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Inheritance of traits related to plant architecture in cowpea/Heranca de caracteres relacionados a arquitetura da planta em feijao-caupi

Filho, Carlos Humberto Aires Matos ; Gomes, Regina Lucia Ferreira ; Filho, Francisco Rodrigues Freire ; Rocha, Maurisrael Moura ; Lopes, Angela Celis de Almeida ; Nunes, Jose Airton Rodrigues

Ciência rural, 2014-04, Vol.44 (4), p.599 [Periódico revisado por pares]

Universidade Federal de Santa Maria

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  • Título:
    Inheritance of traits related to plant architecture in cowpea/Heranca de caracteres relacionados a arquitetura da planta em feijao-caupi
  • Autor: Filho, Carlos Humberto Aires Matos ; Gomes, Regina Lucia Ferreira ; Filho, Francisco Rodrigues Freire ; Rocha, Maurisrael Moura ; Lopes, Angela Celis de Almeida ; Nunes, Jose Airton Rodrigues
  • É parte de: Ciência rural, 2014-04, Vol.44 (4), p.599
  • Descrição: The aim of this study was to investigate the genetic control of traits related to plant architecture in cowpea: length and number of nodes on main stem, growth habit, from the crossings TE96-282-22G x TVX-5058-09C and TE96-282-22G x IT81D-1332. The experiment was conducted at Embrapa MidNorth, Teresina, PI, Brazil, in 2003. Experiments were carried out under randomized block design with four replications. Genetic components of mean and variance and heritability for the traits length and number of nodes on main stem were estimated. Growth habit was based on the frequencies of the phenotypes observed. In both crosses, the additive-dominant genetic model was sufficient to explain the phenotypic variation observed for length and number of nodes on main stem; additive and dominance effects are important in controlling the length and number of nodes on main stem, but the additive variance is prevalent as a component of genetic variance. Length and number of nodes on main stem presents oligogenic control associated with a high expression of trait. Growth habit has monogenic control, with dominance for the indeterminate type.
  • Editor: Universidade Federal de Santa Maria
  • Idioma: Espanhol
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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