Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/215823
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dc.contributor.authorFILIPPI, M. C.
dc.contributor.authorPRABHU, A. S.
dc.date.accessioned2022-06-07T20:23:42Z-
dc.date.available2022-06-07T20:23:42Z-
dc.date.created2007-10-11
dc.date.issued1998
dc.identifier.citationJournal of Plant Nutrition, v. 21, n. 8, p. 1577-1587, Nov. 1998.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/215823-
dc.descriptionPanicle blast (Pyricularia grisea) in upland rice causes significant yield losses depending upon the environmental conditions and nutritional status of the plant at the grain-filling stage. Four field experiments were conducted to evaluate the influence of mineral nutrients on panicle blast of four upland rice genotypes on an oxisol. Panicle blast severities of four genotypes were related to nutrient concentrations in panicle tissues. Nitrogen (N), phosphorus (P), and magnesium (Mg) contents in tissue were significantly (P<0.01) and positively correlated, whereas potassium (K) and calcium (Ca) were negatively correlated with panicle blast severity. While the relationship between tissue N concentration and disease severity was quadratic, it was linear for K concentration. The correlation between tissue contents of N and P were positive and highly significant (r=0.75 P<0.001). Micronutrient tissue concentrations were not significantly correlated to panicle blast severities except for zinc (Zn). The low panicle blast severities of improved cultivar Guarani were associated with high K and Zn and low N, P, and Mg tissue concentrations.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectBlast
dc.subjectMineral nutrient
dc.titleRelationship between panicle blast severity and mineral nutrient content of plant tissue in upland rice.
dc.typeArtigo de periódico
dc.subject.thesagroArroz
dc.subject.thesagroBrusone
dc.subject.thesagroNutriente
dc.subject.thesagroOryza Sativa
dc.subject.thesagroPyricularia Grisea
riaa.ainfo.id215823
riaa.ainfo.lastupdate2022-06-07
dc.identifier.doihttps://doi.org/10.1080/01904169809365505
dc.contributor.institutionMARTA CRISTINA CORSI DE FILIPPI, CNPAF; ANNE SITARAMA PRABHU, CNPAF.
Appears in Collections:Artigo em periódico indexado (CNPAF)

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