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| Registros recuperados: 1.253 | |
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| SILVA, V. Q. R. da; DAHER, R. F.; GRAVINA, G. de A.; LEDO, F. J. da S.; TARDIN, F. D.; SOUZA, M. C. de. |
| Objetivou-se estimar os efeitos da capacidade geral de combinação (CGC) dos genitores e capacidade específica de combinação (CEC) dos híbridos de capim elefante por meio de análise dialélica adaptada a dialelos parciais, com base em caracteres bromatológicos. Foram avaliados 16 combinações híbridas e oito genitores no delineamento experimental de blocos casualizados com três repetições. No estudo foram consideradas as percentagens de matéria seca (%MS), cinzas (%CIN), proteína bruta (%PB) e fibra em detergente neutro (FDN). Concluiu-se que houve diferença significativa entre os genótipos para as características avaliadas, com predominância de efeito gênico de dominância. Com base na CGC, os melhores genitores foram Taiwan A-144, Vruckwona Africana e Taiwan... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Biomassa; Biomass. |
| Ano: 2014 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/1003247 |
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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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| HUNTER, M. O.; KELLER, M.; VICTORIA, D. de C.; MORTON, D. C.. |
| Tropical forests account for approximately half of above-ground carbon stored in global vegetation. However, uncertainties in tropical forest carbon stocks remain high because it is costly and laborious to quantify standing carbon stocks. Carbon stocks of tropi-5 cal forests are determined using allometric relations between tree stem diameter and height and biomass. Previous work has shown that the inclusion of height in biomass allometries, compared to the sole use of diameter, significantly improves biomass estimation accuracy. Here, we evaluate the effect of height measurement error on biomass estimation and we evaluate... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Carbon stocks; Biomass. |
| Ano: 2013 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/961496 |
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| DIAS FILHO, M.B.. |
| O crescimento e a alocacao de biomassa das gramineas forrageiras tropicais Brachiaria brizantha cv. Marandu e B. humidicola foram comparados, em plantas cultivadas em vasos, a pleno sol e a 70% de interceptacao da luz solar, durante um periodo de 30 dias. O objetivo foi avaliar a capacidade de aclimatacao dessas especies ao sombreamento. Ambas as especies mostraram-se capazes de desenvolver rapidamente ajustes fenotipicos em resposta ao sombreamento. A area foliar especcfica e a razão de area foliar foram maiores durante todo o periodo experimental, nas plantas cultivadas a sombra. As plantas sombreadas alocaram significativamente menos biomassa nas raizes e mais nas folhas do que as plantas cultivadas a sombra. No entanto, a alocacao de biomassa no colmo... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Pastagem; Biomassa; Biomass. |
| Ano: 2000 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/103601 |
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| ARAÚJO, L. C. de; SANTOS, P. M.; MENDONÇA, F. C.; MOURÃO, G. B.. |
| The objective of this work was to evaluate yield traits and development of palisadegrass under the influence of water deficit during the establishment period. The experiment was carried out in a greenhouse, in a completely random block statistical design in a factorial arrangement and additional treatment (3 × 3 + 1). The treatments referred to the suppression of irrigation at different phases of the establishment (sowing, germination and initial tillerring) until the soil presented water content of 75%, 50%, and 25% of the moisture related to field capacity (qFC), besides control treatment with no water restriction. Evaluations of number of grown tillers per vase, green leaves per tiller and plant height were carried out weekly, for five weeks after the... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Biomass; Drough; Palisadegrass. |
| Ano: 2011 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/896921 |
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| BRANDAO, Z. N.; ZONTA, J. H.. |
| The Leaf Area Index (LAI) is a key parameter to evaluate the vegetation spectral response, estimating plant nutrition and water requirements. However, in large fields is difficult to obtain accurate data to LAI determination. Therefore, the objective of this study was the estimation of LAI, biomass and yield of irrigated cotton through digital hemispherical photography. The treatments consisted of four nitrogen doses (0, 90, 180 and 270 kg ha-1) and four phosphorus doses (0, 120, 240 and 360 kg ha-1). Digital hemispherical photographs were collected under similar sky brightness conditions at 60 and 75 days after emergence (DAE), performed by the Digital Plant Canopy Imager - CI-110® of CID Inc. |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Algodão; Biomassa; Cotton; Biomass. |
| Ano: 2016 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/1066084 |
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| SILVA, L. S.; SOLLENBERGER, L. E.; COOLEY, K. D.; KOHMANN, M. M.; ARYAL, P.; PEDREIRA, B. C. e; PEDROSO, G. B.; SILVEIRA, M. L.; DUBEUX JÚNIOR, J. C. B.. |
| In forage systems, soil C and N are affected by many factors including above- and belowground biomass, root exudation, defoliation management, and tissue turnover dynamics. There is need to understand the main drivers of soil C and N accumulation under perennial forages, especially those factors associated with differences in growth and canopy characteristics. The objective was to determine soil C and N status and their relationship with above- and belowground characteristics of six rhizoma peanut (RP, Arachis glabrata) entries. Treatments were Apalachee, Chico, Ecoturf, Ona33, Peace, and Tito RP arranged in four replicates of a randomized complete block design. Stands were planted in 2010 and harvested twice per year... |
| Tipo: Resumo em anais de congresso (ALICE) |
Palavras-chave: Forage; Biomass; Carbon; Nitrogen. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1119669 |
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| SILVA, S. A. C. G. da; SANTOS, A. G. dos; SILVA, S. S. L.; LOGES, V.; SOUZA, F. H. D. de. |
| The objective of this study was to characterize eight accessions of Brazilian native grasses, namely Axonopus parodii (AP 01), Paspalum notatum (PN 01, PN 02, PN 03, PN 04, PN 05 and PN 06) and P. lepton (PL 01) as turfgrass. |
| Tipo: Resumo em anais de congresso (ALICE) |
Palavras-chave: Native grasses; Turfgrass; Biomass. |
| Ano: 2017 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1082545 |
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| BARTZ, M. L. C.; BROWN, G. G.; PASINI, A.; FERNANDES, J. de O.; CURMI, P.; DORIOZ, J.; RALISCH, R.. |
| The objective of this work was to evaluate the effect of organic and conventional coffee crops on biomass, population density and diversity of earthworms, in Lerroville, district of Londrina County, Paraná state, Brazil. Earthworm communities were sampled in three areas with organic coffee cultivation (CO1, CO2 and CO3), two with conventional coffee (CC1 and CC2), and a native forest fragment (MT). The soil of the areas CO1, CC1, and MT was classifi ed as Nitossolo Vermelho (Rhodic Kandiudox), while CO2, CO3, and CC2 were on Latossolo Vermelho (Rhodic Hapludox). Eight samples were taken in each area on two occasions, winter and summer, using the Tropical Soil Biology and Fertility (TSBF) method in the 0?20 cm soil layer.... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Biomass; Diversity; Cultivation; Density. |
| Ano: 2009 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/574895 |
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| HERRERA, C. R. J.; VIEIRA, V. R.; BENOLIEL, T.; CARNEIRO, C. V. G. C.; MARCO, J. L. de; MORAES, L. M. P. de; ALMEIDA, J. R. M. de; TORRES, F. A. G.. |
| Sugarcane bagasse is an agricultural residue rich in xylose, which may be used as afeedstock for the production of high-value-added chemicals, such as xylonic acid, an organic acid listed as one of the top 30 value-added chemicals on a NREL report. Here, Zymomonas mobilis was engineered for the first time to produce xylonic acid from sugarcane bagasse hydrolysate. Seven coding genes for xylose dehydrogenase (XDH) were tested. The results show that Z. mobilis may be regarded as a potential platform for the production of organic acids from cheap lignocellulosic biomass in the context of biorefineries. |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Xylose; Biomass; Lignocellulose; Zymomonas. |
| Ano: 2021 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1134099 |
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| SIMEONE, M. L. F.; PARRELLA, R. A. da C.; MAY, A.; SCHAFFERT, R. E.. |
| O sorgo biomassa (Sorghum bicolor (L.) Moench) é uma cultura que apresenta um grande potencial como fonte de biomassa para energia em função de sua alta produtividade, tolerância à seca e por ser uma cultura mecanizável, sendo assim, uma alternativa de biomassa vegetal para ser utilizada em processos de densificação por peletização. O objetivo do trabalho foi produzir pellets de um híbrido de sorgo biomassa BRS716 e realizar sua caracterização de acordo com normas internacionais de qualidade para pellets. Os pellets de sorgo biomassa foram obtidos em uma peletizadora de laboratório sem adição de qualquer aditivo, com diâmetro de 6 mm, comprimentos variados e foram caracterizados quanto a suas propriedades físico-químicas e mecânicas. Os pellets obtidos... |
| Tipo: Artigo em anais de congresso (ALICE) |
Palavras-chave: Bioenergia; Biomassa; Bioenergy; Biomass. |
| Ano: 2017 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1076094 |
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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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| Registros recuperados: 1.253 | |
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