Mineral and vegetable oils as effective dormancy release agents for sustainable viticulture in a sub-tropical region

Botelho, Renato Vasconcelos; Sato, Alessandro Jefferson; Maia, Aline José; Marchi, Thiago De; Oliari, Ires Cristina Ribeiro; Rombolà, Adamo Domenico

doi:10.1080/14620316.2016.1162024

Cited by 5 publications

(7 citation statements)

References 22 publications

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“…Compared to no treatment in 'Carmen' grapevine, 2% (v/v) vegetable oil and 2% (v/v) mineral oil have been found to increase bud-break percentage, both independently and in combination with one another, which agrees with current results [49]. Additionally, it was shown that the combination of the two oils enhanced the bud-break percentage in a similar manner to 3% (v/v) HC, which may be considered for future optimisation purposes.…”

Section: Small-scale Field Trial: Evaluation Of Plant Biostimulants S...supporting

confidence: 90%

“…It was notable that BB 3% had produced slightly better results than 1% H 2 O 2 . Indeed, mineral and vegetable oils have been reported to enhance bud-break properties in woody perennial crops, such as grapevine and pear; however, they generally have not produced results superior to HC treatment [49,59,60]. This is in harmony with current results for BB 3%.…”

Section: Small-scale Field Trial: Evaluation Of Plant Biostimulants S...supporting

confidence: 63%

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Plant Biostimulants Enhance Bud Break in Vitis vinifera Crimson Seedless Using Combination Treatments

Venter,

Avenant,

Kotze

et al. 2024

Horticulturae

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The rest-breaking agent, hydrogen cyanamide (HC), can substitute insufficient chill unit accumulation in Vitis vinifera and induce uniform bud-break; however, due to its toxicity it is being banned. In South Africa, red seedless grapes, including V. vinifera Crimson Seedless (CS), are the largest table grape export group; therefore, replacing HC in V. vinifera CS is crucial. This study aimed to confirm the molecular triggers induced by HC and assess the bud-break-enhancing abilities of commercial plant biostimulants. Forced bud-break assay experiments using V. vinifera CS single-node cuttings and a small-scale field trial were performed. Results demonstrated that increased chill unit accumulation (CUA) reduced HC efficacy. Bud-break started between 10 and 20 days after treatment, irrespective of final CUA. The small-scale field trial found that HC 3% and biostimulants were similar to the negative control. The treatment of dormant grapevine compound buds with nitric oxide (NO), hydrogen peroxide (H2O2), and hypoxia trigger dormancy release to a certain extent, supporting the molecular models proposed for HC action. NO, H2O2, and hypoxia, in combination with PBs, may potentially replace HC; however, this needs to be confirmed in future experiments.

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Section: Small-scale Field Trial: Evaluation Of Plant Biostimulants S...supporting

confidence: 90%

Section: Small-scale Field Trial: Evaluation Of Plant Biostimulants S...supporting

confidence: 63%

Plant Biostimulants Enhance Bud Break in Vitis vinifera Crimson Seedless Using Combination Treatments

Venter,

Avenant,

Kotze

et al. 2024

Horticulturae

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“…Several works in kiwi, pistachio ( Pistacia vera L.), apple and Prunus spp. have indicated that the optimal concentration of agrochemicals like Armobreak™ and mineral oil is 3% ( Erez and Zur, 1981 ; Küden et al, 1995 ; Sagredo et al, 2005 ; Erez et al, 2008 ; Petri et al, 2014 ; Botelho et al, 2016 ; Hernández and Craig, 2016 ). Nevertheless, these products have not solved the problems linked to the promotion of endodormancy release.…”

Section: Effects Of Agrochemicals On Endodormancy Releasementioning

confidence: 99%

“…In kiwi, hydrogen cyanamide and Erger ® also boosted production, resulting in bigger fruits and also a more uniform fruit size than in control trees ( Ardiles and Ayala, 2017 ). Furthermore, alternative treatments in grapevine using the vegetable oil Natur’oleo ® + mineral oil or thioureas have been found to increase the annual yield compared to untreated plants ( Botelho et al, 2016 ). In contrast to these results, kiwi trees treated with Syncron ® + NitroActive ® and the less popular agrochemicals that promote endodormancy release (Bluprins ® + Bluact ® , Kiplant HB15 ® + Kiplant Inducer ® , Siberio ® + Siberion ® , W-Uniformity Superplus ® , and Organihum Plus ® + Organihum B-Plus ® ) showed a decrease in production compared to the control trees ( Tavares et al, 2018 ).…”

Section: Effects Of the Different Agrochemicals On Productionmentioning

confidence: 99%

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Advancing Endodormancy Release in Temperate Fruit Trees Using Agrochemical Treatments

2022

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Endodormancy in temperate fruit trees like Prunus is a protector state that allows the trees to survive in the adverse conditions of autumn and winter. During this process, plants accumulate chill hours. Flower buds require a certain number of chill hours to release from endodormancy, known as chilling requirements. This step is crucial for proper flowering and fruit set, since incomplete fulfillment of the chilling requirements produces asynchronous flowering, resulting in low quality flowers, and fruits. In recent decades, global warming has endangered this chill accumulation. Because of this fact, many agrochemicals have been used to promote endodormancy release. One of the first and most efficient agrochemicals used for this purpose was hydrogen cyanamide. The application of this agrochemical has been found to advance endodormancy release and synchronize flowering time, compressing the flowering period and increasing production in many species, including apple, grapevine, kiwi, and peach. However, some studies have pointed to the toxicity of this agrochemical. Therefore, other non-toxic agrochemicals have been used in recent years. Among them, Erger® + Activ Erger® and Syncron® + NitroActive® have been the most popular alternatives. These two treatments have been shown to efficiently advance endodormancy release in most of the species in which they have been applied. In addition, other less popular agrochemicals have also been applied, but their efficiency is still unclear. In recent years, several studies have focused on the biochemical and genetic variation produced by these treatments, and significant variations have been observed in reactive oxygen species, abscisic acid (ABA), and gibberellin (GA) levels and in the genes responsible for their biosynthesis. Given the importance of this topic, future studies should focus on the discovery and development of new environmentally friendly agrochemicals for improving the modulation of endodormancy release and look more deeply into the effects of these treatments in plants.

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Transcriptome analysis revealed hormone signaling response of grapevine buds to strigolactones

Zhuo

Chen

et al. 2021

Scientia Horticulturae

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Mineral and vegetable oils as effective dormancy release agents for sustainable viticulture in a sub-tropical region

Cited by 5 publications

References 22 publications

Plant Biostimulants Enhance Bud Break in Vitis vinifera Crimson Seedless Using Combination Treatments

Plant Biostimulants Enhance Bud Break in Vitis vinifera Crimson Seedless Using Combination Treatments

Advancing Endodormancy Release in Temperate Fruit Trees Using Agrochemical Treatments

Transcriptome analysis revealed hormone signaling response of grapevine buds to strigolactones

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