Path analysis under multicollinearity in soybean

Detalhes bibliográficos
Autor(a) principal: Bizeti,Henrique Stoco
Data de Publicação: 2004
Outros Autores: Carvalho,Claudio Guilherme Portela de, Souza,José Roberto Pinto de, Destro,Deonisio
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Archives of Biology and Technology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000500001
Resumo: This study aimed to establish the phenotypic correlations among several soybean traits with grain yield in direct and indirect effects using path analysis, and to compare alternative methods for minimizing the adverse effects of multicollinearity in estimating path coefficients. The experiment was conducted in greenhouse in a randomized complete block design with four replications. Nine soybean genotypes belonging to three seed size categories were used. The correlation studies and the path analysis showed that the seed size was not important for increased yield. The number of nodes and plant height at maturity showed significant correlation with grain yield. Using the least square methodology, the results obtained by path analysis under multicollinearity were not satisfactory. The ridge path analysis and the trait culling were efficient in reducing the adverse effects of multicollinearity. Both methods showed that only the number of nodes at maturity trait had a high direct effect on grain yield per plant.
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spelling Path analysis under multicollinearity in soybeangenetic breedingGlycine maxgrain yieldseed sizeroot and canopy traitsThis study aimed to establish the phenotypic correlations among several soybean traits with grain yield in direct and indirect effects using path analysis, and to compare alternative methods for minimizing the adverse effects of multicollinearity in estimating path coefficients. The experiment was conducted in greenhouse in a randomized complete block design with four replications. Nine soybean genotypes belonging to three seed size categories were used. The correlation studies and the path analysis showed that the seed size was not important for increased yield. The number of nodes and plant height at maturity showed significant correlation with grain yield. Using the least square methodology, the results obtained by path analysis under multicollinearity were not satisfactory. The ridge path analysis and the trait culling were efficient in reducing the adverse effects of multicollinearity. Both methods showed that only the number of nodes at maturity trait had a high direct effect on grain yield per plant.Instituto de Tecnologia do Paraná - Tecpar2004-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000500001Brazilian Archives of Biology and Technology v.47 n.5 2004reponame:Brazilian Archives of Biology and Technologyinstname:Instituto de Tecnologia do Paraná (Tecpar)instacron:TECPAR10.1590/S1516-89132004000500001info:eu-repo/semantics/openAccessBizeti,Henrique StocoCarvalho,Claudio Guilherme Portela deSouza,José Roberto Pinto deDestro,Deonisioeng2004-11-23T00:00:00Zoai:scielo:S1516-89132004000500001Revistahttps://www.scielo.br/j/babt/https://old.scielo.br/oai/scielo-oai.phpbabt@tecpar.br||babt@tecpar.br1678-43241516-8913opendoar:2004-11-23T00:00Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar)false
dc.title.none.fl_str_mv Path analysis under multicollinearity in soybean
title Path analysis under multicollinearity in soybean
spellingShingle Path analysis under multicollinearity in soybean
Bizeti,Henrique Stoco
genetic breeding
Glycine max
grain yield
seed size
root and canopy traits
title_short Path analysis under multicollinearity in soybean
title_full Path analysis under multicollinearity in soybean
title_fullStr Path analysis under multicollinearity in soybean
title_full_unstemmed Path analysis under multicollinearity in soybean
title_sort Path analysis under multicollinearity in soybean
author Bizeti,Henrique Stoco
author_facet Bizeti,Henrique Stoco
Carvalho,Claudio Guilherme Portela de
Souza,José Roberto Pinto de
Destro,Deonisio
author_role author
author2 Carvalho,Claudio Guilherme Portela de
Souza,José Roberto Pinto de
Destro,Deonisio
author2_role author
author
author
dc.contributor.author.fl_str_mv Bizeti,Henrique Stoco
Carvalho,Claudio Guilherme Portela de
Souza,José Roberto Pinto de
Destro,Deonisio
dc.subject.por.fl_str_mv genetic breeding
Glycine max
grain yield
seed size
root and canopy traits
topic genetic breeding
Glycine max
grain yield
seed size
root and canopy traits
description This study aimed to establish the phenotypic correlations among several soybean traits with grain yield in direct and indirect effects using path analysis, and to compare alternative methods for minimizing the adverse effects of multicollinearity in estimating path coefficients. The experiment was conducted in greenhouse in a randomized complete block design with four replications. Nine soybean genotypes belonging to three seed size categories were used. The correlation studies and the path analysis showed that the seed size was not important for increased yield. The number of nodes and plant height at maturity showed significant correlation with grain yield. Using the least square methodology, the results obtained by path analysis under multicollinearity were not satisfactory. The ridge path analysis and the trait culling were efficient in reducing the adverse effects of multicollinearity. Both methods showed that only the number of nodes at maturity trait had a high direct effect on grain yield per plant.
publishDate 2004
dc.date.none.fl_str_mv 2004-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000500001
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000500001
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-89132004000500001
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto de Tecnologia do Paraná - Tecpar
publisher.none.fl_str_mv Instituto de Tecnologia do Paraná - Tecpar
dc.source.none.fl_str_mv Brazilian Archives of Biology and Technology v.47 n.5 2004
reponame:Brazilian Archives of Biology and Technology
instname:Instituto de Tecnologia do Paraná (Tecpar)
instacron:TECPAR
instname_str Instituto de Tecnologia do Paraná (Tecpar)
instacron_str TECPAR
institution TECPAR
reponame_str Brazilian Archives of Biology and Technology
collection Brazilian Archives of Biology and Technology
repository.name.fl_str_mv Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar)
repository.mail.fl_str_mv babt@tecpar.br||babt@tecpar.br
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