Selection Efficiency
Mostrando 25-36 de 661 artigos, teses e dissertações.
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25. Estimation of genetic parameters for weight traits and Kleiber Index in a Brahman cattle population
ABSTRACT: Interest in improving feed efficiency of cattle has been increasing. The residual feed intake (RFI), the most commonly used measurement of feed efficiency, is expensive and can only be used in a small number of animals. The Kleiber Index has also been proposed to measure RFI. In this study, we estimated genetic parameters for the Kleiber Index aver
Sci. agric. (Piracicaba, Braz.). Publicado em: 30/05/2019
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26. Seleção de carvões ativados para adsorção de microcistinas
RESUMO A presença das cianobactérias é uma das grandes preocupações para o tratamento de água, uma vez que esses microrganismos podem ser produtores de metabólitos tóxicos, como as microcistinas (MCs), que não são efetivamente removidas no tratamento usualmente empregado de ciclo completo. Para a remoção dessas toxinas, pode-se, de forma compleme
Eng. Sanit. Ambient.. Publicado em: 30/05/2019
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27. Triple categorical regression for genomic selection: application to cassava breeding
ABSTRACT: Genome-wide selection (GWS) is currently a technique of great importance in plant breeding, since it improves efficiency of genetic evaluations by increasing genetic gains. The process is based on genomic estimated breeding values (GEBVs) obtained through phenotypic and dense marker genomic information. In this context, GEBVs of N individuals are c
Sci. agric. (Piracicaba, Braz.). Publicado em: 20/05/2019
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28. Sampling Alternatives for Eucalyptus Trees in Integrated Crop-Livestock-Forest System
ABSTRACT The aim of this paper was to compare methods and sampling procedures applied to eucalyptus grown under different spatial arrangements in an integrated crop-livestock-forest system (ICLF). The study was carried out in Sinop county, Mato Grosso state, Brazil. Arrangements combining fixed and variable area methods to simple random and systematic sampli
Floresta Ambient.. Publicado em: 13/05/2019
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29. Recurrent selection in common bean aiming at resistance to white mold in a greenhouse
Abstract The objectives of this study were to estimate the genetic progress of mass selection for white mold resistance in common bean, evaluated in a greenhouse in cycle XII of recurrent selection (900 S0 plants), and compare it with field selection in previous cycles. In addition, progress was compared with microsatellite marker-assisted selection (MAS) am
Crop Breed. Appl. Biotechnol.. Publicado em: 11/04/2019
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30. SNP markers associated with soybean partial resistance to Phytophthora sojae
Abstract Phytophthora root and stem rot is one of the most aggressive diseases in soybean crop. The use of resistant cultivars is the main strategy to reduce losses caused by the pathogen. This study aims to identify SNP markers associated with genes or QTLs that provide soybean with partial resistance to Phytophthora sojae. A total of 169 soybean cultivars
Crop Breed. Appl. Biotechnol.. Publicado em: 11/04/2019
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31. Selection of maize top-crosses for different nitrogen levels through specific combining ability
ABSTRACT An alternative to increase yield without raising the production costs and minimizing the dependence of agricultural inputs is the development of maize genotypes presenting high nitrogen (N) use efficiency under low N level conditions. Thus, the objective of this study was to estimate the specific combining ability of maize top-crosses under high and
Bragantia. Publicado em: 04/04/2019
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32. Avaliação do uso de argilas montmorilonitas modificadas na adsorção de nitrato em meio aquoso
RESUMO Este estudo investigou a eficiência da remoção de nitrato em meio aquoso usando adsorção em argilas montmorilonitas comerciais, comparativamente a uma resina aniônica comumente usada nessa operação. Algumas dessas argilas foram intercaladas como o íon hexadeciltrimetilamônio para avaliação. Áreas superficiais específicas, capacidades de
Eng. Sanit. Ambient.. Publicado em: 21/03/2019
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33. Combustibility behavior of PCI coals, green petroleum coke and charcoal fines used as fuel for injection into blast furnace tuyeres
Abstract Pulverized coal injection (PCI) into blast furnace tuyeres is widely used by integrated steel mills worldwide to reduce the consumption of coke and costs. High injection rates are desirable. The big challenge is to achieve them with cheaper and lower quality raw materials, without losing the quality of the hot metal and the productivity of the blast
REM, Int. Eng. J.. Publicado em: 2019-03
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34. Genotypic performance, adaptability and stability in special types of irrigated rice using mixed models
RESUMO É crescente a demanda por tipos especiais de arroz que apresentem, por exemplo, pericarpo preto ou vermelho, baixa amilose (subespécie japonica) ou aromático. No entanto, demandam de intenso processo de melhoramento genético para obtenção e indicação de novas cultivares promissoras geneticamente e adaptadas aos ambientes de cultivo. Neste sent
Rev. Ciênc. Agron.. Publicado em: 2019-03
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35. Selection index based on phenotypic and genotypic values predicted by REML/BLUP in Papaya
Resumo A seleção de genótipos superiores com base na resposta simultânea à diferentes caracteres é uma estratégia fundamental no melhoramento de plantas. Neste estudo objetivou-se comparar a eficiência de quatro índices de seleção construídos a partir de valores fenotípicos e genotípicos, em uma população segregante da cultivar Rubi Incaper
Rev. Bras. Frutic.. Publicado em: 31/01/2019
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36. Development and selection of super-sweet corn genotypes (sh2) through multivariate approaches
ABSTRACT The aim of the present study was to investigate relations among ten traits in super-sweet corn genotypes assessed by means of simple correlation, path and canonical variable analyses, as well as to investigate the relative importance of such traits to the super-sweet corn breeding program developed at Darcy Ribeiro Northern Fluminense State Universi
Bragantia. Publicado em: 25/10/2018