Estimates of genetic parameters and variability in provenances and progeny of Handroanthus vellosoi

Detalhes bibliográficos
Autor(a) principal: Batista, Camila Moreira
Data de Publicação: 2012
Outros Autores: Freitas, Miguel Luiz Menezes, Moraes, Marcela Aparecida de, Zanatto, Antonio Carlos Scatena, Santos, Pedro César dos, Zanata, Marcelo, Moraes, Mario Luiz Teixeira de, Sebbenn, Alexandre Magno
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Florestal Brasileira (Online)
Texto Completo: https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/358
Resumo: The present study aimed at estimating genetic parameters and variability among and within provenances for silvicultural traits of Handroanthus vellosoi (Toledo) Mattos, in provenances and progenies test stands, located at the Luiz Antônio Experimental Station (São Paulo State, Brazil). The test was established in the compact family block design, with two provenances (allocated in the plots), six replicates and sub-linear plots of five plants, totalizing 35 progenies. Diameter at breast height (DBH), plant height, cylindrical volume, stem form and survival at 24 years of age were evaluated. Significant differences among the provenances were observed only to the trait stem form. The analysis of deviance showed significant differences among progenies for the joint analysis of the provenances (experimental population), suggesting that the population has high genetic variation and indicating the possibility of genetic improvement by selection of the best progenies. Heritability estimates in individual and family level ranged from low to moderate (26% for DBH, 32% for plant height, 24% for cylindrical volume, 27% for form and 36% for survival), confirming the possibility of genetic improvement by selection and that the provenances have potential to respond to the pressure of natural selection.
id EMBRAPA-5_ae440ea02a5baa858e6e7bc64858b800
oai_identifier_str oai:pfb.cnpf.embrapa.br/pfb:article/358
network_acronym_str EMBRAPA-5
network_name_str Pesquisa Florestal Brasileira (Online)
repository_id_str
spelling Estimates of genetic parameters and variability in provenances and progeny of Handroanthus vellosoiEstimativas de parâmetros genéticos e a variabilidade em procedências e progênies de Handroanthus vellosoiConservação ex situEspécies arbóreas tropicaisGenética de populaçõesGenética quantitativaEx situ conservationTropical tree speciesPopulation geneticsQuantitative geneticsThe present study aimed at estimating genetic parameters and variability among and within provenances for silvicultural traits of Handroanthus vellosoi (Toledo) Mattos, in provenances and progenies test stands, located at the Luiz Antônio Experimental Station (São Paulo State, Brazil). The test was established in the compact family block design, with two provenances (allocated in the plots), six replicates and sub-linear plots of five plants, totalizing 35 progenies. Diameter at breast height (DBH), plant height, cylindrical volume, stem form and survival at 24 years of age were evaluated. Significant differences among the provenances were observed only to the trait stem form. The analysis of deviance showed significant differences among progenies for the joint analysis of the provenances (experimental population), suggesting that the population has high genetic variation and indicating the possibility of genetic improvement by selection of the best progenies. Heritability estimates in individual and family level ranged from low to moderate (26% for DBH, 32% for plant height, 24% for cylindrical volume, 27% for form and 36% for survival), confirming the possibility of genetic improvement by selection and that the provenances have potential to respond to the pressure of natural selection.O presente estudo objetivou estimar parâmetros genéticos e a variabilidade entre e dentro de procedências, para caracteres silviculturais em um teste de procedências e progênies de Handroanthus vellosoi (Toledo) Mattos estabelecido na Estação Experimental de Luiz Antônio (SP). O teste foi instalado no delineamento experimental de blocos de famílias compactas, com duas procedências (alocadas nas parcelas), seis repetições e sub-parcelas lineares de cinco plantas, totalizando 35 progênies. O ensaio foi mensurado para os caracteres diâmetro à altura do peito, altura de planta, volume cilíndrico, forma do fuste e sobrevivência aos 24 anos de idade. Diferenças significativas entre procedências foram observadas apenas para o caráter forma do fuste. Pela análise de deviance foram detectadas diferenças significativas para o efeito de progênies para análise conjunta das procedências  (população experimental), sugerindo que esta tem alta  variação genética e indicando possibilidade de  melhoramento genético pela seleção das melhores progênies. A estimativa de herdabilidade em nível individual e média de progênies variaram de baixa a moderada (26% para DAP, 32% para altura, 24% para volume cilíndrico, 27% para forma do fuste e 46% para sobrevivência), confirmando a possibilidade de melhoramento genético por seleção e que as procedências tem potencial para responder à pressão de seleção natural.Embrapa Florestas2012-09-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/mswordhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/35810.4336//2012.pfb.32.71.269Pesquisa Florestal Brasileira; v. 32 n. 71 (2012): jul./set.; 269Pesquisa Florestal Brasileira; Vol. 32 No. 71 (2012): jul./set.; 2691983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/358/pdf_1https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/358/1051Batista, Camila MoreiraFreitas, Miguel Luiz MenezesMoraes, Marcela Aparecida deZanatto, Antonio Carlos ScatenaSantos, Pedro César dosZanata, MarceloMoraes, Mario Luiz Teixeira deSebbenn, Alexandre Magnoinfo:eu-repo/semantics/openAccess2017-04-28T12:56:05Zoai:pfb.cnpf.embrapa.br/pfb:article/358Revistahttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/PUBhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/oaipfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br1983-26051809-3647opendoar:2017-04-28T12:56:05Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Estimates of genetic parameters and variability in provenances and progeny of Handroanthus vellosoi
Estimativas de parâmetros genéticos e a variabilidade em procedências e progênies de Handroanthus vellosoi
title Estimates of genetic parameters and variability in provenances and progeny of Handroanthus vellosoi
spellingShingle Estimates of genetic parameters and variability in provenances and progeny of Handroanthus vellosoi
Batista, Camila Moreira
Conservação ex situ
Espécies arbóreas tropicais
Genética de populações
Genética quantitativa
Ex situ conservation
Tropical tree species
Population genetics
Quantitative genetics
title_short Estimates of genetic parameters and variability in provenances and progeny of Handroanthus vellosoi
title_full Estimates of genetic parameters and variability in provenances and progeny of Handroanthus vellosoi
title_fullStr Estimates of genetic parameters and variability in provenances and progeny of Handroanthus vellosoi
title_full_unstemmed Estimates of genetic parameters and variability in provenances and progeny of Handroanthus vellosoi
title_sort Estimates of genetic parameters and variability in provenances and progeny of Handroanthus vellosoi
author Batista, Camila Moreira
author_facet Batista, Camila Moreira
Freitas, Miguel Luiz Menezes
Moraes, Marcela Aparecida de
Zanatto, Antonio Carlos Scatena
Santos, Pedro César dos
Zanata, Marcelo
Moraes, Mario Luiz Teixeira de
Sebbenn, Alexandre Magno
author_role author
author2 Freitas, Miguel Luiz Menezes
Moraes, Marcela Aparecida de
Zanatto, Antonio Carlos Scatena
Santos, Pedro César dos
Zanata, Marcelo
Moraes, Mario Luiz Teixeira de
Sebbenn, Alexandre Magno
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Batista, Camila Moreira
Freitas, Miguel Luiz Menezes
Moraes, Marcela Aparecida de
Zanatto, Antonio Carlos Scatena
Santos, Pedro César dos
Zanata, Marcelo
Moraes, Mario Luiz Teixeira de
Sebbenn, Alexandre Magno
dc.subject.por.fl_str_mv Conservação ex situ
Espécies arbóreas tropicais
Genética de populações
Genética quantitativa
Ex situ conservation
Tropical tree species
Population genetics
Quantitative genetics
topic Conservação ex situ
Espécies arbóreas tropicais
Genética de populações
Genética quantitativa
Ex situ conservation
Tropical tree species
Population genetics
Quantitative genetics
description The present study aimed at estimating genetic parameters and variability among and within provenances for silvicultural traits of Handroanthus vellosoi (Toledo) Mattos, in provenances and progenies test stands, located at the Luiz Antônio Experimental Station (São Paulo State, Brazil). The test was established in the compact family block design, with two provenances (allocated in the plots), six replicates and sub-linear plots of five plants, totalizing 35 progenies. Diameter at breast height (DBH), plant height, cylindrical volume, stem form and survival at 24 years of age were evaluated. Significant differences among the provenances were observed only to the trait stem form. The analysis of deviance showed significant differences among progenies for the joint analysis of the provenances (experimental population), suggesting that the population has high genetic variation and indicating the possibility of genetic improvement by selection of the best progenies. Heritability estimates in individual and family level ranged from low to moderate (26% for DBH, 32% for plant height, 24% for cylindrical volume, 27% for form and 36% for survival), confirming the possibility of genetic improvement by selection and that the provenances have potential to respond to the pressure of natural selection.
publishDate 2012
dc.date.none.fl_str_mv 2012-09-28
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/358
10.4336//2012.pfb.32.71.269
url https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/358
identifier_str_mv 10.4336//2012.pfb.32.71.269
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/358/pdf_1
https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/358/1051
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/msword
dc.publisher.none.fl_str_mv Embrapa Florestas
publisher.none.fl_str_mv Embrapa Florestas
dc.source.none.fl_str_mv Pesquisa Florestal Brasileira; v. 32 n. 71 (2012): jul./set.; 269
Pesquisa Florestal Brasileira; Vol. 32 No. 71 (2012): jul./set.; 269
1983-2605
1809-3647
reponame:Pesquisa Florestal Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Florestal Brasileira (Online)
collection Pesquisa Florestal Brasileira (Online)
repository.name.fl_str_mv Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br
_version_ 1783370933563555840

Registros relacionados