Dessecação de canola em diferentes pontos de maturação das síliquas

Albrecht, Leandro Paiola; Krenchinski, Fábio Henrique; Placido, Henrique Fabrício; Bomm, Marco Aurélio Riedi; Kunz, Vilson Luís; Korber, Angelo Henrique Canan; Bieler, Renato Rodrigo

doi:10.7824/rbh.v12i2.188

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…Carfentrazone also presented high moisture levels. The data verified with the application of carfentrazone corroborate Marchiori Jr. et al (2002), who also observed that the utilization of this herbicide results in higher moisture of the seeds when compared to the other treatments and the control samples; the same was verified for paraquat used in canola (Albrecht et al, 2013).…”

Section: Resultssupporting

confidence: 74%

Yield and physiological quality of wheat seeds after desiccation with different herbicides

et al. 2017

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-Some desiccation techniques for harvesting wheat may affect seed quality. The objective of this study was to evaluate the effect of different desiccant herbicides applied to the wheat crop and their effects on the production and seed quality. The experiment was conducted with cultivar CooDeteC 150 (CD 150) in two sites in Palotina (Paraná state, Brazil) with a randomized block design consisting of 7 treatments (desiccation herbicides) and 4 replications. Desiccation was realized when 50% of the plants were in stage 80 with seeds in powdery or mass consistency. the variables analyzed were percentage of moisture content after harvest, Yield, hectoliter weight, mass of 100 seeds, vigor, germination, fresh mass of seedlings, dry mass of seedlings and root length. the herbicides carfentrazone-ethyl and clethodim were the ones that promoted greatest reduction in vigor. the herbicide paraquat caused reduction in seedling length. there was a reduction in the mass of 100 seeds for glufosinate-ammonium, clethodim, diquat and carfentrazone-ethyl. Glufosinate-ammonium, paraquat, glyphosate, clethodim and diquat caused reduction in yield. Desiccation of Cultivar CD 150 at stage 80 is not recommended, since plant Yield and physiological seed parameters were adversely affected by herbicides.Index terms: chemical desiccation, management, germination, vigor, seedlings.Produtividade e qualidade fisiológica das sementes de trigo após dessecação com diferentes herbicidas RESUMO -Algumas técnicas de manejo da cultura do trigo, como a dessecação pré-colheita podem afetar a produtividade e a qualidade fisiológica das sementes. O objetivo deste estudo foi avaliar o efeito de diferentes herbicidas dessecantes aplicados na cultura do trigo e seus efeitos sobre a produtividade e a qualidade das sementes. O experimento foi conduzido com a cultivar COODETEC 150 (CD 150), em dois ambientes de produção localizados no Município de Palotina -PR, sob o delineamento experimental de blocos casualisados, constituído de 7 tratamentos (herbicidas na dessecação) com 4 repetições. A dessecação foi realizada quando 50% das plantas apresentavam-se no estádio 80 com as sementes de consistência farinácea ou de massa. As variáveis analisadas foram umidade após a colheita, produtividade de sementes, peso hectolitro, massa de 100 sementes, germinação e vigor. Os herbicidas carfentrazoneethyl e clethodim reduziram o vigor das sementes produzidas, e o herbicida paraquat reduziu o comprimento de plântulas. ocorreu redução na massa de 100 sementes para o amônio -glufosinate, clethodim, diquat e carfentrazone-ethyl. O amônio -glufosinate, paraquat, glyphosate, clethodim e diquat reduziram a produtividade. A dessecação de plantas da cultivar CD 150 no estádio 80 não é recomendada, em decorrências dos efeitos negativos dos herbicidas nos parâmetros produtivos e fisiológicos das sementes de trigo.Termos para indexação: dessecação química, manejo, germinação, vigor, plântulas.

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Section: Resultssupporting

confidence: 74%

Yield and physiological quality of wheat seeds after desiccation with different herbicides

et al. 2017

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“…In a study by Pizolotto et al (2016) when evaluating different canola crop management systems, concluded that the application with the diquat herbicide reduced harvest losses by 31% to 66%, obtaining higher productivity and reducing costs with drying, which is in agreement with as reported by Esfahani et al (2012) and Albrecht et al (2013). The use of diquat, paraquat and paraquat + diuron did not influence the physiological potential (germination and vigor) in soybean seeds, but when applied glyphosate the damage occurred in the root system of the seedlings (Daltro et al 2010).…”

Section: IIIsupporting

confidence: 86%

The Time of Application of Maturing Herbicides Affects the Physiological Quality of Canola Seeds

Pilla¹,

Galon²,

Brandler³

et al. 2019

IJAERS

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Canola (Brassica napus L. var. oleifera) is a winter growing option for producers, however, harvesting is the phase that requires the most care and decision making to avoid losses in productivity. One of the alternatives that can be used to solve this problem is the application of maturing herbicides. Thus, the objective of this study was to evaluate the physiological quality of canola seeds with the use of herbicides, applied in two seasons, for pre-harvest maturation of the crop. The experimental design was a randomized block design, arranged in a factorial scheme 7x2 + 2 (herbicide x season + control) with four replications. Hybrid 50 canola plants received ammonium glufosinate, paraquat, glyphosate, diquat, saflufenacil, 2,4 -D and paraquat + diuron at two times in the crop cycle (G3 -when the first ten the main stem silica has a width greater than 4 cm, and G4 -when the first ten silicas of the main stem begin to mature), in addition to two unselected controls, for each season, the first being harvested on the day of application of the products, and the second kept in the field until the final cycle of the culture. First germination, germination, seedling length, dry mass, cold test and accelerated aging tests were performed. Herbicides applied in the first season (G3) cause the greatest damage to the seeds, and the plants that remained in the field until the end of the crop cycle and did not receive herbicide application (additional control), result in seeds with better physiological quality. The treatments with diquat, paraquat + diuron and glufosinate of ammonium presented higher efficiency with respect to seed quality, being the best period to carry out the maturation practice in the canola crop in the G4 season.

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Prediction of Canola Seed Longevity in the Drying Process

Fujii¹,

Jorge²,

Fracarolli³

2017

JAST-B

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Abstract:The probit analysis has been an important tool to predict seed longevity during storage and has been applied for seed drying simulation. Sealed aluminum pouches containing approximately 50 g of canola seed at moisture range of 7% to 21% of water content web basis (%) were conditioned in water-bath at 50, 60 and 70 °C to obtain the model to evaluate the reduction of canola seed germination. This model was included in the drying simulation program and the estimated germination was compared to the experimental values of germination during drying to validate the model. Canola seeds at 21% of moisture content and germination of 93% were dried at 51 °C and 61 °C, and the model represented significantly the drying experiments. The aim of this study was to propose a germination model to evaluate the quality of canola seeds during the drying process and to offer the seed producers an important tool to control the drying process. The experimental data validated the objectives of the proposed drying model, optimizing the process at given conditions, managing the energy consumption, according to the minimum germination or maximum moisture content limitation for seed storage. For 51 °C, the drying time for canola seed would be about 6 h to maintain germination above 90% and for 61 °C, 4 h of drying time maintained germination up to 89%.

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Dessecação de canola em diferentes pontos de maturação das síliquas

Cited by 4 publications

References 3 publications

Yield and physiological quality of wheat seeds after desiccation with different herbicides

Yield and physiological quality of wheat seeds after desiccation with different herbicides

The Time of Application of Maturing Herbicides Affects the Physiological Quality of Canola Seeds

Prediction of Canola Seed Longevity in the Drying Process

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