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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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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: |
LEADER 02827naa a2200385 a 4500
001 2153603
005 2023-06-07
008 2023 bl uuuu u00u1 u #d
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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Embrapa Arroz e Feijão (CNPAF) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
28/01/2019 |
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Data da última atualização: |
28/01/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
ARAYA, A.; KISEKKA, I.; GIRMA, A.; HADGU, K. M.; TEGEBU, F. N.; KASSA, A. H.; FERREIRA-FILHO, H. R.; BELTRÃO, N. E.; AFEWERK, A.; ABADI, B.; TSEHAYE, Y.; MARTORANO, L. G.; ABRAHA, A. Z. |
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Afiliação: |
A. ARAYA, Mekelle University; I. KISEKKA, Kansas State University; A. GIRMA, Mekelle University; K. M. HADGU, World Agro-forestry; F. N. TEGEBU, Mekelle University; A. H. KASSA, Tigray Agricultural Research Institute, Mekelle Agricultural Research Center; H. R. FERREIRA-FILHO, UEPA; N. E. BELTRÃO, UEPA; A. AFEWERK, Mekelle University; B. ABADI, Aksum University; Y. TSEHAYE, Mekelle University; LUCIETA GUERREIRO MARTORANO, CPATU; A. Z. ABRAHA, Mekelle University. |
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Título: |
The challenges and opportunities for wheat production under future climate in Northern Ethiopia. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Journal of Agricultural Science, v. 155, n. 3, p. 379-393, Apr. 2017. |
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DOI: |
10.1017/S0021859616000460 |
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Idioma: |
Inglês |
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Conteúdo: |
Wheat is an important crop in the highlands of Northern Ethiopia and climate change is expected to be a major threat to wheat productivity. However, the potential impacts of climate change and adaptation on wheat yield has not been documented for this region. Wheat field experiments were carried out during the 2011?2013 cropping seasons in Northern Ethiopia to: (1) calibrate and evaluate Agricultural Production Systems sIMulator (APSIM)-wheat model for exploring the impacts of climate change and adaptation on wheat yield; (2) explore the response of wheat cultivar/s to possible change in climate and carbon dioxide (CO2) under optimal and sub-optimal fertilizer application and (3) assess the impact of climate change and adaptation practices on wheat yield based on integration of surveyed field data with climate simulations using multi-global climate models (GCMs; for short- and mid-term periods) for the Hintalo-Wajrat areas of Northern Ethiopia. The treatments were two levels of fertilizer (optimal and zero fertilization); treatments were replicated three times and arranged in a randomized complete block design. All required information for model calibration and evaluation were gathered from experimental studies. In addition, a household survey was conducted in 2012 in Northern Ethiopia. Following model calibration and performance testing, response of wheat to various nitrogen (N) fertilizer rates, planting date, temperature and combinations of other climate variables and CO2 were assessed. Crop simulations were conducted with future climate scenarios using 20 different GCMs and compared with a baseline. In addition, simulations were carried out using climate data from five different GCM with and without climate change adaptation practices. The simulated yield showed clear responses to changes in temperature, N fertilizer and CO2. Regardless of choice of cultivar, increasing temperatures alone (by up to 5 °C compared with the baseline) resulted in reduced yield while the addition of other factors (optimal fertilizer with elevated CO2) resulted in increased yield. Considering optimal fertilizer (64 kg/ha N) as an adaptation practice, wheat yield in the short-term (2010?2039) and mid-term (2040?2069) may increase at least by 40%, compared with sub-optimal N levels. Assuming CO2 and present wheat management is unchanged, simulation results based on 20 GCMs showed that median wheat yields will reduce by 10% in the short term and by 11% in the mid-term relative to the baseline data, whereas under changed CO2 with present management, wheat yield will increase slightly, by up to 8% in the short term and by up to 11% in the mid-term period, respectively. Wheat yield will substantially increase, by more than 100%, when simulated based on combined use of optimal planting date and fertilizer applications. Increased temperature in future scenarios will cause yield to decline, whereas CO2 is expected to have positive impacts on wheat yield. MenosWheat is an important crop in the highlands of Northern Ethiopia and climate change is expected to be a major threat to wheat productivity. However, the potential impacts of climate change and adaptation on wheat yield has not been documented for this region. Wheat field experiments were carried out during the 2011?2013 cropping seasons in Northern Ethiopia to: (1) calibrate and evaluate Agricultural Production Systems sIMulator (APSIM)-wheat model for exploring the impacts of climate change and adaptation on wheat yield; (2) explore the response of wheat cultivar/s to possible change in climate and carbon dioxide (CO2) under optimal and sub-optimal fertilizer application and (3) assess the impact of climate change and adaptation practices on wheat yield based on integration of surveyed field data with climate simulations using multi-global climate models (GCMs; for short- and mid-term periods) for the Hintalo-Wajrat areas of Northern Ethiopia. The treatments were two levels of fertilizer (optimal and zero fertilization); treatments were replicated three times and arranged in a randomized complete block design. All required information for model calibration and evaluation were gathered from experimental studies. In addition, a household survey was conducted in 2012 in Northern Ethiopia. Following model calibration and performance testing, response of wheat to various nitrogen (N) fertilizer rates, planting date, temperature and combinations of other climate variables and CO2... Mostrar Tudo |
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Thesagro: |
Clima; Mudança Climática; Produção; Produção de Alimentos; Trigo. |
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Thesaurus NAL: |
Ethiopia. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 03965naa a2200349 a 4500
001 2104859
005 2019-01-28
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1017/S0021859616000460$2DOI
100 1 $aARAYA, A.
245 $aThe challenges and opportunities for wheat production under future climate in Northern Ethiopia.$h[electronic resource]
260 $c2017
520 $aWheat is an important crop in the highlands of Northern Ethiopia and climate change is expected to be a major threat to wheat productivity. However, the potential impacts of climate change and adaptation on wheat yield has not been documented for this region. Wheat field experiments were carried out during the 2011?2013 cropping seasons in Northern Ethiopia to: (1) calibrate and evaluate Agricultural Production Systems sIMulator (APSIM)-wheat model for exploring the impacts of climate change and adaptation on wheat yield; (2) explore the response of wheat cultivar/s to possible change in climate and carbon dioxide (CO2) under optimal and sub-optimal fertilizer application and (3) assess the impact of climate change and adaptation practices on wheat yield based on integration of surveyed field data with climate simulations using multi-global climate models (GCMs; for short- and mid-term periods) for the Hintalo-Wajrat areas of Northern Ethiopia. The treatments were two levels of fertilizer (optimal and zero fertilization); treatments were replicated three times and arranged in a randomized complete block design. All required information for model calibration and evaluation were gathered from experimental studies. In addition, a household survey was conducted in 2012 in Northern Ethiopia. Following model calibration and performance testing, response of wheat to various nitrogen (N) fertilizer rates, planting date, temperature and combinations of other climate variables and CO2 were assessed. Crop simulations were conducted with future climate scenarios using 20 different GCMs and compared with a baseline. In addition, simulations were carried out using climate data from five different GCM with and without climate change adaptation practices. The simulated yield showed clear responses to changes in temperature, N fertilizer and CO2. Regardless of choice of cultivar, increasing temperatures alone (by up to 5 °C compared with the baseline) resulted in reduced yield while the addition of other factors (optimal fertilizer with elevated CO2) resulted in increased yield. Considering optimal fertilizer (64 kg/ha N) as an adaptation practice, wheat yield in the short-term (2010?2039) and mid-term (2040?2069) may increase at least by 40%, compared with sub-optimal N levels. Assuming CO2 and present wheat management is unchanged, simulation results based on 20 GCMs showed that median wheat yields will reduce by 10% in the short term and by 11% in the mid-term relative to the baseline data, whereas under changed CO2 with present management, wheat yield will increase slightly, by up to 8% in the short term and by up to 11% in the mid-term period, respectively. Wheat yield will substantially increase, by more than 100%, when simulated based on combined use of optimal planting date and fertilizer applications. Increased temperature in future scenarios will cause yield to decline, whereas CO2 is expected to have positive impacts on wheat yield.
650 $aEthiopia
650 $aClima
650 $aMudança Climática
650 $aProdução
650 $aProdução de Alimentos
650 $aTrigo
700 1 $aKISEKKA, I.
700 1 $aGIRMA, A.
700 1 $aHADGU, K. M.
700 1 $aTEGEBU, F. N.
700 1 $aKASSA, A. H.
700 1 $aFERREIRA-FILHO, H. R.
700 1 $aBELTRÃO, N. E.
700 1 $aAFEWERK, A.
700 1 $aABADI, B.
700 1 $aTSEHAYE, Y.
700 1 $aMARTORANO, L. G.
700 1 $aABRAHA, A. Z.
773 $tJournal of Agricultural Science$gv. 155, n. 3, p. 379-393, Apr. 2017.
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