Treating sunflower seeds subjected to ozonization

Rodrigues, Vitor Oliveira; Costa, Fabiano Ramos; Nery, Marcela Carlota; Cruz, Sara Michelly; Melo, Soryana Gonçalves Ferreira de; Carvalho, María Laene Moreira de

doi:10.1590/2317-1545v37n3148582

Cited by 15 publications

(12 citation statements)

References 18 publications

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“…Corroborating with other authors, the ozone gas has the potential to be used in the plant pathogens control, not only in the environments disinfestation, water treatment and in the food sterilization, as well as the soybean seeds treatment, as well as other cultures of agricultural importance, as highlighted by Rodrigues et al (2015) upon evaluating the ozone potential in the sunflower seeds and corn seeds treatment (White et al, 2010(White et al, , 2013, which did not have their physiological quality negatively affected when the ozone gas was used in the microorganisms control present in the seeds.…”

Section: Discussionsupporting

confidence: 54%

“…Seeds of two soybean cultivars crop harvested in 2016/2017 (Soybean RR and Soybean Intacta RR2 PRO) were provided by the company Syngenta® and treated with ozone gas at Ozone and Life® company. Using the ozone generator, model A and L 35.0 rm, the seeds were placed in a continuous flow chamber constructed according to the specifications of Rodrigues et al (2015) and subjected to five exposure times and two concentrations, as pest control methods. After the treatments the seeds physiological quality was evaluated by the following tests and determinations:…”

Section: Methodsmentioning

confidence: 99%

“…Although effective, there are still few studies that prove their efficiency in the seeds treatment, especially those undertaken in sunflower seeds by Rodrigues et al (2015) and corn (Mylona, Kogkaki, Sulyok, & Magan, 2014;White, Murphy, Bern, & van Leeuwen, 2010;White et al, 2013). Therefore, it is necessary to carry out tests to verify the ozone gas effectiveness in the plant pathogens control in other species as well as the changes that may occur on the seeds physiological quality.…”

Section: Introductionmentioning

confidence: 99%

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Sanitary and Physiological Quality of Soybean Seeds Treated With Ozone

Rodrigues¹,

Penido²,

Pereira³

et al. 2019

JAS

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Widely used, the seeds chemical treatment can cause physiological quality loss due to phytotoxicity that the active principles may cause. In this context, the ozone gas stands out (O3) as efficient agent biocide, however its use in the pathogens control and their effects on the seeds physiological quality are still little studied. In this context, the objective was to evaluate the ozone gas efficiency as a controller agent of plant pathogens and its effect on the physiological quality of soybean seeds. For this, seeds of two soybean cultivars were treated with ozone gas in two concentrations (15 and 25 g/m³) and in five exposure times (0, 20, 40, 60 and 120 minutes). After the treatments, the seeds quality was evaluated by tests of sanity, tetrazolium, first germination count, germination percentage, initial stand, emergence percentage, emergence speed index, electrical conductivity, accelerated aging and enzymatic activity. Six pathogens were found in seeds of soybeans evaluated, namely: Phomopsis sp., Penicillium sp., Aspergillus sp., Fusarium sp., Cercospora kikuchi and Alternaria sp. It was concluded that the sanitary treatment with ozone gas reduces the incidence of these fungi and does not compromise the physiological quality of soybean seeds.

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Section: Discussionsupporting

confidence: 54%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Sanitary and Physiological Quality of Soybean Seeds Treated With Ozone

Rodrigues¹,

Penido²,

Pereira³

et al. 2019

JAS

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“…In this study, cold plasma was generated using he-lium in atmospheric air because this gas enables the creation of reactive species at lower power levels compared with heavier gasses such as argon. Other studies have documented partial to full elimination of Fusarium using ozone or plasma devices using air or argon as feeder gases (Abbasian et al, 2017;Filatova et al, 2013;Niyomkam, 2008;Rodrigues et al, 2015) The use of cold plasma offers a new opportunity for disease control (Adhikari et al, 2020). However, additional studies are required to improve and standardize the application of cold plasma for decontamination and disinfection of agricultural crops (Adhikari et al, 2020).…”

Section: Hortsciencementioning

confidence: 99%

Cold Plasma Treatment Strategies for the Control of Fusarium oxysporum f. sp. basilici in Sweet Basil

Homa¹,

Barney²,

Davis³

et al. 2021

horts

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Fusarium wilt of basil (FOB), caused by Fusarium oxysporum f. sp. basilici, is an economically damaging disease of field- and greenhouse-grown sweet basil. Growers have observed a resurgence of FOB and susceptibility in FOB-resistant cultivars. Because currently available chemical, biological, and cultural control methods are costly, unsustainable, ineffective, or challenging to implement, new strategies of FOB control are needed. Cold plasma is becoming an increasingly important experimental technology in the food and agricultural industry for pathogen decontamination. To understand the effect of cold plasma treatment on FOB incidence and severity, experiments were conducted by treating FOB mycelium, inoculated sweet basil seedlings, and seeds with various experimental cold plasma treatment devices, all using helium as a feed gas. Initial results indicated that while the cold plasma jet treatment did not result in a significant reduction in mean mycelial growth rate or virulence of the pathogen, direct cold plasma jet treatments on seedlings, as well as a cold plasma dielectric barrier discharge treatment on seeds, did exhibit varying efficacies against FOB. Control of FOB appeared to be strongly dependent on the exposure time to cold plasma. These findings can aid in the standardization of a cold plasma treatment for the commercial basil seed and transplant industry.

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“…The practice of using fungicides to treat maize seeds has still been the most employed by farmers. However, new technologies have been adopted in the control of fungi in grains, such as the use of ozone gas (Alencar et al, 2012;Rodrigues et al, 2015;Sanchez et al, 2016;.…”

Section: Introductionmentioning

confidence: 99%

Physiological and sanitary quality of maize seeds preconditioned in ozonated water

Maximiano

Carmona

Souza

et al. 2018

Rev. bras. eng. agríc. ambient.

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A B S T R A C TThe technique of controlled hydration of seeds has been used as a method of physiological conditioning to improve their performance in the field. Solution aeration with ozone gas is a promising option in controlling phytopathogens. The objective of the present study was to evaluate the physiological and sanitary quality of maize seeds preconditioned in ozonated water. In the evaluation of the physiological and sanitary quality, maize seeds were submitted to four concentrations of ozone gas (0, 10, 20 and 30 mg L -1 ) for five soaking periods (0, 30, 60, 90 and 120 min), with four replicates. Preconditioning maize seeds in ozonated water, followed by natural drying, resulted in a more pronounced initial development of seedlings, measured by means of the emergence speed index, seedling dry matter, seedling length and radicle length, compared with untreated seeds. The initial development of maize seedlings was intensified by the exposure of seeds to water, especially at 0 and 30 mg L -1 ozone concentrations during the period from 60 to 90 min. Preconditioning maize seeds in ozonated water did not affect the control of Fusarium sp. The fungicide Carbendazim + Thiram resulted in 100% control of Fusarium sp. in the seeds.Qualidade fisiológica e sanitária de sementes de milho pré-condicionadas em água ozonizada R E S U M O A técnica de hidratação controlada das sementes vem sendo utilizada como método de condicionamento fisiológico, objetivando melhorar o seu desempenho no campo. A aeração da solução com gás ozônio constitui opção promissora no controle de fitopatógenos. O objetivo do presente trabalho foi estudar a qualidade fisiológica e sanitária de sementes de milho pré-condicionada em água ozonizada. Na avaliação da qualidade fisiológica e sanitária, as sementes de milho foram submetidas a quatro concentrações de gás ozônio (0, 10, 20 e 30 mg L -1 ) em cinco períodos de embebição (0, 30, 60, 90 e 120 min), com quatro repetições. A técnica de pré-condicionamento das sementes de milho em água ozonizada, seguida de secagem natural, acarretou desenvolvimento inicial mais acentuado das plântulas de milho, avaliado por meio do índice de velocidade de emergência, matéria seca de plântulas, comprimento de plântula e radícula, quando comparadas com as sementes não tratadas. O desenvolvimento inicial das plântulas de milho foi intensificado mediante exposição das sementes à água, especialmente nas concentrações de 0 e 30 mg L -1 de ozônio, durante o período de 60 a 90 min. O pré-condicionamento das sementes de milho em água ozonizada não afetou o controle de Fusarium sp. O fungicida carbendazim+thiram resultou em 100% de controle de Fusarium sp. nas sementes.

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Treating sunflower seeds subjected to ozonization

Cited by 15 publications

References 18 publications

Sanitary and Physiological Quality of Soybean Seeds Treated With Ozone

Sanitary and Physiological Quality of Soybean Seeds Treated With Ozone

Cold Plasma Treatment Strategies for the Control of Fusarium oxysporum f. sp. basilici in Sweet Basil

Physiological and sanitary quality of maize seeds preconditioned in ozonated water

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