Age-age correlation for early selection of rubber tree genotypes in São Paulo State, Brazil
Main Author: | |
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Publication Date: | 2005 |
Other Authors: | , , , , |
Format: | Article |
Language: | eng |
Source: | Repositório Institucional da UNESP |
Download full: | http://dx.doi.org/10.1590/S1415-47572005000500018 http://hdl.handle.net/11449/68429 |
Summary: | In a field trial involving 68 rubber tree (Hevea spp.) clones calculation of genotypic correlation coefficients revealed significant age-age correlation from age 1 to 6 (immature period) for girth A and for age 7 to 12 (mature period) for girth B and for age 7 to 12 (production of latex) for yield. Rank correlation coefficients between all immature ages of girth (girth A), all ages of mature girth (girth B) and all annual rubber production (yield) were significant for the three traits, with the coefficients decreasing with increasing age. Selection of the sets of best 30, 15, 10 and 5 clones from the available 68 clones at a given age was generally accompanied by a descending order of percentage success. It was suggested: (a) to have the best 30 clones of age 6, select the set of best 36 clones at age 2, (b) to have the best 15 clones of age 6, select the set of best 20 clones at age 3, (c) to have the best 5 clones of age 6, select the set of best 8 clones at age 4, and (d) to have the best 3 clones of age 6, select the set of best 3 clones at age 5. More than 80% of the targeted clones on girth A or girth B basis and more than 76.7% clones on yield basis were found to get selected at steps (a) through (d). For achieving early multiplication of the most productive clone for deployment, multiplication should be started with the best 36 (i.e. 60%) clones selected at age 2. Copyright by the Brazilian Society of Genetics. |
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Age-age correlation for early selection of rubber tree genotypes in São Paulo State, BrazilEarly clonal multiplicationEvaluation of clonesGenetic correlationHevea brasiliensisRank correlationlatexrubberBrazilclonecontrolled studygenetic correlationgenetic selectiongenotypenonhumanplant ageplant geneticsplant yieldHeveaIn a field trial involving 68 rubber tree (Hevea spp.) clones calculation of genotypic correlation coefficients revealed significant age-age correlation from age 1 to 6 (immature period) for girth A and for age 7 to 12 (mature period) for girth B and for age 7 to 12 (production of latex) for yield. Rank correlation coefficients between all immature ages of girth (girth A), all ages of mature girth (girth B) and all annual rubber production (yield) were significant for the three traits, with the coefficients decreasing with increasing age. Selection of the sets of best 30, 15, 10 and 5 clones from the available 68 clones at a given age was generally accompanied by a descending order of percentage success. It was suggested: (a) to have the best 30 clones of age 6, select the set of best 36 clones at age 2, (b) to have the best 15 clones of age 6, select the set of best 20 clones at age 3, (c) to have the best 5 clones of age 6, select the set of best 8 clones at age 4, and (d) to have the best 3 clones of age 6, select the set of best 3 clones at age 5. More than 80% of the targeted clones on girth A or girth B basis and more than 76.7% clones on yield basis were found to get selected at steps (a) through (d). For achieving early multiplication of the most productive clone for deployment, multiplication should be started with the best 36 (i.e. 60%) clones selected at age 2. Copyright by the Brazilian Society of Genetics.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Instituto Agronômico de Campinas Programa Seringueira, Caixa Postal 28, 13001-970 Campinas, SPAPTA Regional Noroeste Paulista, Votuporanga, SPInstituto Agronômico de Campinas Pós-graduação, Campinas, SPInstituto Agronômico de Campinas Bolsista CNPq, Campinas, SPUCDB Programa de Desenvolvimento Local, Campo Grande, MSUniversidade Estadual Paulista Júlio de Mesquita Filho, Campus Ilha Solteira, São Paulo, SPUniversidade Estadual Paulista Júlio de Mesquita Filho, Campus Ilha Solteira, São Paulo, SPInstituto Agronômico (IAC)Agência Paulista de Tecnologia dos Agronegócios (APTA)UCDB Programa de Desenvolvimento LocalUniversidade Estadual Paulista (Unesp)de Souza Gonçalves, PauloBortoletto, NelsonCardinal, Átila Bento BeletiGouvêa, Lígia Regina Limada Costa, Reginaldo Britode Moraes, Mário Luiz Teixeira [UNESP]2014-05-27T11:21:38Z2014-05-27T11:21:38Z2005-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article758-764application/pdfhttp://dx.doi.org/10.1590/S1415-47572005000500018Genetics and Molecular Biology, v. 28, n. 4, p. 758-764, 2005.1415-47571678-4685http://hdl.handle.net/11449/6842910.1590/S1415-47572005000500018S1415-47572005000500018WOS:0002460815000182-s2.0-314444430642-s2.0-31444443064.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengGenetics and Molecular Biology1.4930,638info:eu-repo/semantics/openAccess2023-10-17T06:05:11Zoai:repositorio.unesp.br:11449/68429Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-17T06:05:11Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Age-age correlation for early selection of rubber tree genotypes in São Paulo State, Brazil |
title |
Age-age correlation for early selection of rubber tree genotypes in São Paulo State, Brazil |
spellingShingle |
Age-age correlation for early selection of rubber tree genotypes in São Paulo State, Brazil de Souza Gonçalves, Paulo Early clonal multiplication Evaluation of clones Genetic correlation Hevea brasiliensis Rank correlation latex rubber Brazil clone controlled study genetic correlation genetic selection genotype nonhuman plant age plant genetics plant yield Hevea |
title_short |
Age-age correlation for early selection of rubber tree genotypes in São Paulo State, Brazil |
title_full |
Age-age correlation for early selection of rubber tree genotypes in São Paulo State, Brazil |
title_fullStr |
Age-age correlation for early selection of rubber tree genotypes in São Paulo State, Brazil |
title_full_unstemmed |
Age-age correlation for early selection of rubber tree genotypes in São Paulo State, Brazil |
title_sort |
Age-age correlation for early selection of rubber tree genotypes in São Paulo State, Brazil |
author |
de Souza Gonçalves, Paulo |
author_facet |
de Souza Gonçalves, Paulo Bortoletto, Nelson Cardinal, Átila Bento Beleti Gouvêa, Lígia Regina Lima da Costa, Reginaldo Brito de Moraes, Mário Luiz Teixeira [UNESP] |
author_role |
author |
author2 |
Bortoletto, Nelson Cardinal, Átila Bento Beleti Gouvêa, Lígia Regina Lima da Costa, Reginaldo Brito de Moraes, Mário Luiz Teixeira [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Instituto Agronômico (IAC) Agência Paulista de Tecnologia dos Agronegócios (APTA) UCDB Programa de Desenvolvimento Local Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
de Souza Gonçalves, Paulo Bortoletto, Nelson Cardinal, Átila Bento Beleti Gouvêa, Lígia Regina Lima da Costa, Reginaldo Brito de Moraes, Mário Luiz Teixeira [UNESP] |
dc.subject.por.fl_str_mv |
Early clonal multiplication Evaluation of clones Genetic correlation Hevea brasiliensis Rank correlation latex rubber Brazil clone controlled study genetic correlation genetic selection genotype nonhuman plant age plant genetics plant yield Hevea |
topic |
Early clonal multiplication Evaluation of clones Genetic correlation Hevea brasiliensis Rank correlation latex rubber Brazil clone controlled study genetic correlation genetic selection genotype nonhuman plant age plant genetics plant yield Hevea |
description |
In a field trial involving 68 rubber tree (Hevea spp.) clones calculation of genotypic correlation coefficients revealed significant age-age correlation from age 1 to 6 (immature period) for girth A and for age 7 to 12 (mature period) for girth B and for age 7 to 12 (production of latex) for yield. Rank correlation coefficients between all immature ages of girth (girth A), all ages of mature girth (girth B) and all annual rubber production (yield) were significant for the three traits, with the coefficients decreasing with increasing age. Selection of the sets of best 30, 15, 10 and 5 clones from the available 68 clones at a given age was generally accompanied by a descending order of percentage success. It was suggested: (a) to have the best 30 clones of age 6, select the set of best 36 clones at age 2, (b) to have the best 15 clones of age 6, select the set of best 20 clones at age 3, (c) to have the best 5 clones of age 6, select the set of best 8 clones at age 4, and (d) to have the best 3 clones of age 6, select the set of best 3 clones at age 5. More than 80% of the targeted clones on girth A or girth B basis and more than 76.7% clones on yield basis were found to get selected at steps (a) through (d). For achieving early multiplication of the most productive clone for deployment, multiplication should be started with the best 36 (i.e. 60%) clones selected at age 2. 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/S1415-47572005000500018 Genetics and Molecular Biology, v. 28, n. 4, p. 758-764, 2005. 1415-4757 1678-4685 http://hdl.handle.net/11449/68429 10.1590/S1415-47572005000500018 S1415-47572005000500018 WOS:000246081500018 2-s2.0-31444443064 2-s2.0-31444443064.pdf |
url |
http://dx.doi.org/10.1590/S1415-47572005000500018 http://hdl.handle.net/11449/68429 |
identifier_str_mv |
Genetics and Molecular Biology, v. 28, n. 4, p. 758-764, 2005. 1415-4757 1678-4685 10.1590/S1415-47572005000500018 S1415-47572005000500018 WOS:000246081500018 2-s2.0-31444443064 2-s2.0-31444443064.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 |
758-764 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_ |
1799964593846484992 |