Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/197735
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dc.contributor.authorFAGERIA, N. K.
dc.contributor.authorMORAIS, O. P.
dc.contributor.authorBALIGAR, V. C.
dc.contributor.authorWRIGHT, R. J.
dc.date.accessioned2021-10-05T12:00:33Z-
dc.date.available2021-10-05T12:00:33Z-
dc.date.created1994-10-25
dc.date.issued1988
dc.identifier.citationFertilizer Research, v. 16, n. 3, p. 195-206, July 1988.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/197735-
dc.descriptionGenotypic differences in absorption or utilization of P might be exploited to improve efficiency of fertilizer use or to obtain higher productivity on P-deficient soils. The objective of this study was to evaluate responses by 75 genotypes of upland rice (Oryza sativa L.) to two soil P levels in two field experiments. In the first experiment, soil P levels (Mehlich 1) were 1.5 mg kg-1 and 5 mg kg-1, and in the second experiment, 3 mg kg-1 and 4.7 mg kg-1 of soil, respectively. Rice cultivars differed significantly in shoot dry matter production at flowering, grain yield, and plant P status. Based on a grain yield efficiency index, cultivars were classified as P-efficient or P-inefficient. Shoot dry matter was more sensitive to P-deficiency but was not related to grain yield. Phosphorus use efficiency was higher under the low P treatment. Phosphorus uptake was significantly correlated with dry matter, P concentration and P-efficiency ratio. Results of this study indicate that genetic differences in P-use efficiency exist among upland rice cultivars and may be exploited in breeding programs.
dc.language.isoeng
dc.rightsopenAccesseng
dc.subjectFertilizacao
dc.subjectGenotypic differences
dc.titleResponse of rice cultivars to phosphorus supply on an oxisol.
dc.typeArtigo de periódico
dc.subject.thesagroArroz
dc.subject.thesagroCerrado
dc.subject.thesagroFósforo
dc.subject.thesagroOryza Sativa
dc.subject.thesagroOxisol
dc.subject.thesagroSolo
dc.subject.nalthesaurusRice
dc.subject.nalthesaurusPhosphorus
dc.subject.nalthesaurusOxisols
riaa.ainfo.id197735
riaa.ainfo.lastupdate2021-10-05
dc.identifier.doihttps://doi.org/10.1007/BF01051370
dc.contributor.institutionNAND KUMAR FAGERIA, CNPAF; ORLANDO PEIXOTO DE MORAIS, CNPAF.
Aparece nas coleções:Artigo em periódico indexado (CNPAF)

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