Initial growth of clonal seedlings of Passiflora mucronata genotypes in response to paclobutrazol concentrations
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , |
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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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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1797052665933332480 |