Initial growth of clonal seedlings of Passiflora mucronata genotypes in response to paclobutrazol concentrations

Detalhes bibliográficos
Autor(a) principal: Oliveira, Patrick Alves de
Data de Publicação: 2020
Outros Autores: Teixeira, Ariany das Graças, Canal, Guilherme Bravim, Lima, Paula Aparecida Muniz de, Jacomino, Gardênia Rosa de Lisbôa, Alexandre, Rodrigo Sobreira, Lopes, José Carlos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Research, Society and Development
Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/10862
Resumo: Paclobutrazol (PBZ) is a plant growth regulator of the triazole group that can block the biosynthesis of gibberellic acid, resulting in reduced plant height and increased stem diameter. This study aimed to evaluate the effect of different paclobutrazol concentrations on seedling quality of Passiflora mucronata Lam. Two Passiflora mucronata genotypes were used, one resistant (G5) and one tolerant (G7) to fusariosis, prepared as cuttings treated with PBZ. The experimental design was completely randomized, in a 2 x 4 factorial arrangement corresponding to two genotypes (G5 and G7) and four PBZ concentrations (0, 5, 10, and 15 mg plant-1), with three replications of four plants. Data were subjected to analysis of variance, regression analysis, and the F-test, followed by Pearson’s correlation test between variables. PBZ promoted an increase in the plagiotropic shoot diameter and the leaf area index of genotypes G5 and G7, in addition to increased shoot length in genotype G5 and increased number of leaves in genotype G7. PBZ also resulted in increased photosynthesis and stomatal conductance. There was a positive correlation for genotype G5, between the plagiotropic shoot diameter and the leaf transpiration rate, and for genotype G7, between the plagiotropic shoot diameter and the number of leaves. Genotypes G5 and G7 showed different phenotypic responses when subjected to PBZ doses, highlighting the intraspecific divergence of the species.
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spelling Initial growth of clonal seedlings of Passiflora mucronata genotypes in response to paclobutrazol concentrationsEl crecimiento inicial de las plántulas clonales de Passiflora mucronata genotipos en respuesta a las concentraciones de paclobutrazolCrescimento inicial de mudas clonais de genótipos de Passiflora mucronata submetidos a doses de paclobutrazolPassifloraceaePassion fruitWild speciesTriazole.PassifloraceaeFruta de la pasiónEspecies silvestresTriazole.PassifloraceaeMaracujáEspécie silvestreTriazol.Paclobutrazol (PBZ) is a plant growth regulator of the triazole group that can block the biosynthesis of gibberellic acid, resulting in reduced plant height and increased stem diameter. This study aimed to evaluate the effect of different paclobutrazol concentrations on seedling quality of Passiflora mucronata Lam. Two Passiflora mucronata genotypes were used, one resistant (G5) and one tolerant (G7) to fusariosis, prepared as cuttings treated with PBZ. The experimental design was completely randomized, in a 2 x 4 factorial arrangement corresponding to two genotypes (G5 and G7) and four PBZ concentrations (0, 5, 10, and 15 mg plant-1), with three replications of four plants. Data were subjected to analysis of variance, regression analysis, and the F-test, followed by Pearson’s correlation test between variables. PBZ promoted an increase in the plagiotropic shoot diameter and the leaf area index of genotypes G5 and G7, in addition to increased shoot length in genotype G5 and increased number of leaves in genotype G7. PBZ also resulted in increased photosynthesis and stomatal conductance. There was a positive correlation for genotype G5, between the plagiotropic shoot diameter and the leaf transpiration rate, and for genotype G7, between the plagiotropic shoot diameter and the number of leaves. Genotypes G5 and G7 showed different phenotypic responses when subjected to PBZ doses, highlighting the intraspecific divergence of the species.Paclobutrazol (PBZ) es un regulador de crecimiento vegetal del grupo triazois que puede bloquear la biosíntesis del ácido giberleico, lo que resulta en una reducción en la altura y un mayor espesor del tallo de la planta. El objetivo de este estudio fue estudiar el efecto de diferentes dosis de paclobutrazol en la calidad de las plántulas Passiflora mucronata Lam. Se utilizaron dos genotipos de Passiflora mucronata, G5 (resistente) y G7 (tolerante) a fusariosis, preparado como esquejes tratados con PBZ. El diseño experimental fue completamente aleatorizado, en una disposición factorial de 2 x 4 correspondiente a dos genotipos (G5 y G7) y cuatro concentraciones de PBZ (0, 5, 10 y 15 mg planta-1), con tres repeticiones de cuatro plantas. Los datos fueron sometidos a análisis de varianza, análisis de regresión y la prueba F, seguido de la prueba de correlación de Pearson entre variables. El PBZ promovió un aumento en el diámetro del brote plagiotrópico y el índice de área de la hoja de los genótipos G5 y G7; aumentó la longitud de los brotes del genotipo G5 y el número de hojas del genotipo G7. PBZ también resultó en un aumento de la fotosíntesis y la conductancia estomatal. Hubo una correlación positiva para el genotipo G5 entre el diámetro del brote plagiotrópico y la tasa de transpiración de la hoja, y para el genotipo G7 entre el diámetro del brote plagiotrópico y el número de hojas. Los genotipos G5 y G7 mostraron diferentes respuestas fenotípicas cuando se sometieron a dosis de PBZ, proporcionando la divergencia intraespecífica de la especie.O paclobutrazol (PBZ) é um regulador de crescimento de plantas do grupo dos triazois, capaz de bloquear a biossíntese do ácido giberélico, acarretando a redução da altura e aumento da espessura da haste da planta. Objetivou-se estudar o efeito de diferentes doses de paclobutrazol sobre a qualidade das mudas de Passiflora mucronata Lam. Foram utilizados dois genótipos de Passiflora mucronata, G5 (resistente) e G7 (tolerante) à fusariose, oriundos de estaquia tratados com PBZ. O delineamento experimental utilizado foi inteiramente casualizado, em esquema fatorial 2x4, dois genótipos (G5 e G7) e quatro concentrações de PBZ (0; 5; 10 e 15 mg planta-1) com três repetições de quatro plantas. Os dados foram submetidos a uma análise de variância geral, de regressão e teste de F, e realizado um teste de correlação linear de Pearson entre as variáveis. O PBZ promoveu aumento do diâmetro do broto plagiotrópico e do índice de área foliar nos genótipos G5 e G7; aumentou o comprimento dos brotos do genótipo G5 e o número de folhas do genótipo G7. O PBZ resultou na elevação da fotossíntese e condutância estomática. Houve correlação positiva para o genótipo G5 entre o diâmetro do broto plagiotrópico e a taxa de transpiração foliar e para o genótipo G7 entre a variável do diâmetro do broto plagiotrópico e o número de folhas. Os genótipos G5 e G7 apresentaram respostas fenotípicas diferentes quando submetidas às doses de PBZ, proporcionando divergência intraespecífica da espécie.Research, Society and Development2020-12-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/1086210.33448/rsd-v9i12.10862Research, Society and Development; Vol. 9 No. 12; e10891210862Research, Society and Development; Vol. 9 Núm. 12; e10891210862Research, Society and Development; v. 9 n. 12; e108912108622525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/10862/9718Copyright (c) 2020 Patrick Alves de Oliveira; Ariany das Graças Teixeira; Guilherme Bravim Canal; Paula Aparecida Muniz de Lima; Gardênia Rosa de Lisbôa Jacomino; Rodrigo Sobreira Alexandre; José Carlos Lopeshttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessOliveira, Patrick Alves de Teixeira, Ariany das Graças Canal, Guilherme Bravim Lima, Paula Aparecida Muniz de Jacomino, Gardênia Rosa de Lisbôa Alexandre, Rodrigo Sobreira Lopes, José Carlos2020-12-30T23:32:22Zoai:ojs.pkp.sfu.ca:article/10862Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:32:49.955049Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false
dc.title.none.fl_str_mv Initial growth of clonal seedlings of Passiflora mucronata genotypes in response to paclobutrazol concentrations
El crecimiento inicial de las plántulas clonales de Passiflora mucronata genotipos en respuesta a las concentraciones de paclobutrazol
Crescimento inicial de mudas clonais de genótipos de Passiflora mucronata submetidos a doses de paclobutrazol
title Initial growth of clonal seedlings of Passiflora mucronata genotypes in response to paclobutrazol concentrations
spellingShingle Initial growth of clonal seedlings of Passiflora mucronata genotypes in response to paclobutrazol concentrations
Oliveira, Patrick Alves de
Passifloraceae
Passion fruit
Wild species
Triazole.
Passifloraceae
Fruta de la pasión
Especies silvestres
Triazole.
Passifloraceae
Maracujá
Espécie silvestre
Triazol.
title_short Initial growth of clonal seedlings of Passiflora mucronata genotypes in response to paclobutrazol concentrations
title_full Initial growth of clonal seedlings of Passiflora mucronata genotypes in response to paclobutrazol concentrations
title_fullStr Initial growth of clonal seedlings of Passiflora mucronata genotypes in response to paclobutrazol concentrations
title_full_unstemmed Initial growth of clonal seedlings of Passiflora mucronata genotypes in response to paclobutrazol concentrations
title_sort Initial growth of clonal seedlings of Passiflora mucronata genotypes in response to paclobutrazol concentrations
author Oliveira, Patrick Alves de
author_facet Oliveira, Patrick Alves de
Teixeira, Ariany das Graças
Canal, Guilherme Bravim
Lima, Paula Aparecida Muniz de
Jacomino, Gardênia Rosa de Lisbôa
Alexandre, Rodrigo Sobreira
Lopes, José Carlos
author_role author
author2 Teixeira, Ariany das Graças
Canal, Guilherme Bravim
Lima, Paula Aparecida Muniz de
Jacomino, Gardênia Rosa de Lisbôa
Alexandre, Rodrigo Sobreira
Lopes, José Carlos
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Oliveira, Patrick Alves de
Teixeira, Ariany das Graças
Canal, Guilherme Bravim
Lima, Paula Aparecida Muniz de
Jacomino, Gardênia Rosa de Lisbôa
Alexandre, Rodrigo Sobreira
Lopes, José Carlos
dc.subject.por.fl_str_mv Passifloraceae
Passion fruit
Wild species
Triazole.
Passifloraceae
Fruta de la pasión
Especies silvestres
Triazole.
Passifloraceae
Maracujá
Espécie silvestre
Triazol.
topic Passifloraceae
Passion fruit
Wild species
Triazole.
Passifloraceae
Fruta de la pasión
Especies silvestres
Triazole.
Passifloraceae
Maracujá
Espécie silvestre
Triazol.
description Paclobutrazol (PBZ) is a plant growth regulator of the triazole group that can block the biosynthesis of gibberellic acid, resulting in reduced plant height and increased stem diameter. This study aimed to evaluate the effect of different paclobutrazol concentrations on seedling quality of Passiflora mucronata Lam. Two Passiflora mucronata genotypes were used, one resistant (G5) and one tolerant (G7) to fusariosis, prepared as cuttings treated with PBZ. The experimental design was completely randomized, in a 2 x 4 factorial arrangement corresponding to two genotypes (G5 and G7) and four PBZ concentrations (0, 5, 10, and 15 mg plant-1), with three replications of four plants. Data were subjected to analysis of variance, regression analysis, and the F-test, followed by Pearson’s correlation test between variables. PBZ promoted an increase in the plagiotropic shoot diameter and the leaf area index of genotypes G5 and G7, in addition to increased shoot length in genotype G5 and increased number of leaves in genotype G7. PBZ also resulted in increased photosynthesis and stomatal conductance. There was a positive correlation for genotype G5, between the plagiotropic shoot diameter and the leaf transpiration rate, and for genotype G7, between the plagiotropic shoot diameter and the number of leaves. Genotypes G5 and G7 showed different phenotypic responses when subjected to PBZ doses, highlighting the intraspecific divergence of the species.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-14
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://rsdjournal.org/index.php/rsd/article/view/10862
10.33448/rsd-v9i12.10862
url https://rsdjournal.org/index.php/rsd/article/view/10862
identifier_str_mv 10.33448/rsd-v9i12.10862
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/10862/9718
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://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 Research, Society and Development
publisher.none.fl_str_mv Research, Society and Development
dc.source.none.fl_str_mv Research, Society and Development; Vol. 9 No. 12; e10891210862
Research, Society and Development; Vol. 9 Núm. 12; e10891210862
Research, Society and Development; v. 9 n. 12; e10891210862
2525-3409
reponame:Research, Society and Development
instname:Universidade Federal de Itajubá (UNIFEI)
instacron:UNIFEI
instname_str Universidade Federal de Itajubá (UNIFEI)
instacron_str UNIFEI
institution UNIFEI
reponame_str Research, Society and Development
collection Research, Society and Development
repository.name.fl_str_mv Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)
repository.mail.fl_str_mv rsd.articles@gmail.com
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