Heritability
Mostrando 13-24 de 482 artigos, teses e dissertações.
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13. Potencial adaptativo de populações de Rhizoctonia solani AG-1 IA associadas ao arroz e à Urochloa brizantha ao estresse térmico
RESUMO Muitos fitopatógenos de ampla distribuição geográfica como os fungos fitopatogênicos do gênero Rhizoctonia, estão sujeitos a extremas flutuações de temperatura em seus habitats. Para sobreviver a tais flutuações térmicas, esses organismos desenvolveram a habilidade de regular seus valores fenotípicos para adaptações térmicas bem como a
Summa phytopathol.. Publicado em: 14/10/2019
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14. Selection gain and interrelations between agronomic traits in wheat F5 genotypes
ABSTRACT This work aimed to estimate the variance components and genetic parameters, the selection gain, and the cause and effect relationships among traits in order to identify important traits for direct and indirect selection of wheat (Triticum aestivum L.) lines. Three strategies were used to obtain selection gains: direct and indirect selection, an inde
Rev. Ceres. Publicado em: 03/10/2019
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15. Phenotypic variance of black oat growing in crop seasons reveals genetic effects predominance
Abstract: This work aimed to determine variance components and genetic parameters, as well as phenotypic, genetic and environmental correlations among black oat (Avena strigosa) families grown in different crop season. Seventy-six black oat families and three controls (BRS Madrugada, BRS Centauro, BRS 139 Neblina) were evaluated in two crop seasons (2016 and
An. Acad. Bras. Ciênc.. Publicado em: 23/09/2019
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16. Genetic parameters, genetic trends, and principal component analysis for productive and reproductive traits of Guzera beef cattle
ABSTRACT The objectives of this study were to estimate genetic parameters and genetic trends and perform principal component analysis for the following traits: body weight adjusted at 210 days of age (W210), one year (W365), and yearling or 450 days of age (W450); weight gain from birth to weaning or 210 days of age (WGBW), from weaning to 365 days of age (W
R. Bras. Zootec.. Publicado em: 12/09/2019
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17. Genetic evaluation models for post-weaning weight gain in a multibreed Angus-Nelore population
Resumo: O objetivo deste trabalho foi identificar o modelo mais adequado para avaliação genética do ganho de peso pós-desmama em uma população multirracial de Angus-Nelore. Foram testados três modelos com uso do método de inferência bayesiana: animal tradicional (M1), animal multirracial sem (M2) e com segregação (M3). A escolha do melhor modelo s
Pesq. agropec. bras.. Publicado em: 29/08/2019
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18. Genetic drift in mammals
Abstract: Genetic drift is the fortuitous occurrence of genetic events that when they become fixed modify the genome of populations. They can take the form of mutations of single nucleotides (SNPs), the insertion or deletion of short sequences (Indels) or the repetitions of short sequences (CNV i.e. copy number variants) or long insertions or deletion (struc
An. Acad. Bras. Ciênc.. Publicado em: 26/08/2019
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19. Genetic parameters, path analysis and indirect selection of agronomic traits of cassava germplasm
Abstract: This study aimed to estimate genetic parameters and correlations between morphological, agronomic and root quality traits of cassava plants, as well as to study cause and effect relationships through path analysis. A total of 814 genotypes were evaluated from 2011 to 2015. The joint analysis of the data was performed by the mixed models approach. T
An. Acad. Bras. Ciênc.. Publicado em: 19/08/2019
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20. Bayesian analysis of growth, stem straightness and branching quality in full-sib families of Eucalyptus globulus
ABSTRACT Eucalyptus globulus is one of the most commonly planted hardwood species for industrial use in various temperate regions around the world. The present study aimed to evaluate 62 full-sib families of E. globulus in one of the southernmost progeny trials of the species in the south of Chile. Estimates of genetic parameters for stem straightness, branc
Bragantia. Publicado em: 08/08/2019
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21. Genetic parameters and selection of sugarcane in early selection stages for resistance to sugarcane borer Diatraea saccharalis
Abstract A T1 (sugarcane population originating from true seeds) and T2 (first sugarcane clonal stage) population were used to estimate genetic parameters and compare selection strategies for Diatraea saccharalis (Lepidoptera: Crambidae) resistance in sugarcane. In the T1 stage, heritability at the family mean level (h²=0.77) was higher than individual geno
Crop Breed. Appl. Biotechnol.. Publicado em: 01/08/2019
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22. Genetic variability and breeding potential of Flintisa Composite of maize in two levels of technology
Abstract The purpose this study was to verify the breeding potential of Flintisa Composite for low (LT) and high (HT) technology of cultivation, and the best selection strategy to be adopted. For this reason half-sib progenies were evaluated in the two technological levels. In HT, it was used basic fertilization, two top dressing and supplementary irrigation
Crop Breed. Appl. Biotechnol.. Publicado em: 01/08/2019
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23. Development of superior lines of papaya from the Formosa group using the pedigree method and REML/Blup procedure
ABSTRACT Developing superior lines based on a simultaneous response from many traits of agronomic importance is a fundamental strategy to expand papaya cultivar supply, mainly the much-needed cultivars belonging to group Formosa. Our goal was to associate the pedigree method with REML/Blup procedure to select plants of progenies F2:3 with superior agronomic
Bragantia. Publicado em: 29/07/2019
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24. Genetic parameters to production characters of palm heart in half-sibs progenies of palm peach
RESUMO: A pupunheira (Bactris gasipaes) é uma palmeira produtora de palmito oriunda da Amazônia, que apresenta sustentabilidade econômica, social e ambiental. Para a obtenção de cultivares melhoradas é necessário a avaliação e seleção de genótipos com características que atendam produtores, processadores e consumidores. Assim, o objetivo deste
Cienc. Rural. Publicado em: 10/07/2019