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• W1974106560 abstract "ABSTRACT: Pre-harvest desiccation of soybean plants from non-genetically modified cultivars with glyphosate have shown to be detrimental to seed physiological quality by reducing germination and increasing production of abnormal seedlings. On the other hand, many products have been applied to seeds in order to enhance quality such as growth regulators and micronutrients. This study aimed to verify the phytotoxic effects of pre-harvest desiccation with glyphosate on physiological quality of soybean seeds and if they can be overcome or minimized by the application of micronutrients and biostimulant. Seeds from soybean cultivar Conquista were produced with and without desiccation with glyphosate, at the dose 2.0 L ha?1, applied at physiological maturity stage. Right after harvest, seeds were treated with Co + Mo + B + Zn, Co + Mo and biostimulant; a control, with no treatment, was also evaluated. Physiological quality was assessed by tests of germination and seedling development. Data was submitted to variance analysis. Means were compared by the Tukey test (p ≤ 0.05) and analyzed as a 2 × 3 factorial. Dunnet?s test (p ≤ 0.05) was also applied. Negative effects of pre-harvest desiccation with glyphosate on germination of soybean seeds can be overcome by the application of micronutrients Co+Mo. Applying biostimulant to soybean seeds improves seedling development compared with micronutrient treatments, although it does not minimize detrimental effects of desiccation with glyphosate. RESUMO: A dessecacao em pre-colheita de plantas de soja de cultivares tradicionais com glyphosate tem-se revelado prejudicial a qualidade fisiologica das sementes, em razao da reducao da germinacao e do aumento no numero de plântulas anormais. Por outro lado, muitos produtos, como reguladores vegetais e micronutrientes, tem sido aplicados as sementes com o objetivo de melhorar sua qualidade. Este estudo objetivou verificar se efeitos fitotoxicos da dessecacao em pre-colheita com glyphosate na qualidade fisiologica de sementes de soja podem ser superados ou minimizados pela aplicacao de micronutrientes e biostimulante. Sementes de soja da cultivar Conquista foram produzidas com e sem dessecacao das plantas com glyphosate, na dose de 2,0 L ha, aplicada na maturidade fisiologica. Logo apos a colheita, as sementes foram tratadas com os complexos Co + Mo + B + Zn, Co + Mo e um biostimulante; a testemunha, sem tratamento, tambem foi avaliada. A qualidade fisiologica foi avaliada por testes de germinacao e desenvolvimento de plântulas. Os dados foram submetidos a analise de variância. As medias foram comparadas pelo teste de Tukey (p ≤ 0,05) e analisadas em esquema fatorial 2 × 3. O teste de Dunnet (p ≤ 0,05) tambem foi aplicado. Os efeitos negativos da dessecacao em pre-colheita com glyphosate na germinacao das sementes de soja podem ser minimizados com a aplicacao de Co + Mo. A aplicacao de biostimulante as sementes de soja melhora o desenvolvimento das plântulas, quando comparada com o tratamento com micronutrientes, apesar de nao minimizar os efeitos deleterios da dessecacao com glyphosate." @default.
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• W1974106560 date "2013-01-01" @default.
• W1974106560 modified "2023-10-18" @default.
• W1974106560 title "Minimized phytotoxic effects of pre-harvest desiccation with glyphosate in soybean seeds" @default.
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• W1974106560 doi "https://doi.org/10.4322/rca.2013.046" @default.
• W1974106560 hasPublicationYear "2013" @default.
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