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| 20. |  | DEUS, K. E. de; PEREIRA, W. J.; MITSUZONO, S. T.; VIANELLO, R. P.; LANNA, A. C. Sistema de defesa antioxidativo de plantas de arroz de terras altas (Oryza sativa L.) cultivadas sob deficiência hídrica. In: SEMINÁRIO JOVENS TALENTOS, 7., 2013, Santo Antônio de Goiás. Coletânea dos resumos apresentados. Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2013. p. 93. (Embrapa Arroz e Feijão. Documentos, 292). Pôster - pós-graduação.| Biblioteca(s): Embrapa Arroz e Feijão. |
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| Registros recuperados : 195 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
09/05/2023 |
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Data da última atualização: |
07/06/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 4 |
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Autoria: |
COSTA, N. B.; FARIA, D. R.; MENDONÇA, S. M.; MORAES, M. G. de; COELHO, G. R. C.; FILIPPI, M. C. C. de; BHOSALE, R.; CASTRO, A. P. de; LANNA, A. C. |
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Afiliação: |
NIEDJA BEZERRA COSTA, UNIVERSIDADE FEDERAL DE GOIÁS; DENNER ROBERT FARIA, UNIVERSIDADE FEDERAL DE GOIÁS; SILAS MARTINS MENDONÇA, UNIVERSIDADE FEDERAL DE GOIÁS; MOEMY GOMES DE MORAES, UNIVERSIDADE FEDERAL DE GOIÁS; GESIMARIA RIBEIRO COSTA COELHO, CNPAF; MARTA CRISTINA CORSI DE FILIPPI, CNPAF; RAHUL BHOSALE, UNIVERSITY OF NOTTINGHAM; ADRIANO PEREIRA DE CASTRO, CNPAF; ANNA CRISTINA LANNA, CNPAF. |
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Título: |
Silicon and bioagents pretreatments synergistically improve upland rice performance during water stress. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Plant Stress, v. 7, 100142, Mar. 2023. |
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ISSN: |
2667-064X |
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DOI: |
https://doi.org/10.1016/j.stress.2023.100142 |
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Idioma: |
Inglês |
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Conteúdo: |
Rice (Oryza sativa L.) is one of the most important food crops worldwide. Upland rice growing areas are susceptible to adverse conditions and drought represents the main limiting factor for its production and yield stability. Soil management strategies (e.g., chemical and biological treatments) are often implemented to mitigate drought and improve crop production. However, morpho-physiological responses of upland rice to drought under such management strategies remains poorly understood. Here, we studied the effect of silicon and bioagents pretreatments under water stress on an upland rice landrace, Samambaia Branco. Our results unraveled that these pretreatments improved robustness of the root system in water stressed plants with increase in 40.9% of surface area, 11.5% on diameter, 53.8% on volume and 30.8% of length density when measured at 45 cm soil depth. Furthermore, these treatments increased number of thick roots by more than 14.0 and 45.0% at 25 and 45 cm soil depths, respectively; and fine root by more than 25.0% at 45 cm soil depth. Consequently, pretreated water stressed plants exhibited greater yield stability (reduction of 14.6% in grain yield compared to pretreated well-watered plants), root/shoot ratio (26.8%), photosynthesis (50.0%), stomatal conductance (14.4%), leaf water potential (61.0%) and water use efficiency (49.1%) than untreated water stressed plants. Thus, we conclude that silicon and bioagent pretreatments significantly improve root and shoot performance under water stress. Our results provide a first step towards understanding the relevance of these pretreatments in upland rice for improving adaptive root system as a response to suboptimal environmental conditions. MenosRice (Oryza sativa L.) is one of the most important food crops worldwide. Upland rice growing areas are susceptible to adverse conditions and drought represents the main limiting factor for its production and yield stability. Soil management strategies (e.g., chemical and biological treatments) are often implemented to mitigate drought and improve crop production. However, morpho-physiological responses of upland rice to drought under such management strategies remains poorly understood. Here, we studied the effect of silicon and bioagents pretreatments under water stress on an upland rice landrace, Samambaia Branco. Our results unraveled that these pretreatments improved robustness of the root system in water stressed plants with increase in 40.9% of surface area, 11.5% on diameter, 53.8% on volume and 30.8% of length density when measured at 45 cm soil depth. Furthermore, these treatments increased number of thick roots by more than 14.0 and 45.0% at 25 and 45 cm soil depths, respectively; and fine root by more than 25.0% at 45 cm soil depth. Consequently, pretreated water stressed plants exhibited greater yield stability (reduction of 14.6% in grain yield compared to pretreated well-watered plants), root/shoot ratio (26.8%), photosynthesis (50.0%), stomatal conductance (14.4%), leaf water potential (61.0%) and water use efficiency (49.1%) than untreated water stressed plants. Thus, we conclude that silicon and bioagent pretreatments significantly improve root and shoot pe... Mostrar Tudo |
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Palavras-Chave: |
Silicate fertilization. |
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Thesagro: |
Arroz; Deficiência Hídrica; Microrganismo; Oryza Sativa; Silício; Sinergismo; Sistema Radicular. |
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Thesaurus NAL: |
Beneficial microorganisms; Rice; Silicates; Soil water deficit. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1153603/1/plantstress-2023.pdf
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Marc: |
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022 $a2667-064X
024 7 $ahttps://doi.org/10.1016/j.stress.2023.100142$2DOI
100 1 $aCOSTA, N. B.
245 $aSilicon and bioagents pretreatments synergistically improve upland rice performance during water stress.$h[electronic resource]
260 $c2023
520 $aRice (Oryza sativa L.) is one of the most important food crops worldwide. Upland rice growing areas are susceptible to adverse conditions and drought represents the main limiting factor for its production and yield stability. Soil management strategies (e.g., chemical and biological treatments) are often implemented to mitigate drought and improve crop production. However, morpho-physiological responses of upland rice to drought under such management strategies remains poorly understood. Here, we studied the effect of silicon and bioagents pretreatments under water stress on an upland rice landrace, Samambaia Branco. Our results unraveled that these pretreatments improved robustness of the root system in water stressed plants with increase in 40.9% of surface area, 11.5% on diameter, 53.8% on volume and 30.8% of length density when measured at 45 cm soil depth. Furthermore, these treatments increased number of thick roots by more than 14.0 and 45.0% at 25 and 45 cm soil depths, respectively; and fine root by more than 25.0% at 45 cm soil depth. Consequently, pretreated water stressed plants exhibited greater yield stability (reduction of 14.6% in grain yield compared to pretreated well-watered plants), root/shoot ratio (26.8%), photosynthesis (50.0%), stomatal conductance (14.4%), leaf water potential (61.0%) and water use efficiency (49.1%) than untreated water stressed plants. Thus, we conclude that silicon and bioagent pretreatments significantly improve root and shoot performance under water stress. Our results provide a first step towards understanding the relevance of these pretreatments in upland rice for improving adaptive root system as a response to suboptimal environmental conditions.
650 $aBeneficial microorganisms
650 $aRice
650 $aSilicates
650 $aSoil water deficit
650 $aArroz
650 $aDeficiência Hídrica
650 $aMicrorganismo
650 $aOryza Sativa
650 $aSilício
650 $aSinergismo
650 $aSistema Radicular
653 $aSilicate fertilization
700 1 $aFARIA, D. R.
700 1 $aMENDONÇA, S. M.
700 1 $aMORAES, M. G. de
700 1 $aCOELHO, G. R. C.
700 1 $aFILIPPI, M. C. C. de
700 1 $aBHOSALE, R.
700 1 $aCASTRO, A. P. de
700 1 $aLANNA, A. C.
773 $tPlant Stress$gv. 7, 100142, Mar. 2023.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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