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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
07/03/2014 |
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Data da última atualização: |
29/11/2018 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
LIMA, D. C. de; RODRIGUES, E. L. L.; JORGE, L. A. de C. |
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Afiliação: |
LUCIO ANDRE DE CASTRO JORGE, CNPDIA. |
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Título: |
Application of image processing techniques to automate the seed vigor assessment Process in Soybean Seedlings. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
In: WORKSHOP DE VISÃO COMPUTACIONAL - WVC, 9., 2013, Rio de Janeiro. Anais... Rio de Janeiro: FGV 2013. |
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Idioma: |
Inglês |
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Palavras-Chave: |
Evento; Limiarização; Mudas; Raiz primária; Segmentação. |
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Thesagro: |
Desbaste; Hipocótilo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00691nam a2200205 a 4500
001 1981812
005 2018-11-29
008 2013 bl uuuu u00u1 u #d
100 1 $aLIMA, D. C. de
245 $aApplication of image processing techniques to automate the seed vigor assessment Process in Soybean Seedlings.$h[electronic resource]
260 $aIn: WORKSHOP DE VISÃO COMPUTACIONAL - WVC, 9., 2013, Rio de Janeiro. Anais... Rio de Janeiro: FGV 2013.$c2013
650 $aDesbaste
650 $aHipocótilo
653 $aEvento
653 $aLimiarização
653 $aMudas
653 $aRaiz primária
653 $aSegmentação
700 1 $aRODRIGUES, E. L. L.
700 1 $aJORGE, L. A. de C.
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Embrapa Instrumentação (CNPDIA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
10/12/2021 |
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Data da última atualização: |
10/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
KÖLLN, O. T. K.; GAVA, G. J. de C.; CANTARELLA, H.; SILVA, S. R.; TRIVELIN, P. C. O. |
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Afiliação: |
ORIEL TIAGO KÖLLN, Universidade Estadual do Norte do Paraná; GLAUBER JOSÉ DE CASTRO GAVA, IAC; HEITOR CANTARELLA, IAC; SERGIO RICARDO SILVA, CNPF; PAULO CESAR OCHEUZE TRIVELIN, USP. |
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Título: |
Sugarcane yield loss due to water and nitrogen deficiencies evaluated by carbon isotopic discrimination method. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Emirates Journal of Food and Agriculture, v. 33, n. 9, p. 751-763, 2021. |
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DOI: |
10.9755/ejfa.2021.v33.i9.2756 |
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Idioma: |
Inglês |
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Conteúdo: |
Water and nitrogen (N) availability are determining factors for crop development and production. Assessments of sugarcane yield loss based on these factors may become more accurate by using the stable carbon (C) isotope technique. The aim of this work was to evaluate the effect of N and water on sugarcane yield, isolating the yield losses (YL) caused by N or by water limitations, and correlating them with the fractionation of C isotopes (Δ13C). The research was carried out in field conditions in the municipality of Jaú, Brazil. A statistical design in randomized block was used, considering the 2 × 2 × 2 factorial arrangement, composed of two cycles [first (2008/09) and second (2009/10)], two N rates (without and with N) and two water supplies (rainfed and irrigated). These variables were evaluated: biometric features (plant height, stalk diameter and tillering), yield elements [stalk yield (STY), sucrose yield (SUY), and stalk dry matter (SDM)], technological quality parameters [fiber content, sucrose juice content (SJC), and total sucrose recovery (TSR)], stalk N concentration (SNC) and accumulation (SNA), and Δ13C. The effect of irrigation associated with N fertilization on STY, SUY, and SDM, resulted in average increases of 53.7, 9.0, and 18.6 Mg ha-1, respectively. The average YL for STY in two crop seasons were 40.5%, 35.2%, and 48.2% due to limitations of N or water or N+water, respectively. The SNC was not affected by the water supply, but it was increased by N fertilization. The highest value of Δ13C was obtained for the treatment without N fertilization in rainfed conditions, and the least Δ13C was found for the one with N Fertilization and irrigation. The Δ13C measurement was effective in identifying N and water deficiencies, presenting potential to be used as an indicator of N and water limitations for sugarcane yield. MenosWater and nitrogen (N) availability are determining factors for crop development and production. Assessments of sugarcane yield loss based on these factors may become more accurate by using the stable carbon (C) isotope technique. The aim of this work was to evaluate the effect of N and water on sugarcane yield, isolating the yield losses (YL) caused by N or by water limitations, and correlating them with the fractionation of C isotopes (Δ13C). The research was carried out in field conditions in the municipality of Jaú, Brazil. A statistical design in randomized block was used, considering the 2 × 2 × 2 factorial arrangement, composed of two cycles [first (2008/09) and second (2009/10)], two N rates (without and with N) and two water supplies (rainfed and irrigated). These variables were evaluated: biometric features (plant height, stalk diameter and tillering), yield elements [stalk yield (STY), sucrose yield (SUY), and stalk dry matter (SDM)], technological quality parameters [fiber content, sucrose juice content (SJC), and total sucrose recovery (TSR)], stalk N concentration (SNC) and accumulation (SNA), and Δ13C. The effect of irrigation associated with N fertilization on STY, SUY, and SDM, resulted in average increases of 53.7, 9.0, and 18.6 Mg ha-1, respectively. The average YL for STY in two crop seasons were 40.5%, 35.2%, and 48.2% due to limitations of N or water or N+water, respectively. The SNC was not affected by the water supply, but it was increased b... Mostrar Tudo |
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Palavras-Chave: |
Deficit hídrico; Loss index of stalk biomass; Water-N interaction. |
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Thesagro: |
Cana de Açúcar. |
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Thesaurus NAL: |
Saccharum; Soil water deficit; Water supply. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02738naa a2200265 a 4500
001 2137561
005 2021-12-10
008 2021 bl uuuu u00u1 u #d
024 7 $a10.9755/ejfa.2021.v33.i9.2756$2DOI
100 1 $aKÖLLN, O. T. K.
245 $aSugarcane yield loss due to water and nitrogen deficiencies evaluated by carbon isotopic discrimination method.$h[electronic resource]
260 $c2021
520 $aWater and nitrogen (N) availability are determining factors for crop development and production. Assessments of sugarcane yield loss based on these factors may become more accurate by using the stable carbon (C) isotope technique. The aim of this work was to evaluate the effect of N and water on sugarcane yield, isolating the yield losses (YL) caused by N or by water limitations, and correlating them with the fractionation of C isotopes (Δ13C). The research was carried out in field conditions in the municipality of Jaú, Brazil. A statistical design in randomized block was used, considering the 2 × 2 × 2 factorial arrangement, composed of two cycles [first (2008/09) and second (2009/10)], two N rates (without and with N) and two water supplies (rainfed and irrigated). These variables were evaluated: biometric features (plant height, stalk diameter and tillering), yield elements [stalk yield (STY), sucrose yield (SUY), and stalk dry matter (SDM)], technological quality parameters [fiber content, sucrose juice content (SJC), and total sucrose recovery (TSR)], stalk N concentration (SNC) and accumulation (SNA), and Δ13C. The effect of irrigation associated with N fertilization on STY, SUY, and SDM, resulted in average increases of 53.7, 9.0, and 18.6 Mg ha-1, respectively. The average YL for STY in two crop seasons were 40.5%, 35.2%, and 48.2% due to limitations of N or water or N+water, respectively. The SNC was not affected by the water supply, but it was increased by N fertilization. The highest value of Δ13C was obtained for the treatment without N fertilization in rainfed conditions, and the least Δ13C was found for the one with N Fertilization and irrigation. The Δ13C measurement was effective in identifying N and water deficiencies, presenting potential to be used as an indicator of N and water limitations for sugarcane yield.
650 $aSaccharum
650 $aSoil water deficit
650 $aWater supply
650 $aCana de Açúcar
653 $aDeficit hídrico
653 $aLoss index of stalk biomass
653 $aWater-N interaction
700 1 $aGAVA, G. J. de C.
700 1 $aCANTARELLA, H.
700 1 $aSILVA, S. R.
700 1 $aTRIVELIN, P. C. O.
773 $tEmirates Journal of Food and Agriculture$gv. 33, n. 9, p. 751-763, 2021.
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