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  @prefix event: <http://purl.org/NET/c4dm/event.owl#> .
  @prefix geo: <http://www.w3.org/2003/01/geo/wgs84_pos#> .
  @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
  @prefix dct: <http://purl.org/dc/terms/> .
  @prefix epid: <https://eprints.nwisrl.ars.usda.gov/id/> .
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  @prefix ep: <http://eprints.org/ontology/> .
  @prefix void: <http://rdfs.org/ns/void#> .
  @prefix skos: <http://www.w3.org/2004/02/skos/core#> .
  @prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
  @prefix bibo: <http://purl.org/ontology/bibo/> .
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	dc:format "text/html";
	dc:title "HTML Summary of #339 \n\nSymbiotic N2(C2H2) Fixation by Bean\n\n";
	foaf:primaryTopic <https://eprints.nwisrl.ars.usda.gov/id/eprint/339> .

<https://eprints.nwisrl.ars.usda.gov/id/eprint/339>
	bibo:abstract "The response of bean (Phaseolus vulgaris L.) to N fertilization\nunder field conditions indicates different Rhizobia-cultivar\nrelationships or symbiotic N?-fixation limitations\ndue to the cultivars. We have used the acetylene\nreduction method to determine the relative seasonal\nN?(C?H?) fixation of several field-grown bean cultivars.\nThe relative nitrogenase activity was estimated from 3-\nX 15-cm soil cores taken around the main root of a decapitated\nplant. Activities rapidly increased from the\nthree node vegetative (V3) to early pod-filling (R3-R4)\ngrowth stages, thereafter decreasing to zero at physiological\nmaturity (R9). Accumulated daily activity totals\nshowed a five- to sixfold difference in seasonal N?(C?H?)\nfixation between cultivars, which was significantly related\nto the average nodule weight and to the plant dry weight\nnear physiological maturity. However, cultivars\nsimilar plant dry weights had a two- to threefold difference\nin relative N?(C?H?) fixation. Seed yields and total-N\nupdates were also positively related. These observations\nindicate that it may be possible to increase both the\nsymbiotic N? fixation and seed yields through plant breeding."^^xsd:string;
	bibo:authorList <https://eprints.nwisrl.ars.usda.gov/id/eprint/339#authors>;
	bibo:status <http://purl.org/ontology/bibo/status/nonPeerReviewed>,
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	bibo:volume "18";
	dct:creator <https://eprints.nwisrl.ars.usda.gov/id/person/ext-0404af40f2211df737954666ea06c0f4>,
		<https://eprints.nwisrl.ars.usda.gov/id/person/ext-f74c493076ab3f9e1f4aa0ddd5652147>;
	dct:date "1978";
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	dct:subject <https://eprints.nwisrl.ars.usda.gov/id/subject/autoclass>,
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	dct:title "Symbiotic N2(C2H2) Fixation by Bean"^^xsd:string;
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		bibo:Article,
		ep:ArticleEPrint,
		ep:EPrint;
	rdfs:seeAlso <https://eprints.nwisrl.ars.usda.gov/id/eprint/339/> .

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	rdf:type skos:Concept;
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<https://eprints.nwisrl.ars.usda.gov/id/subject/irrbean>
	rdf:type skos:Concept;
	skos:prefLabel "Bean / dry bean"@en .

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	foaf:familyName "Westermann"^^xsd:string;
	foaf:givenName "D.T."^^xsd:string;
	foaf:name "D.T. Westermann"^^xsd:string;
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	foaf:familyName "Kolar"^^xsd:string;
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	foaf:name "Crop Science"^^xsd:string;
	rdf:type bibo:Collection .