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 | Acesso ao texto completo restrito à biblioteca da Embrapa Tabuleiros Costeiros. Para informações adicionais entre em contato com cpatc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia; Embrapa Tabuleiros Costeiros. |
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Data corrente: |
04/02/2013 |
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Data da última atualização: |
04/02/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SILVA, P. P. da; SOARES, L.; COSTA, J. G. da; VIANA, L. da S.; ANDRADE, J. C. F. de; GONÇALVES, E. R.; SANTOS, J. M. dos; BARBOSA, G. V. de S.; NASCIMENTO, V. X.; TODARO, A. R.; RIFFEL, A.; SA, M. F. G. de; BARBORSA, M. H. P.; SANTANA, A. E. G.; RAMALHO NETO, C. E. |
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Afiliação: |
JOAO GOMES DA COSTA, CPATC; ALESSANDRO RIFFEL, CPATC; MARIA FATIMA GROSSI DE SA, CENARGEN. |
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Título: |
Path analysis for selection of drought tolerant sugarcane genotypes through physiological components. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Industrial Crops and Products, v. 37, p. 11-19, 2012. |
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DOI: |
10.1016/j.indcrop.2011.11.015 |
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Idioma: |
Inglês |
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Conteúdo: |
Water deficit is among the main environmental factors limiting agricultural productivity of sugarcane in Northeast Brazil by affecting virtually every aspect of plant growth, with consequent reduction of the agro-industrial productivity of this crop. This study aimed to use path analysis to evaluate the physiological components of sugarcane under two water conditions, with photosynthesis as the basic variable, in order to obtain subsidies that can help the genetic breeding of this crop by selection of superior clones with drought tolerance. The experiment was carried out in a greenhouse with a completely randomized experimental design, 4 ×2 factorial arrangements (four sugarcane genotypes × two soil moisture regimes: control, with 80?100% available water and stressed, with 0?20% water available) and with four replications. Each plot consisted of one pot with 12 kg of substrate containing one plant. Treatments were maintained at a humidity close to field capacity with daily replacement of the evapotranspired water with a water supply for 66 days of cultivation for treatments under stress. Evaluations were conducted on the fourth day after severe water stress at 70 days of cultivation. Data from nine physiological variables were considered, with six of these being used in the model after exclusion of those that were contributing to multicollinearity. Variables used in path analysis were enough to explain the variation found in photosynthesis under both water conditions. Stomatal conductance, transpiration and the SPAD index should be considered as a priority in breeding programs for sugarcane aiming to get more productive and tolerant genotypes to water stress, and selection indexes should be used with due consideration of these variables to promote gains in photosynthesis. MenosWater deficit is among the main environmental factors limiting agricultural productivity of sugarcane in Northeast Brazil by affecting virtually every aspect of plant growth, with consequent reduction of the agro-industrial productivity of this crop. This study aimed to use path analysis to evaluate the physiological components of sugarcane under two water conditions, with photosynthesis as the basic variable, in order to obtain subsidies that can help the genetic breeding of this crop by selection of superior clones with drought tolerance. The experiment was carried out in a greenhouse with a completely randomized experimental design, 4 ×2 factorial arrangements (four sugarcane genotypes × two soil moisture regimes: control, with 80?100% available water and stressed, with 0?20% water available) and with four replications. Each plot consisted of one pot with 12 kg of substrate containing one plant. Treatments were maintained at a humidity close to field capacity with daily replacement of the evapotranspired water with a water supply for 66 days of cultivation for treatments under stress. Evaluations were conducted on the fourth day after severe water stress at 70 days of cultivation. Data from nine physiological variables were considered, with six of these being used in the model after exclusion of those that were contributing to multicollinearity. Variables used in path analysis were enough to explain the variation found in photosynthesis under both water conditions. Stomat... Mostrar Tudo |
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Palavras-Chave: |
Cana-de-açúcar. |
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Thesaurus Nal: |
Sugarcane. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02778naa a2200325 a 4500
001 1948275
005 2013-02-04
008 2012 bl uuuu u00u1 u #d
024 7 $a10.1016/j.indcrop.2011.11.015$2DOI
100 1 $aSILVA, P. P. da
245 $aPath analysis for selection of drought tolerant sugarcane genotypes through physiological components.$h[electronic resource]
260 $c2012
520 $aWater deficit is among the main environmental factors limiting agricultural productivity of sugarcane in Northeast Brazil by affecting virtually every aspect of plant growth, with consequent reduction of the agro-industrial productivity of this crop. This study aimed to use path analysis to evaluate the physiological components of sugarcane under two water conditions, with photosynthesis as the basic variable, in order to obtain subsidies that can help the genetic breeding of this crop by selection of superior clones with drought tolerance. The experiment was carried out in a greenhouse with a completely randomized experimental design, 4 ×2 factorial arrangements (four sugarcane genotypes × two soil moisture regimes: control, with 80?100% available water and stressed, with 0?20% water available) and with four replications. Each plot consisted of one pot with 12 kg of substrate containing one plant. Treatments were maintained at a humidity close to field capacity with daily replacement of the evapotranspired water with a water supply for 66 days of cultivation for treatments under stress. Evaluations were conducted on the fourth day after severe water stress at 70 days of cultivation. Data from nine physiological variables were considered, with six of these being used in the model after exclusion of those that were contributing to multicollinearity. Variables used in path analysis were enough to explain the variation found in photosynthesis under both water conditions. Stomatal conductance, transpiration and the SPAD index should be considered as a priority in breeding programs for sugarcane aiming to get more productive and tolerant genotypes to water stress, and selection indexes should be used with due consideration of these variables to promote gains in photosynthesis.
650 $aSugarcane
653 $aCana-de-açúcar
700 1 $aSOARES, L.
700 1 $aCOSTA, J. G. da
700 1 $aVIANA, L. da S.
700 1 $aANDRADE, J. C. F. de
700 1 $aGONÇALVES, E. R.
700 1 $aSANTOS, J. M. dos
700 1 $aBARBOSA, G. V. de S.
700 1 $aNASCIMENTO, V. X.
700 1 $aTODARO, A. R.
700 1 $aRIFFEL, A.
700 1 $aSA, M. F. G. de
700 1 $aBARBORSA, M. H. P.
700 1 $aSANTANA, A. E. G.
700 1 $aRAMALHO NETO, C. E.
773 $tIndustrial Crops and Products$gv. 37, p. 11-19, 2012.
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Registro original: |
Embrapa Tabuleiros Costeiros (CPATC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
10/11/2016 |
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Data da última atualização: |
14/04/2021 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
MELO, I. G.; FREITAS, A. de; TEIXEIRA, F. V.; FERRAZ, L. de C. L.; OLIVEIRA-PAIVA, C. A.; MARRIEL, I. E. |
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Afiliação: |
IZABELLE GONÇALVES MELO, UFSJ, Campus de Sete Lagoas, MG.; ADENILSON DE FREITAS, UFSJ, Campus de Sete lagoas, MG.; FELIPE VALADARES TEIXEIRA, UNIFEMM, Sete Lagoas, MG.; LEILA DE CASTRO LOUBACK FERRAZ, UFSJ, Campus de Sete Lagoas, MG.; CHRISTIANE ABREU DE OLIVEIRA PAIVA, CNPMS; IVANILDO EVODIO MARRIEL, CNPMS. |
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Título: |
Aumento de massa seca em plantas de milho adubadas com compostos orgânicos enriquecidos com rochas. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 32.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 16.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 14.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 11., 2016, Goiânia. Rumo aos novos desafios: [anais]. Viçosa, MG: Sociedade Brasileira de Ciência do Solo, 2016. |
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Páginas: |
p. 1043. |
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Idioma: |
Português |
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Notas: |
FertBio 2016. |
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Thesagro: |
Compostagem; Latossolo; Nutriente. |
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Thesaurus NAL: |
Composting. |
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Categoria do assunto: |
S Ciências Biológicas |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/149907/1/Aumento-massa.pdf
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Marc: |
LEADER 00964nam a2200229 a 4500
001 2056162
005 2021-04-14
008 2016 bl uuuu u00u1 u #d
100 1 $aMELO, I. G.
245 $aAumento de massa seca em plantas de milho adubadas com compostos orgânicos enriquecidos com rochas.$h[electronic resource]
260 $aIn: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 32.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 16.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 14.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 11., 2016, Goiânia. Rumo aos novos desafios: [anais]. Viçosa, MG: Sociedade Brasileira de Ciência do Solo$c2016
300 $ap. 1043.
500 $aFertBio 2016.
650 $aComposting
650 $aCompostagem
650 $aLatossolo
650 $aNutriente
700 1 $aFREITAS, A. de
700 1 $aTEIXEIRA, F. V.
700 1 $aFERRAZ, L. de C. L.
700 1 $aOLIVEIRA-PAIVA, C. A.
700 1 $aMARRIEL, I. E.
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Embrapa Milho e Sorgo (CNPMS) |
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