{"id":"https://openalex.org/W89449487","doi":"https://doi.org/10.31274/rtd-180813-3800","title":"Colonization of soil by two pythium species","display_name":"Colonization of soil by two pythium species","publication_year":1961,"publication_date":"1961-01-01","ids":{"openalex":"https://openalex.org/W89449487","doi":"https://doi.org/10.31274/rtd-180813-3800","mag":"89449487"},"language":"en","primary_location":{"id":"doi:10.31274/rtd-180813-3800","doi":"https://doi.org/10.31274/rtd-180813-3800","is_oa":false,"landing_page_url":"https://doi.org/10.31274/rtd-180813-3800","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Iowa State University, Digital Repository","raw_type":"dissertation"},"volume":null,"type":"dissertation","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/A5078758940","display_name":"Frank Richard Harper","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I173911158","display_name":"Iowa State University","ror":"https://ror.org/04rswrd78","country_code":"US","type":"education","lineage":["https://openalex.org/I173911158"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Frank Richard Harper","raw_affiliation_strings":["Iowa State University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Iowa State University","institution_ids":["https://openalex.org/I173911158"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5078758940"],"corresponding_institution_ids":["https://openalex.org/I173911158"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11771","display_name":"Plant Pathogens and Resistance","score":0.8295999765396118,"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/T11771","display_name":"Plant Pathogens and Resistance","score":0.8295999765396118,"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/T10076","display_name":"Plant-Microbe Interactions and Immunity","score":0.08820000290870667,"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/T12660","display_name":"Plant Disease Management Techniques","score":0.021400000900030136,"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/pythium","display_name":"Pythium","score":0.9850000143051147},{"id":"https://openalex.org/keywords/soil-colonization","display_name":"soil colonization","score":0.9559999704360962},{"id":"https://openalex.org/keywords/oomycete","display_name":"oomycete","score":0.800000011920929},{"id":"https://openalex.org/keywords/soil-fungi","display_name":"soil fungi","score":0.5979999899864197},{"id":"https://openalex.org/keywords/plant-pathogenic-fungi","display_name":"plant pathogenic fungi","score":0.5130000114440918},{"id":"https://openalex.org/keywords/soil-microorganisms","display_name":"soil microbes","score":0.414000004529953}],"concepts":[{"id":"https://openalex.org/C2780644372","wikidata":"https://www.wikidata.org/wiki/Q2699011","display_name":"Pythium","level":2,"score":0.8973821997642517},{"id":"https://openalex.org/C2776927270","wikidata":"https://www.wikidata.org/wiki/Q815962","display_name":"Colonization","level":2,"score":0.7308865785598755},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.40034979581832886},{"id":"https://openalex.org/C97137747","wikidata":"https://www.wikidata.org/wiki/Q38112","display_name":"Forestry","level":1,"score":0.3906646966934204},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.3841533362865448},{"id":"https://openalex.org/C54286561","wikidata":"https://www.wikidata.org/wiki/Q397350","display_name":"Agroforestry","level":1,"score":0.36259421706199646},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.3531458377838135},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.29559457302093506},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.2415769100189209}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.31274/rtd-180813-3800","doi":"https://doi.org/10.31274/rtd-180813-3800","is_oa":false,"landing_page_url":"https://doi.org/10.31274/rtd-180813-3800","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Iowa State University, Digital Repository","raw_type":"dissertation"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/15","score":0.7605999708175659,"display_name":"Life on land"},{"id":"https://metadata.un.org/sdg/2","score":0.6875,"display_name":"Zero hunger"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":11,"referenced_works":["https://openalex.org/W1565508535","https://openalex.org/W1571409449","https://openalex.org/W1577291158","https://openalex.org/W2004072673","https://openalex.org/W2053129640","https://openalex.org/W2062212042","https://openalex.org/W2072771132","https://openalex.org/W2080003597","https://openalex.org/W2091915834","https://openalex.org/W2150954834","https://openalex.org/W2320023964"],"related_works":["https://openalex.org/W2791695879","https://openalex.org/W3183368745","https://openalex.org/W215393076","https://openalex.org/W1541182140","https://openalex.org/W18709549","https://openalex.org/W430703728","https://openalex.org/W1553355422","https://openalex.org/W652364719","https://openalex.org/W2292682814","https://openalex.org/W6892211880"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-09-22T06:50:58.402377","created_date":"2016-06-24T00:00:00"}