Contribution of soybean seed treatment with Fluquinconazole to manage yield losses caused by Phakospora pachyrhizi using meta-analysis

Lucas, H.F.; Marcelo, German; André, L. da Silva; Fernando, Lenin; Laurence, V. Madden

doi:10.5897/ajar2016.11395

Afr. J. Agric. Res.

2016

DOI: 10.5897/ajar2016.11395

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Contribution of soybean seed treatment with Fluquinconazole to manage yield losses caused by Phakospora pachyrhizi using meta-analysis

H.F. Lucas¹,

German Marcelo²,

L. da Silva André³

et al.

Abstract: The reduction in efficiency of triazole and strobilurin fungicides sprayed on soybean crops has stimulated investigations into alternative ways of controlling Asian rust (Phakopsora pachyrhizi). . Therefore, this is another tool that can contribute to the integrated management of Asian rust.

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Cited by 2 publications

References 29 publications

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Impacto do controle do mofo-branco com fluazinam na produtividade da soja no Sul do Paraná: metanálise

et al. 2017

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O controle químico de Sclerotinia sclerotiorum pode prevenir infecção, e reduzir a incidência e severidade da doença. Analisar resultados de ensaios individuais nem sempre fornecem conclusões confiáveis. Com isso, técnicas estatísticas como a metanálise, pouco utilizada na fitopatologia, podem ser úteis. Basicamente a técnica sumariza quantitativamente resultados de diversos estudos os ponderando de acordo com sua variabilidade. ABSTRACTChemical control of Sclerotinia sclerotiorum can prevent infection and reduce the disease incidence and severity. Assessment of individual assay results may not provide reliable conclusions. Statistical techniques like metaanalysis, rarely adopted in phytopathology, may be useful. Basically, the technique quantitatively summarizes the results of several studies, weighting them according to their variability. Thus, published studies and technical reports provided by research entities were analyzed; they contained chemical treatment with the active ingredient fluazinam used in S. sclerotiorum control and its effect on soybean yield. Eighteen experiments were analyzed, totaling Tupich, F.L.B.; Fantin, L.H.; Silva, A.L.; Canteri, M.G. Impact of white mold control by fluazinam on soybean yield in the south of Paraná: Metaanalysis. Summa Phytopathologica, v.43, n.2, p.145-150, 2017. 50 data entries. The variable used for the random effects model was obtained based on the difference between the fungicide treatment and the control (without application). Meta-analytic estimate indicated an increase of 413.9 kg.ha -1 and range from 344.6 to 483.1 kg.ha -1 . Probability of any increase in yield was 89.1%, and for 120, 300, 600, 900 and 1,200 Kg.ha -1 chances were 82.8, 69.6, 41.7, 17.6 and 4.9%, respectively. Considering R$ 50.00 is the cost of a 60kg bag and R$ 170.00.ha -1 is the fungicide cost, the probability of financial return was estimated at 77.1%. Fluazinam application contributed to increase the yield of soybean attacked by S. sclerotiorum.

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Impacto do controle do mofo-branco com fluazinam na produtividade da soja no Sul do Paraná: metanálise

et al. 2017

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Meta-analytic model in the evaluation of yield increase with the use of fungicides to control Sclerotinia sclerotiorum

Calvo

Fantin

Canteri

et al. 2016

ASB J.

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Among the soybean diseases, the white mold caused by Sclerotinia sclerotiorum is considered one of the most important and can reduce the yield up to 60%. However, there are questions about efficiency of the chemical control of the disease applied on the shoot system. The meta-analysis allows statically significant conclusions for variables that, under the traditional experimentation, in individual tests, there were no level of significance. Thus the purpose of the work was to evaluate the connection between the use of chemical control of the white mold and the soybean yield. It was a systematic review of bibliographical studies through the CAPES website. The selection criteria were: National papers published between 2004 and 2012, containing the use of chemical control of white mold caused by Sclerotinia sclerotiorum. Data dispersion measurements and papers containing chemical control of the shoot system, active ingredient and dose. It was selected 42 papers of which 18 papers were selected following the criteria, totaling 126 entries. The statistical template was created with the Software R using the Metafor Package. On the results found, the meta-analysis measure presented a estimate grow of 396 kg.ha-1 with the use of fungicides as chemical control of the White mold. The inferior and superior confidence interval varied from 341.8 to 451.9 kg.ha-1, respectively. In conclusion, the chemical control of the white mold contributes positively to increase the soybean production.

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Contribution of soybean seed treatment with Fluquinconazole to manage yield losses caused by Phakospora pachyrhizi using meta-analysis

Cited by 2 publications

References 29 publications

Impacto do controle do mofo-branco com fluazinam na produtividade da soja no Sul do Paraná: metanálise

Impacto do controle do mofo-branco com fluazinam na produtividade da soja no Sul do Paraná: metanálise

Meta-analytic model in the evaluation of yield increase with the use of fungicides to control Sclerotinia sclerotiorum

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