Selection of Pinus spp. progenies in Lavras (Minas Gerais, Brazil) at 36 months of age
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/54466 |
Resumo: | Background: The selection of superior genotypes and adapted to the edaphoclimatic conditions of the region of the introduction produces gains in productivity for forest stands. The objective of this study was to select progenies of Pinus spp. planted in Lavras, Minas Gerais (MG), Brazil. Methods: The experimental site was located on dystrophic Haplic Cambisol. The progeny test was designed as a randomised complete block with 30 replicates and single plot. The treatments corresponded to one progeny of Pinus massoniana, three Pinus caribaea var. bahamensis and 33 Pinus caribaea var. hondurensis arranged with a 3x3 m spacing. The traits height (H), diameter at breast height (DBH) and crown projection area (CPA) were measured at 36 months of age. Results: The results showed that heritability in the narrow sense was 0.24 for DBH, 0.27 for H and 0.50 for CPA. The DBH and H traits showed a high-magnitude positive correlation. The P7, P15, P27, P31 and P33 progenies showed better performance than the other progenies for the evaluated traits. Direct and indirect selection showed similar gains, which favors the use of indirect selection; i.e., when selecting progenies for DBH, progenies with better performance in H are also selected. Additionally, DBH may be used at advanced ages given the difficulty of measuring height. The progeny of Pinus caribaea var. hondurensis showed superior performance compared with Pinus caribaea var. bahamensis and Pinus massoniana for the region of Lavras, MG. Conclusions: This study suggests the possibility of expanding the production of Pinus caribaea var. hondurensis in the region of Lavras with progenies P7, P15, P27, P31 and P33, because in the initial assessments they showed greater adaptability to the edaphoclimatic conditions. Nevertheless, performing a future selection with the aim of evaluating resin production is recommended. |
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Selection of Pinus spp. progenies in Lavras (Minas Gerais, Brazil) at 36 months of ageGenotypesGenetic parametersAdaptabilityBebaviourBackground: The selection of superior genotypes and adapted to the edaphoclimatic conditions of the region of the introduction produces gains in productivity for forest stands. The objective of this study was to select progenies of Pinus spp. planted in Lavras, Minas Gerais (MG), Brazil. Methods: The experimental site was located on dystrophic Haplic Cambisol. The progeny test was designed as a randomised complete block with 30 replicates and single plot. The treatments corresponded to one progeny of Pinus massoniana, three Pinus caribaea var. bahamensis and 33 Pinus caribaea var. hondurensis arranged with a 3x3 m spacing. The traits height (H), diameter at breast height (DBH) and crown projection area (CPA) were measured at 36 months of age. Results: The results showed that heritability in the narrow sense was 0.24 for DBH, 0.27 for H and 0.50 for CPA. The DBH and H traits showed a high-magnitude positive correlation. The P7, P15, P27, P31 and P33 progenies showed better performance than the other progenies for the evaluated traits. Direct and indirect selection showed similar gains, which favors the use of indirect selection; i.e., when selecting progenies for DBH, progenies with better performance in H are also selected. Additionally, DBH may be used at advanced ages given the difficulty of measuring height. The progeny of Pinus caribaea var. hondurensis showed superior performance compared with Pinus caribaea var. bahamensis and Pinus massoniana for the region of Lavras, MG. Conclusions: This study suggests the possibility of expanding the production of Pinus caribaea var. hondurensis in the region of Lavras with progenies P7, P15, P27, P31 and P33, because in the initial assessments they showed greater adaptability to the edaphoclimatic conditions. Nevertheless, performing a future selection with the aim of evaluating resin production is recommended.New Zealand Forest Research Institute Limited2022-09-05T19:59:29Z2022-09-05T19:59:29Z2022info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfNIERI, É. M. et al. Selection of Pinus spp. progenies in Lavras (Minas Gerais, Brazil) at 36 months of age. New Zealand Journal of Forestry Science, [S.l.], v. 52, n. 4, 2022.http://repositorio.ufla.br/jspui/handle/1/54466New Zealand Journal of Forestry Sciencereponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessNieri, Érick MartinsPorto, Antônio CarlosAlmeida, Rodolfo Soares deMelo, Lucas Amaral deResende, Eduardo WillianNeves, Generci AssisSantos, Luana Maria dosFaria, Júlio Cézar Tannureeng2022-09-05T19:59:30Zoai:localhost:1/54466Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2022-09-05T19:59:30Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Selection of Pinus spp. progenies in Lavras (Minas Gerais, Brazil) at 36 months of age |
title |
Selection of Pinus spp. progenies in Lavras (Minas Gerais, Brazil) at 36 months of age |
spellingShingle |
Selection of Pinus spp. progenies in Lavras (Minas Gerais, Brazil) at 36 months of age Nieri, Érick Martins Genotypes Genetic parameters Adaptability Bebaviour |
title_short |
Selection of Pinus spp. progenies in Lavras (Minas Gerais, Brazil) at 36 months of age |
title_full |
Selection of Pinus spp. progenies in Lavras (Minas Gerais, Brazil) at 36 months of age |
title_fullStr |
Selection of Pinus spp. progenies in Lavras (Minas Gerais, Brazil) at 36 months of age |
title_full_unstemmed |
Selection of Pinus spp. progenies in Lavras (Minas Gerais, Brazil) at 36 months of age |
title_sort |
Selection of Pinus spp. progenies in Lavras (Minas Gerais, Brazil) at 36 months of age |
author |
Nieri, Érick Martins |
author_facet |
Nieri, Érick Martins Porto, Antônio Carlos Almeida, Rodolfo Soares de Melo, Lucas Amaral de Resende, Eduardo Willian Neves, Generci Assis Santos, Luana Maria dos Faria, Júlio Cézar Tannure |
author_role |
author |
author2 |
Porto, Antônio Carlos Almeida, Rodolfo Soares de Melo, Lucas Amaral de Resende, Eduardo Willian Neves, Generci Assis Santos, Luana Maria dos Faria, Júlio Cézar Tannure |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Nieri, Érick Martins Porto, Antônio Carlos Almeida, Rodolfo Soares de Melo, Lucas Amaral de Resende, Eduardo Willian Neves, Generci Assis Santos, Luana Maria dos Faria, Júlio Cézar Tannure |
dc.subject.por.fl_str_mv |
Genotypes Genetic parameters Adaptability Bebaviour |
topic |
Genotypes Genetic parameters Adaptability Bebaviour |
description |
Background: The selection of superior genotypes and adapted to the edaphoclimatic conditions of the region of the introduction produces gains in productivity for forest stands. The objective of this study was to select progenies of Pinus spp. planted in Lavras, Minas Gerais (MG), Brazil. Methods: The experimental site was located on dystrophic Haplic Cambisol. The progeny test was designed as a randomised complete block with 30 replicates and single plot. The treatments corresponded to one progeny of Pinus massoniana, three Pinus caribaea var. bahamensis and 33 Pinus caribaea var. hondurensis arranged with a 3x3 m spacing. The traits height (H), diameter at breast height (DBH) and crown projection area (CPA) were measured at 36 months of age. Results: The results showed that heritability in the narrow sense was 0.24 for DBH, 0.27 for H and 0.50 for CPA. The DBH and H traits showed a high-magnitude positive correlation. The P7, P15, P27, P31 and P33 progenies showed better performance than the other progenies for the evaluated traits. Direct and indirect selection showed similar gains, which favors the use of indirect selection; i.e., when selecting progenies for DBH, progenies with better performance in H are also selected. Additionally, DBH may be used at advanced ages given the difficulty of measuring height. The progeny of Pinus caribaea var. hondurensis showed superior performance compared with Pinus caribaea var. bahamensis and Pinus massoniana for the region of Lavras, MG. Conclusions: This study suggests the possibility of expanding the production of Pinus caribaea var. hondurensis in the region of Lavras with progenies P7, P15, P27, P31 and P33, because in the initial assessments they showed greater adaptability to the edaphoclimatic conditions. Nevertheless, performing a future selection with the aim of evaluating resin production is recommended. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-09-05T19:59:29Z 2022-09-05T19:59:29Z 2022 |
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 |
NIERI, É. M. et al. Selection of Pinus spp. progenies in Lavras (Minas Gerais, Brazil) at 36 months of age. New Zealand Journal of Forestry Science, [S.l.], v. 52, n. 4, 2022. http://repositorio.ufla.br/jspui/handle/1/54466 |
identifier_str_mv |
NIERI, É. M. et al. Selection of Pinus spp. progenies in Lavras (Minas Gerais, Brazil) at 36 months of age. New Zealand Journal of Forestry Science, [S.l.], v. 52, n. 4, 2022. |
url |
http://repositorio.ufla.br/jspui/handle/1/54466 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
New Zealand Forest Research Institute Limited |
publisher.none.fl_str_mv |
New Zealand Forest Research Institute Limited |
dc.source.none.fl_str_mv |
New Zealand Journal of Forestry Science reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
_version_ |
1807835173921751040 |