Gibberellin Inhibitors Molecules as a Safeguard against Secondary Growth in Garlic Plants

Secondary growth in garlic depreciates its visual aspect and thereby renders the crop unviable for trade. Therefore, farmers commonly reduce fertilization and impose drought and oxidative stress caused by high-dose pesticides to reduce secondary growth in garlic plants. However, these procedures can...

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Main Authors: Iandra Rocha Barbosa, Luciana de Paula Cruz, Raissa Iêda Cavalcanti da Costa, Bruno Henrique Rocha, Vinícius Guimarães Nasser, Geraldo Humberto Silva, Willian Rodrigues Macedo
Format: Article
Language:English
Published: MDPI AG 2024-08-01
Series:Crops
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Online Access:https://www.mdpi.com/2673-7655/4/3/27
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author Iandra Rocha Barbosa
Luciana de Paula Cruz
Raissa Iêda Cavalcanti da Costa
Bruno Henrique Rocha
Vinícius Guimarães Nasser
Geraldo Humberto Silva
Willian Rodrigues Macedo
author_facet Iandra Rocha Barbosa
Luciana de Paula Cruz
Raissa Iêda Cavalcanti da Costa
Bruno Henrique Rocha
Vinícius Guimarães Nasser
Geraldo Humberto Silva
Willian Rodrigues Macedo
author_sort Iandra Rocha Barbosa
collection DOAJ
description Secondary growth in garlic depreciates its visual aspect and thereby renders the crop unviable for trade. Therefore, farmers commonly reduce fertilization and impose drought and oxidative stress caused by high-dose pesticides to reduce secondary growth in garlic plants. However, these procedures can be considered adverse, unhealthy, and environmentally inappropriate. To remedy this scenario, we investigated whether spraying growth inhibitors would prevent secondary growth in garlic plants. First, we evaluated the effects of abscisic acid, trinexapac-ethyl, chlormequat chloride, and paclobutrazol treatments on garlic plants grown in polyethylene tanks (250 m<sup>3</sup>). We then analyzed the effects of deficit irrigation combined with the application of trinexapac-ethyl (sprayed two or three times) and the application of trinexapac-ethyl, chlormequat chloride, or paclobutrazol alone (each sprayed two or three times) on garlic plants grown in the field, comparing them with the effects of deficit irrigation (control treatment) alone. The in-field experiment was replicated with the following treatments: control (deficit irrigation) and trinexapac-ethyl (sprayed two or three times) treatments. We analyzed the physiological, biometric, and production parameters affecting secondary growth in garlic plants. We observed that trinexapac-ethyl could efficiently regulate secondary growth without causing physiological disturbances in garlic plants. Our results provide valuable information that will contribute to the development of a sustainable technique to replace the current practices used by farmers to prevent secondary growth in garlic plants.
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spelling doaj-art-ec4834923a0e42e185ff6facac33bd8c2025-08-20T01:55:22ZengMDPI AGCrops2673-76552024-08-014337939910.3390/crops4030027Gibberellin Inhibitors Molecules as a Safeguard against Secondary Growth in Garlic PlantsIandra Rocha Barbosa0Luciana de Paula Cruz1Raissa Iêda Cavalcanti da Costa2Bruno Henrique Rocha3Vinícius Guimarães Nasser4Geraldo Humberto Silva5Willian Rodrigues Macedo6Independent Researcher, Rio Paranaíba 38810-000, BrazilIndependent Researcher, Rio Paranaíba 38810-000, BrazilInstitute of Agricultural Science, Universidade Federal de Viçosa, Campus Rio Paranaíba, Rio Paranaíba 38810-000, BrazilInstitute of Agricultural Science, Universidade Federal de Viçosa, Campus Rio Paranaíba, Rio Paranaíba 38810-000, BrazilDiretoria de Pesquisa e Pós-graduação, Universidade Federal de Viçosa, Campus Rio Paranaíba, Rio Paranaíba 38810-000, BrazilInstitute of Exact Science, Universidade Federal de Viçosa, Campus Rio Paranaíba, Rio Paranaíba 38810-000, BrazilCoordenadoria Especial de Ciências Biológicas e Agronômicas, Universidade Federal de Santa Catarina, Campus Curitibanos, Curitibanos 89520-000, BrazilSecondary growth in garlic depreciates its visual aspect and thereby renders the crop unviable for trade. Therefore, farmers commonly reduce fertilization and impose drought and oxidative stress caused by high-dose pesticides to reduce secondary growth in garlic plants. However, these procedures can be considered adverse, unhealthy, and environmentally inappropriate. To remedy this scenario, we investigated whether spraying growth inhibitors would prevent secondary growth in garlic plants. First, we evaluated the effects of abscisic acid, trinexapac-ethyl, chlormequat chloride, and paclobutrazol treatments on garlic plants grown in polyethylene tanks (250 m<sup>3</sup>). We then analyzed the effects of deficit irrigation combined with the application of trinexapac-ethyl (sprayed two or three times) and the application of trinexapac-ethyl, chlormequat chloride, or paclobutrazol alone (each sprayed two or three times) on garlic plants grown in the field, comparing them with the effects of deficit irrigation (control treatment) alone. The in-field experiment was replicated with the following treatments: control (deficit irrigation) and trinexapac-ethyl (sprayed two or three times) treatments. We analyzed the physiological, biometric, and production parameters affecting secondary growth in garlic plants. We observed that trinexapac-ethyl could efficiently regulate secondary growth without causing physiological disturbances in garlic plants. Our results provide valuable information that will contribute to the development of a sustainable technique to replace the current practices used by farmers to prevent secondary growth in garlic plants.https://www.mdpi.com/2673-7655/4/3/27<i>Allium sativum</i> L.plant growth regulatorsphysiological disordergarlic production
spellingShingle Iandra Rocha Barbosa
Luciana de Paula Cruz
Raissa Iêda Cavalcanti da Costa
Bruno Henrique Rocha
Vinícius Guimarães Nasser
Geraldo Humberto Silva
Willian Rodrigues Macedo
Gibberellin Inhibitors Molecules as a Safeguard against Secondary Growth in Garlic Plants
Crops
<i>Allium sativum</i> L.
plant growth regulators
physiological disorder
garlic production
title Gibberellin Inhibitors Molecules as a Safeguard against Secondary Growth in Garlic Plants
title_full Gibberellin Inhibitors Molecules as a Safeguard against Secondary Growth in Garlic Plants
title_fullStr Gibberellin Inhibitors Molecules as a Safeguard against Secondary Growth in Garlic Plants
title_full_unstemmed Gibberellin Inhibitors Molecules as a Safeguard against Secondary Growth in Garlic Plants
title_short Gibberellin Inhibitors Molecules as a Safeguard against Secondary Growth in Garlic Plants
title_sort gibberellin inhibitors molecules as a safeguard against secondary growth in garlic plants
topic <i>Allium sativum</i> L.
plant growth regulators
physiological disorder
garlic production
url https://www.mdpi.com/2673-7655/4/3/27
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