Genetic variation in growth traits and yield of rubber trees (Hevea brasiliensis) growing in the Brazilian state of São Paulo
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1415-47572005000500019 http://hdl.handle.net/11449/68430 |
Resumo: | Analysis of variance and covariance was preformed on growth traits (stem girth, bark thickness, total height gain and rubber yield) of 22 open-pollinated progenies of the rubber tree Hevea brasiliensis from an Asian Hevea collection introduced to Agronomic Institute (Instituto Agronômico, Campinas, São Paulo, Brazil; IAC) in 1952. This progeny trial was replicated at three sites in São Paulo state and it was found that at three years from sowing there was statistically significant variation for girth, bark thickness, height and rubber yield. An individual test sites, values of individual plant heritability for girth ranged from ĥ i 2 = 0.36 to ĥ i 2 = 0.89 whereas values for heritability for progeny means ranged from ĥ i 2 = 0.77 to ĥ i 2 = 0.87. These moderate and high heritabilities suggest that a combination of progeny and within-progeny selection would be effective at increasing girth in this population at individual sites. Across sites, values of individual-plant heritability for girth ranged from ĥ i 2 = 0.36 to ĥ i 2 = 0.47, whereas values for heritability of progeny means girth ranged from ĥ x̄ 2 = 0.77 to ĥ x̄ 2 = 0.87. There were high positive genetic correlations between increased girth and bark thickness suggesting that breeding aimed at increasing girth would also increase bark thickness and possibly height. Copyright by the Brazilian Society of Genetics. |
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Genetic variation in growth traits and yield of rubber trees (Hevea brasiliensis) growing in the Brazilian state of São PauloGenetic parametersHeritabilityHevea brasiliensisRubber treerubberanalysis of covarianceanalysis of variancebarkBrazilcontrolled studygenetic correlationgenetic selectiongenetic traitgenetic variabilityheritabilitynonhumanplant breedingplant geneticsplant growthplant heightplant yieldpollinationprogenysowingstatistical significancetree trunkHeveaAnalysis of variance and covariance was preformed on growth traits (stem girth, bark thickness, total height gain and rubber yield) of 22 open-pollinated progenies of the rubber tree Hevea brasiliensis from an Asian Hevea collection introduced to Agronomic Institute (Instituto Agronômico, Campinas, São Paulo, Brazil; IAC) in 1952. This progeny trial was replicated at three sites in São Paulo state and it was found that at three years from sowing there was statistically significant variation for girth, bark thickness, height and rubber yield. An individual test sites, values of individual plant heritability for girth ranged from ĥ i 2 = 0.36 to ĥ i 2 = 0.89 whereas values for heritability for progeny means ranged from ĥ i 2 = 0.77 to ĥ i 2 = 0.87. These moderate and high heritabilities suggest that a combination of progeny and within-progeny selection would be effective at increasing girth in this population at individual sites. Across sites, values of individual-plant heritability for girth ranged from ĥ i 2 = 0.36 to ĥ i 2 = 0.47, whereas values for heritability of progeny means girth ranged from ĥ x̄ 2 = 0.77 to ĥ x̄ 2 = 0.87. There were high positive genetic correlations between increased girth and bark thickness suggesting that breeding aimed at increasing girth would also increase bark thickness and possibly height. Copyright by the Brazilian Society of Genetics.Instituto Agronômico de Campinas Programa Seringueira, Av. Barão de Itapura 1481, Campinas, São PauloUniversidade Estadual Paulsita Júlio de Mesquita Filho, Campus Ilha Solteira, São PauloAPTA Regional Noroeste Paulista, Votuporanga, São PauloUCDB Programa de Desenvolvimento Local, Campo Grande, Mato Grosso do SulAPTA Regional Alta Mogiana, Colina, São PauloUniversidade Estadual Paulsita Júlio de Mesquita Filho, Campus Ilha Solteira, São PauloPrograma SeringueiraUniversidade Estadual Paulista (Unesp)Agência Paulista de Tecnologia dos Agronegócios (APTA)UCDB Programa de Desenvolvimento Localde Souza Gonçalves, Paulode Moraes, Mário Luiz Teixeira [UNESP]Bortoletto, Nelsonda Costa, Reginaldo BritoGonçalves, Elaine Cristine Pifer2014-05-27T11:21:38Z2014-05-27T11:21:38Z2005-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article765-772application/pdfhttp://dx.doi.org/10.1590/S1415-47572005000500019Genetics and Molecular Biology, v. 28, n. 4, p. 765-772, 2005.1415-47571678-4685http://hdl.handle.net/11449/6843010.1590/S1415-47572005000500019S1415-47572005000500019WOS:0002460815000192-s2.0-314444385632-s2.0-31444438563.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengGenetics and Molecular Biology1.4930,638info:eu-repo/semantics/openAccess2023-12-17T06:21:00Zoai:repositorio.unesp.br:11449/68430Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:34:33.595903Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Genetic variation in growth traits and yield of rubber trees (Hevea brasiliensis) growing in the Brazilian state of São Paulo |
title |
Genetic variation in growth traits and yield of rubber trees (Hevea brasiliensis) growing in the Brazilian state of São Paulo |
spellingShingle |
Genetic variation in growth traits and yield of rubber trees (Hevea brasiliensis) growing in the Brazilian state of São Paulo de Souza Gonçalves, Paulo Genetic parameters Heritability Hevea brasiliensis Rubber tree rubber analysis of covariance analysis of variance bark Brazil controlled study genetic correlation genetic selection genetic trait genetic variability heritability nonhuman plant breeding plant genetics plant growth plant height plant yield pollination progeny sowing statistical significance tree trunk Hevea |
title_short |
Genetic variation in growth traits and yield of rubber trees (Hevea brasiliensis) growing in the Brazilian state of São Paulo |
title_full |
Genetic variation in growth traits and yield of rubber trees (Hevea brasiliensis) growing in the Brazilian state of São Paulo |
title_fullStr |
Genetic variation in growth traits and yield of rubber trees (Hevea brasiliensis) growing in the Brazilian state of São Paulo |
title_full_unstemmed |
Genetic variation in growth traits and yield of rubber trees (Hevea brasiliensis) growing in the Brazilian state of São Paulo |
title_sort |
Genetic variation in growth traits and yield of rubber trees (Hevea brasiliensis) growing in the Brazilian state of São Paulo |
author |
de Souza Gonçalves, Paulo |
author_facet |
de Souza Gonçalves, Paulo de Moraes, Mário Luiz Teixeira [UNESP] Bortoletto, Nelson da Costa, Reginaldo Brito Gonçalves, Elaine Cristine Pifer |
author_role |
author |
author2 |
de Moraes, Mário Luiz Teixeira [UNESP] Bortoletto, Nelson da Costa, Reginaldo Brito Gonçalves, Elaine Cristine Pifer |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Programa Seringueira Universidade Estadual Paulista (Unesp) Agência Paulista de Tecnologia dos Agronegócios (APTA) UCDB Programa de Desenvolvimento Local |
dc.contributor.author.fl_str_mv |
de Souza Gonçalves, Paulo de Moraes, Mário Luiz Teixeira [UNESP] Bortoletto, Nelson da Costa, Reginaldo Brito Gonçalves, Elaine Cristine Pifer |
dc.subject.por.fl_str_mv |
Genetic parameters Heritability Hevea brasiliensis Rubber tree rubber analysis of covariance analysis of variance bark Brazil controlled study genetic correlation genetic selection genetic trait genetic variability heritability nonhuman plant breeding plant genetics plant growth plant height plant yield pollination progeny sowing statistical significance tree trunk Hevea |
topic |
Genetic parameters Heritability Hevea brasiliensis Rubber tree rubber analysis of covariance analysis of variance bark Brazil controlled study genetic correlation genetic selection genetic trait genetic variability heritability nonhuman plant breeding plant genetics plant growth plant height plant yield pollination progeny sowing statistical significance tree trunk Hevea |
description |
Analysis of variance and covariance was preformed on growth traits (stem girth, bark thickness, total height gain and rubber yield) of 22 open-pollinated progenies of the rubber tree Hevea brasiliensis from an Asian Hevea collection introduced to Agronomic Institute (Instituto Agronômico, Campinas, São Paulo, Brazil; IAC) in 1952. This progeny trial was replicated at three sites in São Paulo state and it was found that at three years from sowing there was statistically significant variation for girth, bark thickness, height and rubber yield. An individual test sites, values of individual plant heritability for girth ranged from ĥ i 2 = 0.36 to ĥ i 2 = 0.89 whereas values for heritability for progeny means ranged from ĥ i 2 = 0.77 to ĥ i 2 = 0.87. These moderate and high heritabilities suggest that a combination of progeny and within-progeny selection would be effective at increasing girth in this population at individual sites. Across sites, values of individual-plant heritability for girth ranged from ĥ i 2 = 0.36 to ĥ i 2 = 0.47, whereas values for heritability of progeny means girth ranged from ĥ x̄ 2 = 0.77 to ĥ x̄ 2 = 0.87. There were high positive genetic correlations between increased girth and bark thickness suggesting that breeding aimed at increasing girth would also increase bark thickness and possibly height. Copyright by the Brazilian Society of Genetics. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-10-01 2014-05-27T11:21:38Z 2014-05-27T11:21:38Z |
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/10.1590/S1415-47572005000500019 Genetics and Molecular Biology, v. 28, n. 4, p. 765-772, 2005. 1415-4757 1678-4685 http://hdl.handle.net/11449/68430 10.1590/S1415-47572005000500019 S1415-47572005000500019 WOS:000246081500019 2-s2.0-31444438563 2-s2.0-31444438563.pdf |
url |
http://dx.doi.org/10.1590/S1415-47572005000500019 http://hdl.handle.net/11449/68430 |
identifier_str_mv |
Genetics and Molecular Biology, v. 28, n. 4, p. 765-772, 2005. 1415-4757 1678-4685 10.1590/S1415-47572005000500019 S1415-47572005000500019 WOS:000246081500019 2-s2.0-31444438563 2-s2.0-31444438563.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Genetics and Molecular Biology 1.493 0,638 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
765-772 application/pdf |
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_ |
1808129221954895872 |