{"id":"https://openalex.org/W1978786568","doi":"https://doi.org/10.1080/00725560.1971.9648641","title":"Elevation of shoot\u2010apices of two ecotypes of Themeda triandra on the Transvaal Highveld","display_name":"Elevation of shoot\u2010apices of two ecotypes of Themeda triandra on the Transvaal Highveld","publication_year":1971,"publication_date":"1971-01-01","ids":{"openalex":"https://openalex.org/W1978786568","doi":"https://doi.org/10.1080/00725560.1971.9648641","mag":"1978786568"},"language":"en","primary_location":{"id":"doi:10.1080/00725560.1971.9648641","doi":"https://doi.org/10.1080/00725560.1971.9648641","is_oa":false,"landing_page_url":"https://doi.org/10.1080/00725560.1971.9648641","pdf_url":null,"source":{"id":"https://openalex.org/S4210220335","display_name":"Proceedings of the Annual Congresses of the Grassland Society of Southern Africa","issn_l":"0072-5560","issn":["0072-5560"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547","https://openalex.org/P4310320449"],"host_organization_lineage_names":["Taylor & Francis","Informa"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the Annual Congresses of the Grassland Society of Southern Africa","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/A5113604327","display_name":"Norman F.G. Rethman","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"N. F. G. Rethman","raw_affiliation_strings":["Nooitgedacht Research Station","Nooitgedacht Research Station , Ermelo"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Nooitgedacht Research Station","institution_ids":[]},{"raw_affiliation_string":"Nooitgedacht Research Station , Ermelo","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5113604327"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":13,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":"6","issue":"1","first_page":"86","last_page":"92"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13591","display_name":"Pasture and Agricultural Systems","score":0.9945999979972839,"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/T13591","display_name":"Pasture and Agricultural Systems","score":0.9945999979972839,"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/T12822","display_name":"Turfgrass Adaptation and Management","score":0.0010999999940395355,"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/T13628","display_name":"Agricultural Productivity and Crop Improvement","score":0.0010000000474974513,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/themeda-triandra","display_name":"Themeda triandra","score":0.968999981880188},{"id":"https://openalex.org/keywords/ecotypes","display_name":"ecotypes","score":0.8240000009536743},{"id":"https://openalex.org/keywords/defoliation","display_name":"defoliation","score":0.8579999804496765},{"id":"https://openalex.org/keywords/grazing-resistance","display_name":"grazing resistance","score":0.972000002861023},{"id":"https://openalex.org/keywords/seasonal-variation","display_name":"seasonal variation","score":0.5490000247955322},{"id":"https://openalex.org/keywords/grassland-management","display_name":"grassland management","score":0.45100000500679016}],"concepts":[{"id":"https://openalex.org/C10860467","wikidata":"https://www.wikidata.org/wiki/Q296519","display_name":"Ecotype","level":2,"score":0.9749438166618347},{"id":"https://openalex.org/C21410773","wikidata":"https://www.wikidata.org/wiki/Q220869","display_name":"Shoot","level":2,"score":0.7632309198379517},{"id":"https://openalex.org/C2777904157","wikidata":"https://www.wikidata.org/wiki/Q3239189","display_name":"Grazing","level":2,"score":0.6559905409812927},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.5761358737945557},{"id":"https://openalex.org/C57473165","wikidata":"https://www.wikidata.org/wiki/Q7315604","display_name":"Resistance (ecology)","level":2,"score":0.49906444549560547},{"id":"https://openalex.org/C59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","level":1,"score":0.4663761258125305},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.3920424282550812},{"id":"https://openalex.org/C144027150","wikidata":"https://www.wikidata.org/wiki/Q48803","display_name":"Horticulture","level":1,"score":0.3562766909599304}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1080/00725560.1971.9648641","doi":"https://doi.org/10.1080/00725560.1971.9648641","is_oa":false,"landing_page_url":"https://doi.org/10.1080/00725560.1971.9648641","pdf_url":null,"source":{"id":"https://openalex.org/S4210220335","display_name":"Proceedings of the Annual Congresses of the Grassland Society of Southern Africa","issn_l":"0072-5560","issn":["0072-5560"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547","https://openalex.org/P4310320449"],"host_organization_lineage_names":["Taylor & Francis","Informa"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the Annual Congresses of the Grassland Society of Southern Africa","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/2","score":0.6875,"display_name":"Zero hunger"},{"id":"https://metadata.un.org/sdg/15","score":0.4390000104904175,"display_name":"Life on land"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":4,"referenced_works":["https://openalex.org/W1966534027","https://openalex.org/W2016906046","https://openalex.org/W2514803836","https://openalex.org/W2744581409"],"related_works":["https://openalex.org/W2016906046","https://openalex.org/W2492812307","https://openalex.org/W2994692639","https://openalex.org/W2288298499","https://openalex.org/W2006734026","https://openalex.org/W2018171919","https://openalex.org/W2074860315","https://openalex.org/W2072460258","https://openalex.org/W2075495996","https://openalex.org/W2108082641"],"abstract_inverted_index":{"In":[0],"a":[1],"series":[2],"of":[3,19,22,25,37,42,67],"investigations":[4],"from":[5,71],"1965":[6],"to":[7,45,57],"1970":[8],"on":[9],"the":[10,40,43,48,50,52,54],"Transvaal":[11],"Highveld":[12],"it":[13],"was":[14,28,63,73],"found":[15],"that":[16,64],"trie":[17],"elevation":[18],"shoot":[20],"apices":[21],"two":[23],"ecotypes":[24,44],"Themeda":[26],"triandra":[27],"affected":[29],"by":[30],"season,":[31],"ecotype":[32],"and":[33],"treatment.":[34],"The":[35,59],"absence":[36],"defoliation":[38,51],"increased":[39],"susceptibility":[41],"defoliation,":[46],"whereas":[47],"shorter":[49],"greater":[53],"subsequent":[55],"resistance":[56],"grazing.":[58],"most":[60],"important":[61],"finding":[62],"general":[65],"application":[66],"earlier":[68],"research":[69],"findings":[70],"Natal":[72],"not":[74],"possible":[75],"in":[76],"this":[77],"case.":[78]},"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-11-10T11:39:43.021295","created_date":"2016-06-24T00:00:00"}
