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[{"key": "dc.contributor.advisor", "value": "Kyt\u00f6viita, Minna-Maarit", "language": null, "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Tuorila, Mirella", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2025-03-24T10:12:46Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2025-03-24T10:12:46Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2025", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/101019", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "P\u00f6lytys on v\u00e4ltt\u00e4m\u00e4t\u00f6nt\u00e4 kasvien lis\u00e4\u00e4ntymiselle. Arviolta 75 % maailman viljelykasveista on riippuvaisia p\u00f6lytt\u00e4jien toiminnasta, joten p\u00f6lytyksen onnistuminen vaikuttaa merkitt\u00e4v\u00e4st\u00e4 viljelykasvien satojen tuottavuuteen. Satojen suuruuteen vaikuttaa my\u00f6s kasvin kasvuun liittyv\u00e4t tekij\u00e4t, kuten ravinteiden saanti ja vedenottokyky. Sienijuurisymbioosi on kasvien ja sienien v\u00e4linen vuorovaikutussuhde, jonka avulla kasvin ravinteiden saanti paranee.\nAikaisemmissa tutkimuksissa on todettu sienijuuren vaikuttavan positiivisesti sek\u00e4 kasvien kasvuun ett\u00e4 niiss\u00e4 tapahtuvien p\u00f6lytt\u00e4j\u00e4vierailuiden m\u00e4\u00e4riin. Sienijuuren avulla voisi siis olla mahdollista lis\u00e4t\u00e4 ruoantuotantoa tehostamalla kasvien kasvua. Tutkimuksen tavoitteena oli selvitt\u00e4\u00e4, vaikuttaako sienijuurisymbioosi kasvin kukkien ominaisuuksiin ja sit\u00e4 kautta my\u00f6s niiss\u00e4 tapahtuvien p\u00f6lytt\u00e4j\u00e4vierailuiden m\u00e4\u00e4riin. Tutkimuslajeina olivat mets\u00e4kurjenpolvi (Geranium sylvaticum) sek\u00e4 ker\u00e4sienijuurikanta (Glomeromycota). Tutkittavia ominaisuuksia olivat kukan ter\u00e4-, hede- ja emilehtien painot sek\u00e4 ter\u00e4- ja emilehtien pituudet. Lis\u00e4ksi tarkasteltiin sienijuuren vaikutusta kukkien ter\u00e4lehtien v\u00e4riin ja kasvien kukissa tapahtuvien p\u00f6lytt\u00e4j\u00e4vierailuiden m\u00e4\u00e4riin. Sienijuurella havaittiin olevan vaikutusta emilehtien pituuteen sek\u00e4 p\u00f6lytt\u00e4j\u00e4vierailuiden m\u00e4\u00e4r\u00e4\u00e4n ja kestoon. Sienijuurellisten kasvien emilehdet olivat 8\u201310 prosenttia pidempi\u00e4 kuin sienijuurettomien kasvien emilehdet. P\u00f6lytt\u00e4j\u00e4t vierailivat useammin ja kauemmin sienijuurellisten kasvien kukissa kuin sienijuurettomien kasvien. Kukkien ter\u00e4lehtien pituudessa, painossa tai v\u00e4riss\u00e4 ei havaittu eroa sienijuurellisten ja -juurettomien kasvien v\u00e4lill\u00e4. My\u00f6sk\u00e4\u00e4n hedelehtien painoissa ei huomattu eroa sienijuurik\u00e4sittelyiden v\u00e4lill\u00e4. Tutkimuksen tulokset osoittavat, ett\u00e4 sienijuurisymbioosi voi lis\u00e4t\u00e4 kasvin kukissa vierailevien p\u00f6lytt\u00e4jien m\u00e4\u00e4r\u00e4\u00e4. T\u00e4m\u00e4 johtuu todenn\u00e4k\u00f6isesti siit\u00e4, ett\u00e4 p\u00f6lytt\u00e4j\u00e4t suosivat\nsuurempia kukkia. Tulokset voivat auttaa ymm\u00e4rt\u00e4m\u00e4\u00e4n paremmin sienijuuren roolia kasvien ja p\u00f6lytt\u00e4jien v\u00e4lisiss\u00e4 vuorovaikutuksissa.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Pollination is essential for plant reproduction. It is estimated that 75 % of the world's crops depend on pollinators, so the success of pollination has a significant impact on the productivity of cultivated plants. The size of the yield is also affected by factors related to plant growth, such as nutrient intake and water absorption capacity. Mycorrhizal symbiosis is an interaction between plants and fungi, which improves the plant's nutrient uptake. Previous studies have shown that mycorrhiza has a positive effect on both plant growth and the number of pollinator visits they receive. Thus, it may be possible to increase food production by enhancing plant growth with the help of mycorrhiza. The aim of this study was to investigate whether mycorrhizal symbiosis affects the characteristics of plant flowers and, consequently, the number of pollinator visits they receive. The study species were wood crane's-bill (Geranium sylvaticum) and a glomeromycete mycorrhizal strain (Glomeromycota). The characteristics studied were the weights of the flower petals, stamens, and pistils, as well as the lengths of the petals and pistils. In addition, the effect of mycorrhiza on the color\nof the flower petals and the number of pollinator visits to the plant's flowers were examined. Mycorrhiza was found to have an effect on the length of the pistils and the number of pollinator visits. The pistils of mycorrhizal plants were 8\u201310 percent longer than those of non-mycorrhizal plants. Pollinators visited the flowers of mycorrhizal plants more often and for longer periods than the flowers of non-mycorrhizal plants. No difference was observed in the length, weight, or color of the flower petals between mycorrhizal and non-mycorrhizal plants. No difference was observed in the weight of the stamens between the mycorrhizal treatments. The results of the study show that mycorrhizal symbiosis can increase the number of pollinators visiting a plant's flowers. This is probably because pollinators prefer larger flowers. The results can help to better\nunderstand the role of mycorrhiza in plant-pollinator interactions.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Miia Hakanen (mihakane@jyu.fi) on 2025-03-24T10:12:46Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2025-03-24T10:12:46Z (GMT). No. of bitstreams: 0\n Previous issue date: 2025", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "37", "language": null, "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.language.iso", "value": "fin", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": null, "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "sienijuuri", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Sienijuuren vaikutus kasvin kukkien ominaisuuksiin ja p\u00f6lytt\u00e4j\u00e4houkuttelevuuteen", "language": null, "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-202503242826", "language": null, "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Bio- ja ymp\u00e4rist\u00f6tieteiden laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Biological and Environmental Science", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": null, "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": null, "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Ymp\u00e4rist\u00f6tiede", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Environmental science", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_bdcc", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.copyright", "value": "\u00a9 The Author(s)", "language": "fi", "element": "rights", "qualifier": "copyright", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": null, "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "masterThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.subject.yso", "value": "kasvit", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "mykorritsa", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "sienet", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "viljelykasvit", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "symbioosi", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "p\u00f6lytys", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "kukat (kasvit)", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.subject.yso", "value": "p\u00f6lytt\u00e4j\u00e4t", "language": null, "element": "subject", "qualifier": "yso", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}, {"key": "dc.description.accessibilityfeature", "value": "unknown accessibility", "language": "en", "element": "description", "qualifier": "accessibilityfeature", "schema": "dc"}, {"key": "dc.description.accessibilityfeature", "value": "ei tietoa saavutettavuudesta", "language": "fi", "element": "description", "qualifier": "accessibilityfeature", "schema": "dc"}]
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