Simultaneous genetic selection of progenies of guarana production, adaptability and temporal stability

• Autor(a) principal: Atroch, André Luiz
• Data de Publicação: 2013
• Outros Autores: Filho, Firmino José do Nascimento, Resende, Marcos Deon Vilela de
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista de Ciências Agrárias (Belém. Online)
• Texto Completo: https://ajaes.ufra.edu.br/index.php/ajaes/article/view/901

The simultaneous selection for yield , adaptability and stability can be achieved through the harmonic mean of the relative performance of the predicted values ( MHPRVG ) . The aim of this work was to select sib progenies of guarana as these three attributes , aiming to develop a cultivar . 36 sib progenies of guarana in experimental design of randomized blocks with two replications and six plants per plot , arranged in two rows of three plants spaced 5 × 5 m were evaluated . Intensive cultivation and fertilization were performed as Embrapa . Fruit production of progeny was measured in five consecutive years , from 2006 to 2010 . The genetic value ( μ + g+ gem ) , capitalizing on the average effect of the interaction with harvest years shall not be considered for selection of superior genotypes . The PRVG (stability ) and MHVG (adaptability ) criteria generated similar results for the top five progenies . The MHPRVG generated different criteria for the top five progenies in relation to PRVG MHVG criteria and results . The MHPRVG criterion does not coincide with that based on ( μ + g+ gem ) and is the one best suited to show this experiment to select the best progeny .