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| Registros recuperados: 91 | |
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| MAGALHAES, P. C.. |
| Source-sink relationhips is a controversial topic. Some workers assert that grain yield in corn is limited by availability of assimilate during the grain filling period. Others have reported the sink size as the limiting factor. In this research, I studied the effects of assimilate availabilibty on kernel growth rate and final weight by investigating the effects of altered source/sink ratios on soluble sugars, starch and nitrogen content in plant parts of maize. Special attention was given to plant's compensatory response such as soluble carbohydrates and nitrogen redistribution to the grain. Two genotypes: M14 x W64A and Pionner-brand '3780', were grown in field plots at St. Paul, Mn in 1982. The treatment were arranged in a split plot manner in a... |
| Tipo: Teses |
Palavras-chave: Assimilacao; Carboidratos; Maize; Grain.; Fisiologia; Grão; Nitrogênio; Milho; Zea Mays.; Carbohydrates; Physiology.; Nitrogen. |
| Ano: 1984 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/474162 |
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| OLIVEIRA, C. R. S. de; SILVA, F. B. da; FELINTO FILHO, E. F.; MENDONÇA JÚNIOR, A. F. de; ULISSES, C.; LEAO, P. C. de S.. |
| BRS Tainá is a new seedless table grape cultivar developed and recommended for the Submedium of São Francisco Valley, the main producing and exporting region of table grapes in Brazil. The objective of this study was to evaluate the influence of rootstock on vigor, bud fertility, sucrose and total soluble carbohydrates content in leaves of ?BRS Tainá? vine cultivated in semi-arid environmental conditions in the Brazilian Northeast. The treatments were represented by eight rootstocks: 101-14 MgT, IAC 313, ?AC 572, IAC 766, Paulsen 1103, Ramsey, SO4 and Teleki 5C. The experimental design was in randomized blocks with four replications, in split plots, the production cycles were considered as plots, and eight rootstocks as subplots. The following variables... |
| Tipo: Artigo de periódico |
Palavras-chave: BRS Taina; Uva de mesa; Vale do São Francisco; Fertilidade de gemas; Uva sem semente; Viticultura tropical; Uva; Porta Enxerto; Vitis Vinifera; Carboidrato; Seedless varieties; Carbohydrates; Grapes. |
| Ano: 2023 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1154243 |
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| DaMATTA, F. M.; GODOY, A. G.; MENEZES-SILVA, P. E.; MARTINS, S. C. V.; SANGLARD, L. M. V. P.; MORAIS, L. E.; TORRE-NETO, A.; GHINI, R.. |
| Abstract: Coffee (Coffea spp.), a globally traded commodity, is a slow-growing tropical tree species that displays an improved photosynthetic performance when grown under elevated atmospheric CO2 concentrations ([CO2]). To investigate the mechanisms underlying this response, two commercial coffee cultivars (Catuaí and Obatã) were grown using the first free-air CO2 enrichment (FACE) facility in Latin America. Measurements were conducted in two contrasting growth seasons, which were characterized by the high (February) and low (August) sink demand. Elevated [CO2] led to increases in net photosynthetic rates (A) in parallel with decreased photorespiration rates, with no photochemical limitations to A. The stimulation of A by elevated CO2 supply was more... |
| Tipo: Separatas |
Palavras-chave: Coffea arabica L; Photosynthetic limitations; Photosynthetic acclimation; Startch.; Café; Fotossíntese; Clima; Dióxido de carbono; Mudança Climática.; Photosynthesis; Climate change; Carbon dioxide; Face; Carbohydrates; Nitrogen; Starch.. |
| Ano: 2016 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1034947 |
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| PEDROSO, A. de F.; NUSSIO, L. G.; PAZIANI, S. de F.; LOURES, D. R. S.; IGARASI, M. S.; COELHO, R. M.; PACKER, I. H.; HORII, J.; GOMES, L. H.. |
| Sugar cane silages are characterized by extensive yeast activity, alcohol production and great dry matter - DM - losses. Better knowledge of the fermentation process is fundamental to the development of efficient ensilage techniques for this forage. This study evaluates temporal changes in chemical composition, DM losses and epiphytic microflora in sugar cane silage. Mature sugar cane, variety RB835486 (12 months of vegetative growth), was hand harvested, processed in a stationary chopper and ensiled in 20-L plastic buckets provided with valves for gas release and a device for effluent collection. Laboratory silos were kept at ambient temperature and sampled after ½, 1, 2, 3, 7, 15, 45, 90, 120 and 180 days. Ethanol concentration reached 6.4% in DM after... |
| Tipo: Artigo de periódico |
Palavras-chave: Water soluble; Losses; Bactéria; Carbohydrates; Ethanol; Yeasts. |
| Ano: 2005 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/47230 |
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| ANDRADE JÚNIOR, W. V. de; SANTOS FILHO, B. G. dos; OLIVEIRA NETO, C. F. de; CRUZ, E. D.; OKUMURA, R. S.; NASCIMENTO, V. R. do; MARTINS, J. T. da S.; MACHADO, L. C.; SOUSA, D. J. P. de; TEIXEIRA, J. S. S.. |
| This study aimed to assess the biochemical responses of Parkia gigantocarpa saplings to waterlogging. Waterlogging was imposed by flooding the saplings in 14 kg pots to approximately 5 cm above the soil surface. The experimental design was completely randomized and involved two water conditions (control and waterlogging) over five assessment periods (after 0, 4, 8, 12 and 16 days of waterlogging), with five replications per treatment. Starch, sucrose, total soluble carbohydrates and total soluble proteins were measured. The saplings exposed to waterlogging showed significant reductions in starch concentrations (62.50%) and total soluble proteins (40.98%), especially in the leaves. Waterlogging reduced the concentration of sucrose in leaves (44.38%) and... |
| Tipo: Artigo de periódico |
Palavras-chave: Parkia gigantocarpa Ducke; Amido; Sacarose; Carboidrato; Proteína; Muda.; Relação Água-Planta; Starch; Sucrose; Carbohydrates; Proteins. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1117209 |
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| ROWLAND, L.; COSTA, A. C. L. da; OLIVEIRA, R. S.; BITTENCOURT, P. R. L.; GILES, A. L.; COUGHLIN, I.; COSTA, P. de B.; BARTHOLOMEW, D.; DOMINGUES, T. F.; MIATTO, R. C.; FERREIRA, L. V.; VASCONCELOS, S. S.; S. JUNIOR, J. A.; OLIVEIRA, A. A. R.; MENCUCCINI, M.; MEIR, P.. |
| Whether tropical trees acclimate to long‐term drought stress remains unclear. This uncertainty is amplified if drought stress is accompanied by changes in other drivers such as the increases in canopy light exposure that might be induced by tree mortality or other disturbances. Photosynthetic capacity, leaf respiration, non‐structural carbohydrate (NSC) storage and stomatal conductance were measured on 162 trees at the world's longest running (15 years) tropical forest drought experiment. We test whether surviving trees have altered strategies for carbon storage and carbon use in the drier and elevated light conditions present following drought‐related tree mortality. Relative to control trees, the surviving trees experiencing... |
| Tipo: Artigo de periódico |
Palavras-chave: Seca; Respiração; Carboidrato; Floresta Tropical; Fotossíntese; Drought; Tropical forests; Light; Carbohydrates; Photosynthesis; Stomatal conductance. |
| Ano: 2021 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1126671 |
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| SOUZA, A. M. de; CAMPECHE, D. F. B.; MORAES, G.; MELO, F. V. S. T. de; CRUZ NETO, M. A. da; MELO, J. F. B.. |
| The effect on tambaqui fingerlings performance caused by diets containing two different carbohydrate sources was evaluated. Four isoproteic diets with different mango meal concentrations (0, 33, 66 and 100%) replacing cornmeal were tested. The feeding trial lasted 45 days and the feeding rate was 8% of total biomass. 240 tambaqui fingerlings with an initial weight average of 3.66g were distributed in 12 500-liter tanks in a recirculating water system with biofilter. Performance, feed intake, carcass yield, survival, total cholesterol, plasmatic free amino acids, hepatic aspartate aminotransferase(AST), hepatic glycogen and plasma glucose values were evaluated. The results showed that weight gain, daily weight gain, specific growth rate, apparent food... |
| Tipo: Artigo de periódico |
Palavras-chave: Nutrição de peixe; Perfil metabólico; Peixe; Nutrição Animal; Carboidrato; Tambaqui; Carbohydrates; Fish nutrition; Metabolic studies. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1097969 |
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| ZART, M.; SANTOS, H. P. dos; SOUZA, P. V. D. de; SOUZA, D. A.; DENARDI, D.. |
| The ground pearl, Eurhizococcus brasiliensis, is considered an important pest of vineyards in southern Brazil, with affected plants exhibiting leaf chlorosis, reduction in vigor, fading, and death. This study evaluated the quality of hardwood cuttings produced from plants infected (I) and not infected (NI) by ground pearl. "Paulsen 1103" (Vitis berlandieri × Vitis rupestris) plants were grown for 29 months in brick-built raised beds either infested or not infested by ground pearl; then, 12 one-year-old branches with a maximum of 12 buds each were cut from each plant, subdivided into three portions (4 buds cutting-1), and subjected to destructive and nondestructive testing. Destructive testing comprised determining fresh and dry weight, length, internode... |
| Tipo: Artigo de periódico |
Palavras-chave: Vitaacenae; Interação inseto-planta; Insect-plant interaction; Videira; Praga dos vinhedos; Sul do Brasil; Caboidrato; Insect; Plant.; Inseto; Doença de Planta; Praga de Planta.; Carbohydrates; Margarodidae.. |
| Ano: 2016 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1051934 |
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| MARTINS, V. de C.; GODOY, R. L. de O.; GOVÊA, A. C. M. S.; SANTIAGO, M. C. P. de A.; BORGUINI, R. G.; BRAGA, E. C. de O.; PACHECO, S.; NASCIMENTO, L. da S. de M. do. |
| Coffee is currently the second largest commodity on the world market today, and there is great concern about the quality of the beans exported from producer countries to Europe and USA. Practices such as using blends of different species and adding low-cost raw materials, such as chicory, corn, and soybean, impair the sensory and functional characteristics of the drink made from roasted and ground coffee beans. There is a need to adopt more efficient analytical methods than the microscopy technique currently used. The first chromatographic method used to determine fraud was reported in 1958. This method used paper chromatography to differentiate between coffee and chicory based on the free reducing sugars. As of the 1980s, different methods involving... |
| Tipo: Separatas |
Palavras-chave: Café; Grão; Carboidrato; Cromatografia; Método de Análise; Cromatografia Gasosa; Adulteração; Coffee (beverage); Carbohydrates; Volatile compounds; Coffee beans; Analytical methods; Ultra-performance liquid chromatography; Gas chromatography-mass spectrometry; Adulterated products. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1092721 |
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| ARAÚJO, C. de A.; PINTO, M. de S.; OLIVEIRA, G. F. de; RODRIGUES, J. M. da C. da S.; CUNHA, D. de S.; COSTA, C. de J. P.; MELO, D. A. de S.; MAGALHÃES, A. L. R.; ARAUJO, G. G. L. de; CAMPOS, F. S.; GOIS, G. C.. |
| This study evaluated the effects of different inclusion levels of cactus pear (Opuntia stricta) (at 0%, 15%, 30% or 45% on fresh matter basis) ensiled with shoots of cassava (Manihot esculenta)on the mineral nutrients, carbohydrates fractionation, nitrogen compounds and in vitro gas production, using a completely randomised design consisting of four treatments and five replicates per treatment, totalling 20 experimental units. There were significant increases (p <0.05) in the concentrations of Mg, B, Fe, total carbohydrates and fraction A+B1 (non-fibre carbohydrates)with increased cactus pear inclusion, whereas nitrogen and fractions B2 (available fibre) and C (insoluble protein, indigestible in rumen and intestine) significantly decreased (p < 0.05)... |
| Tipo: Artigo de periódico |
Palavras-chave: Conservação de forragem; Nutrientes minerais; DegradabilidadE; Palma Forrageira; Carboidrato; Manihot Esculenta; Nitrogênio; Fracionamento; Silagem; Carbohydrates; Forage; Forage legumes; Opuntia stricta; Cassava. |
| Ano: 2023 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1154599 |
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| DIAS, K. M.; RIBEIRO FILHO, H. M. N.; GAMA, M. A. S. da; PEREIRA, R. S.; ALVES, T. P.; PINHO, A. P. G.; DORIS, I.; BRANDALISE, M. M.; CARRARO, P. C.; BURGI, G.. |
| Tipo: Resumo em anais e proceedings |
Palavras-chave: Carbohydrates; Milk. |
| Ano: 2016 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1063044 |
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| MOURA, P. F.; GRIBNER, C.; RECH, K. S.; GATTO, L. J.; RIGONI, A. A. R.; BETIM, F. C. M.; WGNER, R.; DIAS, J. de F. G.; MIGUEL, O. G.; AUER, C. G.; MIGUEL, M. D.. |
| Resumo As pesquisas com fungos em busca de substâncias com potencial atividade biológica ganham cada vez mais destaque por serem fontes sustentáveis de novas moléculas. Diplodia pinea é um fungo fitopatogênico encontrado em espécies florestais, que tem apresentado poucos relatos de moléculas com atividade biológica e pode apresentar potencial biotecnológico promissor. Assim, o objetivo deste estudo foi detectar substâncias produzidas por esse fungo em meio líquido, sob condições de estresse. Um metabólito foi detectado na fração alcoólica e caracterizado por difração de raios-X como D-manitol. Esta é a primeira descrição deste monossacarídeo produzido por D. pinea. Abstract Research with fungi in search of substances with potential biological activity is... |
| Tipo: Artigo de periódico |
Palavras-chave: Difração de raios X; Metabólitos; Carboidrato; Biotecnologia; Fungo; Carbohydrates; Biotechnology; Fungi; Metabolites; X-ray diffraction. |
| Ano: 2021 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1132796 |
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| Registros recuperados: 91 | |
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