{"id":"https://openalex.org/W2024925469","doi":"https://doi.org/10.1007/bf00032301","title":"Calibration of the Minolta SPAD-502 leaf chlorophyll meter","display_name":"Calibration of the Minolta SPAD-502 leaf chlorophyll meter","publication_year":1995,"publication_date":"1995-01-01","ids":{"openalex":"https://openalex.org/W2024925469","doi":"https://doi.org/10.1007/bf00032301","mag":"2024925469","pmid":"https://pubmed.ncbi.nlm.nih.gov/24301641"},"language":"en","primary_location":{"id":"doi:10.1007/bf00032301","doi":"https://doi.org/10.1007/bf00032301","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf00032301","pdf_url":null,"source":{"id":"https://openalex.org/S88471346","display_name":"Photosynthesis Research","issn_l":"0166-8595","issn":["0166-8595","1573-5079"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-1"],"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Photosynthesis Research","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref","pubmed"],"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/A5003805941","display_name":"John P. Markwell","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I114395901","display_name":"University of Nebraska\u2013Lincoln","ror":"https://ror.org/043mer456","country_code":"US","type":"education","lineage":["https://openalex.org/I114395901"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"John Markwell","raw_affiliation_strings":["Department of Biochemistry, University of Nebraska, 68588-0664, Lincoln, NE, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Biochemistry, University of Nebraska, 68588-0664, Lincoln, NE, USA","institution_ids":["https://openalex.org/I114395901"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5105573290","display_name":"John C. Osterman","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I114395901","display_name":"University of Nebraska\u2013Lincoln","ror":"https://ror.org/043mer456","country_code":"US","type":"education","lineage":["https://openalex.org/I114395901"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"John C. Osterman","raw_affiliation_strings":["Department of School of Biological Sciences, University of Nebraska, 68588-0664, Lincoln, NE, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of School of Biological Sciences, University of Nebraska, 68588-0664, Lincoln, NE, USA","institution_ids":["https://openalex.org/I114395901"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5109254189","display_name":"Jennifer L. Mitchell","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I114395901","display_name":"University of Nebraska\u2013Lincoln","ror":"https://ror.org/043mer456","country_code":"US","type":"education","lineage":["https://openalex.org/I114395901"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Jennifer L. Mitchell","raw_affiliation_strings":["Department of Agronomy, University of Nebraska, 68588-0664, Lincoln, NE, USA","Department of Biochemistry, University of Nebraska, 68588-0664, Lincoln, NE, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Agronomy, University of Nebraska, 68588-0664, Lincoln, NE, USA","institution_ids":["https://openalex.org/I114395901"]},{"raw_affiliation_string":"Department of Biochemistry, University of Nebraska, 68588-0664, Lincoln, NE, USA","institution_ids":["https://openalex.org/I114395901"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I114395901"],"apc_list":{"value":3890,"currency":"USD","value_usd":3890},"apc_paid":null,"fwci":1.5123,"has_fulltext":false,"cited_by_count":974,"citation_normalized_percentile":{"value":0.83102193,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":99,"max":100},"biblio":{"volume":"46","issue":"3","first_page":"467","last_page":"472"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T14365","display_name":"Leaf Properties and Growth Measurement","score":0.9740999937057495,"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/T14365","display_name":"Leaf Properties and Growth Measurement","score":0.9740999937057495,"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/T10303","display_name":"Photosynthetic Processes and Mechanisms","score":0.011500000022351742,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10111","display_name":"Remote Sensing in Agriculture","score":0.00860000029206276,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/instrument-calibration","display_name":"instrument calibration","score":0.8220000267028809},{"id":"https://openalex.org/keywords/leaf-chlorophyll-content","display_name":"leaf chlorophyll content","score":0.9330000281333923},{"id":"https://openalex.org/keywords/soybean","display_name":"soybean","score":0.6690000295639038},{"id":"https://openalex.org/keywords/maize","display_name":"maize","score":0.9990000128746033},{"id":"https://openalex.org/keywords/photosynthesis","display_name":"photosynthesis","score":0.5860000252723694}],"concepts":[{"id":"https://openalex.org/C2776373379","wikidata":"https://www.wikidata.org/wiki/Q43177","display_name":"Chlorophyll","level":2,"score":0.7023763656616211},{"id":"https://openalex.org/C165838908","wikidata":"https://www.wikidata.org/wiki/Q736777","display_name":"Calibration","level":2,"score":0.5748197436332703},{"id":"https://openalex.org/C183688256","wikidata":"https://www.wikidata.org/wiki/Q11982","display_name":"Photosynthesis","level":2,"score":0.5573108196258545},{"id":"https://openalex.org/C2778902199","wikidata":"https://www.wikidata.org/wiki/Q133878","display_name":"Chlorophyll a","level":2,"score":0.5554029941558838},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5425633788108826},{"id":"https://openalex.org/C2993531722","wikidata":"https://www.wikidata.org/wiki/Q11575","display_name":"Zea mays","level":2,"score":0.5086256265640259},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.4251856207847595},{"id":"https://openalex.org/C59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","level":1,"score":0.3801749348640442},{"id":"https://openalex.org/C144027150","wikidata":"https://www.wikidata.org/wiki/Q48803","display_name":"Horticulture","level":1,"score":0.34309494495391846},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.2705666124820709},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.21878233551979065},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.169143944978714}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1007/bf00032301","doi":"https://doi.org/10.1007/bf00032301","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf00032301","pdf_url":null,"source":{"id":"https://openalex.org/S88471346","display_name":"Photosynthesis Research","issn_l":"0166-8595","issn":["0166-8595","1573-5079"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","jufo-1","ki-jl-1","medline","norway-1","poland-100","russia-white-list-1"],"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Photosynthesis Research","raw_type":"journal-article"},{"id":"pmid:24301641","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/24301641","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Photosynthesis research","raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Zero hunger","score":0.5,"id":"https://metadata.un.org/sdg/2"}],"sustainable_development_goals_aurora":[],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":25,"referenced_works":["https://openalex.org/W1517653322","https://openalex.org/W1520828019","https://openalex.org/W1532270673","https://openalex.org/W1909975038","https://openalex.org/W1964610684","https://openalex.org/W1969904913","https://openalex.org/W1974907033","https://openalex.org/W1978692093","https://openalex.org/W1991535781","https://openalex.org/W1995218242","https://openalex.org/W2023333852","https://openalex.org/W2041681224","https://openalex.org/W2047266328","https://openalex.org/W2047924113","https://openalex.org/W2073317899","https://openalex.org/W2087565123","https://openalex.org/W2125641052","https://openalex.org/W2161393806","https://openalex.org/W2161782565","https://openalex.org/W2175629130","https://openalex.org/W2323863431","https://openalex.org/W2334817176","https://openalex.org/W2528161389","https://openalex.org/W4255746510","https://openalex.org/W4285719527"],"related_works":["https://openalex.org/W1990673797","https://openalex.org/W2884149811","https://openalex.org/W2080576420","https://openalex.org/W1986726753","https://openalex.org/W2335740507","https://openalex.org/W2064136040","https://openalex.org/W2372987205","https://openalex.org/W2008742882","https://openalex.org/W2137665082","https://openalex.org/W1989719542"],"abstract_inverted_index":null,"counts_by_year":[{"year":2026,"cited_by_count":54},{"year":2025,"cited_by_count":45},{"year":2024,"cited_by_count":56},{"year":2023,"cited_by_count":54},{"year":2022,"cited_by_count":54},{"year":2021,"cited_by_count":43},{"year":2020,"cited_by_count":52},{"year":2019,"cited_by_count":77},{"year":2018,"cited_by_count":32},{"year":2017,"cited_by_count":53},{"year":2016,"cited_by_count":45},{"year":2015,"cited_by_count":56},{"year":2014,"cited_by_count":41},{"year":2013,"cited_by_count":38},{"year":2012,"cited_by_count":53}],"updated_date":"2026-10-21T09:56:26.102985","created_date":"2025-10-10T00:00:00"}