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Silva,Stefanía Dalmolin da; Streck,Nereu Augusto. |
Este trabalho teve como objetivo calcular e analisar as séries históricas mensais do Índice de Calor (IC) para Santa Maria, RS, Brasil, no período de 1968 a 2011. As variáveis meteorológicas utilizadas neste trabalho foram pressão atmosférica, temperatura do bulbo seco e temperatura do bulbo úmido, no horário das 9h (12UTC), 15h (18UTC) e 21h (00UTC). Foi realizada análise de tendência das séries históricas para o valor absoluto e a média mensais do IC através do teste de Mann-Kendall e análise de regressão linear simples para quantificar a tendência, com nível de significância de 95% (α=0,05). Para o valor máximo, no horário das 15h (18UTC), as séries históricas para os meses de janeiro e abril apresentaram acréscimo no valor do índice de calor na... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Desconforto humano; Mann-Kendall; Saúde humana. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000801360 |
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Langner,Josana Andreia; Streck,Nereu Augusto; Durigon,Angelica; Silva,Stefanía Dalmolin da; Lago,Isabel; Dalmago,Genei Antonio; Reiniger,Lia Rejane Silveira; Scheffel,Lúcio Gabriel; Poersch,Anderson Haas. |
ABSTRACT: The objective of this study was to compare the simulations of leaf appearance of landrace and improved maize cultivars using the CSM-CERES-Maize (linear) and the Wang and Engel models (nonlinear). The coefficients of the models were calibrated using a data set of total leaf number collected in the 11/04/2013 sowing date for the landrace varieties ‘Cinquentinha’ and ‘Bico de Ouro’ and the simple hybrid ‘AS 1573PRO’. For the ‘BRS Planalto’ variety, model coefficients were estimated with data from 12/13/2014 sowing date. Evaluation of the models was with independent data sets collected during the growing seasons of 2013/2014 (Experiment 1) and 2014/2015 (Experiment 2) in Santa Maria, RS, Brazil. Total number of leaves for both landrace and improved... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays L.; Vegetative development; Air temperature; Sowing time; Model. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000100201 |
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Langner,Josana Andreia; Streck,Nereu Augusto; Dalmago,Genei Antonio; Reiniger,Lia Rejane Silveira; Durigon,Angelica; Silva,Stefanía Dalmolin da; Lago,Isabel; Scheffel,Lúcio Gabriel; Poersch,Anderson Haas. |
ABSTRACT: The objective of this study was to determine the maximum development rates for the phases of emergence, vegetative and reproductive, and to test the performance of the Wang and Engel (WE) model for simulating the development of landrace and improved maize cultivars sown on different dates. Model calibration was with data collected from a field experiment with a sowing date on December 13, 2014, and the model was tested with independent data from experiments with five sowing dates (August 20 and November 4, 2013, February 3 and August 15, 2014, and January 7, 2015) in Santa Maria, RS. The experiment was a complete randomized block design with four replicates. The dates of emergence (EM), silking (R1), and physiological maturity (R6) of two... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays L; Modeling; Phenology; Developmental stages. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001001737 |
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