Influência dos períodos de dessecação da soja na germinação e componentes de rendimento

Araújo, Danila Lima de; Lazzari, Marcelo; Dutra, Romulo C.; Lajús, Cristiano Reschke; Klein, Cláudia; Cericato, Alceu; Sordi, André; Junges, Marina

doi:10.5039/agraria.v13i4a5584

Cited by 3 publications

(4 citation statements)

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“…In addition, glyphosate gave longer harvest time from spraying than diquat to desiccate the plants during the experimental years. Our results are in line with the findings of Pereira et al (2015) and Araújo et al (2018).…”

Section: Resultssupporting

confidence: 93%

“…It was determined that the critical growth stage for desiccant spraying was at R7 because the desiccant applications in earlier stages caused a drastic reduction in seed yield. The results are in line with the findings of Zagonel (2005), Pereira et al (2015), Finoto et al (2017) and Araújo et al (2018) who found that seed yield was promoted by delayed harvest time and adverse effects of desiccants on the soybean yield were identified. Rosado et al (2019) stated that significant reduction in seed yield of soybean with paraquat application on R8, while Guimarães et al (2012) determined that glyphosate had higher seed yield compared to ammonium glyphosinate and paraquat.…”

Section: Resultssupporting

confidence: 91%

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The effectiveness of herbicidal desiccants and application times on seed yield and earliness of soybean

Ergin

Kaya

2020

Not Bot Horti Agrobo

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Two herbicidal desiccants and five application times at different reproductive stages of soybean were investigated for earliness without significant reduction in seed yield and quality. Glyphosate and diquat were applied to soybean cv. ‘Arısoy’ (maturity group III) at growth stages of R5, R6, R7 and R8. Full maturity (FM) and uprooted plants at each growth stage were also used as a control. Plant height, first pod height, pod number per plant, seed weight per plant, thousand seed weight, seed yield and oil ratio were investigated. The results showed that plant height was not affected by desiccants and application times. Lower seed weight per plant, thousand seed weight, seed yield, and oil ratio were obtained from earlier reproductive stages, especially at R5, and R6, but glyphosate produced higher seed yield and oil content than diquat. Both desiccants considerably reduced seed yield when applied at R5 and R6. Mean seed yield enhanced from 1,364 to 3,036 kg ha-1 in first year and from 1,097 to 2,804 kg ha-1 in second year as the growth stages extended from R5 to R8. Diquat was more effective desiccant for accelerating soybean harvest than glyphosate, while higher seed yield was obtained from glyphosate spraying at R5 and R6 stages. Increased seed yield was observed in diquat application when the soybean growth stages were delayed from R5 to R8. It was concluded that glyphosate should be applied at R7 in soybean for earliness with 7-10 days in harvest and no desiccant should be suggested before R7 stages.

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Section: Resultssupporting

confidence: 93%

Section: Resultssupporting

confidence: 91%

The effectiveness of herbicidal desiccants and application times on seed yield and earliness of soybean

Ergin

Kaya

2020

Not Bot Horti Agrobo

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“…A aplicação de glufosinate na dessecação pré-colheita também é destacada por outros estudos, embora possa apresentar alguns riscos a qualidade de sementes produzidas, sobretudo em estádios da soja anteriores a R7 (ZUFFO et al, 2019;PEREIRA et al, 2015b). Neste sentido, Araújo et al (2018) observaram para aplicações de glufosinate, em R6 e R6.5 houve redução em produtividade ou efeitos negativos na qualidade de sementes (vigor e germinação) da soja, sem efeitos deletérios para aplicações em R7.2. Albrecht et al (2022) indicam a aplicação de glufosinate a partir de R7.2 para se evitar efeitos deletérios na produção de sementes.…”

Section: Discussionunclassified

“…Zagonel (2005) observou eficácia equivalente na dessecação da soja para aplicação de paraquat, diquat e glufosinate. Araújo et al (2018) observaram antecipação na colheita da soja, sem efeito negativo sobre a produtividade, para aplicação de glufosinate (400 g de ingrediente ativo [i.a.] ha -1 ).…”

Section: Introductionunclassified

Formulações De Glufosinate Na Dessecação Pré-Colheita Da Soja

Albrecht

Yokoyama

et al. 2023

NAT

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Haja vista a eficácia do glufosinate na dessecação pré-colheita da soja, mas com poucas informações comparativas entre as formulações deste herbicida, objetivou-se com este estudo avaliar produtos comerciais à base de glufosinate na dessecação pré-colheita da soja. O experimento foi conduzido no campo em Palotina, estado do Paraná (PR), Brasil, safra 2020-2021. Foi utilizado delineamento em blocos casualizados, com quatro repetições. Os tratamentos foram compostos pela aplicação, na dessecação pré-colheita da soja, das formulações de glufosinate (400 g i.a. ha-1): Finale®, Gamonium®, Off Road®, Patrol® SL, Fascinate® BR, Trunfo®, além da testemunha sem aplicação. Foi avaliado o percentual de desfolha e maturação (focada na avaliação das vagens) da soja aos 3, 5 e 7 dias após a aplicação, umidade de grãos e produtividade. Não foram observadas diferenças entre as formulações de glufosinate na desfolha e maturação das vagens das plantas de soja, na aplicação em dessecação pré-colheita. Além disso, nenhuma das formulações de glufosinate diferiu da testemunha sem aplicação em produtividade, e todas reduziram a umidade dos grãos sem diferenças entre elas. Isso, indica a viabilidade da aplicação de glufosinate em R7.2, como manejo em dessecação pré-colheita da soja. Palavras-chave: desfolha; maturação; produtividade; herbicida; dessecante. Glufosinate formulations in soybean pre-harvest desiccation ABSTRACT: Considering the effectiveness of glufosinate in the pre-harvest desiccation of soybeans, but with little comparative information between the formulations of this herbicide, the objective of this study was to evaluate commercial products based on glufosinate in the pre-harvest desiccation of soybeans. The experiment was carried out at field in Palotina, Paraná state (PR), Brazil, 2020-2021 crop season. A randomized block design with four replications was used. The treatments were composed by the application, in the pre-harvest soybean desiccation, of the glufosinate formulations (400 g ai ha-1): Finale®, Gamonium®, Off Road®, Patrol® SL, Fascinate® BR, Trunfo®, in addition to of the control without application. The percentage of defoliation and maturation (focused on the evaluation of pods) of soybean at 3, 5 and 7 days after application, grain moisture and yield were evaluated. No differences were observed between the glufosinate formulations in the defoliation and maturation of the pods of soybean plants, in the application in pre-harvest desiccation. Furthermore, none of the glufosinate formulations differed from the control without application in yield, and all reduced grain moisture without differences between them. This indicates the feasibility of applying glufosinate in R7.2, as a pre-harvest desiccation management of soybeans. Keywords: defoliation; maturation; yield; herbicide; desiccant.

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Pre-harvest desiccation strategies of soybean culture: a scenario without paraquat

Silva

Bezera

Medeiros

et al. 2022

Journal of Environmental Science and Health, Part B

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Influência dos períodos de dessecação da soja na germinação e componentes de rendimento

Cited by 3 publications

References 0 publications

The effectiveness of herbicidal desiccants and application times on seed yield and earliness of soybean

The effectiveness of herbicidal desiccants and application times on seed yield and earliness of soybean

Formulações De Glufosinate Na Dessecação Pré-Colheita Da Soja

Pre-harvest desiccation strategies of soybean culture: a scenario without paraquat

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