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Registros recuperados: 15 | |
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OLIVEIRA,RONE B. DE; ANTUNIASSI,ULISSES R.; GANDOLFO,MARCO A.. |
This study defined the main adjuvant characteristics that may influence or help to understand drift formation process in the agricultural spraying. It was evaluated 33 aqueous solutions from combinations of various adjuvants and concentrations. Then, drifting was quantified by means of wind tunnel; and variables such as percentage of droplets smaller than 50 μm (V50), 100 μm (V100), diameter of mean volume (DMV), droplet diameter composing 10% of the sprayed volume (DV0.1), viscosity, density and surface tension. Assays were performed in triplicate, using Teejet XR8003 flat fan nozzles at 200 kPa (medium size droplets). Spray solutions were stained with Brilliant Blue Dye at 0.6% (m/ v). DMV, V100, viscosity cause most influence on drift hazardous.... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Droplet size; Wind tunnel; Experimental methods; Correlations; Multivariate analysis. |
Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162015000100109 |
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Xavier,Larissa Fernanda S; Pestana,Jéssica Kelly; Sekiya,Alline; Krause,Matheus D; Moreira,Rosângela Maria P; Ferreira,Josué M. |
ABSTRACT The aims of this study were to determine the potential of S4 super sweet corn inbred lines for hybrid synthesis, identify the predominant types of gene action and correlations among different traits, significant for breeding programs. The 81 hybrids obtained from a partial diallel 9x9 and three checks were evaluated. A complete randomized block design, with three replicates, and two sowing seasons was used. We could notice significant hybrid effects, general combining ability (GCA) of GI and GII groups and specific combining ability (SCA) in relation to evaluated traits, highlighting the existence of hybrids with superior performance and the expression of additive and non-additive effects. The inbred lines: L1, L3, L6 and L9 (GI) and L1’, L7’ and... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays var. saccharata; Combining ability; Correlations. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362019000300278 |
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Babut, M.; Miege, C.; Villeneuve, B.; Abarnou, Alain; Duchemin, J.; Marchand, P.; Narbonne, J. F.. |
Among the numerous PCB congeners, most of the dioxin-like PCBs (DL-PCBs) need to be characterized by hyphenated techniques. It has been shown in several instances that these congeners are well related to the total PCB content in fish. We examined datasets collected mainly in France, on freshwater and marine fish and sediments. A statistical model linking DL- and indicator PCBs was developed for a dataset composed of freshwater fishes, and proved to predict well DL-PCBs from indicator PCBs in all other fish sets, including marine ones. Type II error rates remained low in almost all fish sets. A similar correlation was observed in sediments. Non-dioxin-like PCBs elicit various adverse effects and represent 95% of the total PCBs. A European guideline for them... |
Tipo: Text |
Palavras-chave: Sediment; Fish; Correlations; Indicator PCB; Dioxin like PCB. |
Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-6979.pdf |
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De Verdal, Hugues; Vandeputte, Marc; Mekkawy, Wagdy; Chatain, Beatrice; Benzie, John A. H.. |
Background: Improving feed efficiency in fish is crucial at the economic, social and environmental levels with respect to developing a more sustainable aquaculture. The important contribution of genetic improvement to achieve this goal has been hampered by the lack of accurate basic information on the genetic parameters of feed efficiency in fish. We used video assessment of feed intake on individual fish reared in groups to estimate the genetic parameters of six growth traits, feed intake, feed conversion ratio (FCR) and residual feed intake in 40 pedigreed families of the GIFT strain of Nile tilapia, Oreochromis niloticus. Feed intake and growth were measured on juvenile fish (22.4g mean body weight) during 13 consecutive meals, representing 7days of... |
Tipo: Text |
Palavras-chave: Feed conversion ratio; Tilapia; Heritability; Genetic estimations; Correlations. |
Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00469/58115/60551.pdf |
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Jagt-Yazykova, E.A.. |
Both faunal endemicity and provincialism in the mid- and Late Cretaceous of the Pacific realm complicate the recognition of stage boundaries in that area. Correlations with other areas (e.g., Europe, United States Western Interior, Pacific coast of North and South America) therefore have to rely solely on event stratigraphy; not only extinctions, but all biotic events must be considered. During the Cretaceous, Pacific faunas were characterised not so much by the presence of typical ‘Boreal’ assemblages, but rather by the absence or extreme paucity of other widely distributed biota. Clearly, faunal similarities depended more on regional facies development than on their spatial distribution. The regional diversity curve reflects all global mass extinctions,... |
Tipo: Article / Letter to the editor |
Palavras-chave: Ammonoides; Cretaceous; Palaeobiogeography; Palaeobiology; Correlations; Russian Pacific; 38.22; 42.73. |
Ano: 2011 |
URL: http://www.repository.naturalis.nl/record/428480 |
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Protásio, Thiago de Paula; Santana, João de Deus Pereira de; Guimarães Neto, Rosalvo Maciel; Guimarães Júnior, José Benedito; Trugilho, Paulo Fernando; Ribeiro, Ioleide Bispo. |
This work aimed to verify the influence of the sampling longitudinal position in Qualea parviflora Mart. in the quality of charcoal and the statistical relation among the variables measured in this biofuel. Five trees were evaluated. In each one, 5 cm – thickness discs were obtained in the base, DBH (1.30 m), middle and top. The wood was carbonized in a muffle furnace, considering a heating rate of 1.67 ºC min-1. The yields in charcoal pyroligneous extract, in non-condensable gases and in fixed carbon and volatile matters, fixed carbon and ash contents, besides relative apparent density of the charcoal were determined. In the evaluation of the experiment, an entirely randomized design was used with five repetitions, being different sampling position... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pyrolysis; Correlations; Sampling; Models. |
Ano: 2011 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/276 |
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Santos,Paulo Ricardo dos; Preisigke,Sandra da Costa; Viana,Alexandre Pio; Cavalcante,Natan Ramos; Sousa,Carlos Misael Bezerra de; Amaral Júnior,Antônio Teixeira de. |
Abstract: The objective of this work was to estimate the genetic parameters and to evaluate the associations between vegetative and yield characteristics, in full-sib progenies of guava tree (Psidium guajava). The following characteristics were evaluated: yield per plant, number of fruits, fruit mass, plant height, stem diameter, and canopy volume. The estimation of genetic parameters was obtained by the REML/Blup procedure. Based on the breeding values predicted by Blup, the genetic and canonical correlations were estimated, and the genetic correlation coefficients were unfolded into direct and indirect effects on the character yield per plant using path analysis. Genetic variability was estimated for number of fruits (567.66) and yield per plant... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Psidium guajava; Correlations; Path analysis; REML/Blup.. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000500303 |
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Mehmood,W; Zhang,C. |
ABSTRACT The current study was conducted to develop the correlations between muscle fiber characteristics and meat quality attributes in the biceps femoris muscle of Arbor Acres (AA) and Yellow-feathered chicken (YFC). A total of fourty pure breed birds of AA (n=20) and YFC (n=20) were used in the experiment. After slaughtering at their respective market age of slaughtering: AA 40 d and YFC 120 d, samples were collected for meat quality attributes and myosin ATPase staining for fiber types analyses. Meat quality attributes and muscle fiber characteristics i-e; diameter, cross-sectional area (CSA) and density of AA were significantly different from the YFC (p<0.05). Type I fibers number percentage was significantly higher in YFC than AA, whereas CSA and... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Muscle fibers; Arbor Acres; Yellow-feathered chicken; Meat quality; Correlations. |
Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000400300 |
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Moreira,Sarah Ola; Kuhlcamp,Karin Tesch; Barros,Fabíola Lacerda de Souza; Oliveira,Sabrina Batista de; Trindade,Roberto dos Santos. |
Abstract Correlations and path analysis allow the understanding of the interrelations between characteristics of interest to the plant breeding. However, in order for their results to be reliable, the undesirable effect of multicollinearity must be excluded. The objective of this study was to estimate the correlations and their partitioning in direct and indirect effects, by path analysis, on the fruit production per plant (FP) of papaya from the heterotic Solo and Formosa groups, using two different strategies to circumvent multicollinearity. Eleven agronomic variables were evaluated in twelve papaya genotypes from the Solo group and nine from the Formosa group. Path analysis was obtained with the FP as the basic variable and to eliminate... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carica papaya L.; Ridge path analysis; Indirect selection; Correlations. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000300802 |
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McManus,Concepta; Pinto,Bruno Freitas; Martins,Rafhael Felipe Saraiva; Louvandini,Helder; Paiva,Samuel Rezende; Braccini Neto,José; Paim,Tiago do Prado. |
Three production systems for sheep (Low - L, Medium - M and High - H technology), with increasing technological levels, were studied under conditions in the Center-west of Brazil, to determine economic weights and selection indices of important traits. Receipts and costs were simulated using an economic simulator to calculate the structure of the operational costs. Only characteristics that were responsible for more than 10% of the profit were studied, which included: number of weaned lambs, food consumption (ewe and lamb), weight of carcass and weight of female lambs sold for reproduction. Regardless of the index used (profitability or yield) or system (L, M or H), the economic weights are larger for the number of lambs weaned per ewe. With improvement in... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Correlations; Costs; Heritability; Profit; Revenue. |
Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001200014 |
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Registros recuperados: 15 | |
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