Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
11/10/2007 |
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Data da última atualização: |
07/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FILIPPI, M. C.; PRABHU, A. S. |
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Afiliação: |
MARTA CRISTINA CORSI DE FILIPPI, CNPAF; ANNE SITARAMA PRABHU, CNPAF. |
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Título: |
Relationship between panicle blast severity and mineral nutrient content of plant tissue in upland rice. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
Journal of Plant Nutrition, v. 21, n. 8, p. 1577-1587, Nov. 1998. |
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DOI: |
https://doi.org/10.1080/01904169809365505 |
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Idioma: |
Inglês |
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Conteúdo: |
Panicle 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. |
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Palavras-Chave: |
Blast; Mineral nutrient. |
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Thesagro: |
Arroz; Brusone; Nutriente; Oryza Sativa; Pyricularia Grisea. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://www.alice.cnptia.embrapa.br/alice/bitstream/doc/215823/1/jpn-1998.pdf
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Marc: |
LEADER 01853naa a2200229 a 4500
001 1215823
005 2022-06-07
008 1998 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/01904169809365505$2DOI
100 1 $aFILIPPI, M. C.
245 $aRelationship between panicle blast severity and mineral nutrient content of plant tissue in upland rice.$h[electronic resource]
260 $c1998
520 $aPanicle 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.
650 $aArroz
650 $aBrusone
650 $aNutriente
650 $aOryza Sativa
650 $aPyricularia Grisea
653 $aBlast
653 $aMineral nutrient
700 1 $aPRABHU, A. S.
773 $tJournal of Plant Nutrition$gv. 21, n. 8, p. 1577-1587, Nov. 1998.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
