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	Provedor de dados ArchiMer (1) Bragantia (1) Scientia Agricola (1) PAB (1) Autor Bagliniere, Jean-luc (1) Bernardi,Alberto Carlos de Campos (1) Bettiol,Giovana Maranhão (1) Evanno, Guillaume (1) Grego,Célia Regina (1) Guyomard, Rene (1) Hu,Wei (1) Inamasu,Ricardo Yassushi (1) Mazzuco,Giulia Guillen (1) Nikolic, Natacha (1) Perrier, Charles (1) Rabello,Ladislau Marcelino (1) Reichardt,Klaus (1) Santos,Karoline Eduarda Lima (1) Shao,Ming An (1) Topp,George Clarke (1) Tupy,Oscar (1) Vieira,Sidney Rose (1) Wang,Quan Jiu (1) Mais... Palavra-chave Temporal stability (4) Coefficient of variation (1) Conservation (1) Correlation length (1) Economic return (1) Geostatistics (1) Management zones (1) Population genetics (1) Salmo salar (1) Semivariogram (1) Soil electrical conductivity (1) Stocking (1) Surface soil moisture (1) TDR (1) Yield maps (1) Zea mays (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Text (1) Ano 2018 (1) 2013 (1) 2008 (2) País Brazil (3) France (1) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Analyzing spatial and temporal variability of soil water content Bragantia Vieira,Sidney Rose; Grego,Célia Regina; Topp,George Clarke. During the last two decades geoestatistical methods have been intensively used for in-depth descriptions of spatial variability. The objective of this study was to assess the spatial and temporal variability of soil water content. The measurements were taken with a TDR equipment to a 20 cm depth, in a nearly flat 1.2 ha field at the Central Experimental Farm of the Agriculture Canada, Ottawa. The soil classified as a Rideau soil series, is a clay loam soil. A square grid with 10 m spacing was laid out, resulting in 164 sampling points at which two TDR rods were installed to measure the water content down to 20 cm depth. Measurements were taken on 33 dates during the frost free months in 1987, 1988 and 1989. The spatial variability was analyzed examining... Tipo: Info:eu-repo/semantics/article Palavras-chave: TDR; Temporal stability; Semivariogram; Geostatistics. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052008000200022 Changes in the genetic structure of Atlantic salmon populations over four decades reveal substantial impacts of stocking and potential resiliency ArchiMer Perrier, Charles; Guyomard, Rene; Bagliniere, Jean-luc; Nikolic, Natacha; Evanno, Guillaume. While the stocking of captive-bred fish has been occurring for decades and has had substantial immediate genetic and evolutionary impacts on wild populations, its long-term consequences have only been weakly investigated. Here, we conducted a spatiotemporal analysis of 1428 Atlantic salmon sampled from 1965 to 2006 in 25 populations throughout France to investigate the influence of stocking on the neutral genetic structure in wild Atlantic salmon (Salmo salar) populations. On the basis of the analysis of 11 microsatellite loci, we found that the overall genetic structure among populations dramatically decreased over the period studied. Admixture rates among populations were highly variable, ranging from a nearly undetectable contribution from donor stocks... Tipo: Text Palavras-chave: Conservation; Population genetics; Salmo salar; Stocking; Temporal stability. Ano: 2013 URL: http://archimer.ifremer.fr/doc/00141/25271/23328.pdf Mapping of yield, economic return, soil electrical conductivity, and management zones of irrigated corn for silage PAB Bernardi,Alberto Carlos de Campos; Tupy,Oscar; Santos,Karoline Eduarda Lima; Mazzuco,Giulia Guillen; Bettiol,Giovana Maranhão; Rabello,Ladislau Marcelino; Inamasu,Ricardo Yassushi. Abstract: The objective of this work was to evaluate the spatial and temporal variability of the dry matter yield of irrigated corn for silage, as well as its economic return. The study was conducted in an irrigated silage corn field of 18.9 ha in the municipality of São Carlos, in the state of São Paulo, Brazil. The spatial variability of the yield of three crop seasons, normalized yield indexes, production cost, profit, and soil electrical conductivity (EC) were modeled using semivariograms. Yield maps were obtained by kriging, and management zones were mapped based on average yield, normalized index, and EC. The results showed a structured spatial variability of corn yield, production cost, profit, and soil EC within the irrigated area. The adopted... Tipo: Info:eu-repo/semantics/article Palavras-chave: Zea mays; Economic return; Management zones; Soil electrical conductivity; Temporal stability; Yield maps. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001201289 Soil water content temporal-spatial variability of the surface layer of a Loess Plateau hillside in China Scientia Agricola Hu,Wei; Shao,Ming An; Wang,Quan Jiu; Reichardt,Klaus. Surface soil moisture exhibits an important variability in terms of spatial and temporal domains, which may result in critical uncertainties for agricultural water management. The purposes of this study were (i) to characterize the temporal dynamics and stability of the spatial variability of the surface 0-6 cm soil water content θon a hill-slope; (ii) to investigate issues related to soil moisture conditions including dominating factors on soil moisture and to the estimation of the mean θ. During a period of more than one month θwas measured on thirteen days by Frequency Domain Reflectometry using a 10 x 10 m grid of measurement points covering a 60 x 280 m domain within a hill-slope of the Loess Plateau in China. Soil water content exhibited a moderate... Tipo: Info:eu-repo/semantics/article Palavras-chave: Surface soil moisture; Coefficient of variation; Correlation length; Temporal stability. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000300008 Registros recuperados: 4 Primeira ... 1 ... Última

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