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| Ambrósio,Moisés; Viana,Alexandre Pio; Ribeiro,Rodrigo Moreira; Preisigke,Sandra Costa; Cavalcante,Natan Ramos; Silva,Flavia Alves da; Torres,Géssica Xavier; Sousa,Carlos Misael Bezerra de. |
| ABSTRACT: The purpose of this study was to conduct selection, genetic parameter estimation, and prediction of genetic values for 18 S1 families of guava trees using mixed model methodology and simultaneous selection of traits by means of the additive selection index, multiplicative selection index, and mean rank adapted from Mulamba. All families analyzed were obtained by means of self-fertilization of superior genotypes (full siblings) from the genetic breeding program of guava trees at the Universidade Estadual do Norte Fluminense. An experimental randomized block design with 18 S1 families, three replicates, and ten plants per plot was used. A total of 540 genotypes (individual plants) of guava tree were evaluated. Genetic parameter estimation and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Inbreeding; Guava tree; Mixed models; Breeding. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000201101 |
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| Silva,Flavia Alves da; Correa,Caio Cezar Guedes; Carvalho,Beatriz Murizini; Viana,Alexandre Pio; Preisigke,Sandra da Costa; Amaral Júnior,Antônio Teixeira do. |
| ABSTRACT: Multicollinearity is a very common problem in studies that employ path analysis in agronomic crops, which generates unrealistic results and erroneous interpretations. This study was aimed at assessing the path analysis in data obtained from guava tree full-sib based on modelling multiple regressions applying latent variables to neutralize the effects of multicollinearity. Seven explanatory variables were measured – fruit mass (FM), fruit length (FL), fruit diameter (FD), mesocarp thickness (MT), peel thickness (PT), pulp mass (PM), total number of fruits (NTF) –, plus the main dependent variable, total yield per plant (YIELD). In accordance with the multicollinearity scenario, eleven values were tested with the addition of the constant K to the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: SEM methodology; Trail crest; Correlation. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000200501 |
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