Tratamento fungicida de sementes de soja inoculadas com Colletotrichum truncatum

Pereira, Carlos Eduardo; Oliveira, João Almir; Rosa, Michele Cristina Marques; Oliveira, Gustavo Evangelista; Neto, Jaime Costa

doi:10.1590/s0103-84782009005000215

Cited by 20 publications

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“…This condition worsened when fertilizers were added, as the angular coefficients of the equations show (Table 3). Pereira et al (2009) observed that antifungal commercial products based on carbendazim, thiophanate-methyl, fludioxonil + mefenoxam, thiabendazole + thiram, and carboxin + thiram did not affect soybean seed germination and emergence when analyzed immediately after treatment. The same was indicated by , who did not observe adverse effects from the fungicides based on metalaxyl-m + fludioxonil, the same used in Technology IV, on soybean seeds over 180 days of storage.…”

Section: Resultsmentioning

confidence: 97%

“…There are numerous beneficial results from covering seeds with fungicides and insecticides for plant health protection in crops, both in reducing pathogen transmission and in defense against fungus and insect attacks during storage or in the initial stages of the crop (Bays et al, 2007;Pereira et al, 2009;Henning et al, 2010). A priori, industrial treatments of soybean available in the market do not adopt additional standardized covering of seeds with cobalt and molybdenum, nutrients that are indispensable for success in biological fixation of atmospheric nitrogen in symbiosis between soybean and bacteria of the genus Bradyrhizobium spp.…”

Section: Introductionmentioning

confidence: 99%

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Physiological potential of soybean seeds over storage after industrial treatment

et al. 2018

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The aim of this study was to evaluate the effect of industrial seed treatments on the physiological potential of soybean seeds over storage. Four mixtures of agrochemical products in association with two fertilizers were tested. The agrochemical product mixtures were carbendazim/thiram + imidacloprid/thiodicarb; pyraclostrobin, thiophanate-methyl, and fipronil; thiophanate-methyl/fluazinam + bifenthrin/imidacloprid; and metalaxyl-m/fludioxonil + thiamethoxam. The two fertilizers were 7% N, 16% P2O5, 0.6% Co, and 2.5% Mo; and 1% Co, 10% Mo, and 7% P2 O5. The experiment was carried out in a completely randomized design in a split-plot arrangement in time, with four replications. The treatments were allocated in the plots, while the storage periods (0, 30, 60, 90, and 120 days) constituted the split-plots. The following tests were carried out in each period: first count of germination, germination, accelerated aging, emergence speed index in sand substrate, and final seedling emergence in sand substrate. Seed germination and vigor declined over the storage period, especially after industrial treatment. Pesticide mixtures of a carbendazim/thiram fungicide base and an imidacloprid/thiodicarb insecticide base most impaired seed physiological potential throughout storage, regardless of fertilizer use in the industrial treatment.

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Section: Resultsmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Physiological potential of soybean seeds over storage after industrial treatment

et al. 2018

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“…A garantia de melhor desempenho de determinada cultura depende, fundamentalmente, da utilização de sementes vigorosas, isentas de doenças e cultivares resistentes (PEREIRA et al, 2009). A presença de fungos nas sementes colhidas foi analisada, especialmente em relação ao agente causal da antracnose.…”

Section: Resultsunclassified

Fungicide association in the control of anthracnose in the soybean in Mato Grosso do Sul

Pesqueira

Bacchi

Gavassoni

2016

Revista Ciência Agronômica

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RESUMO -A soja é um produto agrícola mundial, justificando investimentos para reduzir fatores adversos à sua produção como a antracnose causada por Colletotrichum truncatum. Três experimentos foram conduzidos com o objetivo de avaliar o controle da antracnose por fungicidas, isolados ou em associação, na parte aérea da soja em duas épocas de semeadura na safra 2011/12 nas condições de Dourados e Maracaju (MS . Duas aplicações de fungicidas foram realizadas, a primeira no momento da detecção da doença no estádio R2 de desenvolvimento e a segunda 19 dias após. Foi avaliada a incidência e severidade média, desfolha, altura de plantas, altura da inserção da primeira vagem, número de vagens, produtividade e massa de mil grãos. Foi realizada a patologia de sementes com enfoque na incidência de C. truncatum. O uso de carbendazim, isolado ou em mistura, controlou a antracnose da soja na parte aérea e em sementes. A aplicação de fungicidas proporcionou redução na desfolha, menor porcentagem de pecíolos doentes, maior número de vagens, maior altura de plantas e ganhos na produtividade. Carbendazim + ciproconazol + picoxistrobina apresentou esporadicamente maior controle do que carbendazim isolado. Palavras-chave:Colletotrichum truncatum. Glycine max. Doença. ABSTRACT -The soybean is a worldwide agricultural product, and therefore justifies investments in reducing those factors that are unfavourable to production, such as anthracnose caused by Colletotrichum truncatum. Three experiments were carried out with the aim of evaluating the control of anthracnose by fungicides, either singly or in combination, in soybean shoots sown on two dates in the 2011/12 season, under the conditions found at Dourados and Maracaju in the State of Mato Grosso do Sul. An experimental design of randomised blocks with five replications was used. The treatments were: control, carbendazim 250 g a.i. ha . Two fungicide applications were performed, the first when the disease was detected at development stage R2, and the second 19 days later. The following were evaluated: incidence and average severity, defoliation, plant height, first pod height, number of pods, productivity and thousand grain weight. Seed pathology was carried out focusing on the incidence of C. truncatum. The use of carbendazim, singly or combined, controlled anthracnose in the shoots and seeds of the soybean. The application of fungicides resulted in reduced defoliation, a lower percentage of diseased petioles, a greater number of pods, greater plant height and gains in productivity. Carbendazim + cyproconazole + picoxystrobin occasionally displayed greater control than did single carbendazim.

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“…In Wisconsin, the use of seed treatments for control of Phytophthora sojae Kaufmann & Gerdemann in soybean in a single year and location trial that had a history of P. sojae Race 3 found that mefenoxam + fludioxonil (ApronMaxx RTA, Syngenta Crop Protection, Greensboro, NC) did not significantly affect plant stand or yield across the different soybean cultivars examined (Dorrance et al, 2009). In Brazil, Pereira et al (2009) found that the use of the same compound was effective in reducing the level of anthracnose of soybean caused by Colletotrichum truncatum (Schwein.) Andrus & W.D.…”

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Probability of Yield Response and Breaking Even for Soybean Seed Treatments

Esker

Conley

2012

Crop Science

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Earlier soybean [Glycine max (L.) Merr.] planting coupled with increasing seed cost and commodity prices has led to an increase in the number of hectares treated with seed treatments. Ultimately, growers would like to know if applying such treatment is cost effective. Therefore, fhe objectives of this experiment were to quantify fhe effects of seed treatment on early season plant population and seed yield and investigate fhe probabilify that yield response covered fhe cost of fhe seed treatment. Trials were conducted in Wisconsin from 2008 fo 2010 af nine locations each year to compare no seed treatment, mefenoxam + fludioxonil (ApronMaxx), and mefenoxam + fludioxonil + fhiamefhoxam (CruiserMaxx). Results indicated differences in early-season plant population due fo cultivar and seed treatment and fhaf seed yield was affected by a cultivar x seed treatment interaction. At a low seed treatment price, fhe percentage of environments where the probabilify of breaking even was >50% and ranged from 56 fo 67%, while it ranged from 22 to 56% af a higher price. Both ApronMaxx and CruiserMaxx had posifive response rafios of 1.5 (p = 0.030) and 2.9% (p < 0.0001), respecfively, buf responses were culfivar dependenf. Given annual environmenfal variabilify, a general lack of field informafion regarding field hisfory of pathogens or insecfs, and the high furnover rafe of soybean culfivars, soybean seed freafments can be a cosf-effecfive component fo integrafe info soybean producfion sysfems.

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Tratamento fungicida de sementes de soja inoculadas com Colletotrichum truncatum

Cited by 20 publications

References 10 publications

Physiological potential of soybean seeds over storage after industrial treatment

Physiological potential of soybean seeds over storage after industrial treatment

Fungicide association in the control of anthracnose in the soybean in Mato Grosso do Sul

Probability of Yield Response and Breaking Even for Soybean Seed Treatments

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