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| Registros recuperados: 834 | |
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| Buriyo, A.S.; Kivaisi, A.K.. |
| Seasonal biomass variation and agar yield of G. salicornia (C. Ag.) Dawson from Oyster Bay, Dar es Salaam, and Chwaka Bay, Zanzibar, were determined, and some properties of the agar examined. Mean biomass and canopy cover values ranged from 21–60 g/m2 and 7– 20 %, respectively. The highest mean biomass and cover values were obtained during the SE monsoon. Agar yield varied from 13.7 to 30.2 % (dry weight) and was highest during the dry NE monsoon period. Alkali treatment generally reduced agar yield by 25–56 %. Gel strength of the agar gels ranged between 118 and 251 g/cm2 and was significantly higher during the NE monsoon period (t = 2.2; P = 0.04 and t =... |
| Tipo: Journal Contribution |
Palavras-chave: Agar; Biomass. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/964 |
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| Mascarenhas Santos, Maria do Socorro; Silva, Cesar José da; Cruz, Sandra Helena da; Batistote, Margareth; Cardoso, Claudia Andrea Lima. |
| Energy cultures are emerging as viable renewable energy sources because they satisfy sustainability requirements. The present study involves a survey regarding the technological characteristics for sugarcane and sweet sorghum energy crops, in addition to their potential for bioethanol production. An exploratory survey was conducted regarding the agronomic and technological characteristics of cane and sorghum. Pre-inmates were produced with YPSAC 5% liquid medium, sterilized and 0.10 grams of yeasts FT858 and Pedra-2 were inoculated and incubated at 30 °C for 10 h at 250 rpm. After the production, the cells were recovered by centrifugation, at 105 rpm, resulting in a 10 mg mg-1 concentration of moist dough. This dough was subsequently inoculated in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biomass; Saccharomyces cerevisiae; Bioethanol. |
| Ano: 2022 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/6719 |
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| SAMPAIO,HEBERT A.; MARTINELLI-LEMOS,JUSSARA M.. |
| The present work investigated the occupation and the correlation of the shrimp abundance in relation to environmental variables in different habitats (mangroves, salt marshes and rocky outcrops) in an Amazon estuary. The collections were made in August and November 2009, at low syzygy tide on Areuá Beach, situated in the Extractive Reserve of Mãe Grande de Curuçá, Pará, Brazil totaling 20 pools. In each environment, we recorded the physical-chemical factors (pH, salinity, and temperature) and measured the area (m2) and volume (m3) of every pool through bathymetry. The average pH, salinity, temperature, area and volume of tide pools were 8.75 (± 0.8 standard deviation), 35.45 (± 3), 29.49 °C (± 2.32), 27.41 m2 (± 41.18), and 5.19 m3(± 8.01), respectively.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Habitat; Density; Biomass; Decapoda. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000100333 |
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| Giménez Hurtado, E.; Alzugaray Martínez, R.; Garcés Rodríguez, Y.; Delgado Miranda, G.; Ventura Flores, A.. |
| The biomass of the pink shrimp Farfantepenaeus notialis present in Ana María gulf during the period 1997-2010, was determined by means of statistical analysis of capture for ages (SCA). The biomass was increased from the year 2008 due to the increase of the recruitment, which shows its biggest average annual values in July, November and March. The recruitspre-adults arrival to the fishing area occurs by two main zones, in front of Ana María keys, and in Sta. Cruz Abajo, at North of the South portion of the Doce Leguas keys. A fishery at the end of the year may provoke an over fishing of the growth and to affect the available biomass for the... |
| Tipo: Journal Contribution |
Palavras-chave: Biomass; Recruitment; Shrimp fisheries. |
| Ano: 2012 |
URL: http://hdl.handle.net/1834/4382 |
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| Gul,B; Islam,M; Ahmad,S; Gul,S. |
| The effect of fre on growth and nutritive value of Saccharum griffithii Munro ex Boiss-ravennae (Linn.) Murr. hybrid, a low palatable perennial grass in the semi-arid region of the highlands of Balochistan, Pakistan, was evaluated during 2008 and 2009. Prescribed fire treatments were applied in February 2008 and 2009 at the dormant stage of vegetation. Different growth parameters (tiller height, tiller number/plant), forage production (fresh, dry) and nutritive value (crude protein, ash) were compared with control (unburnt) plots. Fire increased the number of tillers, and the fresh and dry forage production in both years. Fire also improved the crude protein contents. Prescribed fire at the dormant stage of vegetation can be used as a vegetation tool to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tiller growth; Fire; Biomass. |
| Ano: 2014 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572014000200025 |
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| 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... |
| 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 |
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| MOREIRA-BURGER,DÉBORAH; DELITTI,WELINGTON B. C.. |
| Este trabalho teve como objetivos estimar a fitomassa epigéa da mata ciliar do rio Mogi-Guaçu e determinar a melhor equação preditiva da fitomassa arbórea. O trabalho foi realizado num fragmento de mata localizado no município de Itapira - SP (22°21'S e 46°51'W). Foram delimitadas 12 parcelas de 25 m², para determinação da fitomassa através do método destrutivo. Os indivíduos arbóreos foram identificados e cortados ao nível do solo. De cada árvore, foram tomadas medidas de perímetro basal e altura. As folhas foram separadas manualmente dos ramos para determinação do peso fresco da porção foliar e lenhosa. A vegetação herbácea-arbustiva, de porte inferior a 1,3 m, existente em 3 m² de cada parcela, foi cortada ao nível do solo e tomadas as medidas de peso... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allometry; Biomass; Gallery forest. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041999000300011 |
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| Camargo,F. A.O.; Gianello,C.; Vidor,C.. |
| The reaction of nitrogen compounds with ninhydrin can be used as an indicator of cytoplasmic materials released from microbial cells killed by fumigation. Total-N, ninhydrin-reactive-N (NR-N), ammonium-N (A-N), and α-amino-N in the microbial biomass of soils from the State of Rio Grande do Sul, Brazil, were determined, in 1996, in 0.5 mol L-1 K2SO4 extracts of fumigated and non-fumigated soils. Total-N varied from 20.3 to 104.4 mg kg-1 and the ninhydrin-reactive-N corresponded, in average, to 27% of this. The ninhydrin-reactive-N was made up of 67% ammonium-N and 33% aminoacids with the amino group at the α-carbon position. It was concluded that colorimetric analysis of NR-N and A-N may be used as a direct measure of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biomass-N; Biomass ninhydrin-reactive-N; Biomass ammonium-N; Biomass α-amino-N. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06831999000100022 |
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| Smith,Ana K. de G.; Alesi,Letícia S.; Varanda,Luciano D.; Silva,Diego A. da; Santos,Luis R. O.; Yamaji,Fábio M.. |
| ABSTRACT The search for new alternatives in order to reuse residues is one way to minimize environmental impacts by promoting sustainable practices. This study analyzed the technical feasibility of briquettes production from urban pruning residue and sugarcane bagasse, turning them into a product with higher added value besides directing their use and reducing their improper disposal. Five treatments were studied from different ratios of the two residues: T1, T2, T3, T4 and T5, respectively made of 100% of urban pruning; 50% urban pruning and 50% sugarcane bagasse; 25% urban pruning and 75% sugarcane bagasse; 10% urban pruning and 90% sugarcane bagasse; 100% sugarcane bagasse. The materials were characterized physically, chemically and energetically.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioenergy; Biomass; Reusing waste. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000200138 |
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| Pereira Júnior,Lécio Resende; Andrade,Eunice Maia de; Palácio,Helba Araújo de Queiroz; Raymer,Poliana Costa Lemos; Ribeiro Filho,Jacques Carvalho; Pereira,Francisco Jairo Soares. |
| ABSTRACT The dry forests are the type most widely distributed vegetation in the tropics, and studies aimed at quantifying the carbon stock in these forests are important for it to be quantified their participation as mitigating the effects of climate change. With that in mind, the aim of this research was to quantify the carbon stocks in the woody, herbaceous, litter and root components of a patch of dry tropical forest, with 30 years of regeneration in Iguatu-CE, Brazil. Initially the vegetation was inventoried by means of a floristic and phytosociological survey of the woody component in a 1 ha area which had been under conservation. The biomass was then estimated employing allometric equations, and the stored carbon was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Semi-arid; Caatinga; Biomass. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000100032 |
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| Velázquez-Martí,Borja; Fernández-González,Elena; Callejón-Ferre,Ángel Jesús; Estornell-Cremades,Javier. |
| This study evaluates the technology and work systems used in order to harvest residual biomass from pruning in the specific conditions of Mediterranean fruit orchards (narrow distances between crop-rows). Harvesting has been divided into several types of operations - pruning, biomass alignment between crop tracks, biomass concentration in piles, chipping and bundling - which have been analyzed in five Mediterranean cultivations for three years. Altogether, three types of pruning have been analyzed: Manual, previous mechanical followed by manual, and fully mechanical; Two types of alignment: Manual and mechanical; Three concentration systems: Manual,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Logistic biomass; Pruning; Bioenergy. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000300002 |
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| Registros recuperados: 834 | |
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