{"id":{"repo_id":"mo-state","oai_identifier":"oai:bearworks.missouristate.edu:theses-1884"},"canonical_url":"https://search.dev.ndltd.org/etd/mo-state/oai:bearworks.missouristate.edu:theses-1884","repository":{"repo_id":"mo-state","name":"Missouri State University","base_url":"https://bearworks.missouristate.edu/do/oai/"},"display":{"title":"A Study of Growth of Several Plant Species as Influenced By the Plant Growth Regulator Ethephon","abstract":"Ethephon was applied to seeds, seedlings or cuttings by soaking or drenching the plant material for varying lengths of time in a range of dilutions of exogenous ethylene to determine its effects on growth. Species studied were Vitis Labrusca L., Carya Illinoinensis (Wangenh.) K.Koch, Kniphofia x praecox Bak. Tagetes erecta L., Tradescantia zebrina hort. ex Bosse and Adenium obesum (Forssk.) Roem& Schult. Of the species listed, Tradescantia had the most positive response in growth to ethephon treatments. Total plant dry weight of Tradescantia cuttings significantly increased with ethephon applications, along with increases in lateral shoot length. Trends of increasing plant fresh weight and was established with 24 hour seed soak treatments in Adenium, trends of increasing dry weight was established in Carya, and tendencies of increased dry weight above control treatments were observed in 2 hour cutting and root soaks in Vitis and Kniphofia respectively. Treatments of ethephon drenches on Tagetes and Kniphofia species proved to be too strong and/or too frequent. Maximum and minimum concentrations of ethephon for most of these species were observed and would be valuable for future research.","abstract_html":"Ethephon was applied to seeds, seedlings or cuttings by soaking or drenching the plant material for varying lengths of time in a range of dilutions of exogenous ethylene to determine its effects on growth. Species studied were Vitis Labrusca L., Carya Illinoinensis (Wangenh.) K.Koch, Kniphofia x praecox Bak. Tagetes erecta L., Tradescantia zebrina hort. ex Bosse and Adenium obesum (Forssk.) Roem& Schult. Of the species listed, Tradescantia had the most positive response in growth to ethephon treatments. Total plant dry weight of Tradescantia cuttings significantly increased with ethephon applications, along with increases in lateral shoot length. Trends of increasing plant fresh weight and was established with 24 hour seed soak treatments in Adenium, trends of increasing dry weight was established in Carya, and tendencies of increased dry weight above control treatments were observed in 2 hour cutting and root soaks in Vitis and Kniphofia respectively. Treatments of ethephon drenches on Tagetes and Kniphofia species proved to be too strong and/or too frequent. Maximum and minimum concentrations of ethephon for most of these species were observed and would be valuable for future research.","abstract_has_math":false,"creators":["Straus, Julie"],"institution":null,"degree_name":"Master of Natural and Applied Science in Biology","degree_level":"Masters","degree_discipline":"Biology","degree_department":null,"school":null,"contributors":["Pamela Borden"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2001,"date_issued":"2001-12-01T08:00:00Z","date_published":"2001-12-01T08:00:00Z","updated_at":"2026-07-24T03:15:54Z","subjects":["Biology"],"languages":[],"rights":["© Julie Straus"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://bearworks.missouristate.edu/theses/883","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Pamela Borden"]},{"key":"dc:creator","label":"Author","values":["Straus, Julie"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"thesis:degree_discipline","label":"Discipline","values":["Biology"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Natural and Applied Science in Biology"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Biology"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:rights","label":"Dc Rights","values":["© Julie Straus"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://bearworks.missouristate.edu/theses/883"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Ethephon was applied to seeds, seedlings or cuttings by soaking or drenching the plant material for varying lengths of time in a range of dilutions of exogenous ethylene to determine its effects on growth. Species studied were Vitis Labrusca L., Carya Illinoinensis (Wangenh.) K.Koch, Kniphofia x praecox Bak. Tagetes erecta L., Tradescantia zebrina hort. ex Bosse and Adenium obesum (Forssk.) Roem& Schult. Of the species listed, Tradescantia had the most positive response in growth to ethephon treatments. Total plant dry weight of Tradescantia cuttings significantly increased with ethephon applications, along with increases in lateral shoot length. Trends of increasing plant fresh weight and was established with 24 hour seed soak treatments in Adenium, trends of increasing dry weight was established in Carya, and tendencies of increased dry weight above control treatments were observed in 2 hour cutting and root soaks in Vitis and Kniphofia respectively. Treatments of ethephon drenches on Tagetes and Kniphofia species proved to be too strong and/or too frequent. Maximum and minimum concentrations of ethephon for most of these species were observed and would be valuable for future research."]},{"key":"dc:title","label":"Title","values":["A Study of Growth of Several Plant Species as Influenced By the Plant Growth Regulator Ethephon"]}]}],"canonical_facts":{"dc:contributor":["Pamela Borden"],"dc:creator":["Straus, Julie"],"dc:description.abstract":["Ethephon was applied to seeds, seedlings or cuttings by soaking or drenching the plant material for varying lengths of time in a range of dilutions of exogenous ethylene to determine its effects on growth. Species studied were Vitis Labrusca L., Carya Illinoinensis (Wangenh.) K.Koch, Kniphofia x praecox Bak. Tagetes erecta L., Tradescantia zebrina hort. ex Bosse and Adenium obesum (Forssk.) Roem& Schult. Of the species listed, Tradescantia had the most positive response in growth to ethephon treatments. Total plant dry weight of Tradescantia cuttings significantly increased with ethephon applications, along with increases in lateral shoot length. Trends of increasing plant fresh weight and was established with 24 hour seed soak treatments in Adenium, trends of increasing dry weight was established in Carya, and tendencies of increased dry weight above control treatments were observed in 2 hour cutting and root soaks in Vitis and Kniphofia respectively. Treatments of ethephon drenches on Tagetes and Kniphofia species proved to be too strong and/or too frequent. Maximum and minimum concentrations of ethephon for most of these species were observed and would be valuable for future research."],"dc:identifier":["https://bearworks.missouristate.edu/theses/883"],"dc:rights":["© Julie Straus"],"dc:subject":["Biology"],"dc:title":["A Study of Growth of Several Plant Species as Influenced By the Plant Growth Regulator Ethephon"],"thesis:degree_discipline":["Biology"],"thesis:degree_level":["Masters"],"thesis:degree_name":["Master of Natural and Applied Science in Biology"]},"updated_at":"2026-07-24T03:15:54Z"}