{"id":"https://openalex.org/W587724253","doi":"https://doi.org/10.1017/s0043174500034949","title":"Competition of Johnsongrass and Cocklebur with Six Soybean Varieties","display_name":"Competition of Johnsongrass and Cocklebur with Six Soybean Varieties","publication_year":1972,"publication_date":"1972-01-01","ids":{"openalex":"https://openalex.org/W587724253","doi":"https://doi.org/10.1017/s0043174500034949","mag":"587724253"},"language":"en","primary_location":{"id":"doi:10.1017/s0043174500034949","doi":"https://doi.org/10.1017/s0043174500034949","is_oa":false,"landing_page_url":"https://doi.org/10.1017/s0043174500034949","pdf_url":null,"source":{"id":"https://openalex.org/S78839210","display_name":"Weed Science","issn_l":"0043-1745","issn":["0043-1745","1550-2759"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-70","russia-white-list-1"],"host_organization":"https://openalex.org/P4310311721","host_organization_name":"Cambridge University Press","host_organization_lineage":["https://openalex.org/P4310311721","https://openalex.org/P4310311702"],"host_organization_lineage_names":["Cambridge University Press","University of Cambridge"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Weed Science","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5082525451","display_name":"Chester G. Mcwhorter","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1336096307","display_name":"United States Department of Agriculture","ror":"https://ror.org/01na82s61","country_code":"US","type":"government","lineage":["https://openalex.org/I1336096307"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"C. G. McWhorter","raw_affiliation_strings":["Plant Sci. Res. Div., Agr. Res. Serv., U. S. Dep. of Agr., Stoneville, Mississippi 38776"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Plant Sci. Res. Div., Agr. Res. Serv., U. S. Dep. of Agr., Stoneville, Mississippi 38776","institution_ids":["https://openalex.org/I1336096307"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5111817223","display_name":"Edgar E. Hartwig","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1336096307","display_name":"United States Department of Agriculture","ror":"https://ror.org/01na82s61","country_code":"US","type":"government","lineage":["https://openalex.org/I1336096307"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"E. E. Hartwig","raw_affiliation_strings":["Plant Sci. Res. Div., Agr. Res. Serv., U. S. Dep. of Agr., Stoneville, Mississippi 38776"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Plant Sci. Res. Div., Agr. Res. Serv., U. S. Dep. of Agr., Stoneville, Mississippi 38776","institution_ids":["https://openalex.org/I1336096307"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I1336096307"],"apc_list":{"value":3550,"currency":"USD","value_usd":3550},"apc_paid":null,"fwci":6.0429,"has_fulltext":false,"cited_by_count":131,"citation_normalized_percentile":{"value":0.9579024,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":87,"max":98},"biblio":{"volume":"20","issue":"1","first_page":"56","last_page":"59"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10774","display_name":"Weed Control and Herbicide Applications","score":0.9824000000953674,"subfield":{"id":"https://openalex.org/subfields/1110","display_name":"Plant Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},"topics":[{"id":"https://openalex.org/T10774","display_name":"Weed Control and Herbicide Applications","score":0.9824000000953674,"subfield":{"id":"https://openalex.org/subfields/1110","display_name":"Plant Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T12436","display_name":"Agronomic Practices and Intercropping Systems","score":0.006800000090152025,"subfield":{"id":"https://openalex.org/subfields/1102","display_name":"Agronomy and Crop Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T12058","display_name":"Allelopathy and phytotoxic interactions","score":0.005799999926239252,"subfield":{"id":"https://openalex.org/subfields/1110","display_name":"Plant Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/sorghum-halepense","display_name":"Sorghum halepense","score":0.9879999756813049},{"id":"https://openalex.org/keywords/xanthium-strumarium","display_name":"Xanthium strumarium","score":0.9860000014305115},{"id":"https://openalex.org/keywords/xanthium-pensylvanicum","display_name":"Xanthium pensylvanicum","score":0.9990000128746033},{"id":"https://openalex.org/keywords/soybean-cultivars","display_name":"soybean cultivars","score":0.8169999718666077},{"id":"https://openalex.org/keywords/weed-competition","display_name":"weed competition","score":0.7919999957084656},{"id":"https://openalex.org/keywords/yield-loss","display_name":"yield loss","score":0.8019999861717224},{"id":"https://openalex.org/keywords/manual-harvesting","display_name":"manual harvesting","score":0.4410000145435333},{"id":"https://openalex.org/keywords/mechanical-harvesting","display_name":"mechanical harvesting","score":0.9829999804496765},{"id":"https://openalex.org/keywords/weed-regrowth","display_name":"weed regrowth","score":0.7369999885559082},{"id":"https://openalex.org/keywords/soybean","display_name":"soybean","score":0.9549999833106995}],"concepts":[{"id":"https://openalex.org/C2776361265","wikidata":"https://www.wikidata.org/wiki/Q598601","display_name":"Xanthium","level":2,"score":0.7859393358230591},{"id":"https://openalex.org/C2778157034","wikidata":"https://www.wikidata.org/wiki/Q12111","display_name":"Sorghum","level":2,"score":0.6341360807418823},{"id":"https://openalex.org/C91306197","wikidata":"https://www.wikidata.org/wiki/Q45767","display_name":"Competition (biology)","level":2,"score":0.6021020412445068},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.5760278105735779},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.5440603494644165},{"id":"https://openalex.org/C2775891814","wikidata":"https://www.wikidata.org/wiki/Q101879","display_name":"Weed","level":2,"score":0.48088887333869934},{"id":"https://openalex.org/C134121241","wikidata":"https://www.wikidata.org/wiki/Q899301","display_name":"Yield (engineering)","level":2,"score":0.48027968406677246},{"id":"https://openalex.org/C144027150","wikidata":"https://www.wikidata.org/wiki/Q48803","display_name":"Horticulture","level":1,"score":0.30648285150527954},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.057445645332336426},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0},{"id":"https://openalex.org/C191897082","wikidata":"https://www.wikidata.org/wiki/Q11467","display_name":"Metallurgy","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1017/s0043174500034949","doi":"https://doi.org/10.1017/s0043174500034949","is_oa":false,"landing_page_url":"https://doi.org/10.1017/s0043174500034949","pdf_url":null,"source":{"id":"https://openalex.org/S78839210","display_name":"Weed Science","issn_l":"0043-1745","issn":["0043-1745","1550-2759"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-70","russia-white-list-1"],"host_organization":"https://openalex.org/P4310311721","host_organization_name":"Cambridge University Press","host_organization_lineage":["https://openalex.org/P4310311721","https://openalex.org/P4310311702"],"host_organization_lineage_names":["Cambridge University Press","University of Cambridge"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Weed Science","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Zero hunger","id":"https://metadata.un.org/sdg/2","score":0.991100013256073},{"display_name":"Life on land","id":"https://metadata.un.org/sdg/15","score":0.7605999708175659}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":11,"referenced_works":["https://openalex.org/W1977522908","https://openalex.org/W1984387180","https://openalex.org/W1993319493","https://openalex.org/W2009245795","https://openalex.org/W2020629498","https://openalex.org/W2029545077","https://openalex.org/W2040201836","https://openalex.org/W2051008819","https://openalex.org/W2078435081","https://openalex.org/W2797130784","https://openalex.org/W2947121093"],"related_works":["https://openalex.org/W2944852571","https://openalex.org/W1151123647","https://openalex.org/W2784177909","https://openalex.org/W2336179618","https://openalex.org/W2232354048","https://openalex.org/W2791232647","https://openalex.org/W2947141053","https://openalex.org/W1465234565","https://openalex.org/W2528183663","https://openalex.org/W292248118"],"abstract_inverted_index":{"Heavy":[0],"infestations":[1],"of":[2,9,63,68,76,88],"johnsongrass(Sorghum":[3],"halepense(L.)":[4],"Pers.)":[5],"reduced":[6,84],"the":[7,85,101],"yield":[8,104],"six":[10,89],"soybean(Glycine":[11],"max(L.)":[12],"Merr.)":[13],"varieties":[14,31,56,91],"23":[15],"to":[16,93,118],"42%":[17],"with":[18,59],"both":[19],"hand-harvesting":[20],"and":[21,29,71,79,112,114],"mechanical-harvesting":[22],"over":[23],"a":[24],"3-year":[25],"period.":[26],"\u2018Davis',":[27,70],"\u2018Lee\u2019,":[28,77],"\u2018Bragg\u2019":[30,48,115],"produced":[32,49],"significantly":[33,50],"higher":[34,51],"yields":[35,52,87],"than":[36,53,73],"did":[37],"\u2018Semmes',":[38],"\u2018Jackson\u2019,":[39,78],"or":[40],"\u2018Hardee\u2019":[41],"when":[42,57,95,110,122],"grown":[43,58],"in":[44,66,74],"weed-free":[45],"plots,":[46],"but":[47],"all":[54],"other":[55],"johnsongrass.":[60],"Less":[61],"regrowth":[62],"johnsongrass":[64],"occurred":[65],"plots":[67,75,96],"\u2018Bragg\u2019,":[69],"\u2018Semmes'":[72,99,113],"\u2018Hardee\u2019.":[80],"Common":[81],"cocklebur(Xanthium":[82],"pensylvanicumWallr.)":[83],"average":[86],"soybean":[90],"63":[92],"75%":[94],"were":[97],"hand-harvested.":[98],"showed":[100,116],"lowest":[102],"percentage":[103],"reduction":[105,120],"from":[106],"common":[107],"cocklebur":[108],"competition":[109],"hand-harvested,":[111],"53%":[117],"57%":[119],"respectively":[121],"machine":[123],"harvested.":[124]},"counts_by_year":[{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":3},{"year":2014,"cited_by_count":6},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-10-16T09:59:22.235173","created_date":"2016-06-24T00:00:00"}
