Selection among and within and combined selection in oil palm families derived from Dura x Dura
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Ciência Rural |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000100011 |
Resumo: | Oil palm, in view of the worldwide consumed oil, is a perennial crop of great importance. Nevertheless, the genetic improvement is still incipient. In this study we applied the selection among and within families and the combined selection, based on the phenotypic values and phenotypic performance (Pi statistic), to verify which strategy obtained the highest genetic gains. Five full-sib families were evaluated in randomized blocks, with five replicates and 12 plants per plot, over five years of successive harvests. The total number of bunches and the total fruit yield per year plant-1 were evaluated. Values of 1.00 and 0.25 for the ratio between the environmental variance among plots and the environmental variance among plants within the plot for both traits, respectively, were adequate for the estimation of the genetic parameters. The existence of genetic variability in the population Dura was verified for both evaluated traits. The combined selection, based either on the phenotypic values or on the underlying Pi statistic, resulted in the highest genetic gains. Despite the satisfactory gains since it translates the true yield potential of the evaluated genotypes and their performance stability. |
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Selection among and within and combined selection in oil palm families derived from Dura x DuraElaeis guineensis Jacq.family testselection strategiesPi statisticOil palm, in view of the worldwide consumed oil, is a perennial crop of great importance. Nevertheless, the genetic improvement is still incipient. In this study we applied the selection among and within families and the combined selection, based on the phenotypic values and phenotypic performance (Pi statistic), to verify which strategy obtained the highest genetic gains. Five full-sib families were evaluated in randomized blocks, with five replicates and 12 plants per plot, over five years of successive harvests. The total number of bunches and the total fruit yield per year plant-1 were evaluated. Values of 1.00 and 0.25 for the ratio between the environmental variance among plots and the environmental variance among plants within the plot for both traits, respectively, were adequate for the estimation of the genetic parameters. The existence of genetic variability in the population Dura was verified for both evaluated traits. The combined selection, based either on the phenotypic values or on the underlying Pi statistic, resulted in the highest genetic gains. Despite the satisfactory gains since it translates the true yield potential of the evaluated genotypes and their performance stability.Universidade Federal de Santa Maria2008-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000100011Ciência Rural v.38 n.1 2008reponame:Ciência Ruralinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM10.1590/S0103-84782008000100011info:eu-repo/semantics/openAccessCedillo,Digner Santiago OrtegaFerreira,Fábio MedeirosBarros,Willian SilvaCruz,Cosme DamiãoDias,Luiz Antônio dos SantosRocha,Rodrigo Barroseng2007-12-14T00:00:00ZRevista |
dc.title.none.fl_str_mv |
Selection among and within and combined selection in oil palm families derived from Dura x Dura |
title |
Selection among and within and combined selection in oil palm families derived from Dura x Dura |
spellingShingle |
Selection among and within and combined selection in oil palm families derived from Dura x Dura Cedillo,Digner Santiago Ortega Elaeis guineensis Jacq. family test selection strategies Pi statistic |
title_short |
Selection among and within and combined selection in oil palm families derived from Dura x Dura |
title_full |
Selection among and within and combined selection in oil palm families derived from Dura x Dura |
title_fullStr |
Selection among and within and combined selection in oil palm families derived from Dura x Dura |
title_full_unstemmed |
Selection among and within and combined selection in oil palm families derived from Dura x Dura |
title_sort |
Selection among and within and combined selection in oil palm families derived from Dura x Dura |
author |
Cedillo,Digner Santiago Ortega |
author_facet |
Cedillo,Digner Santiago Ortega Ferreira,Fábio Medeiros Barros,Willian Silva Cruz,Cosme Damião Dias,Luiz Antônio dos Santos Rocha,Rodrigo Barros |
author_role |
author |
author2 |
Ferreira,Fábio Medeiros Barros,Willian Silva Cruz,Cosme Damião Dias,Luiz Antônio dos Santos Rocha,Rodrigo Barros |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Cedillo,Digner Santiago Ortega Ferreira,Fábio Medeiros Barros,Willian Silva Cruz,Cosme Damião Dias,Luiz Antônio dos Santos Rocha,Rodrigo Barros |
dc.subject.por.fl_str_mv |
Elaeis guineensis Jacq. family test selection strategies Pi statistic |
topic |
Elaeis guineensis Jacq. family test selection strategies Pi statistic |
description |
Oil palm, in view of the worldwide consumed oil, is a perennial crop of great importance. Nevertheless, the genetic improvement is still incipient. In this study we applied the selection among and within families and the combined selection, based on the phenotypic values and phenotypic performance (Pi statistic), to verify which strategy obtained the highest genetic gains. Five full-sib families were evaluated in randomized blocks, with five replicates and 12 plants per plot, over five years of successive harvests. The total number of bunches and the total fruit yield per year plant-1 were evaluated. Values of 1.00 and 0.25 for the ratio between the environmental variance among plots and the environmental variance among plants within the plot for both traits, respectively, were adequate for the estimation of the genetic parameters. The existence of genetic variability in the population Dura was verified for both evaluated traits. The combined selection, based either on the phenotypic values or on the underlying Pi statistic, resulted in the highest genetic gains. Despite the satisfactory gains since it translates the true yield potential of the evaluated genotypes and their performance stability. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-02-01 |
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=S0103-84782008000100011 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000100011 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-84782008000100011 |
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 |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Rural v.38 n.1 2008 reponame:Ciência Rural instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Rural |
collection |
Ciência Rural |
repository.name.fl_str_mv |
|
repository.mail.fl_str_mv |
|
_version_ |
1749140529755455488 |