Genotype By Environment Interaction
Mostrando 25-36 de 100 artigos, teses e dissertações.
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25. Imputação múltipla: comparação e eficiência em experimentos multiambientais / Multiple Imputations: comparison and efficiency of multi-environmental trials
In trials of genotypes by environment, the presence of absent values is common, due to the quantity of insufficiency of genotype application, making difficult for example, the process of recommendation of more productive genotypes, because for the application of the majority of the multivariate statistical techniques, a complete data matrix is required. Thus
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/07/2012
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26. Analyzing genotype-by-environment interaction using curvilinear regression
In the context of multi-environment trials, where a series of experiments is conducted across different environmental conditions, the analysis of the structure of genotype-by-environment interaction is an important topic. This paper presents a generalization of the joint regression analysis for the cases where the response (e.g. yield) is not linear across e
Sci. agric. (Piracicaba, Braz.). Publicado em: 2012-12
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27. Genotype by environment interaction in different birth seasons for weight at 240, 365 and 450 days of age in Tabapuã cattle
The objective of this study was to evaluate the effect of genotype by environment interaction (GEI) on the weight of Tabapuã cattle at 240 (W240), 365 (W365) and 450 (W450) days of age. In total, 35,732 records of 8,458 Tabapuã animals which were born in the state of Bahia, Brazil, from 1975 to 2001, from 167 sires and 3,707 dams, were used. Two birth seas
R. Bras. Zootec.. Publicado em: 2012-10
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28. Epistasia para a produção de grãos e caracteres da planta em milho / Epistasis for yield and plant traits in maize
It is known that epistasis may have important effects in the populations dynamics and in the evolutionary process of the species, and that it is involved in manifestation of important biological phenomena, such as overdominance, inbreeding depression and heterosis. However, epistasis is considered one of the more complex aspects of quantitative genetics sinc
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/12/2011
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29. Sensibilidade de valores genéticos às modificações de níveis de proteína das dietas e avaliação de carcaça de codornas de corte em crescimento / Sensibility of genetic values to modifications of diet protein levels and the evaluation of meat quail carcass in growth
The objective of this study was to investigate the presence of genotype X dietary protein level, by reaction norm models, on the period of growth and evaluate the performance of two strains of quails belonging to Breeding Program Poultry of the Federal University of Viçosa. Body weights were evaluated at 21, 35 and 42 days of age, with levels 24 to 33% crud
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/11/2011
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30. Interação genótipo-ambiente em bovinos de corte compostos / Genotype-environment interaction in composite beef cattle
Objetivou-se com o presente estudo foram caracterizar e definir ambientes homogêneos de produção de bovinos de corte compostos no Brasil com relação às variáveis climáticas e geográficas, utilizando técnicas exploratórias multivariadas. Verificar a presença de interação genótipo-ambiente (GxE) nas características peso ao nascimento (PN), peso
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/07/2011
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31. Fotossíntese, crescimento e composição química em plantas de Theobroma cacao L. submetidas a diferentes concentrações de silicato de potássio e sua interação com insetos-praga / Photosynthesis, growth and chemical composition in plants of Theobroma cacao L. subjected to different concentrations of potassium silicate and its interaction with insect-pests
The control of insect pests through the use of pesticides, is still the most method used in the cultivation of cocoa. However, due to environmental issues, there need to seek new alternatives of control less harmful the environment and to humans. In this context, silicon is a nutrient that is being used in various cultures, due to its beneficial effects on p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/02/2011
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32. Genotype by environment interaction in Nelore cattle from five Brazilian states
Records from 75,941 Nelore cattle were used to determine the importance of genotype by environment interaction (GEI) in five Brazilian states. (Co)variance components were estimated by single-trait analysis (with yearling weight, W450, considered to be the same trait in all states) and multiple-trait analysis (with the record from each state considered to be
Genetics and Molecular Biology. Publicado em: 08/07/2011
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33. Cooking time of black beans genotypes evaluated in different environments.
Lines developed by breeding programs are expected to have improved agronomical characteristics, good culinary quality such as environment affected cooking time. Since the final quality tests of black bean lines from the Rice and Beans Research Center breeding program are carried out in a great number of environments. it is possible to determine the cooking t
Annual Report of the Bean Improvement Cooperative. Publicado em: 2011
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34. Obesidade e câncer de tiróide : em busca de uma ligação / Obesity and cancer thyroid : in search of a connection
Obesity is a complex, multifactorial disease that develops from the interaction between genotype and environment. It may be defined as a syndrome characterized by an increase in body fat storage and its prevalence has increased dramatically in industrialized and developing nations. There are several reasons for medical concern regarding overweight and obesit
Publicado em: 2011
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35. Avaliação de híbridos de milho e estratificação ambiental pelos métodos AMMI e GGE biplot
O objetivo desse trabalho foi avaliar a estabilidade, adaptabilidade e estratificação ambiental, por meio dos métodos AMMI (Additive Main Effects and Multiplicative Interaction Analysis) e GGE (Genotype and Genotypes by Environment Interaction) biplot e comparar a eficiência destes métodos. Utilizaram-se dados da avaliação de vinte híbridos simples e
Crop Breeding and Applied Biotechnology. Publicado em: 2010-09
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36. Epistasis and genotype-by-environment interaction of grain protein content in durum wheat
Parental, F1, F2, BC1 and BC2 generations of four crosses involving four cultivars of durum wheat (Triticum durum Desf.) were evaluated at two sites in Tunisia. A three-parameter model was found inadequate for all cases except crosses Chili x Cocorit 71 at site Sidi Thabet and Inrat 69 x Karim at both sites. In most cases a digenic epistatic model was suffic
Genetics and Molecular Biology. Publicado em: 2010