Estimates of genetic parameters for juvenile traits in macaw palm
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Bragantia |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052021000100226 |
Resumo: | ABSTRACT Acrocomia aculeata (Jacq.) Lodd. ex. Mart. (Arecaceae) is a neotropical oil palm of widespread occurrence in the American continent and with great economic potential for the energy and food sectors. Genetic breeding studies for the species are very recent, with a need for basic knowledge from the genetic diversity in agronomic traits. Thus, the aim of this work was to estimate genetic variance, heritability, and genetic gain as well as to propose strategies of selection. Two-year evaluations of eight agromorphological characteristics were carried out in two experimental fields composed of 50 open-pollinated progenies. The results revealed moderate heritability for progeny average to thorn density in the abaxial side ( = 0.402 in Pindorama) and relative chlorophyll index ( = 0.458 in Presidente Prudente). The selective accuracy was 0.634 and 0.677 for the same traits, respectively. In the combined analysis, the higher values of heritability were obtained to thorn density on the abaxial region of leaves and relative chlorophyll index (0.616 and 0.666, respectively). Moderate to high magnitude values of genetic gain was reached for traits with greatest agronomic interest, as plant height Gs (%) = 19.64, number of leaves Gs (%) = 26.43, stipe diameter at breast height Gs (%) = 12.51, and relative chlorophyll index Gs (%) = 38.12. In conclusion, the results indicate considerable genetic variability for the evaluated traits and suggest that their most effective use for the purpose of genetic gains would be based on the combined selection between and within progenies. |
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Estimates of genetic parameters for juvenile traits in macaw palmoleaginous speciesArecaceaeheritabilityREML/BLUPplant breedingABSTRACT Acrocomia aculeata (Jacq.) Lodd. ex. Mart. (Arecaceae) is a neotropical oil palm of widespread occurrence in the American continent and with great economic potential for the energy and food sectors. Genetic breeding studies for the species are very recent, with a need for basic knowledge from the genetic diversity in agronomic traits. Thus, the aim of this work was to estimate genetic variance, heritability, and genetic gain as well as to propose strategies of selection. Two-year evaluations of eight agromorphological characteristics were carried out in two experimental fields composed of 50 open-pollinated progenies. The results revealed moderate heritability for progeny average to thorn density in the abaxial side ( = 0.402 in Pindorama) and relative chlorophyll index ( = 0.458 in Presidente Prudente). The selective accuracy was 0.634 and 0.677 for the same traits, respectively. In the combined analysis, the higher values of heritability were obtained to thorn density on the abaxial region of leaves and relative chlorophyll index (0.616 and 0.666, respectively). Moderate to high magnitude values of genetic gain was reached for traits with greatest agronomic interest, as plant height Gs (%) = 19.64, number of leaves Gs (%) = 26.43, stipe diameter at breast height Gs (%) = 12.51, and relative chlorophyll index Gs (%) = 38.12. In conclusion, the results indicate considerable genetic variability for the evaluated traits and suggest that their most effective use for the purpose of genetic gains would be based on the combined selection between and within progenies.Instituto Agronômico de Campinas2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052021000100226Bragantia v.80 2021reponame:Bragantiainstname:Instituto Agronômico de Campinas (IAC)instacron:IAC10.1590/1678-4499.20200463info:eu-repo/semantics/openAccessLustri,Elivelton AlvesSiqueira,Walter JoséAzevedo Filho,Joaquim Adelino deVianna,Suelen AlvesColombo,Carlos Augustoeng2021-04-30T00:00:00Zoai:scielo:S0006-87052021000100226Revistahttps://www.scielo.br/j/brag/https://old.scielo.br/oai/scielo-oai.phpbragantia@iac.sp.gov.br||bragantia@iac.sp.gov.br1678-44990006-8705opendoar:2021-04-30T00:00Bragantia - Instituto Agronômico de Campinas (IAC)false |
dc.title.none.fl_str_mv |
Estimates of genetic parameters for juvenile traits in macaw palm |
title |
Estimates of genetic parameters for juvenile traits in macaw palm |
spellingShingle |
Estimates of genetic parameters for juvenile traits in macaw palm Lustri,Elivelton Alves oleaginous species Arecaceae heritability REML/BLUP plant breeding |
title_short |
Estimates of genetic parameters for juvenile traits in macaw palm |
title_full |
Estimates of genetic parameters for juvenile traits in macaw palm |
title_fullStr |
Estimates of genetic parameters for juvenile traits in macaw palm |
title_full_unstemmed |
Estimates of genetic parameters for juvenile traits in macaw palm |
title_sort |
Estimates of genetic parameters for juvenile traits in macaw palm |
author |
Lustri,Elivelton Alves |
author_facet |
Lustri,Elivelton Alves Siqueira,Walter José Azevedo Filho,Joaquim Adelino de Vianna,Suelen Alves Colombo,Carlos Augusto |
author_role |
author |
author2 |
Siqueira,Walter José Azevedo Filho,Joaquim Adelino de Vianna,Suelen Alves Colombo,Carlos Augusto |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Lustri,Elivelton Alves Siqueira,Walter José Azevedo Filho,Joaquim Adelino de Vianna,Suelen Alves Colombo,Carlos Augusto |
dc.subject.por.fl_str_mv |
oleaginous species Arecaceae heritability REML/BLUP plant breeding |
topic |
oleaginous species Arecaceae heritability REML/BLUP plant breeding |
description |
ABSTRACT Acrocomia aculeata (Jacq.) Lodd. ex. Mart. (Arecaceae) is a neotropical oil palm of widespread occurrence in the American continent and with great economic potential for the energy and food sectors. Genetic breeding studies for the species are very recent, with a need for basic knowledge from the genetic diversity in agronomic traits. Thus, the aim of this work was to estimate genetic variance, heritability, and genetic gain as well as to propose strategies of selection. Two-year evaluations of eight agromorphological characteristics were carried out in two experimental fields composed of 50 open-pollinated progenies. The results revealed moderate heritability for progeny average to thorn density in the abaxial side ( = 0.402 in Pindorama) and relative chlorophyll index ( = 0.458 in Presidente Prudente). The selective accuracy was 0.634 and 0.677 for the same traits, respectively. In the combined analysis, the higher values of heritability were obtained to thorn density on the abaxial region of leaves and relative chlorophyll index (0.616 and 0.666, respectively). Moderate to high magnitude values of genetic gain was reached for traits with greatest agronomic interest, as plant height Gs (%) = 19.64, number of leaves Gs (%) = 26.43, stipe diameter at breast height Gs (%) = 12.51, and relative chlorophyll index Gs (%) = 38.12. In conclusion, the results indicate considerable genetic variability for the evaluated traits and suggest that their most effective use for the purpose of genetic gains would be based on the combined selection between and within progenies. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-01 |
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=S0006-87052021000100226 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052021000100226 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1678-4499.20200463 |
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 Agronômico de Campinas |
publisher.none.fl_str_mv |
Instituto Agronômico de Campinas |
dc.source.none.fl_str_mv |
Bragantia v.80 2021 reponame:Bragantia instname:Instituto Agronômico de Campinas (IAC) instacron:IAC |
instname_str |
Instituto Agronômico de Campinas (IAC) |
instacron_str |
IAC |
institution |
IAC |
reponame_str |
Bragantia |
collection |
Bragantia |
repository.name.fl_str_mv |
Bragantia - Instituto Agronômico de Campinas (IAC) |
repository.mail.fl_str_mv |
bragantia@iac.sp.gov.br||bragantia@iac.sp.gov.br |
_version_ |
1754193308072017920 |