Desempenho fisiológico de sementes de aveia-preta tratadas com tiametoxam

Almeida, Andréia da Silva; Villela, Francisco Amaral; Meneghello, Géri Eduardo; Lauxen, Luciana Regina; Deuner, Cristiane

doi:10.5433/1679-0359.2012v33n5p1619

Cited by 16 publications

(23 citation statements)

References 4 publications

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“…Horii and Shetty (2007) reported that some insecticides might exhibit determined physiological effects beyond the protective effect, assisting in the initial growth and development of the plants. An increase in the physiological potential was seen by Almeida et al (2011) in rice seeds and by Almeida et al (2012) in oat seeds treated with thiamethoxam. Wendling and Nunes (2009) observed that the hybrid corn seeds Prezotto PRE 22T10 treated with imidacloprid + thiodicarb and stored for up to 30 days showed germination equivalent to the control, and when stored for 40 days, showed significantly lower values, and, consequently, they recommend that the treatment be performed as near as possible to the sowing day.…”

Section: Resultsmentioning

confidence: 92%

Physiological performance during storage of corn seed treated with insecticides and fungicide

Deuner¹,

Rosa

Meneghello³

et al. 2014

J. Seed Sci.

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-The goal of storage is to maintain the characteristics that seeds have immediately after processing; however, when this is over longer periods, storage may cause loss in quality. The aim of this study was to evaluate the effect of treatment with insecticide and fungicide on corn seeds harvested in kernel form and in the ear over the time of storage in two environments for 360 days. The seeds were subjected to the following treatments: T1 -control; T2 -Deltamethrin + Pirimiphosmethyl + Fludioxonil; T3 -Deltamethrin + Pirimiphos-methyl + Fludioxonil + Thiamethoxam; T4 -Thiamethoxam, and T5 -Fenitrothion. They were then placed in paper bags and stored in two environments, in a cold room with an average temperature of 16 °C and RH of 60% and in a non-controlled environment (an average room temperature of 25 ºC and RH of 70%) located in the municipality of Pelotas, RS, Brazil. Every four months (0, 120, 240 and 360 days), seed germination and vigor was evaluated by the first count of germination test and cold test. Reduction in germination and vigor of corn seeds, conditioned by the insecticides and fungicide used in the seed treatment, vary according to the product and the time over which the seeds remain stored. The seeds harvested in the ear show lower loss of physiological quality than those harvested in kernel form.Index terms: Zea mays L., germination, vigor, seed treatment.Desempenho fisiológico durante o armazenamento de sementes de milho tratadas com inseticidas e fungicida RESUMO -O armazenamento tem por objetivo manter as características que as sementes possuem imediatamente após o beneficiamento, porém, quando por períodos mais extensos, o mesmo pode causar perdas na qualidade das mesmas. O objetivo neste trabalho foi avaliar o efeito do tratamento com inseticida e fungicida sobre sementes de milho colhidas a granel e em espiga durante o armazenamento em dois ambientes por 360 dias. As sementes foram submetidas aos tratamentos: T1-testemunha; T2-Deltamethrin + Pirimifós-metílico + Fludioxonil; T3-Deltamethrin +Pirimifós-metílico + Fludioxonil + Tiametoxam; T4-Tiametoxam e T5-Fenitrothion. Em seguida, foram acondicionadas em sacos de papel e armazenadas em dois ambientes: câmara fria com temperatura média de 16 °C e UR de 60% e em ambiente não controlado (câmara com temperatura média de 25 ºC e UR de 70%, localizada no município de Pelotas-RS). A cada quatro meses (0; 120; 240 e 360 dias) foi avaliada a germinação e o vigor das sementes, pelos testes de primeira contagem de germinação e teste de frio. A redução da germinação e do vigor de sementes de milho, condicionada pelos inseticidas e fungicida utilizados no tratamento das sementes, varia em função do produto e do tempo em que as sementes permanecem armazenadas. As sementes colhidas em espiga apresentam menor perda da qualidade fisiológica em relação às colhidas a granel.Termos para indexação: Zea mays L., germinação, vigor, tratamento de sementes.1

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Section: Resultsmentioning

confidence: 92%

Physiological performance during storage of corn seed treated with insecticides and fungicide

Deuner¹,

Rosa

Meneghello³

et al. 2014

J. Seed Sci.

Self Cite

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“…When the dry powder was not applied, the seeds treated with thiamethoxam (T4) showed seedlings with less shoot growth, in relation to the other treatments (Table 1). Almeida et al (2012) and Santos et al (2014), in their respective studies on black oat seeds sowed in paper substrate, and soybean seeds planted in sand, verified that the treatment with thiamethoxam presented a phytotonic effect, which is characterized by a greater growth and development of the seedlings. According to Castro et al (2008), the insecticide thiamethoxam acts on the expression of genes responsible for the synthesis and activation of enzymes related to plant growth.…”

Section: Resultsmentioning

confidence: 99%

Physiological potential of soybean seeds treated in the industry with and without the application of dry powder

et al. 2018

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-In soybean crops, industrial seed treatment is widely adopted, and it has allowed the development of new technologies, such as the use of dry powders. This work aimed to evaluate the effect of the industrial treatment, with and without the additional application of dry powder, on the physiological potential of soybean seeds. The experimental design was completely randomized, in a 4×2 factorial scheme, with four replications. Four chemical treatments were evaluated: 1) control, 2) carbendazim + thiram + thiamethoxam, 3) carbendazim + thiram, 4) thiamethoxam. Each trial was divided into one group that was treated and the other that remained untreated with the dry powder. The cultivars BRS 360 RR and BRS 284 were used and analyzed separately. The physiological potential of the seeds was determined by the following assessments: germination, first germination count, seedling emergence in sand, seedling total length, shoot length, and root length. Soybean cultivars respond differently to seed chemical treatments, regarding the effects on physiological potential. Using the dry powder results in problems in seed germination speed in the cultivar BRS 284. In the cultivar BRS 360 RR, the use of dry powder associated with thiamethoxam treatment reduces the physiological potential of the seeds.Index terms: Glycine max (L.) Merrill., fungicides, insecticides, germination, emergence of seedlings.Potencial fisiológico de sementes de soja tratadas industrialmente com e sem a aplicação de pó secante RESUMO -Na cultura da soja, o tratamento industrial de sementes é amplamente realizado e tem propiciado o desenvolvimento de novas tecnologias, como a utilização de pó secante. O objetivo deste trabalho foi avaliar o efeito do tratamento industrial de sementes, com e sem a aplicação de pó secante, sobre o potencial fisiológico de sementes de soja. O delineamento experimental foi inteiramente casualizado, em esquema fatorial 4x2, com quatro repetições, sendo avaliados quatro tratamentos químicos de sementes: 1) testemunha, 2) carbendazim + thiram + tiametoxam, 3) carbendazim + thiram, 4) tiametoxam; todos na ausência e na presença de pó secante. As cultivares utilizadas foram a BRS 360 RR e a BRS 284, que foram analisadas separadamente. O potencial fisiológico das sementes foi determinado por meio das seguintes avaliações: germinação, primeira contagem de germinação, emergência de plântulas em areia, e comprimentos total, da parte aérea e da raiz das plântulas. As cultivares de soja respondem de forma diferenciada aos tratamentos químicos de sementes, quanto aos efeitos no potencial fisiológico. O pó secante resulta em problemas na velocidade de germinação das sementes da cultivar BRS 284. Na cultivar BRS 360 RR, o uso de pó secante associado ao tratamento com tiametoxam reduz o potencial fisiológico das sementes.Termos para indexação: Glycine max (L.) Merrill., fungicidas, inseticidas, germinação, emergência de plântulas.

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“…This can significantly improve the seedlings performance under adverse conditions, such as water deficit, soil acidity and salinity, phytotoxic effects of elevated levels of aluminum and temperature, in addition to determining the increase of protein levels and plant enzyme (Almeida et al, 2011;Almeida et al, 2012).…”

Section: Resultsmentioning

confidence: 99%

Physiological quality of bean genotypes seeds peanut and xamego treated with fungicides and insecticides

Maciel¹,

Lima²,

Fern³

et al. 2018

Afr. J. Agric. Res.

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Bean is one of the most important crops because it is a staple food. In order to control diseases and pests, the use of fungicides and insecticides in the seed treatment are efficient methods. In this sense, the aim of this study was to evaluate the effect of fungicides and insecticides on physiological quality of bean seeds. The experiment was conducted in a laboratory and greenhouse, and seeds of two genotypes of common bean (Peanut and Xamego) were used. The seeds were treated with the following fungicides: Captan, Fluazinam, Metioram and insecticides: Acefate, Imidacloprid and Thiametoxan. The experiment was arranged in a completely randomized design, with replications and seven treatments. Not treated seeds were utilized as control. The bean seeds treatment of the genotype Peanut and Xamego using insecticide and fungicide did not affect the physiological quality of the seeds. Xamego genotypes shows greater vigor in the laboratory, while the Peanut genotype in the greenhouse, and the treatments do not interfere in the initial growth of the plants.

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Desempenho fisiológico de sementes de aveia-preta tratadas com tiametoxam

Cited by 16 publications

References 4 publications

Physiological performance during storage of corn seed treated with insecticides and fungicide

Physiological performance during storage of corn seed treated with insecticides and fungicide

Physiological potential of soybean seeds treated in the industry with and without the application of dry powder

Physiological quality of bean genotypes seeds peanut and xamego treated with fungicides and insecticides

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