Consulta: subjectFacets:"Biomass production"
Registros recuperados: 32
Data/hora: 01/06/2024 01:27:16

Evaluación del efecto de diferentes diluciones de agua de coco suplementada con biotina, para la producción de levadura (Saccharomyces cerevisiae) a nivel matraz y en biorreactor de tanque agitado.
Provedor de dados: 32
Autores: Pérez Ramírez, Jacqueline.
En esta investigación, se evaluó el efecto de las diluciones del agua de coco y la adición de biotina sobre el crecimiento de Saccharomyces cerevisiae. En este sentido, la dilución 1:1 adicionada con biotina (µ= 0.21 h-1) y biomasa (3.32 g/L) fue suficiente para dar los requerimientos nutricionales a la cepa estudiada, en comparación con el agua de coco 100% (µ= 0.13 h-1) y biomasa (3.28 g/L) y un medio cultivo sintético (µ= 0.12 h-1) con biomasa de 2.86 g/L. Los nutrientes disponibles en diluciones 1:2 (µ= 0.18 h-1) y biomasa (2.25 g/L), podrían ser considerables para estudios posteriores; no así, las diluciones 1:5 y 1:10 que parecen inadecuadas para el óptimo crecimiento de S. cerevisiae. Se observó el efecto positivo de la biotina sobre el crecimiento...
Palavras-chave: Cepa; Medio de cultivo; Biomasa; Strain; Culture medium; Biomass production; Maestría Tecnológica; Agroindustria.
Ano: 2011
URL: http://hdl.handle.net/10521/643

Fisiología y manejo de la higuera (Ficus carica L.) en producción forzada bajo cubierta plástica.
Provedor de dados: 32
Autores: Mendoza Castillo, Víctor Manuel.
En México la producción de frutas para el consumo nacional se restringe a temporadas de cosecha reducidas, por lo que el espacio de mercado incrementa la posibilidad de importar grandes volúmenes de frutos de diferentes especies, incluyendo al higo, planta con excelente capacidad de adaptación en la República Mexicana cultivada en huertos familiares en todas sus regiones. Para proponer al higo como un sistema de producción intensiva, se documentaron las respuestas fisiológicas a nivel de planta completa en sistemas intensivos de producción bajo cubiertas plásticas. El objetivo general fue generar tecnologías para el manejo y producción intensiva del cultivo del higo y conocer su efecto en la fisiología de la planta. Los objetivos particulares fueron:...
Palavras-chave: Higo; Cubierta plástica; Producción intensiva; Producción de biomasa; Relación fuente-demanda; Fig; Plastic cover; Intensive production; Biomass production; Source-demand relationship; Fisiología Vegetal; Doctorado.
Ano: 2013
URL: http://hdl.handle.net/10521/1993

Producción de biomasa y valor nutritivo del pasto Cuba CT-115 (Pennisetum purpureum) en un suelo cambisol.
Provedor de dados: 32
Autores: Dios León, Gloria Esperanza de.
Con el objetivo de conocer la producción de biomasa y el valor nutritivo en un suelo cambisol del pasto Cuba CT-115 (Pennisetum purpureum), se estableció un experimento en el Campo Experimental del Colegio de Postgraduados, Campus Tabasco en Cárdenas, Tabasco. Las variables a estudiar fueron agronómicas y de valor nutritivo. La evaluación comprendió el periodo de 1 año para estudiar las tres épocas climáticas (Secas, lluvias y nortes). Se usó un diseño bloques al azar (4 repeticiones); los datos se analizaron bajo un arreglo de parcelas divididas con 5 tratamientos (días de rebrote del pasto) los cuales fueron T1 (30 d), T2 (45 d), T3 (60 d), T4 (74 d) y T5 (90 d) como parcelas chicas y como parcelas grandes fueron las 3 épocas del año, para el análisis...
Palavras-chave: Producción de biomasa; Valor nutritivo; Pennisetum purpureum; Cuba CT-115; Producción Agroalimentaria en el Trópico; Maestría; Biomass production; Nutritional value.
Ano: 2012
URL: http://hdl.handle.net/10521/1770

Caracterización del sistema enzimatico de los hongos comestibles (Pleurotus) como una estrategia de selección de cepas para la producción rural
Provedor de dados: 32
Autores: Lima Peralta, Rosa María de.
En el presente trabajo se investigo la producción extracelular de celulasas en medio líquido con 12 cepas nativas mexicanas y una comercial de Pleurotus. También se determino el contenido de proteína en los extractos y el peso seco de las colonias. Y se determino el coeficiente de correlación entre las variables producción de celulasa y proteína. Se encontró que el mejor medio de cultivo líquido para la producción de celulasas fue el sugerido por Elisashvili et al (2008a), con algunas modificaciones. Todas las cepas de Pleurotus crecieron sobre el medio de cultivo líquido con celulosa (Solka Floc) como fuente de carbono debido a que pudo producir enzimas celulolíticas para degradar el substrato. Los resultados muestran que la actividad enzimática se...
Tipo: Tesis
Palavras-chave: Especies de Pleurotus; Fermentación líquida; Actividad enzimática; Producción de proteína; Producción de biomasa; Maestría; EDAR; Estrategias para el Desarrollo Agrícola Regional; Pleurotus species; Liquid fermentation; Enzyme activity; Protein production; Biomass production.
Ano: 2009
URL: http://hdl.handle.net/10521/1556

Cultivation of Trichosporon mycotoxinivorans in sugarcane bagasse hemicellulosic hydrolyzate
Provedor de dados: 69
Autores: Matos,Ítalo Thiago Silveira Rocha; Cassa-Barbosa,Luciana Araújo; Neto,Pedro Queiroz Costa; Filho,Spartaco Astolfi.
Background: The yeast strain IB09 was isolated from the gut of Calosoma sp. (Carabidae, Coleoptera, Insecta) that were collected in the central Amazon rainforest. First, tolerance of the strain to ethanol and heat was tested. Then, IB09 was cultivated in a medium using sugarcane bagasse hemicellulosic hydrolyzate as a carbon source, and cell growth (OD600), specific growth rate (µMAX, h-1), biomass yield (Y B, g.g-1) and relative sugar consumption (RSC, %) were evaluated. Taxonomic identification was determined by sequencing the ITS1 region of IB09 and comparing it to sequences obtained from the GenBank database (NCBI). Results: IB09 showed both ethanol tolerance and thermotolerance. Relative sugar consumption indicated that IB09 was able to perform...
Tipo: Journal article
Palavras-chave: Amazon strain; Biomass production; Biotechnological potential; Saccharification.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582012000100002

Desempenho produtivo de híbridos de sorgo para pastejo manejados sob duas alturas.
Provedor de dados: 14
Autores: POMPEU, R. C. F. F.; MARANHÃO, T. D.; COUTINHO, D. N.; CÂNDIDO, M. J. D.; VASCONCELOS, E. C. G.; LOPES, M. N.; NASCIMENTO, B. B. do; GUEDES, F. L.; RODRIGUES, J. A. S.
Avalia os componentes da biomassa de dois híbridos de sorgo para pastejo submetidos a duas frequências de pastejo (60 cm e 80 cm de altura) por ovinos.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Produção de biomassa; Manejo de pastagem; Semiárido; Brasil; Forragem; Gramínea Forrageira; Sorgo Forrageiro; Forrageira Tropical; Ovino; Sheep feeding; Forage grasses; Biomass production; Pasture management; Brazil; Semiarid zones.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1117076

Caracterização e seleção de genótipos de Megathyrsus maximus de porte baixo com potencial de uso na região semiárida brasileira.
Provedor de dados: 14
Autores: BUENO, L. G.; ALVES, M. M. de A.; ROCHA, J. E. da S.; CAVALCANTE, A. C. R.; GALVANI, D. B.; DINIZ, F. M.; VALLE, C. B. do; CÂNDIDO, M. J. D.
Resumo: Este trabalho foi conduzido com o objetivo de selecionar genótipos de Panicum maximum (sin. Megathyrsus maximus) de porte baixo com potencial de adaptação e uso no Semiárido brasileiro. Foram avaliados 24 genótipos, distribuídos em delineamento experimental de blocos completos casualizados com três repetições quanto à produção de biomassa, densidade populacional de perfilhos e altura de plantas. A altura do dossel no período chuvoso variou entre 29,62 cm e 99,78 cm, sendo possível classificar 9 genótipos como sendo de porte baixo para as condições ambientais e experimentais avaliadas na região (até 50 cm de altura). O genótipo PM22 apresentou elevada densidade populacional de perfilhos (3216 perfilhos/m2 ) e relação folha:colmo (6,33) no período...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Capim Massai; Semiárido; Produção de biomassa; Brasil.; Forragem; Gramínea Forrageira; Forage production; Forage grasses; Semiarid soils; Biomass production; Brazil.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1117067

Disponibilidade de biomassa de gramíneas em áreas sem a presença de bovinos, Pantanal, MS.
Provedor de dados: 14
Autores: CRISPIM, S. M. A.; SORIANO, B. M. A.; SANTOS, S. A.
Esse estudo teve por objetivo acompanhar a disponibilidade de matéria seca, a composição botânica e frequência das espécies e cobertura do solo, em duas áreas sem a presença de bovinos, na fazenda experimental Nhumirim, Pantanal, MS, no período de setembro/2014 a setembro/2016.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Gramínea Forrageira; Biomassa; Cobertura Vegetal; Forage grasses; Biomass production.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1134297

Produção de biomassa, composição química e atributos químicos do solo do consórcio milho-leguminosas forrageiras na comunidade Boqueirão, Sobral-CE.
Provedor de dados: 14
Autores: POMPEU, R. C. F. F.; SOUZA, H. A. de; FARIAS, J. L. de S.; BEZERRA, J. W. T.; FERNANDES, F. E. P.; PEREIRA, P. L.; ARAUJO, M. R. A. de; RIELLA, J.
Objetivou-se avaliar a produção de biomassa, composição química e os atributos químicos do solo do consórcio milho-leguminosas forrageiras numa comunidade do município de Sobral, CE. Foram avaliados os consórcios milho-cunhã e milho-crotalária num delineamento de blocos completos casualizados, com quatro repetições. As parcelas experimentais foram constituídas de seis fileiras, com 5 m de comprimento, espaçadas entre si de um metro entre milho. O plantio do milho foi realizado no dia 01 de março de 2019, enquanto que o plantio das leguminosas foi realizado no dia 14 de março de 2019. Foram observadas diferenças de teores de matéria seca entre os consórcios cunhã-milho e crotalária-milho. Observou-se que a produção do consórcio crotalária-milho foi superior...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Feed crops; Nutrient cycling; Semiárido; Brasil; Região Nordeste; Leguminosa Forrageira; Cunha; Cobertura Morta; Volumosos; Alimento Para Animal; Forage production; Forage crops; Mulching; Biomass production; Intercropping; Brazil; Semiarid soils.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1117068

Lignocellulosic biomass: organosolv process for lignocellulosic biomass fractionation.
Provedor de dados: 14
Autores: GAMBETTA, R.
Organosolv process for lignocellulosic biomass fractionation that eliminates the washing step and decreases the precipitation of dissolved/extracted lignin on cellulose fibers.
Tipo: Folders
Palavras-chave: Organosolv; Biomass production; Cellulose; Fractionation.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1133102

Sistema de Integração Lavoura-Pecuária em condições de sequeiro: garantia de reserva de forragem de qualidade, em forma de silagem, para o Semiárido.
Provedor de dados: 14
Autores: ROGERIO, M. C. P.; POMPEU, R. C. F. F.; GUEDES, F. L.; TONUCCI, R. G.; SOUZA, H. A. de; MAGALHAES, J. A.; CARNEIRO, M. S. de S.; GUEDES, L. F.; OLIVEIRA, D. de S.; SILVA, S. F.
Resumo: O objetivo deste comunicado, portanto, é discorrer sobre indicadores produtivos, plantio e tratos culturais das culturas de milho, milheto, sorgo e girassol consorciadas com os capins buffel e massai, valor nutritivo e características fermentativas das melhores silagens oriundas dessas culturas anuais consorciadas com gramíneas forrageiras cultivadas em condições de sequeiro no semiárido brasileiro. Ao final, algumas sugestões de formulações dietéticas para diferentes categorias de ovinos contendo as silagens indicadas.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Produção de forragem.; Planejamento alimentar; ILP; Sistemas de integração; Feed grasses; Integração lavoura-pecuária; Ovino; Alimentação Na Seca; Biomassa.; Ruminante; Gramínea Forrageira; Alimento Para Animal; Brazil.; Sheep feeding; Ruminant nutrition; Forage grasses; Forage crops; Biomass production; Semiarid soils.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1102320

Marcha de absorção de macronutrientes na mamoneira híbrida de porte baixo em Mato Grosso.
Provedor de dados: 14
Autores: SEVERINO, L. S.; SCHLICK, G. D. de S.; DE PAULA, M. P.; SANTOS, T. I. dos; SOUZA, E. C. S.
O óleo de mamona (Ricinus communis) tem grande demanda na indústria química mundial para ser utilizado em diversos produtos. Essa cultura é atraente para várias regiões do Brasil, principalmente por sua característica de boa tolerância à seca no cultivo em segunda safra e pelo seu efeito supressor de algumas espécies de nematoides que causam redução de produtividade em outras lavouras agrícolas. Os avanços na tecnologia de produção de mamona estão possibilitando sua expansão para novas regiões de cultivo. A mamona é principalmente uma opção para rotação de culturas no sistema soja-milho-algodão e para cultivo sob irrigação. A obtenção de altas produtividades na cultura da mamona depende da adequada nutrição da planta. O estudo da marcha de absorção e...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Mamona; Produção; Hibrido; Rotação de Cultura; Soja; Milho; Nutrição Vegetal; Biomassa; Sistema de Cultivo; Planta Oleaginosa; Castor beans; Oilseeds; Soybean products; Biomass production; Cotton; Crop rotation; Agricultural conservation practice.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1135522

Crescimento de plantas de soja em função da redução da densidade de semeadura e sua relação com a Produtividade.
Provedor de dados: 14
Autores: BALBINOT JUNIOR, A. A.; FERREIRA, A. S.; WERNER, F.; SILVA, M. A. de A. e; ZUCARELI, C.
O objetivo deste trabalho foi avaliar o crescimento de duas cultivares de soja durante o ciclo de desenvolvimento, em função da redução na densidade de semeadura, e verificar a sua relação com a produtividade. Foi conduzido um experimento de campo nas safras 2016/17 e 2017/18, em Londrina, PR. O delineamento experimental foi de blocos completos casualizados, com cinco repetições e esquema fatorial 2 x 5. O primeiro fator se consistiu de duas cultivares de soja, BRS 1010IPRO e NS 5959IPRO e o segundo por cinco densidades de semeadura: 100, 80, 60, 40 e 20% da quantidade de sementes indicada pelo obtentor das cultivares. Em geral, não houve diferenças expressivas de biomassa acumulada durante o ciclo de desenvolvimento entre as densidades de 100, 80 e 60% do...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Soja; Densidade de Semeadura; Pratica Cultural; Biomassa; Soybeans; Biomass; Biomass production.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1099933

Modelagem computacional do crescimento de cana-de-açúcar para predição de produtividade potencial.
Provedor de dados: 14
Autores: SILVA, F. C. da; BARBIERI, V.; DÍAZ-AMBRONA, C. G. H.; CASTRO, A. de; BOCCA, F. F.; PODSCLAN, S. B.
Resumo- Neste artigo é apresentado um modelo ecofisiológico-matemático (BrCane) para predizer a produtividade potencial - sem restrições nutricionais ou de água -, a fim de analisar a sustentabilidade da expansão do cultivo de cana-de-açúcar em novas áreas para produção de etanol. A arquitetura do modelo BRCANE foi concebida para uma planta tipo C4, onde a evolução mensal da biomassa foi estimada em função da temperatura do ar e da radiação incidente. Nas simulações apresentadas a produção de biomassa levou em conta a taxa bruta de fotossíntese subtraídas as perdas para respiração de manutenção, senescência de folhas e morte de perfilhos durante o ciclo da cultura. O modelo BRCANE também foi usado para descrever o comportamento fisiológico em função das...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Cana-de-açúcar; Produção de biomassa; Produtividade potencial; Modelo ecofisiológico; Ecophysiological model; Curva de crescimento; Sugarcane; Biomass production; Models.
Ano: 2012
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/932214

Potencial energético das biomassas de canjiqueira e do cambará.
Provedor de dados: 14
Autores: GALVANI, F.; OKAMURA, L. A.; SALIS, S. M.
Resumo: A utilização de fontes renováveis na matriz energética mundial, especialmente a proveniente da biomassa, é um dos maiores desafios da sociedade atual na busca por alternativas ambientalmente favoráveis e economicamente viáveis. O uso de resíduos de biomassa tem se mostrado ser essa alternativa para a produção de energia renovável, seja por meio da queima direta, ou pela fabricação de bioproduto. Neste sentido, o objetivo deste trabalho é caracterizar química e fisicamente os resíduos de duas espécies lenhosas nativas, canjiqueira (Byrsonima cydoniifolia) e cambará (Vochysia divergens), provenientes do manejo de limpeza do campo no Pantanal para avaliar e identificar suas potencialidades de aplicação em novos produtos e/ou geração de energia. As...
Tipo: Folhetos
Palavras-chave: Bioenergia; Biomassa; Recurso Energético; Bioenergy; Biomass production; Energy resources.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1137802

Aboveground biomass and concentration of nutrients in semiarid rangeland plant species: Influence of grazing and soil moisture
Provedor de dados: 85
Autores: Gul,B; Islam,M; Ahmad,S; Gul,S.
Spatial and temporal patterns of aboveground biomass and nutritive value of rangeland species with respect to the influence of grazing and soil moisture were investigated. The research was conducted during two years at the Tomagh Research Station, near Sanjawi, Ziarat District, Balochistan, Pakistan. This area is protected from grazing since 1998; however, some of the area is open for grazing. Tree sites were selected for research purposes: a protected plain, a protected hilly, and an unprotected plain grazed area. Sampling was carried out during the spring, summer and autumn seasons. Results revealed that soil moisture was greater at the protected than unprotected sites. The aboveground plant biomass was 66% to 76% lower at unprotected than protected...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rangeland; Biomass production; Season; Semiarid; Grazing; Grass.
Ano: 2016
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572016000100013

Allelopathic Effect of Some Associated Weeds of Wheat on Germinability and Biomass Production of Wheat Seedlings
Provedor de dados: 87
Autores: ZOHAIB,A.; TABASSUM,T.; ANJUM,S.A.; ABBAS,T.; NAZIR,U.
ABSTRACT: Weeds associated with crops may impose their phytotoxic effects on crop plants through the release of their allelochemicals and hence seriously reduce crop productivity. The present study was conducted to investigate the allelopathic effect of water soluble phenolics of weeds associated with wheat crop (Vicia sativa, Trigonella polycerata, Lathyrus aphaca, Medicago polymorpha, Melilotus indica) on germinability and biomass production of wheat seedlings by using their water extracts at 2.5% (w/v) and 5% (w/v) concentrations and residues of the same weeds with 0, 15 and 30 d decomposition periods at 2% (w/w) concentration. The results showed that the water extracts of M. indica and V. sativa at 5% concentration imposed the most inhibitory effect on...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Wheat; Weed allelopathy; Water extracts; Residues; Germination; Biomass production.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582017000100287

Application of Plant Growth Regulators to Stipa krylovii in the Xilin Gol Grassland
Provedor de dados: 87
Autores: JUN,L.V.; XUE-FENG,Z.; ANJUM,S.A.; JI-XUAN,S.; YAN,Z.; YU-FENG,D.; ZOHAIB,A.; ALI,I.; YU,XU; XIU-JUAN,H.; SAN-GEN,W.
ABSTRACT: Plant growth regulators are an immense group of substances that have the ability to alter growth pattern of plants and can be used for improving plant growth and productivity. A study was conducted in the Xilin Gol grassland of Inner Mongolia, China, to ascertain the growth and biomass production of Stipa krylovii in response to exogenous application of different growth regulators at various concentrations viz. naphthalene acetic acid (NAA), 6-benzylaminopurine (6-BA), brassinosteroid (BR), sodium nitrophenolate (SNP) and forchlorfenuron, and gibberellic acid (GA3). Application of growth regulators significantly enhanced the growth and biomass production of S. krylovii. The height of vegetative shoot was enhanced mostly by the application of 100...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Growth; Pastures; Biomass production.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100251

Energianövények szántóföldi termelésének optimalizálása
Provedor de dados: 31
Autores: Bedene Szoke,   Eva; Mohamed,   Zsuzsanna.
Az általunk kidolgozott Biomassza Termelési Modell (BTM) lineáris programozáson alapul, és lehetővé teszi, hogy adott mezőgazdasági területre vonatkozóan meghatározzák az optimális vetésszerkezetet, különböző célfüggvények mellett. A különböző célfüggvények esetére vonatkozó optimalizálást a gazdasági környezet, különösen a szabályozó rendszer változása miatt tartottuk szükségesnek, amely adott körülmények között a legkedvezőbb gazdasági haszonnal jár. A döntés fő kérdése, hogy a rendelkezésre álló földterület és erőforrás-kapacitás mellett élelmiszercélú, vagy inkább energetikai célú hasznosítás irányában célszerű-e elmozdulni. --------------------------------------- We have developed a Biomass Production Model (BTM), which is based on linear programming....
Tipo: Journal Article
Palavras-chave: Biomassza-termelés; LP modell; Optimalizálás.; Biomass production; LP model; Optimisation; Land Economics/Use; Production Economics; Research Methods/ Statistical Methods.
Ano: 2010
URL: http://purl.umn.edu/99135

Biomass Supply from Alternative Cellulosic Crops and Crop Residues: A Preliminary Spatial Bioeconomic Modeling Approach
Provedor de dados: 31
Autores: Egbendewe-Mondzozo,   Aklesso; Swinton,   Scott M.; Izaurralde,   R. Cesar; Manowitz,   David H.; Zhang,   Xuesong.
This paper introduces a spatial bioeconomic model for study of potential cellulosic biomass supply at regional scale. By modeling the profitability of alternative crop production practices, it captures the opportunity cost of replacing current crops by cellulosic biomass crops. The model draws upon biophysical crop input-output coefficients, price and cost data, and spatial transportation costs in the context of profit maximization theory. Yields are simulated using temperature, precipitation and soil quality data with various commercial crops and potential new cellulosic biomass crops. Three types of alternative crop management scenarios are simulated by varying crop rotation, fertilization and tillage. The cost of transporting biomass to a specific...
Tipo: Working or Discussion Paper
Palavras-chave: Biomass production; Bioenergy supply; Biofuel policy; Bioenergy; Cellulosic ethanol; Agro-ecosystem economics; Ecosystem services economics; Agro-environmental trade-off analysis; Mathematical programming; EPIC; Agricultural and Food Policy; Crop Production/Industries; Environmental Economics and Policy; Land Economics/Use; Production Economics; Resource /Energy Economics and Policy; Q16; Q15; Q57; Q18.
Ano: 2010
URL: http://purl.umn.edu/98277

Stochastic Viability of Second Generation Biofuel Chains: Micro-economic Spatial Modeling in France
Provedor de dados: 31
Autores: Bamiére,   Laure; Martinet,   Vincent; Gouel,   Christophe; Le Cadre,   Elodie.
Within an overall project to assess the ability of the agricultural sector to contribute to bioenergy production, we set out here to examine the economic and technological viability of a bioenergy facility in an uncertain economic context, using the stochastic viability approach. We consider two viability constraints: the facility demand for lignocellulosic feedstock has to be satisfied each year and the associated supply cost has to be lower than de profitability threshold of the facility. We assess the viability probability of various supplying strategies consisting in contracting a given share of the feedstock demand with perennial dedicated crops at the initial time and then in making up each year with annual dedicated crops or wood. The demand...
Tipo: Conference Paper or Presentation
Palavras-chave: Biofuel; Biomass production; Spatial economics; Stochastic viability; Monte Carlo simulation; Resource /Energy Economics and Policy.
Ano: 2011
URL: http://purl.umn.edu/114238

Biomass for energy production in the context of selected European and international policy objectives
Provedor de dados: 31
Autores: Becker,   Arno.
Biomass based energy production has attained a significant market share within the developing renewable energy market. In comparison to alternative renewable energy sources, biomass has several special features: it is not inexhaustible in the short term (limitation of arable land) and it is not only an energy source. Other usages like food or feed compete with energy production for this resource. A number of problems arise which have a direct impact on the fulfillment of policy objectives which are connected with its promotion. Primarily, the production of bioenergy has significant impacts on coupled biomass markets. Further, a change in production intensity or arable land use increases the use of nutrient loads and agro - chemicals. When evaluating...
Tipo: Conference Paper or Presentation
Palavras-chave: Bioenergy; Biofuels; Biomass production; Impact analysis.; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/43974

Can Dispersed Biomass Processing Protect the Environment and Cover the Bottom Line for Biofuel?
Provedor de dados: 31
Autores: Egbendewe-Mondzozo,   Aklesso; Swinton,   Scott M.; Bals,   Bryan D.; Dale,   Bruce E.
This paper compares environmental and profitability outcomes for a centralized biorefinery for cellulosic ethanol that does all processing versus a biorefinery linked to a decentralized array of local depots that pretreat biomass into concentrated briquettes.  The analysis uses a spatial bioeconomic model that maximizes predicted profit from crop and energy products, subject to the requirement that the biorefinery must be operated at full capacity.  The model draws upon biophysical crop input-output coefficients simulated with the EPIC model, as well as input and output prices, spatial transportation costs, ethanol yields from biomass, and biorefinery capital and operational costs. The model was applied to 82 cropping systems simulated across 37...
Tipo: Working Paper
Palavras-chave: Biomass production; Bioenergy supply; Cellulosic ethanol; Environmental trade-off analysis; Bioeconomic modeling; EPIC; Spatial configuration; Local biomass processing; Crop Production/Industries; Environmental Economics and Policy; Production Economics; Resource /Energy Economics and Policy; Q16; Q15; Q57; Q18.
Ano: 2011
URL: http://purl.umn.edu/119348

Growth and production of irrigated vitória pineapple grown in semi-arid conditions
Provedor de dados: 94
Autores: Pegoraro,Rodinei Facco; Souza,Bruna Aparecida Madureira de; Maia,Victor Martins; Amaral,Uirá do; Pereira,Marlon Cristian Toledo.
This study aimed to evaluate the growth characteristics of irrigated Vitória pineapple plants grown in semi-arid conditions and determine its developmental stages based on those characteristics. It was used a randomized block design with four replicates. The experimental treatments were: plant harvest at 270, 330, 390, 450, 510, 570, 690, 750, and 810 days after planting (DAP). The following variables were determined: plant height, stem diameter, D-leaf length, D-leaf fresh and dry mass, biomass production of plants and plant parts (organs), and vegetative biomass. Five phenological stages are proposed based on vegetative biomass production: &lt; 20% biomass production (V1); 21-40% (V2); 41-60% (V3); 61-80% (V4); and &amp;gt; 80% (V5). The maximum growth...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ananas comosus var. comosus; Biomass production; Maximum accumulation rate.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452014000300022

Relationships between leaf anatomy, morphology, and water use efficiency in Aloe vera (L) Burm f. as a function of water availability
Provedor de dados: 97
Autores: Silva,Herman; Sagardia,Susana; Ortiz,Mauricio; Franck,Nicolás; Opazo,Marcela; Quiroz,Madeleine; Baginsky,Cecilia; Tapia,Cristián.
The effects of water availability were evaluated on the photosynthetic tissue anatomy in Aloe vera(L) Burm f. and its relationship with morphological, physiological parameters, and water use efficiency as a function of aerial biomass and gel production. Plants were subjected to four levels of water availability equivalent to 20% (T1), 15% (T2), 10% (T3), and 5% (T4) of the atmospheric evaporative demand. The plants exhibited anatomical, morphological, and physiological responses to the different watering treatments. The extreme treatments produced negative responses due to excess water in T1 and water deficit in T4. Treatments T2 and T3 elicited positive responses in cell characteristics and productivity. Anatomical and structural characteristics were...
Tipo: Journal article
Palavras-chave: Anatomical adaptations; Biomass production; Growth; Stomata.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2014000100012

Rates of calcium, yield and quality of snap bean
Provedor de dados: 63
Autores: Favaro,Simone Palma; Braga Neto,José Antônio; Takahashi,Hideaki Wilson; Miglioranza,Édison; Ida,Elza Iouko.
Calcium ions (Ca) play an important role in many biochemical processes, delaying senescence and controlling physiological disorders in fruits and vegetables. The objective of this experiment was to analyze the effect of increasing calcium concentrations in snap beans. Snap bean cultivar UEL 1 was sown in sand containing 80 mg L-1 of calcium supplemented with nutrient solution, plus calcium at different contents: 0, 75, 150 and 300 mg L-1. Ca was mainly recovered in the shoots, followed by roots and pods. Calcium concentrations in the pods were 130, 259, 349 and 515 mg 100 g-1dry matter on a dry weight basis, in relation to the enhancement of calcium contents in the nutrient solution, respectively. A negative relationship between nitrogen content in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris L.; Biomass production; Pod; Nutrient solution; Nitrogen.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000600009

Components of net aerial primary production in a Bambusa oldhamii plantation
Provedor de dados: 115
Autores: Castañeda-Mendoza,Arturo; Vargas-Hernández,J. Jesús; Gómez-Guerrero,Armando.
Biomass production is an important criterion to be considered for the establishment of commercial forestry plantations for bioenergy production. In this study, an estimation of net aerial primary production (NAPP) was made in a young plantation of Bambusa oldhamii Munro from the sum of biomass production from growth of new culms, biomass increment of the pre-existing culms, and production of litter. Biomass production in the incorporated culms was 15.82 Mg ha-1 year-1, of which 13.77 Mg (87 %) corresponded to stems and 2.05 Mg (13 %) to foliage. Biomass increment in the pre-existing culms was 10.88 Mg ha-1. One- and two-year-old cohort production was 7.31 and 3.57 Mg ha-1. Litter production was 5.56 Mg ha-1 year-1. Results show that NAPP was 32.20 Mg ha-1,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bamboo; Litter; Biomass production; Bioenergy; Tropical forest species.
Ano: 2012
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952012000100006

INFLUENCE OF DIFFERENT DIETS ON LENGTH AND BIOMASS PRODUCTION OF BRINE SHRIMP ARTEMIA FRANCISCANA (KELLOG, 1906)A.
Provedor de dados: 50
Autores: García-Ulloa Gómez,Manuel; Gamboa Delgado,Julián; Zavala Aguirre,José Luis; Ogura Fujii,Tetsuya; Lavens,Patrick.
Total length and biomass production of the brine shrimp Artemia franciscana were studied fed on soybean and wheat micropulverized meals (applied alone or mixed at different proportions), live microalgae (Tetraselmis suecica and Chaetoceros calcitrans), and dried Spirulina as diets. Eight diets were tested in triplicates during 10 days. Significant differences (P &lt; 0.05) were observed from day 1 onwards. The mixed meal-based diets showed better production results. At day 1, the Artemia nauplii fed on the 70% wheat meal/ 30% soya meal diet were 30% longer compared to the animals from the C. calcitrans group. At day 10, the organisms fed with the 100% soya meal diet were 68% longer than those fed on the C. calcitrans diet. The final biomass production (wet...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artemia franciscana; Soya meal; Wheat meal; Microalgae; Length; Biomass production.
Ano: 1999
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97611999000100001

Effect of three different types of culture conditions on Spirulina maxima growth
Provedor de dados: 52
Autores: Monteiro,Maria Paula da Costa; Luchese,Rosa Helena; Absher,Theresinha Monteiro.
Growth of Spirulina maxima was studied in three types of culture conditions with four replicates each: 1) manual aeration with natural sunlight; 2) manual aeration with artificial light; and 3) constant aeration with an aquarium compressor and artificial light. After 185 days of incubation, growth declined in the first two treatments, while in the third treatment, higher growth was observed with average optical density of 3.7 against 1.8 and 1.9 in the first and second treatment, respectively. This was probably due to the fact that under constant aeration the salts were suspended avoiding the crystallization what could cause a decrease in the availability of the necessary nutrients for the growth. Also, the constant stirring allowed all the cells to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquarium compressor; Biomass production; Microalgal growth; Spirulina.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000200016

Effect of soil contaminated by diesel oil on the germination of seeds and the growth of Schinus terebinthifolius Raddi (Anacardiaceae) Seedlings
Provedor de dados: 52
Autores: Bona,Cleusa; Rezende,Igor Mendonça de; Santos,Gedir de Oliveira; Souza,Luiz Antônio de.
The effect of soil polluted by diesel oil on the germination of seeds and the growth of Schinus terebinthifolius Raddi seedlings was analyzed at different times after contamination of the soil. The experiments were conducted under greenhouse conditions, with four treatments and five repetitions. The four treatments included: soil contaminated 30 (T30), 90 (T90) or 180 (T180) days before planting as well as a non-polluted soil (T0) (control). Soil saturated to 50% of its maximum retention capacity (MRC) was contaminated with diesel oil at a rate of 92.4 mL per kg. The germination rate and germination speed index (GSI) were significantly affected only in T30. The development of the plants was affected significantly in all the treatments, with reductions of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aroeira; Biomass production; Eophyll; Residual contamination.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000600025

Application of response surface methodology to enhancement of biomass production by Lactobacillus rhamnosus E/N
Provedor de dados: 58
Autores: Polak-Berecka,Magdalena; Waśko,Adam; Kordowska-Wiater,Monika; Targoński,Zdzisław; Kubik-Komar,Agnieszka.
Response surface methodology (RSM) was employed to study the effects of various medium components on biomass production by Lactobacillus rhamnosus E/N. This strain is commonly used in the pharmaceutical and food industries due to its beneficial effect on the human gut and general health. The best medium composition derived from RSM regression was (in g/l) glucose 15.44, sodium pyruvate 3.92, meat extract 8.0, potassium phosphate 1.88, sodium acetate 4.7, and ammonium citrate 1.88. With this medium composition biomass production was 23 g/l of dry cell weight after 18 h of cultivation in bioreactor conditions, whereas on MRS the yield of biomass was 21 g/l of dry cell weight. The cost of 1 g of biomass obtained on MRS broth was calculated at the level of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Response surface methodology; Lactobacillus rhamnosus; Medium selection; Biomass production.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000400035

Calibration and validation of the AquaCrop model for the soybean crop grown under different levels of irrigation in the Motopiba region, Brazil
Provedor de dados: 65
Autores: Silva,Vicente de Paulo Rodrigues da; Silva,Roberta Araújo e; Maciel,Girlene Figueiredo; Braga,Célia Campos; Silva Júnior,José Luiz Cabral da; Souza,Enio Pereira de; Almeida,Rafaela Silveira Rodrigues; Silva,Madson Tavares; Holanda,Romildo Morant de.
ABSTRACT: The water-driven AquaCrop model to simulate yield response has been calibrated and validated for soybean cultivated under different water levels irrigation in Matopiba region, Brazil. The crop was submitted to seven irrigation treatments during the dry season and a dry treatment in the rainy season. The model was parameterized and calibrated by using soybean yield data collected at field level. Model performance was evaluated by using the following statistical parameters: prediction error (Pe), Nash-Sutcliffe efficiency index (E), coefficient of determination (R2), mean absolute error (MAE), root mean square error normalized (RMSEN) and Willmott’s index (d). The statistical analyses of the AquaCrop model calibrated for the Matopiba region...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biomass production; Evapotranspiration leaf area index; Deficit irrigation yield.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000100351