Matodo Bulk
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Use of simulation in choosin the number of individuals in the âbulkâ method of breeding self-pollinated. / Emprego da simulaÃÃo na escolha do nÃmero de indivÃduos no mÃtodo "bulk" no melhoramento de plantas autÃgamas
The bulk method to conduct segreganting populations presents as the main limitation the loss of progenies during sampling. Studies to undertand and minimize this limitation are scarce. This study aimed to verify the effect of sampling and natural selection on the bulk method in self-pollinated plants. Many configurations were simulated using the F4 and F24 g
Publicado em: 2009
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2. IncorporaÃÃo da informaÃÃo de parentesco no mÃtodo genealÃgico pelo enfoque de modelos mistos / Using relationship information from pedigree method on mixed model estimation
In the pedigree method it is usually spent an additional effort for recording the genealogies along the generations, that have been attributed little usefulness. This study aimed to evaluate the efficiency of the pedigree method considering the use of relationship among progenies and to compare its performance with the bulk method by computer simulation and
Publicado em: 2006
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3. Componentes da variÃncia fenotÃpica em feijoeiro utilizando o mÃtodo genealÃgico / Phenotypic variance components in beans by the pedigree method.
In the present work the pedigree method was used to estimate the phenotypic variance components for grain yield and plant habit. A segregating population from the cross between BRS TalismÃ, (growing habit III, carioca grain type) and BRS Valente (growing habit II and black grain) was used. Sixty-four plants were randomly sampled from the F2 to generate F2:3
Publicado em: 2005
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4. Selection of superior common bean families with resistance to anthracnose and angular leaf spot. / SeleÃÃo de famÃlias superiores de feijoeiro com resistÃncia a antracnose e mancha-angular.
Na obtenÃÃo de cultivares com resistÃncia mÃltipla à antracnose e mancha angular, outros atributos agronÃmicos tambÃm devem ser considerados. Entre eles, o tipo de grÃo carioca, o porte ereto e a alta produtividade. Neste contexto, o presente trabalho teve como objetivo identificar famÃlias de feijoeiro, conduzidas pelo mÃtodo do Bulk dentro de fam
Publicado em: 2005
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5. Natural selection and the breederâs decision about the best moment to extract families in common bean. / SeleÃÃo natural e a decisÃo do melhorista sobre o melhor momento de abrir o Bulk na cultura do feijoeiro
The âbulkâ method presents some advantages, including the versatility in extracting families at any moment. Theoretically there is no justification in delaying line extraction beyond the F5 generation, but if there is action of natural selection in the direction required by the breeders, a question of whether delaying line extraction would increase the cha
Publicado em: 2003