843","relation_version_is_last":true,"title":["東北地域における水稲疎播苗の苗質と温度応答"],"weko_creator_id":"19","weko_shared_id":-1},"updated":"2025-08-21T06:37:13.782942+00:00"}