GENETIC VARIATION AMONG AND WITHIN CANDEIA (Eremanthus Erythropappus (DC.) MacLeish) POPULATIONS
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Ciência Florestal (Online) |
Texto Completo: | https://periodicos.ufsm.br/cienciaflorestal/article/view/1959 |
Resumo: | Among the suitable species for restoration of arboreal vegetation in degraded lands in the south of Minas Gerais, candeia trees (Eremanthus erythropappus (DC.) MacLeish) stand out because they occur and regenerate naturally in stony and poor sites. Besides, they have good attributes related to the natural durability of wood and the quality of essential oil for use in pharmacology. The success of restoration is related to the speed with which the vegetation is reestablished. Hence, the search for superior and adapted genotypes, which are able to colonize the area quickly, is of great economical and environmental importance. Open-pollinated seeds were collected from 27 mother trees in two distinct populations: São Tomé das Letras and Carrancas, Minas Gerais state, Brazil. The germinated plantlets were arranged in a randomized block design with three replications containing seedling from the 27 open-pollinated progenies. After three months of seedling grown in containers, the genetic variation among and within seed populations was evaluated. The analyses of variance showed that there were significant differences among and within populations in stem diameter. Within São Tomé das Letras population, the variation among progenies was significant in diameter and, within Carrancas population, only in seedling height the variation was significant. However, a longer term of evaluation is required for the sake of genotype selection of candeia, since a large extent of the manifested variation in seedlings stage might be due to inheritance of maternal influences that will not be transmitted for the following generations. |
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GENETIC VARIATION AMONG AND WITHIN CANDEIA (Eremanthus Erythropappus (DC.) MacLeish) POPULATIONSVariação genética entre e dentro de populações de candeia (Eremanthus erythropappus (DC.) MacLeish).degraded landsgenetic parametersgenotype selectionáreas degradadasparâmetros genéticosseleção de genótiposAmong the suitable species for restoration of arboreal vegetation in degraded lands in the south of Minas Gerais, candeia trees (Eremanthus erythropappus (DC.) MacLeish) stand out because they occur and regenerate naturally in stony and poor sites. Besides, they have good attributes related to the natural durability of wood and the quality of essential oil for use in pharmacology. The success of restoration is related to the speed with which the vegetation is reestablished. Hence, the search for superior and adapted genotypes, which are able to colonize the area quickly, is of great economical and environmental importance. Open-pollinated seeds were collected from 27 mother trees in two distinct populations: São Tomé das Letras and Carrancas, Minas Gerais state, Brazil. The germinated plantlets were arranged in a randomized block design with three replications containing seedling from the 27 open-pollinated progenies. After three months of seedling grown in containers, the genetic variation among and within seed populations was evaluated. The analyses of variance showed that there were significant differences among and within populations in stem diameter. Within São Tomé das Letras population, the variation among progenies was significant in diameter and, within Carrancas population, only in seedling height the variation was significant. However, a longer term of evaluation is required for the sake of genotype selection of candeia, since a large extent of the manifested variation in seedlings stage might be due to inheritance of maternal influences that will not be transmitted for the following generations.Entre as espécies indicadas para a restauração da vegetação arbórea em sítios degradados no sul de Minas Gerais, destaca-se a candeia (Eremanthus erythropappus (DC.) MacLeish), que ocorre naturalmente em solos pobres e pedregosos, além de possuir atributos relativos à durabilidade natural da madeira e à qualidade de óleo essencial para uso na farmacologia. O sucesso da recuperação dessas áreas está relacionado com a rapidez com que a vegetação é restabelecida. Assim, a busca de genótipos superiores e adaptados, que possam rapidamente recolonizar a área, é de grande importância econômica e ambiental. Neste estudo, foram coletadas sementes de polinização livre de 27 matrizes em duas populações de candeia distintas, São Tomé das Letras e Carrancas, localizadas no Estado de Minas Gerais. Após a germinação, as mudas foram repicadas para tubetes e arranjadas em blocos casualizados completos, com três repetições. Três meses após a repicagem, foi avaliada a variação entre e dentro das populações. Verificou-se, pela análise de variância, que existem diferenças significativas entre e dentro de populações para o caráter diâmetro do caule. As variações entre as progênies foram significativas dentro da população de São Tomé das Letras para o diâmetro, e, dentro da população de Carrancas, para o caráter altura total das mudas. Porém, para a seleção de genótipos, é necessário maior tempo de avaliação, visto que grande parte da variação apresentada na fase de mudas pode ser decorrente do efeito materno, o qual não é transmitido para a geração seguinte.Universidade Federal de Santa Maria2007-09-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/cienciaflorestal/article/view/195910.5902/198050981959Ciência Florestal; Vol. 17 No. 3 (2007); 271-277Ciência Florestal; v. 17 n. 3 (2007); 271-2771980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/1959/1213Silva, Ana Carolina daRosado, Sebastião Carlos da SilvaVieira, Cenir TeodoroCarvalho, Dulcinéia deinfo:eu-repo/semantics/openAccess2017-05-12T14:28:30Zoai:ojs.pkp.sfu.ca:article/1959Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2017-05-12T14:28:30Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
GENETIC VARIATION AMONG AND WITHIN CANDEIA (Eremanthus Erythropappus (DC.) MacLeish) POPULATIONS Variação genética entre e dentro de populações de candeia (Eremanthus erythropappus (DC.) MacLeish). |
title |
GENETIC VARIATION AMONG AND WITHIN CANDEIA (Eremanthus Erythropappus (DC.) MacLeish) POPULATIONS |
spellingShingle |
GENETIC VARIATION AMONG AND WITHIN CANDEIA (Eremanthus Erythropappus (DC.) MacLeish) POPULATIONS Silva, Ana Carolina da degraded lands genetic parameters genotype selection áreas degradadas parâmetros genéticos seleção de genótipos |
title_short |
GENETIC VARIATION AMONG AND WITHIN CANDEIA (Eremanthus Erythropappus (DC.) MacLeish) POPULATIONS |
title_full |
GENETIC VARIATION AMONG AND WITHIN CANDEIA (Eremanthus Erythropappus (DC.) MacLeish) POPULATIONS |
title_fullStr |
GENETIC VARIATION AMONG AND WITHIN CANDEIA (Eremanthus Erythropappus (DC.) MacLeish) POPULATIONS |
title_full_unstemmed |
GENETIC VARIATION AMONG AND WITHIN CANDEIA (Eremanthus Erythropappus (DC.) MacLeish) POPULATIONS |
title_sort |
GENETIC VARIATION AMONG AND WITHIN CANDEIA (Eremanthus Erythropappus (DC.) MacLeish) POPULATIONS |
author |
Silva, Ana Carolina da |
author_facet |
Silva, Ana Carolina da Rosado, Sebastião Carlos da Silva Vieira, Cenir Teodoro Carvalho, Dulcinéia de |
author_role |
author |
author2 |
Rosado, Sebastião Carlos da Silva Vieira, Cenir Teodoro Carvalho, Dulcinéia de |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Silva, Ana Carolina da Rosado, Sebastião Carlos da Silva Vieira, Cenir Teodoro Carvalho, Dulcinéia de |
dc.subject.por.fl_str_mv |
degraded lands genetic parameters genotype selection áreas degradadas parâmetros genéticos seleção de genótipos |
topic |
degraded lands genetic parameters genotype selection áreas degradadas parâmetros genéticos seleção de genótipos |
description |
Among the suitable species for restoration of arboreal vegetation in degraded lands in the south of Minas Gerais, candeia trees (Eremanthus erythropappus (DC.) MacLeish) stand out because they occur and regenerate naturally in stony and poor sites. Besides, they have good attributes related to the natural durability of wood and the quality of essential oil for use in pharmacology. The success of restoration is related to the speed with which the vegetation is reestablished. Hence, the search for superior and adapted genotypes, which are able to colonize the area quickly, is of great economical and environmental importance. Open-pollinated seeds were collected from 27 mother trees in two distinct populations: São Tomé das Letras and Carrancas, Minas Gerais state, Brazil. The germinated plantlets were arranged in a randomized block design with three replications containing seedling from the 27 open-pollinated progenies. After three months of seedling grown in containers, the genetic variation among and within seed populations was evaluated. The analyses of variance showed that there were significant differences among and within populations in stem diameter. Within São Tomé das Letras population, the variation among progenies was significant in diameter and, within Carrancas population, only in seedling height the variation was significant. However, a longer term of evaluation is required for the sake of genotype selection of candeia, since a large extent of the manifested variation in seedlings stage might be due to inheritance of maternal influences that will not be transmitted for the following generations. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-09-30 |
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://periodicos.ufsm.br/cienciaflorestal/article/view/1959 10.5902/198050981959 |
url |
https://periodicos.ufsm.br/cienciaflorestal/article/view/1959 |
identifier_str_mv |
10.5902/198050981959 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/1959/1213 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
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 Florestal; Vol. 17 No. 3 (2007); 271-277 Ciência Florestal; v. 17 n. 3 (2007); 271-277 1980-5098 0103-9954 reponame:Ciência Florestal (Online) 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 Florestal (Online) |
collection |
Ciência Florestal (Online) |
repository.name.fl_str_mv |
Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br |
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1789434744496193536 |