Seedling emergence of Caryocar brasiliense according to mother plant and gibberellic acid use

Detalhes bibliográficos
Autor(a) principal: Leão, Érica Fernandes
Data de Publicação: 2012
Outros Autores: Peixoto, Nei, Morais Júnior, Odilon Peixoto de
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/18114
Resumo: Caryocar brasiliense is one of the most promising native fruit trees from the Brazilian Savannah, in the Goiás State, Brazil, concerning commercial production. However, the low and irregular germination of its seeds can be an obstacle for producing it on a large scale. Aiming at evaluating the emergence of Caryocar brasiliense seeds and the initial growth of seedlings from 16 plants, ten months after harvesting, with and without gibberellic acid (GA3), two field trials were carried out. The first one included a randomized split-plot blocks design, with mother plants in the plots, and an immersion treatment for 48 hours, in pure water and in a solution of 500 mg L-1 of GA3, in subplots. Every seven days, emergence final percentage, average time and speed index were evaluated. The second field trial used a completely randomized design, with different numbers of replications, according with the number of seedlings from the first experiment. For emergence percentage, speed index and average time, treatments presented a significant effect, with a significant interaction between genotype and treatment, for emergence percentage and speed index, to overcome dormancy. It was observed that the use of 500 mg L-1 of gibberellic acid may minimize dormancy in Caryocar brasiliense seeds and that the field growth of mother plants was linear and continuous over time.
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spelling Seedling emergence of Caryocar brasiliense according to mother plant and gibberellic acid useEmergência de plântulas de pequizeiro em função da planta matriz e uso de ácido giberélicoCaryocar brasiliense Camb.seeds dormancyBrazilian Savannah native fruit trees.Caryocar brasiliense Camb.dormência de sementesfrutíferas do Cerrado.Caryocar brasiliense is one of the most promising native fruit trees from the Brazilian Savannah, in the Goiás State, Brazil, concerning commercial production. However, the low and irregular germination of its seeds can be an obstacle for producing it on a large scale. Aiming at evaluating the emergence of Caryocar brasiliense seeds and the initial growth of seedlings from 16 plants, ten months after harvesting, with and without gibberellic acid (GA3), two field trials were carried out. The first one included a randomized split-plot blocks design, with mother plants in the plots, and an immersion treatment for 48 hours, in pure water and in a solution of 500 mg L-1 of GA3, in subplots. Every seven days, emergence final percentage, average time and speed index were evaluated. The second field trial used a completely randomized design, with different numbers of replications, according with the number of seedlings from the first experiment. For emergence percentage, speed index and average time, treatments presented a significant effect, with a significant interaction between genotype and treatment, for emergence percentage and speed index, to overcome dormancy. It was observed that the use of 500 mg L-1 of gibberellic acid may minimize dormancy in Caryocar brasiliense seeds and that the field growth of mother plants was linear and continuous over time.Em Goiás, o pequi (Caryocar brasiliense) se destaca, dentre as frutíferas nativas do Cerrado, como promissora para a produção comercial. Um dos obstáculos para a sua produção em grande escala, no entanto, é o fato de que a germinação de sementes seja baixa e irregular. Com o objetivo de avaliar a emergência de sementes de pequizeiro e o desenvolvimento inicial de mudas oriundas de 16 plantas, aos dez meses após a colheita, na presença e ausência de ácido giberélico (GA3), foram conduzidos dois experimentos. O primeiro foi implantado em delineamento de blocos ao acaso, com parcelas subdivididas, tendo as matrizes nas parcelas e, nas subparcelas, um tratamento de imersão por 48 horas, em água pura e em solução de 500 mg L-1 de GA3. Foram realizadas avaliações a cada sete dias, para determinação da percentagem final, tempo médio e índice de velocidade de emergência. Para o segundo experimento, foi utilizado delineamento inteiramente casualizado, com número variado de repetições, de acordo com o número de mudas obtidas no primeiro experimento. Para percentagem, índice de velocidade e tempo médio de emergência, o efeito dos tratamentos foi significativo, sendo que, para os dois primeiros, houve interação significativa entre genótipo e tratamento, para superação da dormência. Observou-se que a utilização de 500 mg L-1 de ácido giberélico pode minimizar a dormência em sementes de Caryocar brasiliense e que o crescimento das matrizes em campo foi linear e contínuo, ao longo do tempo.Escola de Agronomia - Universidade Federal de Goiás2012-12-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa Experimentalapplication/pdfhttps://revistas.ufg.br/pat/article/view/18114Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 42, n. 4, Oct./Dec. 2012; 416-423Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 42, n. 4, out./dez. 2012; 416-423Pesquisa Agropecuária Tropical; v. 42, n. 4, out./dez. 2012; 416-4231983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/pat/article/view/18114/12629Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)info:eu-repo/semantics/openAccessLeão, Érica FernandesPeixoto, NeiMorais Júnior, Odilon Peixoto de2020-07-10T11:48:37Zoai:ojs.revistas.ufg.br:article/18114Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:55:55.433327Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv Seedling emergence of Caryocar brasiliense according to mother plant and gibberellic acid use
Emergência de plântulas de pequizeiro em função da planta matriz e uso de ácido giberélico
title Seedling emergence of Caryocar brasiliense according to mother plant and gibberellic acid use
spellingShingle Seedling emergence of Caryocar brasiliense according to mother plant and gibberellic acid use
Leão, Érica Fernandes
Caryocar brasiliense Camb.
seeds dormancy
Brazilian Savannah native fruit trees.
Caryocar brasiliense Camb.
dormência de sementes
frutíferas do Cerrado.
title_short Seedling emergence of Caryocar brasiliense according to mother plant and gibberellic acid use
title_full Seedling emergence of Caryocar brasiliense according to mother plant and gibberellic acid use
title_fullStr Seedling emergence of Caryocar brasiliense according to mother plant and gibberellic acid use
title_full_unstemmed Seedling emergence of Caryocar brasiliense according to mother plant and gibberellic acid use
title_sort Seedling emergence of Caryocar brasiliense according to mother plant and gibberellic acid use
author Leão, Érica Fernandes
author_facet Leão, Érica Fernandes
Peixoto, Nei
Morais Júnior, Odilon Peixoto de
author_role author
author2 Peixoto, Nei
Morais Júnior, Odilon Peixoto de
author2_role author
author
dc.contributor.author.fl_str_mv Leão, Érica Fernandes
Peixoto, Nei
Morais Júnior, Odilon Peixoto de
dc.subject.por.fl_str_mv Caryocar brasiliense Camb.
seeds dormancy
Brazilian Savannah native fruit trees.
Caryocar brasiliense Camb.
dormência de sementes
frutíferas do Cerrado.
topic Caryocar brasiliense Camb.
seeds dormancy
Brazilian Savannah native fruit trees.
Caryocar brasiliense Camb.
dormência de sementes
frutíferas do Cerrado.
description Caryocar brasiliense is one of the most promising native fruit trees from the Brazilian Savannah, in the Goiás State, Brazil, concerning commercial production. However, the low and irregular germination of its seeds can be an obstacle for producing it on a large scale. Aiming at evaluating the emergence of Caryocar brasiliense seeds and the initial growth of seedlings from 16 plants, ten months after harvesting, with and without gibberellic acid (GA3), two field trials were carried out. The first one included a randomized split-plot blocks design, with mother plants in the plots, and an immersion treatment for 48 hours, in pure water and in a solution of 500 mg L-1 of GA3, in subplots. Every seven days, emergence final percentage, average time and speed index were evaluated. The second field trial used a completely randomized design, with different numbers of replications, according with the number of seedlings from the first experiment. For emergence percentage, speed index and average time, treatments presented a significant effect, with a significant interaction between genotype and treatment, for emergence percentage and speed index, to overcome dormancy. It was observed that the use of 500 mg L-1 of gibberellic acid may minimize dormancy in Caryocar brasiliense seeds and that the field growth of mother plants was linear and continuous over time.
publishDate 2012
dc.date.none.fl_str_mv 2012-12-07
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Pesquisa Experimental
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/18114
url https://revistas.ufg.br/pat/article/view/18114
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/18114/12629
dc.rights.driver.fl_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 42, n. 4, Oct./Dec. 2012; 416-423
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 42, n. 4, out./dez. 2012; 416-423
Pesquisa Agropecuária Tropical; v. 42, n. 4, out./dez. 2012; 416-423
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
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