{"created":"2021-03-01T06:13:38.655936+00:00","id":7008,"links":{},"metadata":{"_buckets":{"deposit":"42018325-0112-4107-a056-2eb859eb90d1"},"_deposit":{"id":"7008","owners":[],"pid":{"revision_id":0,"type":"depid","value":"7008"},"status":"published"},"_oai":{"id":"oai:nagoya.repo.nii.ac.jp:00007008","sets":["643:835:863:865"]},"author_link":["18844","18845"],"item_1615768549627":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_9_alternative_title_19":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Water physiological studies on growth of Pinus thunbergii seedlings under water and salt stress","subitem_alternative_title_language":"en"}]},"item_9_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1984-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"57","bibliographicPageStart":"1","bibliographicVolumeNumber":"7","bibliographic_titles":[{"bibliographic_title":"名古屋大学農学部演習林報告","bibliographic_titleLang":"ja"}]}]},"item_9_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"水ストレスおよび塩類ストレスがクロマツ稚苗の生長におよぼす影響について実験を行うとともに野外においてクロマツの水分関係を主とした測定を行った。これらの結果から乾燥地における造林・緑化問題について考察した。クロマツ稚苗の生長は培地の水ポテンシャルが低下するとともに減少して－10bar区においては殆んど停止し、－14bar区では約半数が枯死した(53)。吸水も同様に培地の水ポテンシャルの低下とともに減退し－10bar区では間もなく吸水停止の状態となった(55)。培地の水ポテンシャルが低下すると無機成分のうちPが減少した。他の成分(N,K,Ca,Na,Mg)のはっきりとした動きはつかめなかった(55,56)。培地に塩類が含まれる場合、塩の種類によって生長の阻害の程度は多少異なった。とくにMgによる生長阻害は大きいようである。培地のNaClの濃度が高くなったとき、Kの吸収は余り低下しないが、Caの吸収はかなり阻害されるようである。これらのストレスによる生長阻害はその原因を除けば生長の回復は速かである。葉から脱水が起ったとき、葉緑体の融合と微細小胞が出現するのが認められた。夏季の日中、野外におけるクロマツの葉の水ポテンシャルは著しく低下し、水欠差は大きくなるが翌朝にはほぼ前日の水準に回復した。海岸砂地のクロマツ稚樹の根のまわりの水ポテンシャルは乾燥つづきの日中には－18bar程度となっていることが認められた。","subitem_description_language":"ja","subitem_description_type":"Abstract"},{"subitem_description":"The effect of water and salt stress to growth of Pinus thunbergii Parl. was studied. 1. The effect of decline in water potential of the root medium (0 to －14 bars) on water and mineral (N, P, K, Ca, Mg, Na) uptake, transpiration, and growth was investigated for Pinus thunbergii yearlings about 100 mg each in fresh weight. Polyethylene glycols – 400 was used as the osmotic substrate. Water uptake, transpiration and growth were decreased as water potential of the root medium was reduced. The growth of pine yearlings at -10 bars was stopped and at -14 bars half of yearlings were dead during 14 days. The rate of water uptake -10 bars was reduced to 13% of the rate at 0 bars. The transpiration rate at -10 bars was decreased to 62% of the rate at 0 bars. The time course of the water uptake at each levels of water potential followed approximately the Mitscherlich curve, whose parameters, the maximum water uptake (A) and the coefficient of water uptake (λ) were correlated closely to the water potential of the root medium. Decline in water potential of Pine root medium (－0.6, to －6.5 bars) reduced P uptake. Absorption of other minerals (N, K, Ca, Mg, Na) did not show significant change. Diurnal patterns in leaf water potential of water deficit were examined with a pine tree in summer clear days. Variations in water potential and water deficit during the day were likely related to changes in evaporative demand of the air. Water deficit-water potential relationships were not same for current year leaves and one year old leaves. In one year old leaves, the relationships shifted to lower potential for given water deficit. 2. Salinization (NaCl, KCl, MgCl_2, MgSO_4, －3.0 to －6.5 bars) reduced growth of pine yearlings. Especially Mg reduced growth of pine yearlings and added NaCl to the medium reduced Ca uptake. 3. The effect of water stress on the structure of organells of pine leaf cells was analysed for the juvenile leaves floating on polyethylene glycols solution by an electron-microscopy. Dehydration (－8 bars, 4 days) induced changes in submicroscopic structure of the cells. The most pronounced changes were chloroplast fusions and increase in number of fine vesicles. They seemed to take place during the plasmolysis and deplasmolysis, which were respectively induced by the dehydration and by washing leaf material with water. Severe dehydration (－15 bars, 4 days) destroyed almost completely all organells of the pine leaf cells and as a result the cells seemed to lose their ability to be deplasmolysed. 4. Water potential of the rhyzosphere (0 to 5 cm depth) of pine yearlings falled to －18 bars in summer clear days. Disappearance of pine yearlings on sand dunes seems to be caused by drought of summer. 5. From these results the problems of planting under dry and saline conditions were discussed. If pine trees are used as the principal species in dry or saline site, it is suggested that adequate amount suitable concentration of some fertilyser especially phosphate, organic matter to soil and mulching for keep soil moisture should be given, in order to maintain the healthy growth.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_9_description_5":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"農林水産研究情報センターで作成したPDFファイルを使用している。","subitem_description_language":"ja","subitem_description_type":"Other"}]},"item_9_identifier_60":{"attribute_name":"URI","attribute_value_mlt":[{"subitem_identifier_type":"HDL","subitem_identifier_uri":"http://hdl.handle.net/2237/8681"}]},"item_9_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.18999/bulnuf.7.1","subitem_identifier_reg_type":"JaLC"}]},"item_9_publisher_32":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"名古屋大学農学部付属演習林","subitem_publisher_language":"ja"}]},"item_9_relation_43":{"attribute_name":"関連情報","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"http://rms1.agsearch.agropedia.affrc.go.jp/contents/JASI/pdf/academy/40-2628.pdf","subitem_relation_type_select":"URI"}}]},"item_9_select_15":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_9_source_id_7":{"attribute_name":"ISSN（print）","attribute_value_mlt":[{"subitem_source_identifier":"0469-4708","subitem_source_identifier_type":"PISSN"}]},"item_9_text_14":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_text_value":"application/pdf"}]},"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":[{"creatorNames":[{"creatorName":"弓場, 譲","creatorNameLang":"ja"}],"nameIdentifiers":[{"nameIdentifier":"18844","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"YUBA, Yuzuru","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"18845","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2018-02-19"}],"displaytype":"detail","filename":"bulnuf_7_1.pdf","filesize":[{"value":"6.0 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"bulnuf_7_1.pdf","objectType":"fulltext","url":"https://nagoya.repo.nii.ac.jp/record/7008/files/bulnuf_7_1.pdf"},"version_id":"df17be18-3696-4dec-842d-2f205dc1dcc1"}]},"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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"水および塩類ストレス下におけるクロマツ苗の生長に関する水分生理学的研究","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"水および塩類ストレス下におけるクロマツ苗の生長に関する水分生理学的研究","subitem_title_language":"ja"}]},"item_type_id":"9","owner":"1","path":["865"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2007-08-21"},"publish_date":"2007-08-21","publish_status":"0","recid":"7008","relation_version_is_last":true,"title":["水および塩類ストレス下におけるクロマツ苗の生長に関する水分生理学的研究"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-01-16T03:52:24.057157+00:00"}