Efeito de fungicidas no controle de Fusarium graminearum, germinação, emergência e altura de plântulas em sementes de trigo

Júnior, Daniel Garcia; Vechiato, M. H.; Menten, José Otávio Machado

doi:10.1590/s0100-54052008000300018

Cited by 10 publications

(9 citation statements)

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“…Garcia Júnior et al (2008) found no phytotoxic effect of this fungicide on wheat seeds, verifying germination and seedling emergence similar to untreated control seeds, as observed by Mendes et al (2001) with alfalfa seeds and Gally et al (2004) with soybean seeds. Yet, Fessel et al (2003) reported that a very high concentration of fungicide could impair maize seed quality.…”

Section: Resultssupporting

confidence: 78%

“…and Rhizopus sp. in castor bean seeds (David et al, 2014), Leptosphaeria maculans in cabbage seeds (Maude et al, 1984), Fusarium graminearum in wheat seeds (Garcia Júnior et al, 2008), Fusarium moniliforme (Pinto, 2000) and Stenocarpella maydis (Carvalho et al, 2004) in maize seeds. These studies demonstrate that Thiabendazole is effective in controlling fungi in seeds of different species, as observed in the present study with melon seeds.…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, this product has not been registered for vegetable seed treatment. It has been reported that this fungicide does not impair seed physiological quality of several species, such as alfalfa (Mendes et al, 2001), lentil (Chang et al, 2008), maize (Fessel et al, 2003;Carvalho et al, 2004), soybean (Pereira et al, 2011) and wheat crops (Garcia Júnior et al, 2008). In regard to melon, no studies on the use of this fungicide to treat seeds were found.…”

Section: Introductionmentioning

confidence: 99%

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Germination, vigor, and fungi incidence in melon seeds treated with Thiabendazole

Cardoso¹,

Kronka²,

Lanna³

et al. 2015

Afr. J. Agric. Res.

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Chemical treatment is known to effectively eradicate or at least reduce the presence of fungi in seeds. However, this treatment should not impair seed quality. The purpose of the present study was to evaluate the physiological and sanitary quality of Cozumel hybrid melon seeds treated with the fungicide Thiabendazole. The experiments were conducted under a completely randomized design, consisting of 15 treatments in a 3×5 factorial system (three seed lots × five Thiabendazole doses: 0, 0.12, 0.2, 0.3 and 0.4% a.i.). The commercial product used was Tecto ® SC (485 g L -1 of Thiabendazole). Four replications of 50 seeds were used for germination and vigor tests (evaluated by germination test first count: GFC). Eight replications of 50 seeds were performed for seed pathology analysis, amounting to 400 seeds per treatment. The average results were compared by Tukey test at 5% probability. The results showed differences in germination between lots, with lower total germination in lot 84538 (90.8%). There was no difference in Thiabendazole dosage regarding both total germination (94.8% on average) and GFC (93.2% on average), showing that the fungicide did not affect the physiological quality of seeds. Pathogenic species were not detected in the sanitary analysis, only saprophytic fungal species (Alternaria sp., Aspergillus spp., Curvularia spp and Penicillium spp.) and a general reduction in fungi incidence was observed with the increase of Thiabendazole doses.

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Section: Resultssupporting

confidence: 78%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Germination, vigor, and fungi incidence in melon seeds treated with Thiabendazole

Cardoso¹,

Kronka²,

Lanna³

et al. 2015

Afr. J. Agric. Res.

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“…High levels of rainfall during the harvest period contribute to the infection of seeds [34]. Infected seed dispersal is characterized as the main source of inoculum, briefly rendering the cultivation unfeasible [20]. In our study, comparison was made only between herbicide treatments and TWA.…”

Section: Discussionmentioning

confidence: 99%

Application of Non-Selective Herbicides in the Pre-Harvest of Wheat Damages Seed Quality

Fipke¹,

Martin²,

Nunes³

et al. 2018

AJPS

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Pre-harvest desiccation in order to minimize the time of exposure to abiotic factors after physiological maturity is a practice used in the production of quality seeds. The aim of this work was to evaluate the physical, physiological and sanitary quality of wheat seeds from plants that received non-selective herbicide application at pre-harvest. For this, the treatments were applied on pre-harvest culture. A completely randomized design was applied. We use the herbicides (glufosinate-ammonium, glyphosate and paraquat), phenological stages of herbicide application (Z-83, Z-85, Z-87, Z-92) and additional treatment (without application). The routine tests that express the physical, physiological and sanitary integrity of seeds were evaluated. For herbicide treatments, there was an 8% and 26% reduction in germination under laboratory conditions for BRS Parrudo and Sinuelo, respectively. Soil emergence was 14% higher for the control treatment, not statistically different for the Z-87 and Z-92 stages and also for the herbicides glufosinate-ammonium and glyphosate for both cultivars. The application of non-selective herbicides on wheat pre-harvest impairs the physical and physiological quality and promotes faster deterioration. Vigor is reduced under stress conditions by cold test and accelerated aging. There is no influence on seed sanity.

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“…Assim também, os danos causados pelas espécies de Aspergillus e Penicillium são variáveis, como: diminuição de germinação, descoloração das sementes, aumento da taxa de ácidos graxos, aquecimento da massa de sementes e produção de toxinas (Choudhury, 1987;Lucca-Filho, 1995). Neste sentido, García-Junior et al (2008) relataram que a presença de F. graminearum em sementes de trigo, poderia resultar em uma maior percentagem de sementes mortas, reduzindo a percentagem de germinação de sementes no campo. É importante lembrar que diferentes valores de densidade de inóculo para patógenos transmitidos por sementes, geralmente, apresentam diferentes implicações epidemiológicas, pois altas densidades de inóculo em sementes constituem-se, certamente, em maiores riscos de ocorrência de danos no campo de cultivo (Machado, 2000).…”

Section: Tabelaunclassified

Germination and health quality of mucuna white and black seeds used as a green manure in Quevedo, Ecuador

2012

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Recibido 01 febrero 2012; aceptado 17 marzo 2012 Resumo O objetivo foi avaliar a qualidade sanitária e germinação de sementes de mucuna (Stizolobium spp.) branca e preta utilizadas como adubo verde em Quevedo, Equador. O experimento foi realizado no Laboratório de Microbiologia Ambiental e Vegetal da Universidade Técnica Estatal de Quevedo-UTEQ. As sementes de mucuna branca e preta foram provenientes do campo experimental La María na safra 2010. O trabalho foi composto de dois tratamentos para cada tipo de semente de mucuna (branca e preta), totalizando quatro. Em cada placa de Petri foram plaqueadas cinco (5) sementes, sendo dez (10) placas por cada tratamento, totalizando 50 em cada. Transferiu-se para uma câmara de crescimento (incubadora) com controle de temperatura de 25º C ±2 sem fotoperíodo. Foi avaliada a qualidade fisiológica (germinação aos seis dias e taxa (r) de crescimento da radícula) e sanitária (incidência de patógenos) das sementes. A germinação esteve entre 68 (meio de cultura BDA) e 40% (papel filtro) para mucuna branca, entre tanto, para mucuna preta, as mesmas ficaram entre 70 (meio de cultura BDA) e 34% (papel filtro). Os patógenos encontrados em sementes de mucuna branca e preta, foram os fungos Fusarium sp., Aspergillus sp., Penicillum sp., assim como uma bactéria não identificada, com médias de 10, 29, 30 e 33% de incidência, respectivamente.

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Efeito de fungicidas no controle de Fusarium graminearum, germinação, emergência e altura de plântulas em sementes de trigo

Cited by 10 publications

References 1 publication

Germination, vigor, and fungi incidence in melon seeds treated with Thiabendazole

Germination, vigor, and fungi incidence in melon seeds treated with Thiabendazole

Application of Non-Selective Herbicides in the Pre-Harvest of Wheat Damages Seed Quality

Germination and health quality of mucuna white and black seeds used as a green manure in Quevedo, Ecuador

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