Correlations and path analysis for fruit yield in pepper lines (Capsicum chinense L.)
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.14295/CS.v8i2.1839 http://hdl.handle.net/11449/221072 |
Resumo: | Information regarding the correlation between characters are of great importance to simultaneous traits selection in breeding programs. However, quantification and interpretation of the correlations magnitude do not imply in direct and indirect effects. In this context, the path analysis is presented as an alternative and viable tool for the selection process. The objective of this study was to evaluate the phenotypic, genotypic and environmental correlations between eight major agronomic characters in pepper lines (C. chinense L.) and its consequences in direct and indirect effects by path analysis. Eight agronomic traits were assessed under field conditions in 22 C. chinense L lines. According to the results, there is a genetic variability among the evaluated lines, whose yield per plant (PY) and total number of fruits (NF) variables are highly correlated with high direct effect on pepper lines yield. The selection of pepper lines with high yield can be accomplished through direct selection or using a suitable selection index, being advantageous to select lines with other characteristics, such as appropriate scion height and diameter for conducting manual and mechanized harvesting. The use of the constant k is efficient to reduce the variance of path coefficients, providing better estimation of the effects that affects yield. |
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Correlations and path analysis for fruit yield in pepper lines (Capsicum chinense L.)BreedingIndirect selectionYield componentsInformation regarding the correlation between characters are of great importance to simultaneous traits selection in breeding programs. However, quantification and interpretation of the correlations magnitude do not imply in direct and indirect effects. In this context, the path analysis is presented as an alternative and viable tool for the selection process. The objective of this study was to evaluate the phenotypic, genotypic and environmental correlations between eight major agronomic characters in pepper lines (C. chinense L.) and its consequences in direct and indirect effects by path analysis. Eight agronomic traits were assessed under field conditions in 22 C. chinense L lines. According to the results, there is a genetic variability among the evaluated lines, whose yield per plant (PY) and total number of fruits (NF) variables are highly correlated with high direct effect on pepper lines yield. The selection of pepper lines with high yield can be accomplished through direct selection or using a suitable selection index, being advantageous to select lines with other characteristics, such as appropriate scion height and diameter for conducting manual and mechanized harvesting. The use of the constant k is efficient to reduce the variance of path coefficients, providing better estimation of the effects that affects yield.São Paulo State UniversityFederal University of LavrasFederal Institute of GoiásSão Paulo State UniversityUniversidade Estadual Paulista (UNESP)Federal University of LavrasFederal Institute of GoiásSoares, Renato SilvaDa Silva, Hellismar WaksonDos Santos Candido, Willame [UNESP]Vale, Luís Sérgio Rodrigues2022-04-28T19:08:54Z2022-04-28T19:08:54Z2017-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article247-255http://dx.doi.org/10.14295/CS.v8i2.1839Comunicata Scientiae, v. 8, n. 2, p. 247-255, 2017.2176-9079http://hdl.handle.net/11449/22107210.14295/CS.v8i2.18392-s2.0-85046413390Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengComunicata Scientiaeinfo:eu-repo/semantics/openAccess2022-04-28T19:08:55Zoai:repositorio.unesp.br:11449/221072Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:50:11.434411Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Correlations and path analysis for fruit yield in pepper lines (Capsicum chinense L.) |
title |
Correlations and path analysis for fruit yield in pepper lines (Capsicum chinense L.) |
spellingShingle |
Correlations and path analysis for fruit yield in pepper lines (Capsicum chinense L.) Soares, Renato Silva Breeding Indirect selection Yield components |
title_short |
Correlations and path analysis for fruit yield in pepper lines (Capsicum chinense L.) |
title_full |
Correlations and path analysis for fruit yield in pepper lines (Capsicum chinense L.) |
title_fullStr |
Correlations and path analysis for fruit yield in pepper lines (Capsicum chinense L.) |
title_full_unstemmed |
Correlations and path analysis for fruit yield in pepper lines (Capsicum chinense L.) |
title_sort |
Correlations and path analysis for fruit yield in pepper lines (Capsicum chinense L.) |
author |
Soares, Renato Silva |
author_facet |
Soares, Renato Silva Da Silva, Hellismar Wakson Dos Santos Candido, Willame [UNESP] Vale, Luís Sérgio Rodrigues |
author_role |
author |
author2 |
Da Silva, Hellismar Wakson Dos Santos Candido, Willame [UNESP] Vale, Luís Sérgio Rodrigues |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Federal University of Lavras Federal Institute of Goiás |
dc.contributor.author.fl_str_mv |
Soares, Renato Silva Da Silva, Hellismar Wakson Dos Santos Candido, Willame [UNESP] Vale, Luís Sérgio Rodrigues |
dc.subject.por.fl_str_mv |
Breeding Indirect selection Yield components |
topic |
Breeding Indirect selection Yield components |
description |
Information regarding the correlation between characters are of great importance to simultaneous traits selection in breeding programs. However, quantification and interpretation of the correlations magnitude do not imply in direct and indirect effects. In this context, the path analysis is presented as an alternative and viable tool for the selection process. The objective of this study was to evaluate the phenotypic, genotypic and environmental correlations between eight major agronomic characters in pepper lines (C. chinense L.) and its consequences in direct and indirect effects by path analysis. Eight agronomic traits were assessed under field conditions in 22 C. chinense L lines. According to the results, there is a genetic variability among the evaluated lines, whose yield per plant (PY) and total number of fruits (NF) variables are highly correlated with high direct effect on pepper lines yield. The selection of pepper lines with high yield can be accomplished through direct selection or using a suitable selection index, being advantageous to select lines with other characteristics, such as appropriate scion height and diameter for conducting manual and mechanized harvesting. The use of the constant k is efficient to reduce the variance of path coefficients, providing better estimation of the effects that affects yield. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01 2022-04-28T19:08:54Z 2022-04-28T19:08:54Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.14295/CS.v8i2.1839 Comunicata Scientiae, v. 8, n. 2, p. 247-255, 2017. 2176-9079 http://hdl.handle.net/11449/221072 10.14295/CS.v8i2.1839 2-s2.0-85046413390 |
url |
http://dx.doi.org/10.14295/CS.v8i2.1839 http://hdl.handle.net/11449/221072 |
identifier_str_mv |
Comunicata Scientiae, v. 8, n. 2, p. 247-255, 2017. 2176-9079 10.14295/CS.v8i2.1839 2-s2.0-85046413390 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Comunicata Scientiae |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
247-255 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129256380694528 |