Potencial fisiológico de sementes de mamona tratadas com micronutrientes

Oliveira, Rosa Honorato de; Souza, Myrne Jamilly de Lima; Morais, Otoniel Magalhães; Guimarães, Bruno Vinícius Castro; Júnior, Hercílio de Assis Pereira

doi:10.4025/actasciagron.v32i4.4829

Cited by 9 publications

(8 citation statements)

References 6 publications

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“…In terms of nutrient application, it was expected that the treatments would have satisfactory effects because the use of a paper towel as a substrate prevented losses of the product. The nutrients would be concentrated in the paper and more easily absorbed and translocated to the plant, thus preventing initial deficiency symptoms during the germination process (Oliveira, Souza, Morais, Guimarães, & Júnior, 2010).…”

Section: Resultsmentioning

confidence: 99%

Mineral supplementation of soybean seeds with different initial nutrient levels

et al. 2020

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The objectives of this study were to evaluate the effect of the chemical composition of soybean seeds and the efficiency of seed mineral supplementation on physiological quality and field performance. Two seed lots (high and low levels of mineral nutrition), with or without supplemental macro- and micronutrients, of three soybean cultivars (BMX Potência RR, BMX Turbo RR, and BMX Magna RR) were used. For the laboratory experiment, a completely randomized design with four replications was used. To evaluate the physiological quality of the seeds, the water content, first count, germination, 1,000-seed weight, and length and dry weight of the seedling were determined. For the field experiment, a randomized block design with four replications was used, and seedling emergence and grain yield were evaluated. Seeds with higher nutrient content produced seedlings of greater vigor and higher grain yield for all of the cultivars studied. The use of mineral supplementation in seed lots with low nutrient content resulted in greater vigor under laboratory conditions. The increase in grain yield after mineral supplementation depends on the quality of the seed lot.

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Section: Resultsmentioning

confidence: 99%

Mineral supplementation of soybean seeds with different initial nutrient levels

et al. 2020

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“…Entretanto, esses resultados diferem dos alcançados por Oliveira et al (2010) que apontam o Mo como um dos micronutrientes que mais contribuiu para aumentar a germinação e o vigor em sementes de mamona, após a embebição das sementes em solução contendo Mo, além de contribuir na redução da percentagem de sementes mortas. Pereira et al (2012), concluíram que a qualidade fisiológica de milho é influenciada negativamente por doses crescentes de molibdênio na mistura com o fungicida líquido de suspensão concentrada carboxina+thiram sobre as sementes.…”

Section: Cultivarunclassified

Translocação de molibdênio em plântulas de feijoeiro

Carvalho¹,

Xavier²,

Meneguzzo

et al. 2019

COLLOQ AGRARIAE

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Resumo O objetivo do trabalho foi avaliar o efeito da aplicação de molibdênio via tratamento de sementes sobre a qualidade fisiológica de sementes de feijão (Phaseolus vulgaris L.) e o teor do elemento no tecido vegetal em diferentes estádios de desenvolvimento da plântula. Os tratamentos foram constituídos pela aplicação de molibdênio via sementes, utilizando solução de molibdato de amônio (127g L-1), equivalentes a 0; 22; 44; 66 e 88g 100 kg-1. Foram utilizadas sementes de feijão, cultivares Expedito e Valente. O delineamento experimental foi inteiramente casualizado, com quatro repetições, avaliando-se separadamente cada uma das cultivares. A qualidade fisiológica das sementes foi avaliada pelos testes de germinação, primeira contagem da germinação, teste de frio, envelhecimento acelerado, emergência em campo, índice de velocidade de emergência, comprimento de plântulas e matéria seca de parte aérea e de raiz. Para a determinação do teor de molibdênio, realizou-se a semeadura em bandejas utilizando-se como substrato areia lavada. Aos 8, 10, 12 e 14 dias após a semeadura realizou-se a coleta das plântulas. Determinaram-se a massa secadas plântulas e em espectrofotômetro UV-Vísivel a 405 nmo teor de molibdênio da parte aérea. Os dados obtidos permitem afirmar que há possibilidade de aplicar molibdênio em feijão, via tratamento de sementes, em doses de até 88 g100kg-1 , sem causar prejuízos à qualidade fisiológica, tendo o teor de molibdênio nas plântulas aumentado linearmente com as respectivas doses aplicadas.

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“…One way of providing plants with nutrients is treating the seeds with macro or micronutrient based products. The principle behind this type of treatment is the translocation of the applied elements from the seeds to future plants (Oliveira et al, 2010), having the advantage of uniform distribution and the application of small doses. The absorption of Zn applied to seeds occurs almost integrally, increasing reserves of this element, since it is translocated from the seed to the plant during and after germination.…”

Section: Introductionmentioning

confidence: 99%

Efficiency of zinc sulfate (ZnSO4) absorption, transport and use in Zn-coated seed of wheat (Triticum aestivum).

Martins¹,

Suñé²,

Migliorini³

et al. 2018

Aust J Crop Sci

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This study was conducted in a laboratory with the aim of evaluating zinc absorption, transport, and use efficiencies in wheat from seeds coated with zinc sulfate. Two batches of wheat seeds (BRS 276) were used, one with high vigor and the other low vigor. The treatments consisted of using the commercial product in the form of zinc sulfate (ZnSO 4). The seeds were coated with levels of 0, 1, 2, 3, and 4 ZnSO 4 per kg of seeds. We also added 3 mL of fungicide (carboxin + thiram), 0.8 mL of polymer and enough water to make up 15 mL of syrup for 1 kg of seeds. The experimental design was entirely randomized with four repetitions. After the treatment, the following indices were calculated based on the plants dry material and nutrient content: Absorption Efficiency, Transport Efficiency, and Use Efficiency. The data showed a positive interaction between seed treatments and polymers, in which seed coatings had a good appearance, coloring, distribution, and product adherence to their surface. The results showed that applying the higher doses of the ZnSO 4 nutrient to seeds cause greater Zn absorption efficiency, lower Zn transport and use efficiencies.

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Potencial fisiológico de sementes de mamona tratadas com micronutrientes

Cited by 9 publications

References 6 publications

Mineral supplementation of soybean seeds with different initial nutrient levels

Mineral supplementation of soybean seeds with different initial nutrient levels

Translocação de molibdênio em plântulas de feijoeiro

Efficiency of zinc sulfate (ZnSO4) absorption, transport and use in Zn-coated seed of wheat (Triticum aestivum).

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