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Registro Completo |
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
14/10/2008 |
Data da última atualização: |
19/02/2009 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
DUQUE, L.; SETTER, T.; CEBALLOS, H.; FREGENE, M.; ALVES, A. |
Afiliação: |
Luis Duque, Cornell University; Tim Setter, Cornell University; Hernan Ceballos, CIAT; Martin Fregene, CIAT; Alfredo Augusto Cunha Alves, CNPMF. |
Título: |
Evaluation of drought tolerance in contrasting cassava varieties genotypes under field controlled water stressed environment. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
In: SCIENTIFIC MEETING OF THE GLOBAL CASSAVA PARTNERSHIP, 1., 2008, Ghent. Cassava: meeting the challenges of the new millennium. Ghent:: IPBO, 2008. p. 143. |
Idioma: |
Inglês |
Notas: |
S10-7. |
Conteúdo: |
Due to its tolerance to drought and ability to survive uncertain rainfall patterns, cassava is considered a contributor to food security against famine. Our work aims to identify traits that contribute to drought tolerance in cassava and could be utilized for phenotyping in breeding programs. Faurty five cassava lines representing a range of drought tolerance were assessed for their drought tolerance response. Water stress experiments were conducted in field conditions at CIAT in Colombia. Parameters evaluated included non-structural carbohydrate partitioning and remobilization, abscisic acid accumulation, leaf retention, relative water content, leaf canopy temperature, and root growth, among others. Results demonstrated that genotypes differed in their response to water-stress and well-watered conditions. Water stress depleted leaf carbohydrate, consistent with priority carbon utilization rather than use as an osmotic adjustment. Timing of ABA accumulation differed among plant organs. In addition, leaf and stem ABA was negatively correlated with stem and leaf carbohydrate accumulations. Leaf retention was mild in WW treatments (60-80%) and severe in WS treatments (20-40%). All genotypes maintained high RWC (>90%) with litter or no variability in both WW and WS treatments. The diverse drought stress responses and parameters evaluated within genotypes suggest high genotypic variability and potential usage of specific phenotyping schemes. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02097naa a2200181 a 4500 001 1637951 005 2009-02-19 008 2008 bl uuuu u00u1 u #d 100 1 $aDUQUE, L. 245 $aEvaluation of drought tolerance in contrasting cassava varieties genotypes under field controlled water stressed environment. 260 $c2008 500 $aS10-7. 520 $aDue to its tolerance to drought and ability to survive uncertain rainfall patterns, cassava is considered a contributor to food security against famine. Our work aims to identify traits that contribute to drought tolerance in cassava and could be utilized for phenotyping in breeding programs. Faurty five cassava lines representing a range of drought tolerance were assessed for their drought tolerance response. Water stress experiments were conducted in field conditions at CIAT in Colombia. Parameters evaluated included non-structural carbohydrate partitioning and remobilization, abscisic acid accumulation, leaf retention, relative water content, leaf canopy temperature, and root growth, among others. Results demonstrated that genotypes differed in their response to water-stress and well-watered conditions. Water stress depleted leaf carbohydrate, consistent with priority carbon utilization rather than use as an osmotic adjustment. Timing of ABA accumulation differed among plant organs. In addition, leaf and stem ABA was negatively correlated with stem and leaf carbohydrate accumulations. Leaf retention was mild in WW treatments (60-80%) and severe in WS treatments (20-40%). All genotypes maintained high RWC (>90%) with litter or no variability in both WW and WS treatments. The diverse drought stress responses and parameters evaluated within genotypes suggest high genotypic variability and potential usage of specific phenotyping schemes. 700 1 $aSETTER, T. 700 1 $aCEBALLOS, H. 700 1 $aFREGENE, M. 700 1 $aALVES, A. 773 $tIn: SCIENTIFIC MEETING OF THE GLOBAL CASSAVA PARTNERSHIP, 1., 2008, Ghent. Cassava: meeting the challenges of the new millennium. Ghent:: IPBO, 2008. p. 143.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Registro Completo
Biblioteca(s): |
Embrapa Agroindústria Tropical; Embrapa Hortaliças. |
Data corrente: |
23/10/2018 |
Data da última atualização: |
29/01/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
GONDIM, R. S.; MUNIZ, C. R.; LIMA, C. E. P.; dos SANTOS, C. L. A. |
Afiliação: |
RUBENS SONSOL GONDIM, CNPAT; CELLI RODRIGUES MUNIZ, CNPAT; CARLOS EDUARDO PACHECO LIMA, CNPH; Carlos Levi Anastácio dos Santos, Universidade Federal do Ceará. |
Título: |
Explaining the water-holding capacity of biochar by scanning electron microscope images. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Revista Caatinga, Mossoró, v. 31, n. 4, p. 972-979, 2018. |
Idioma: |
Inglês |
Conteúdo: |
O objetivo deste estudo foi identificar biocarvão com melhor desempenho de promover o aumento da capacidade de retenção de água no solo, com base em evidências de laboratório e avaliação de porosidade microestructural. |
Palavras-Chave: |
Annacardium occidentale L; Biocarvão; Croton sonderianus Müll. |
Thesagro: |
Irrigação; Mudança Climática. |
Thesaurus NAL: |
Climate change; Irrigation; Mimosa tenuiflora. |
Categoria do assunto: |
-- X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/187624/1/ART18071.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/185864/1/Artigo-publicado1.pdf
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Marc: |
LEADER 00982naa a2200253 a 4500 001 2098830 005 2019-01-29 008 2018 bl uuuu u00u1 u #d 100 1 $aGONDIM, R. S. 245 $aExplaining the water-holding capacity of biochar by scanning electron microscope images.$h[electronic resource] 260 $c2018 520 $aO objetivo deste estudo foi identificar biocarvão com melhor desempenho de promover o aumento da capacidade de retenção de água no solo, com base em evidências de laboratório e avaliação de porosidade microestructural. 650 $aClimate change 650 $aIrrigation 650 $aMimosa tenuiflora 650 $aIrrigação 650 $aMudança Climática 653 $aAnnacardium occidentale L 653 $aBiocarvão 653 $aCroton sonderianus Müll 700 1 $aMUNIZ, C. R. 700 1 $aLIMA, C. E. P. 700 1 $ados SANTOS, C. L. A. 773 $tRevista Caatinga, Mossoró$gv. 31, n. 4, p. 972-979, 2018.
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Embrapa Agroindústria Tropical (CNPAT) |
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