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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
09/11/2017 |
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Data da última atualização: |
09/11/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BUENO, A. C. S. O.; CASTRO, G. L. S.; SILVA JUNIOR, D. D.; PINHEIRO, H. A.; FILIPPI, M. C. C.; SILVA, G. B. |
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Afiliação: |
A. C. S. O. BUENO, UFRA; G. L. S. CASTRO, UFRA; D. D. SILVA JUNIOR, UNVERSIDADE FEDERAL DO AMAZONAS; H. A. PINHEIRO, UFRA; MARTA CRISTINA CORSI DE FILIPPI, CNPAF; GISELE BARATA DA SILVA, UFRA. |
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Título: |
Response of photosynthesis and chlorophyll a fluorescence in leaf scald-infected rice under influence of rhizobacteria and silicon fertilizer. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Plant Pathology, v. 66, n. 9, p. 1487-1495, Dec. 2017. |
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DOI: |
10.1111/ppa.12690 |
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Idioma: |
Inglês |
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Conteúdo: |
Leaf scald caused by Monographella albescens reduces the photosynthetic area, causing yield losses in rice. This study investigated the efficacy of the rhizobacteria Burkholderia pyrrocinia (BRM-32113) and Pseudomonas fluorescens (BRM-32111), combined with silicon (Si) fertilization, to reduce lesion size and the area under the disease progress curve (AUDPC), as well as to minimize the negative effects on gas exchange, chlorophyll a fluorescence, chlorophyll content and the activity of oxidative stress enzymes. The experiment used a completely randomized design with four replications and seven treatments. Compared with plants only fertilized with Si, plants fertilized with Si and treated with BRM-32113 showed reductions of 22% in scald lesion expansion and 37% in AUDPC, a 27% increase in the rate of CO2 assimilation (A), a 33% decrease in the internal CO2 concentration (Ci), and a 40% increase in ascorbate peroxidase activity. It was therefore concluded that the combination of BRM-32113 with Si fertilization reduces the severity of leaf scald, protecting the photosynthetic apparatus, thus representing a sustainable method of reducing the loss of income caused by leaf scald in rice. |
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Palavras-Chave: |
Gas-exchange. |
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Thesagro: |
Arroz; Clorofila; Oryza sativa; Pseudomonas Fluorescens; Rizosfera. |
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Thesaurus Nal: |
Burkholderia pyrrocinia; Chlorophyll; Monographella albescens; Rhizosphere bacteria; Rice; Scald diseases. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02220naa a2200337 a 4500
001 2079319
005 2017-11-09
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1111/ppa.12690$2DOI
100 1 $aBUENO, A. C. S. O.
245 $aResponse of photosynthesis and chlorophyll a fluorescence in leaf scald-infected rice under influence of rhizobacteria and silicon fertilizer.$h[electronic resource]
260 $c2017
520 $aLeaf scald caused by Monographella albescens reduces the photosynthetic area, causing yield losses in rice. This study investigated the efficacy of the rhizobacteria Burkholderia pyrrocinia (BRM-32113) and Pseudomonas fluorescens (BRM-32111), combined with silicon (Si) fertilization, to reduce lesion size and the area under the disease progress curve (AUDPC), as well as to minimize the negative effects on gas exchange, chlorophyll a fluorescence, chlorophyll content and the activity of oxidative stress enzymes. The experiment used a completely randomized design with four replications and seven treatments. Compared with plants only fertilized with Si, plants fertilized with Si and treated with BRM-32113 showed reductions of 22% in scald lesion expansion and 37% in AUDPC, a 27% increase in the rate of CO2 assimilation (A), a 33% decrease in the internal CO2 concentration (Ci), and a 40% increase in ascorbate peroxidase activity. It was therefore concluded that the combination of BRM-32113 with Si fertilization reduces the severity of leaf scald, protecting the photosynthetic apparatus, thus representing a sustainable method of reducing the loss of income caused by leaf scald in rice.
650 $aBurkholderia pyrrocinia
650 $aChlorophyll
650 $aMonographella albescens
650 $aRhizosphere bacteria
650 $aRice
650 $aScald diseases
650 $aArroz
650 $aClorofila
650 $aOryza sativa
650 $aPseudomonas Fluorescens
650 $aRizosfera
653 $aGas-exchange
700 1 $aCASTRO, G. L. S.
700 1 $aSILVA JUNIOR, D. D.
700 1 $aPINHEIRO, H. A.
700 1 $aFILIPPI, M. C. C.
700 1 $aSILVA, G. B.
773 $tPlant Pathology$gv. 66, n. 9, p. 1487-1495, Dec. 2017.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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