{"@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/1390282679749106944.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.11275/turfgrass1972.29.129"}},{"identifier":{"@type":"NAID","@value":"130003878783"}}],"dc:title":[{"@language":"en","@value":"Assessment of competitiveness between manilagrass(Zoysia matrella(L.) Merr.) and Killinga brevifolia Rottb. var. leiolepis(Franch. et Savat.) Hara using a replacement series experiment."},{"@value":"コウシュンシバ（Ｚｏｙｓｉａ　ｍａｔｒｅｌｌａ（Ｌ．）Ｍｅｒｒ．）‐ヒメクグ（Ｋｉｌｌｉｎｇａ　ｂｒｅｖｉｆｏｌｉａ　Ｒｏｔｔｂ．　ｖａｒ．　ｌｅｉｏｌｅｐｉｓ（Ｆｒａｎｃｈ．　ｅｔ　Ｓａｖａｔ．）Ｈａｒａ）間の競争力の置換裁培法による検定"}],"dc:language":"ja","description":[{"type":"abstract","notation":[{"@language":"en","@value":"<I>Killinga brevifolia</I> var. <I>leiolepis</I> is a major perennial weed in turf, and its growth pattern is similar to that of manilagrass, the most popular trufgrass species in Japan. Competitiveness between both species was assessed by means of a replacement series experiment. They were planted in soil-filled containers at 5 different ratios of 16: 0, 12: 4, 8: 8:, 4: 12 and 0: 16, and grown for 4 months in the field conditions. The number of shoots, the number and length of rhizomes, and the dry weight of shoots, rhizomes and roots were measured. Relative yields (RY) and the relative yield totals (RYT) were calculated using the biomass data. Shapes of the biomass RY curves of both species in replacement series diagrams indicated the extreme aggressiveness of <I>K. brevifolia</I> against manilagrass (Fig.1), the trend being severer in rhizomes than in shoots. RYT values less than 1.0 obtained in the mixture plots suggested that allelopathic interaction might take part in this interference. Growth of individuai plants presented by the numbers of both aerial shoots and rhizomes were reduced in <I>K. brevifolia</I> but increased in manilagrass at the higher proportions of the own species (Tables 1 and 2) . Aggressivity of <I>K. brevifolia</I> became apparent when the rhizomes of each plant began invading to the territory of the other but before crowded with the aerial shoots (Figs. 2 and 3) ."},{"@value":"芝地の多年生雑草ヒメクグのコウシュンシバに対する競争力を, de Witの置換栽培法によって検定した。両種の個体数の割合を16: 0, 12: 4, 8: 8, 4: 12および0: 16として野外で約4か月生育させ, 地上シュートの形成数, 根茎 (コウシュンシバでは根茎+ほふく茎) 分枝の数および長さ, ならびに茎葉部, 根韮部および根部の乾物重を測定した。<BR>両種の乾物重の相対収量 (RY) 値曲線の比較から, ヒメクグのコウシュンシバに対する著しい優位性が明らかになった。また, この傾向は茎葉部よりも根茎部においてより顕著であった。相対収量合計 (RYT) 値は混植によって1.0以下になり, ヒメクグによるコウシュンシバの抑制に非競合的要因が関与している可能性が示唆された。地上シュート数および根茎分枝数でみた個体当りの生長量は, ヒメクグでは自種の割合が少ないほど多かったが, コウシュンシバでは全く逆であった。コウシュンシバに対するヒメクグの優位性は, 地上部はまだ混み合っていないが, それぞれの根茎が伸長して他個体の生育領域に侵入し始めた頃から始まり, 生育の進展につれて顕著になった。"}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410282679749106944","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000254519662"}],"foaf:name":[{"@language":"en","@value":"ITO Misako"},{"@language":"ja","@value":"伊藤 操子"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"京都大学大学院農学研究科"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282679749106945","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000254519661"}],"foaf:name":[{"@language":"en","@value":"GOTO Seijiro"},{"@language":"ja","@value":"後藤 誠二朗"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"京都大学大学院農学研究科"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"02858800"},{"@type":"LISSN","@value":"02858800"},{"@type":"EISSN","@value":"18844022"}],"prism:publicationName":[{"@language":"en","@value":"Journal of Japanese Society of Turfgrass Science"},{"@language":"ja","@value":"芝草研究"},{"@language":"en","@value":"Journal of Japanese Society of Turfgrass Sciense"},{"@language":"ja","@value":"芝草研究"}],"dc:publisher":[{"@language":"en","@value":"Japanese Society of Turfgrass Science"},{"@language":"ja","@value":"日本芝草学会"}],"prism:publicationDate":"2001","prism:volume":"29","prism:number":"2","prism:startingPage":"129","prism:endingPage":"134"},"availableAt":"2001","dataSourceIdentifier":[{"@type":"JALC","@value":"oai:japanlinkcenter.org:0007244634"},{"@type":"CIA","@value":"130003878783"}]}