{"id":"https://openalex.org/W2891542874","doi":"https://doi.org/10.21608/eajb.2018.11896","title":"Land Equivalent Ratio (LER), and Competition Indices in Cotton (Gossypium hirsutum) \u2013 Sesame (Sesamum indicum) Intercropping System","display_name":"Land Equivalent Ratio (LER), and Competition Indices in Cotton (Gossypium hirsutum) \u2013 Sesame (Sesamum indicum) Intercropping System","publication_year":2018,"publication_date":"2018-08-01","ids":{"openalex":"https://openalex.org/W2891542874","doi":"https://doi.org/10.21608/eajb.2018.11896","mag":"2891542874"},"language":"en","primary_location":{"id":"doi:10.21608/eajb.2018.11896","doi":"https://doi.org/10.21608/eajb.2018.11896","is_oa":true,"landing_page_url":"https://doi.org/10.21608/eajb.2018.11896","pdf_url":"https://eajbsa.journals.ekb.eg/article_11896_3da9c25b9ffb77ae119ea524d935f242.pdf","source":{"id":"https://openalex.org/S4210179817","display_name":"Egyptian Academic Journal of Biological Sciences","issn_l":"1687-8809","issn":["1687-8809","2090-0813"],"is_oa":true,"is_in_doaj":true,"is_core":false,"listed_in":["doaj"],"host_organization":"https://openalex.org/P4323237894","host_organization_name":"Egypts Presidential Specialized Council for Education and Scientific Research","host_organization_lineage":["https://openalex.org/P4323237894"],"host_organization_lineage_names":["Egypts Presidential Specialized Council for Education and Scientific Research"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Egyptian Academic Journal of Biological Sciences. A, Entomology","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://eajbsa.journals.ekb.eg/article_11896_3da9c25b9ffb77ae119ea524d935f242.pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5029249161","display_name":"Hamidreza Donyavian","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"H. Donyavian","raw_affiliation_strings":["Cotton Research institute of Iran. Gorgan. Shahidbeheshti"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Cotton Research institute of Iran. Gorgan. Shahidbeheshti","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5005149066","display_name":"Y. Raii","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I41832843","display_name":"University of Tabriz","ror":"https://ror.org/01papkj44","country_code":"IR","type":"education","lineage":["https://openalex.org/I41832843"]}],"countries":["IR"],"is_corresponding":false,"raw_author_name":"Y. Raii","raw_affiliation_strings":["University of Tabriz.  Department of Agronomy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Tabriz.  Department of Agronomy","institution_ids":["https://openalex.org/I41832843"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5029920323","display_name":"Mahmoud Jokar","orcid":"https://orcid.org/0000-0001-8146-6643","observed_orcids":["https://orcid.org/0000-0001-8146-6643"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"M. Jokar","raw_affiliation_strings":["Cotton Research institute of Iran. Gorgan. Shahidbeheshti"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Cotton Research institute of Iran. Gorgan. Shahidbeheshti","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":100,"currency":"USD","value_usd":100},"apc_paid":{"value":100,"currency":"USD","value_usd":100},"fwci":0.239,"has_fulltext":true,"cited_by_count":6,"citation_normalized_percentile":{"value":0.57971619,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":95},"biblio":{"volume":"11","issue":"2","first_page":"81","last_page":"88"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12436","display_name":"Agronomic Practices and Intercropping Systems","score":0.9994999766349792,"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"}},"topics":[{"id":"https://openalex.org/T12436","display_name":"Agronomic Practices and Intercropping Systems","score":0.9994999766349792,"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/T13009","display_name":"Agroforestry and silvopastoral systems","score":9.999999747378752e-05,"subfield":{"id":"https://openalex.org/subfields/1107","display_name":"Forestry"},"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":0.0,"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/cotton","display_name":"cotton","score":0.796999990940094},{"id":"https://openalex.org/keywords/sesame","display_name":"sesame","score":0.9990000128746033},{"id":"https://openalex.org/keywords/intercropping","display_name":"intercropping","score":0.8899999856948853},{"id":"https://openalex.org/keywords/land-equivalent-ratio","display_name":"land equivalent ratio","score":0.9760000109672546},{"id":"https://openalex.org/keywords/competition-index","display_name":"competition index","score":0.7850000262260437},{"id":"https://openalex.org/keywords/relative-crowding-coefficient","display_name":"relative crowding coefficient","score":0.9210000038146973},{"id":"https://openalex.org/keywords/aggression","display_name":"aggression","score":0.8159999847412109},{"id":"https://openalex.org/keywords/competitive-ratio","display_name":"competitive ratio","score":0.9679999947547913},{"id":"https://openalex.org/keywords/intercropping-patterns","display_name":"intercropping patterns","score":0.8410000205039978},{"id":"https://openalex.org/keywords/gossypium-hirsutum","display_name":"Gossypium hirsutum","score":0.9120000004768372}],"concepts":[{"id":"https://openalex.org/C2780928516","wikidata":"https://www.wikidata.org/wiki/Q47334","display_name":"Sesamum","level":2,"score":0.978873610496521},{"id":"https://openalex.org/C2781208722","wikidata":"https://www.wikidata.org/wiki/Q853859","display_name":"Intercropping","level":2,"score":0.9433621764183044},{"id":"https://openalex.org/C168741863","wikidata":"https://www.wikidata.org/wiki/Q777671","display_name":"Sowing","level":2,"score":0.6014742255210876},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5788585543632507},{"id":"https://openalex.org/C144938864","wikidata":"https://www.wikidata.org/wiki/Q4927286","display_name":"Randomized block design","level":2,"score":0.5714921951293945},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.45103180408477783},{"id":"https://openalex.org/C137580998","wikidata":"https://www.wikidata.org/wiki/Q235352","display_name":"Crop","level":2,"score":0.4413273334503174},{"id":"https://openalex.org/C202050865","wikidata":"https://www.wikidata.org/wiki/Q35852","display_name":"Hectare","level":3,"score":0.4216150641441345},{"id":"https://openalex.org/C118518473","wikidata":"https://www.wikidata.org/wiki/Q11451","display_name":"Agriculture","level":2,"score":0.3603000044822693},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.3009790778160095},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.05903998017311096}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.21608/eajb.2018.11896","doi":"https://doi.org/10.21608/eajb.2018.11896","is_oa":true,"landing_page_url":"https://doi.org/10.21608/eajb.2018.11896","pdf_url":"https://eajbsa.journals.ekb.eg/article_11896_3da9c25b9ffb77ae119ea524d935f242.pdf","source":{"id":"https://openalex.org/S4210179817","display_name":"Egyptian Academic Journal of Biological Sciences","issn_l":"1687-8809","issn":["1687-8809","2090-0813"],"is_oa":true,"is_in_doaj":true,"is_core":false,"listed_in":["doaj"],"host_organization":"https://openalex.org/P4323237894","host_organization_name":"Egypts Presidential Specialized Council for Education and Scientific Research","host_organization_lineage":["https://openalex.org/P4323237894"],"host_organization_lineage_names":["Egypts Presidential Specialized Council for Education and Scientific Research"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Egyptian Academic Journal of Biological Sciences. A, Entomology","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.21608/eajb.2018.11896","doi":"https://doi.org/10.21608/eajb.2018.11896","is_oa":true,"landing_page_url":"https://doi.org/10.21608/eajb.2018.11896","pdf_url":"https://eajbsa.journals.ekb.eg/article_11896_3da9c25b9ffb77ae119ea524d935f242.pdf","source":{"id":"https://openalex.org/S4210179817","display_name":"Egyptian Academic Journal of Biological Sciences","issn_l":"1687-8809","issn":["1687-8809","2090-0813"],"is_oa":true,"is_in_doaj":true,"is_core":false,"listed_in":["doaj"],"host_organization":"https://openalex.org/P4323237894","host_organization_name":"Egypts Presidential Specialized Council for Education and Scientific Research","host_organization_lineage":["https://openalex.org/P4323237894"],"host_organization_lineage_names":["Egypts Presidential Specialized Council for Education and Scientific Research"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Egyptian Academic Journal of Biological Sciences. A, Entomology","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.991100013256073,"display_name":"Zero hunger","id":"https://metadata.un.org/sdg/2"},{"score":0.4390000104904175,"display_name":"Life on land","id":"https://metadata.un.org/sdg/15"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2891542874.pdf","grobid_xml":"https://content.openalex.org/works/W2891542874.grobid-xml"},"referenced_works_count":8,"referenced_works":["https://openalex.org/W262942409","https://openalex.org/W1867145894","https://openalex.org/W1988518847","https://openalex.org/W2077454220","https://openalex.org/W2090135145","https://openalex.org/W2165327145","https://openalex.org/W2329679623","https://openalex.org/W4256056389"],"related_works":["https://openalex.org/W1536837943","https://openalex.org/W153604363","https://openalex.org/W4366599232","https://openalex.org/W4384301833","https://openalex.org/W57364849","https://openalex.org/W7218317059","https://openalex.org/W4411355956","https://openalex.org/W143710996","https://openalex.org/W4393126461","https://openalex.org/W4407630540"],"abstract_inverted_index":{"Cotton":[0,81],"(Gossypium":[1],"hirsutum)":[2],"and":[3,60,69,104,139,197],"sesame":[4,61,105,175],"(Sesamum":[5],"indicum)":[6],"are":[7,24],"two":[8],"major":[9],"crops":[10],"in":[11,80,172],"Islamic":[12],"Republic":[13],"of":[14,19,56,58,64,101,118,163],"IRAN.":[15],"In":[16,182],"the":[17,185],"northeast":[18],"IRAN,":[20],"most":[21],"farmers'":[22],"landholdings":[23],"less":[25],"than":[26,168],"5":[27],"hectares;":[28],"therefore":[29],"cotton":[30,59,102,164,171],"production":[31],"cost":[32],"is":[33,44],"high.":[34],"Agricultural":[35],"experts":[36],"suggest":[37],"that":[38],"one":[39],"method":[40,117],"for":[41,189],"improving":[42],"productivity":[43],"intercropping":[45,57,99,119,173,187],"system.":[46],"This":[47],"research":[48],"was":[49,74,86,120,200],"done":[50],"to":[51],"study":[52,184],"advantages":[53],"or":[54],"disadvantages":[55],"through":[62],"investigation":[63],"Land":[65,122,149,193],"Equivalent":[66,123,150,194],"Ratio":[67,124,133,151,160,195],"(LER)":[68,196],"competition":[70],"indices.":[71],"The":[72],"experiment":[73],"conducted":[75],"during":[76],"2015":[77],"growing":[78],"seasons":[79],"Research":[82],"Institute":[83],"(C.R.I.).":[84],"It":[85],"included":[87],"a":[88,177,191],"Randomized":[89],"Complete":[90],"Block":[91],"Design":[92],"(RCBD)":[93],"with":[94,174],"3":[95],"replications.":[96],"Treatments":[97],"were":[98,144,166],"patterns":[100],"(c)":[103],"(s)":[106],"(1c:1c,":[107],"1c:2s,":[108],"2c:1s,":[109],"3c:1s,":[110],"1c:3s,":[111],"sole":[112,114],"cotton,":[113],"sesame).":[115],"Substitution":[116],"done.":[121],"(LER),":[125,152],"Relative":[126,140,153],"Crowding":[127,154],"Coefficient":[128],"(k),":[129],"Aggressivity":[130,157],"(A),":[131,158],"Competitive":[132,159],"(CR),":[134],"Actual":[135],"Yield":[136],"Loss":[137],"(AYL),":[138],"Value":[141],"Total":[142],"(RVT)":[143],"evaluated.":[145],"Results":[146],"revealed":[147],"that,":[148],"coefficient":[155],"(K),":[156],"(CR)":[161],"values":[162],"generally":[165],"more":[167],"sesame.":[169],"Planting":[170],"had":[176],"higher":[178],"monetary":[179,198],"profitability":[180],"too.":[181],"this":[183],"best":[186],"pattern":[188],"acquiring":[190],"highest":[192],"profitable":[199],"(3:1).":[201]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":1},{"year":2020,"cited_by_count":1}],"updated_date":"2026-11-11T12:16:26.678958","created_date":"2018-09-27T00:00:00"}