Potted platycodon production in response to paclobutrazol
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Pesquisa Agropecuária Tropical (Online) |
Texto Completo: | https://revistas.ufg.br/pat/article/view/68949 |
Resumo: | Platycodon grandiflorus is an ornamental species that can be marketed as a potted flower; however, it has fragile and bending floral stems. Plant growth regulators, such as paclobutrazol, are compounds that reduce stem elongation, enabling the production of plants with a more compact formation. This study aimed to evaluate the effects of paclobutrazol on platycodon growth, in a greenhouse. A completely randomized blocks experimental design was used in a 4 × 5 factorial scheme, with four replicates. The treatments consisted of four varieties of ‘Astra Semi-Double’ platycodon (Blue, Lavender, Pink and White) and five paclobutrazol doses (0, 1.25, 2.5, 3.75 and 5.0 mg pot-1). The paclobutrazol application did not affect the stem diameter, number of leaves, days until anthesis, number of flowers or flower buds, and flower diameter. The shoot length, leaf area and shoot dry mass decreased with higher doses of the growth regulator. Lavender showed the highest values for shoot length, number of leaves, leaf area and shoot dry mass. Pink had the earliest anthesis, followed by Blue and White, whereas Lavender had the latest anthesis. The dose of 3.75 mg pot-1 of paclobutrazol efficiently controlled the growth and improved the visual quality of all the platycodon varieties. KEYWORDS: Platycodon grandiflorus (Jacq.) A. DC., balloon flower, plant growth regulator. |
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Potted platycodon production in response to paclobutrazolProdução de platycodon em vaso em resposta a paclobutrazolPlatycodon grandiflorus is an ornamental species that can be marketed as a potted flower; however, it has fragile and bending floral stems. Plant growth regulators, such as paclobutrazol, are compounds that reduce stem elongation, enabling the production of plants with a more compact formation. This study aimed to evaluate the effects of paclobutrazol on platycodon growth, in a greenhouse. A completely randomized blocks experimental design was used in a 4 × 5 factorial scheme, with four replicates. The treatments consisted of four varieties of ‘Astra Semi-Double’ platycodon (Blue, Lavender, Pink and White) and five paclobutrazol doses (0, 1.25, 2.5, 3.75 and 5.0 mg pot-1). The paclobutrazol application did not affect the stem diameter, number of leaves, days until anthesis, number of flowers or flower buds, and flower diameter. The shoot length, leaf area and shoot dry mass decreased with higher doses of the growth regulator. Lavender showed the highest values for shoot length, number of leaves, leaf area and shoot dry mass. Pink had the earliest anthesis, followed by Blue and White, whereas Lavender had the latest anthesis. The dose of 3.75 mg pot-1 of paclobutrazol efficiently controlled the growth and improved the visual quality of all the platycodon varieties. KEYWORDS: Platycodon grandiflorus (Jacq.) A. DC., balloon flower, plant growth regulator.Platycodon grandiflorus é uma espécie ornamental que pode ser comercializada como flor de vaso; porém, apresenta ramos florais frágeis e pendentes. Reguladores de crescimento, como o paclobutrazol, são compostos que reduzem o alongamento do caule, permitindo a produção de plantas com formação mais compacta. Objetivou-se avaliar os efeitos de paclobutrazol no crescimento de platycodon, em casa-de-vegetação. O delineamento experimental foi em blocos inteiramente casualizados, em esquema fatorial 4 × 5, com quatro repetições. Os tratamentos consistiram de quatro variedades de platycodon ‘Astra Semi-Double’ (Blue, Lavender, Pink e White) e cinco doses de paclobutrazol (0; 1,25; 2,5; 3,75; e 5,0 mg vaso-1). A aplicação de paclobutrazol não afetou o diâmetro do caule, número de folhas, dias até a antese, número de flores ou botões florais e diâmetro da flor. O comprimento da parte aérea, área foliar e massa seca da parte aérea decresceram com o aumento da dose do regulador de crescimento. Lavender apresentou os maiores valores de comprimento da parte aérea, número de folhas, área foliar e massa seca da parte aérea. Pink teve a antese mais precoce, seguida de Blue e White, enquanto Lavender teve a antese mais tardia. A dose de 3,75 mg vaso-1 de paclobutrazol eficientemente controlou o crescimento e melhorou a qualidade visual de todas as variedades de platycodon. PALAVRAS-CHAVE: Platycodon grandiflorus (Jacq.) A. DC., flor-balão, regulador de crescimento vegetal.Escola de Agronomia - Universidade Federal de Goiás2021-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/68949Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 51 (2021); e68949Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 51 (2021); e68949Pesquisa Agropecuária Tropical; v. 51 (2021); e689491983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/68949/37230Copyright (c) 2021 Pesquisa Agropecuária Tropicalinfo:eu-repo/semantics/openAccessSabino, João Henrique FerreiraGrossi, José Antonio SaraivaSilva, Toshik Iarley daVerly, Otávio MirandaMartins Filho, SebastiãoBarbosa, José Geraldo2021-10-01T18:48:35Zoai:ojs.revistas.ufg.br:article/68949Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:32.964432Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
Potted platycodon production in response to paclobutrazol Produção de platycodon em vaso em resposta a paclobutrazol |
title |
Potted platycodon production in response to paclobutrazol |
spellingShingle |
Potted platycodon production in response to paclobutrazol Sabino, João Henrique Ferreira |
title_short |
Potted platycodon production in response to paclobutrazol |
title_full |
Potted platycodon production in response to paclobutrazol |
title_fullStr |
Potted platycodon production in response to paclobutrazol |
title_full_unstemmed |
Potted platycodon production in response to paclobutrazol |
title_sort |
Potted platycodon production in response to paclobutrazol |
author |
Sabino, João Henrique Ferreira |
author_facet |
Sabino, João Henrique Ferreira Grossi, José Antonio Saraiva Silva, Toshik Iarley da Verly, Otávio Miranda Martins Filho, Sebastião Barbosa, José Geraldo |
author_role |
author |
author2 |
Grossi, José Antonio Saraiva Silva, Toshik Iarley da Verly, Otávio Miranda Martins Filho, Sebastião Barbosa, José Geraldo |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Sabino, João Henrique Ferreira Grossi, José Antonio Saraiva Silva, Toshik Iarley da Verly, Otávio Miranda Martins Filho, Sebastião Barbosa, José Geraldo |
description |
Platycodon grandiflorus is an ornamental species that can be marketed as a potted flower; however, it has fragile and bending floral stems. Plant growth regulators, such as paclobutrazol, are compounds that reduce stem elongation, enabling the production of plants with a more compact formation. This study aimed to evaluate the effects of paclobutrazol on platycodon growth, in a greenhouse. A completely randomized blocks experimental design was used in a 4 × 5 factorial scheme, with four replicates. The treatments consisted of four varieties of ‘Astra Semi-Double’ platycodon (Blue, Lavender, Pink and White) and five paclobutrazol doses (0, 1.25, 2.5, 3.75 and 5.0 mg pot-1). The paclobutrazol application did not affect the stem diameter, number of leaves, days until anthesis, number of flowers or flower buds, and flower diameter. The shoot length, leaf area and shoot dry mass decreased with higher doses of the growth regulator. Lavender showed the highest values for shoot length, number of leaves, leaf area and shoot dry mass. Pink had the earliest anthesis, followed by Blue and White, whereas Lavender had the latest anthesis. The dose of 3.75 mg pot-1 of paclobutrazol efficiently controlled the growth and improved the visual quality of all the platycodon varieties. KEYWORDS: Platycodon grandiflorus (Jacq.) A. DC., balloon flower, plant growth regulator. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-10-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Avaliado por pares |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistas.ufg.br/pat/article/view/68949 |
url |
https://revistas.ufg.br/pat/article/view/68949 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/pat/article/view/68949/37230 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2021 Pesquisa Agropecuária Tropical info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2021 Pesquisa Agropecuária Tropical |
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]; Vol. 51 (2021); e68949 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 51 (2021); e68949 Pesquisa Agropecuária Tropical; v. 51 (2021); e68949 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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1799874821097521152 |