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| Registros recuperados: 90 | |
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| GUILHERME,Edson; SOUZA,Izabele Rodrigues de. |
| ABSTRACT This study reports a successful reproductive event in Megascops choliba in eastern Acre, northern Brazil. An active M. choliba nest was monitored from the hatching of the eggs to the departure of the nestlings. Once hatched, the nestlings were weighed every two days to verify their weight gain over time. The nestlings remained in the nest for 30 days. The pattern of weight gain was similar to that found in other birds, presenting a rapid increase over the first 15 days, followed by a drastic reduction in the mean growth rate during the second half of the development period. Our observations indicate that the breeding season of M. choliba in southwestern Amazonia is similar as that reported for the species in the northern hemisphere. These are the... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Birds; Strigidae; Growth rate; Nest; State of Acre; Brazil. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000300269 |
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| Santos, Vander Bruno; Apta -Agencia de Tecnologia dos Agronegócios; Mareco, Edson Assunção; Universidade Estadual Paulista; Silva, Maeli Dal Pai; Instituto de Biociências, UNESP. Botucatu. |
| Growth of Red, GIFT and Supreme Nile tilapia strains were evaluated. Fish were cultivated in indoor recirculation systems in 0.5 m³ tanks with controlled temperatures of 22, 28 and 30°C. Random samples of 20 fish from each strain (10 fish tank-1) were weighed at day 7, 30, 60, 90 and 120. Exponential model (y=AeKx) and Gompertz model (y = Aexp(-Be-Kx)) were fitted and the estimates parameters were obtained by Weighted Least Squares. At 22°C, Red, GIFT and Supreme strain presented similar growth and fit of exponential model. GIFT and Supreme strain presented higher growth rate at 30°C of cultivation when compared to Red strain. Temperature influences weight and age at the inflection point. The temperature of cultivation influences the growth description of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 50603000 exponential model; Growth rate; Supreme; GIFT; Red tilapia; Weighted model Exponential model; Growth rate; Supreme; GIFT; Red tilapia; Weighted model. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/19443 |
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| SILVA,JANINE F.; GOMES,PAULA B.; SANTANA,ERIKA C.; SILVA,JOÃO M.; LIMA,ÉRICA P.; SANTOS,ANDRE M.M.; PÉREZ,CARLOS D.. |
| In Brazilian reefs, zoanthids, especially Palythoa caribaeorum are fundamental for structuring the local benthic community. The objective of this study was to determine the growth rate of P. caribaeorum, and to assess the influence of the site (different beaches), season (dry and wet), location (intertidal or infralittoral zones), and human pressure associated with tourism. For one year we monitored the cover of P. caribaeorum in transects and focused on 20 colonies. We cut off a square (100 cm2) from the central part of the colony and monitored the bare area for four months in each season. The average growth rates varied from 0.015 and 0.021 cm.day-1. The rate was homogeneous in all localities, and there was no influence from colony site, location, or... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth rate; Trampling; Tropical reefs; Zoantharia. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000200985 |
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| Rufino,Cassyo de Araújo; Tavares,Lizandro Ciciliano; Martín-Ramos,Pablo; Fernandes-Vieira,Jucilayne; Abreu Júnior,José de Souza; Silva,Fábio Júnior Araújo; Fernandes-Correa,Marciabela; Martín-Gil,Jesús. |
| ABSTRACT The aim of this study was to evaluate the effect of different seed coatings consisting of various combinations of three nutrients (calcium, magnesium and silicon) on two soybean cultivars (BRS 243 RR and CD 233 RR). Dolomitic limestone and aluminum silicate were chosen as the nutrient sources. Leaf area, plant height, shoots dry matter, crop growth rate, relative growth rate and net assimilation rate were the studied variables, evincing that the seed coating that comprised calcium, magnesium and silicon led to better performance in terms of growth rates 30 days after emergence. Significant differences in the response to the seed coatings were also observed between the two studied soybean genotypes. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max (L.) Merr.; Growth rate; Leaf area; Micronutrients; Seed treatment.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100500 |
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| Nishiya,Anna Shoko; Almeida-Neto,César de; Romano,Camila Malta; Alencar,Cecília Salete; Ferreira,Suzete Cleusa; Di-Lorenzo-Oliveira,Claudia; Levi,José Eduardo; Salles,Nanci Alves; Mendrone-Junior,Alfredo; Sabino,Ester Cerdeira. |
| ABSTRACTBACKGROUND: It is recognized that hepatitis C virus subtypes (1a, 1b, 2a, 2b, 2c and 3a) originated in Africa and Asia and spread worldwide exponentially during the Second World War (1940) through the transfusion of contaminated blood products, invasive medical and dental procedures, and intravenous drug use. The entry of hepatitis C virus subtypes into different regions occurred at distinct times, presenting exponential growth rates of larger or smaller spread. Our study estimated the growth and spread of the most prevalent subtypes currently circulating in São Paulo.METHODS:A total of 465 non-structural region 5B sequences of hepatitis C virus covering a 14-year time-span were used to reconstruct the population history and estimate the population... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth rate; HCV; Phylogenetic analysis; Subtypes. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702015000500473 |
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| Beltrano,José; Ronco,Marta Guillermina; Arango,María Cecilia. |
| Water deficits cause large yield losses in wheat. Although anthesis is generally considered the most vulnerable period, water deficit during grain filling can also cause yield losses. The objective of this study was to investigate the effect of water stress and rewatering, at three different grain developmental stages, on physiological and grain filling parameters and on yield components. Wheat plants were subjected to water deficit and rewatering at the watery ripe, milk and soft dough stages. In the flag leaf, water stress decreased the relative water content, the chlorophyll and protein content and increased the leakage of solutes, at all three studied grain filling stages. Water stress at the watery ripe and milk stages reduced the final grain dry mass... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grain filling; Growth rate; Logistic model; Protein profile; Water stress. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000200011 |
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| Gurgel,Fábio de Lima; Laviola,Bruno Galvêas; Silva,Daniel Medeiros da; Kobayashi,Adilson Kenji; Rosado,Tatiana Barbosa. |
| Phenological studies on three morphologically distinct accessions of physic nut (Jatropha curcas L.) were conducted in the Brazilian Savannah biome. Plant growth rate, flowering, fruit formation and development were measured in order to establish appropriate management practices for increasing productivity. The accessions CNPAE-102 (toxic and susceptible to powdery mildew), CNPAE-169 (non-toxic and susceptible to powdery mildew) and CNPAE-259 (toxic and resistant to powdery mildew) were studied. Accessions with undetectable levels of phorbol ester in the grains were considered as non-toxic. The agronomic variables (plant height, number of inflorescences, number of green and ripe fruits per plant) from each accession were measured biweekly during one year... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth rate; Flowering; Fruiting; Temperature. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000600012 |
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| Puiatti,Guilherme Alves; Cecon,Paulo Roberto; Nascimento,Moysés; Nascimento,Ana Carolina Campana; Carneiro,Antônio Policarpo Souza; Silva,Fabyano Fonseca e; Puiatti,Mário; Cruz,Cosme Damião. |
| ABSTRACT: The objective of this study was to adjust nonlinear quantile regression models for the study of dry matter accumulation in garlic plants over time, and to compare them to models fitted by the ordinary least squares method. The total dry matter of nine garlic accessions belonging to the Vegetable Germplasm Bank of Universidade Federal de Viçosa (BGH/UFV) was measured in four stages (60, 90, 120 and 150 days after planting), and those values were used for the nonlinear regression models fitting. For each accession, there was an adjustment of one model of quantile regression (τ=0.5) and one based on the least squares method. The nonlinear regression model fitted was the Logistic. The Akaike Information Criterion was used to evaluate the goodness of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Quantile regression; Nonlinear regression; Allium sativum L.; Growth rate; Cluster analysis.. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000100203 |
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| Gómez Martínez, Procoro. |
| Pinus patula Schiede ex Schltdl. et. Cham., es una especie nativa de México ampliamente utilizada en plantaciones comerciales en diferentes regiones del mundo; la especie ha sido mejorada en el extranjero, y es necesario evaluar el material al ser reintroducido a su país de origen. Se comparó el crecimiento de 36 familias de medios hermanos seleccionadas en Colombia y Sudáfrica, reintroducidas en México (grupo R) y 36 familias de medios hermanos escogidas fenotípicamente en rodales naturales (grupo N), en dos sitios con ambientes contrastantes: Aquixtla, Puebla, a 2,930 m (S1) y Acaxochitlán, Hidalgo, a 2,260 m (S2). Se midió el diámetro normal, la altura total y el volumen del fuste a los siete y ocho años de edad, y la conformación del árbol y el número... |
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Palavras-chave: Análisis de estabilidad; Correlación genética tipo B; Crecimiento; Ganancia genética; Heredabilidad; IGA; Parámetros genéticos; Pinus patula; Progenies; Reintroducción; Adaptation; Ecovalence; Genetic stability; Genetic gain; Genetic parameters; Growth rate; GEI; Heritability; Progeny test; Type-B genetic correlation; Reintroduction; Forestal; Maestría. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/1892 |
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| Registros recuperados: 90 | |
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