{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1390282679442698752.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1626/pps.1.233"}},{"identifier":{"@type":"HDL","@value":"http://hdl.handle.net/20.500.12000/4867"}},{"identifier":{"@type":"URI","@value":"https://u-ryukyu.repo.nii.ac.jp/records/2003588"}},{"identifier":{"@type":"URI","@value":"http://www.tandfonline.com/doi/pdf/10.1626/pps.1.233"}},{"identifier":{"@type":"NAID","@value":"130003407335"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@language":"en","@value":"Physio-morphological Studies of F1 Hybrids in Rice (Oryza sativa L.). Photosynthetic ability and yield."},{"@value":"Physio-morphological Studies of F1 Hybrids in Rice (<i>Oryza sativa</i>L.): Photosynthetic ability and yield"}],"dc:language":"en","description":[{"type":"abstract","notation":[{"@language":"en","@value":"Photosynthetic ability in terms of CO<SUB>2</SUB> exchange rate and leaf area, dry matter accumulation(dry weight)and other important growth components along with yield and yield contributing characters in two F<SUB>1</SUB> hybrids of Akebono × Chiyonishiki(A×C)and Zenith × Akebono(Z×A)were studied. The photosynthetic rate at the flowering stage was lower than that at the panicle initiation stage in all the inbred parent cultivars and F<SUB>1</SUB> hybrids. Heterosis in photosynthetic rate was higher at the panicle initiation stage than that at the flowering stage. Pre-anthesis leaf area in the F<SUB>1</SUB> hybrid was significantly larger than that in the parent cultivars. However, the post-anthesis decline in leaf area was more rapid in the F<SUB>1</SUB> hybrids than in the parent cultivars and its magnitude was the highest in the F<SUB>1</SUB> hybrid of Z × A which was tall having long and curved panicles. Pre-anthesis dry matter accumulation in both hybrids was significantly higher in the F<SUB>1</SUB> plants than the parental cultivars, but post-anthesis dry matter accumulation in the F<SUB>1</SUB> hybrid was lower than the mid-parental value in Z × A. The degree of heterosis in grain yield varied with the hybrid combination, an average heterosis being 1.03. Heterosis in grain yield was closely associated with heterosis in harvest index."}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410282679442698753","@type":"Researcher","foaf:name":[{"@language":"en","@value":"Nurul Alam Khan"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282679442698752","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000252777803"}],"foaf:name":[{"@language":"en","@value":"Ishimine Yukio"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282679442698755","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000252777804"}],"foaf:name":[{"@language":"en","@value":"Tsuzuki Eiji"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282679442698754","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000252777805"}],"foaf:name":[{"@language":"en","@value":"Nakamura Ichiro"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282679442698756","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000252777802"}],"foaf:name":[{"@language":"en","@value":"Murayama Seiichi"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"1343943X"},{"@type":"EISSN","@value":"13491008"},{"@type":"ISSN","@value":"1343943X"},{"@type":"NCID","@value":"AA11162156"}],"prism:publicationName":[{"@language":"en","@value":"Plant Production Science"},{"@language":"en","@value":"Plant Prod. Sci."}],"dc:publisher":[{"@language":"en","@value":"CROP SCIENCE SOCIETY OF JAPAN"},{"@language":"ja","@value":"日本作物学会"}],"prism:publicationDate":"1998","prism:volume":"1","prism:number":"4","prism:startingPage":"233","prism:endingPage":"239"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","url":[{"@id":"https://u-ryukyu.repo.nii.ac.jp/records/2003588"},{"@id":"http://www.tandfonline.com/doi/pdf/10.1626/pps.1.233"}],"availableAt":"1998","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=CO%3CSUB%3E2%3C/SUB%3E%20exchange%20rate","dc:title":"CO<SUB>2</SUB> exchange rate"},{"@id":"https://cir.nii.ac.jp/all?q=Dry%20matter","dc:title":"Dry matter"},{"@id":"https://cir.nii.ac.jp/all?q=F%3CSUB%3E1%3C/SUB%3E%20hybrid","dc:title":"F<SUB>1</SUB> hybrid"},{"@id":"https://cir.nii.ac.jp/all?q=Heterosis","dc:title":"Heterosis"},{"@id":"https://cir.nii.ac.jp/all?q=Leaf%20area","dc:title":"Leaf area"},{"@id":"https://cir.nii.ac.jp/all?q=Yield","dc:title":"Yield"}],"dcterms:subject":[{"subjectScheme":"Other","notation":[{"@language":"en","@value":"CO_2"}]},{"subjectScheme":"Other","notation":[{"@language":"en","@value":"exchange rate"}]},{"subjectScheme":"Other","notation":[{"@language":"en","@value":"Dry matter"}]},{"subjectScheme":"Other","notation":[{"@language":"en","@value":"F_1 hybrid"}]},{"subjectScheme":"Other","notation":[{"@language":"en","@value":"Heteroisis"}]},{"subjectScheme":"Other","notation":[{"@language":"en","@value":"Leaf area"}]},{"subjectScheme":"Other","notation":[{"@language":"en","@value":"Yield"}]}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360011144674038656","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Possibility of Increasing Yield Potential of Rice by Reducing Panicle Height in the Canopy. II. Canopy Photosynthesis and Yield of Isogenic Lines"}]},{"@id":"https://cir.nii.ac.jp/crid/1360855570897752192","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Developing yield potential of cereals"}]},{"@id":"https://cir.nii.ac.jp/crid/1361418520116395392","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Leaf Nitrogen, Photosynthesis, and Crop Radiation Use Efficiency: A Review"}]},{"@id":"https://cir.nii.ac.jp/crid/1362825896093149440","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Radiation absorption, growth and yield of cereals"}]},{"@id":"https://cir.nii.ac.jp/crid/1363107371196211456","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Heterosis in Rice"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001204282361856","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"On the Solar Energy Balance of Rice Population in Relation to the Growth Stage"},{"@language":"ja","@value":"水稲個体群のエネルギー収支の生育に伴う変化について"},{"@language":"ja-Kana","@value":"スイトウ コタイグン ノ エネルギー シュウシ ノ セイイク ニ トモナウ ヘンカ ニ ツイテ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679259254144","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Studies on matter production of F1 hybrid in rice. I. Heterosis in the single leaf photosynthetic rate."},{"@language":"ja","@value":"イネの一代雑種の物質生産に関する研究 : I. 個葉の光合成速度におけるヘテロシス"},{"@value":"イネの1代雑種の物質生産に関する研究-1-個葉の光合成速度におけるヘテロシス〔英文〕"},{"@language":"ja-Kana","@value":"イネ ノ 1ダイ ザッシュ ノ ブッシツ セイサン ニ カンスル ケンキュウ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679695771264","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"HETEROSIS IN VEGETATIVE GROWTH OF THE RICE PLANT : Genetical Studies on Rice Plant, XXXIX"},{"@language":"ja","@value":"稲の栄養生長におけるヘテロシス : 稲の交雑に関する研究 XXXIX"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679696256000","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Basic Studies on Utiliization of Hybrid Vigor in Rice : IV. 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