Produtividade de amendoim em função da calagem e do método de secagem

Fernandes, Elena Mercedes; Rosolem, Ciro Antônio

doi:10.1590/s0100-204x1999000100003

Cited by 2 publications

(1 citation statement)

References 25 publications

(31 reference statements)

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“…Therefore, some care with operations such as drying and storage, commonly conducted within a highly technology-oriented seed production system, became even more necessary and relevant, considering the establishment of the crop and, consequently, the fact that the desired production increments depend directly on the quality of the seed (Peske et al, 2012). As reported by Fernandes and Rosolem (1999) and by Krzyzanowski et al (2006), the drying method directly influences the quality of the peanut seeds and the productivity of the culture, considering that the promotion of vigorous plants and, consequently, the adequate development of the crop depend directly on this operation.…”

Section: Introductionmentioning

confidence: 96%

Physiological potential of peanut seeds submitted to drying and storage

et al. 2016

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-This study was performed to evaluate the immediate and latent effects of drying air temperature on the physiological potential of peanuts (Arachis hypogaea L.). The fruits were harvested at the physiological maturity stage, with 36 ± 2% water content (w.b.), and dried at temperatures of 40, 50, 60 and 70 ºC, until 7 ± 1% (w.b.). Thereafter, the fruits were stored in an environment with non-controlled temperature and relative humidity for 150 days, and the water content, germination and vigor of seeds were immediately determined, as well as at every 30 days thereafter, through the first count, and the tetrazolium test, accelerated aging test, cold test with soil and electrical conductivity. According to the results, it was found that the physiological potential of peanut seeds is inversely related to the drying temperature and the storage time, due to the fact that the germination and vigor are reduced as both factors increase. The air temperature of 40 °C may be recommended for the drying of peanut seeds, and even associated with the storage time of 150 days under uncontrolled conditions. Index terms: Arachis hypogaea L., germination of seeds, vigor, post-harvest. Potencial fisiológico de sementes de amendoim submetidasà secagem e ao armazenamento RESUMO -O presente trabalho foi conduzido com o objetivo de avaliar os efeitos, imediato e latente, de diferentes temperaturas do ar de secagem sobre o potencial fisiológico de sementes de amendoim (Arachis hypogaea L.). Os frutos foram colhidos no estádio de maturidade fisiológica, com aproximadamente 36 ± 2% de teor de água (b.u.), e submetidos à secagem nas temperaturas de 40, 50, 60 e 70 °C, até atingirem 7 ± 1% (b.u.). Posteriormente, esses foram armazenados em ambiente com temperatura e umidade relativa não controladas por 150 dias, sendo imediatamente e a cada 30 dias subsequentes determinado o teor de água, a germinação e o vigor das sementes por meio da primeira contagem e dos testes de tetrazólio, envelhecimento acelerado, frio com solo e condutividade elétrica. De acordo com os resultados obtidos, verificou-se que o potencial fisiológico das sementes de amendoim diminui com o aumento da temperatura de secagem e com o tempo de armazenamento, posto a germinação e o vigor das sementes serem diminutos conforme o incremento de ambos os fatores. A temperatura do ar de 40 °C pode ser recomendada para a secagem de sementes de amemdoim, sendo associada ao período de armazenamento de 150 dias em condições não controladas.Termos para indexação: Arachis hypogaea L., germinação de sementes, vigor, pós-colheita.

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Section: Introductionmentioning

confidence: 96%

Physiological potential of peanut seeds submitted to drying and storage

et al. 2016

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Analysis of Seed Quality and Drying Performance of a Multistage Countercurrent Sliding‐Bed Dryer

2011

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The effect exerted by the number of stages (one, two, three, and four stages) of a countercurrent sliding-bed dryer on the quality indices and drying performance of soybean seeds is evaluated by simulation. The two-phase model is used to describe heat and mass transfer between air and soybean seeds. The constitutive model equations are taken from specific studies. The seed quality is determined based on germination and nonfissured seed indices obtained by empirical functions reported in the literature. The simulated results show that dividing the air mass flux and air velocity can produce a lower seed outlet temperature which may yield higher quality indices and better drying performance in multistage configurations.

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Produtividade de amendoim em função da calagem e do método de secagem

Cited by 2 publications

References 25 publications

Physiological potential of peanut seeds submitted to drying and storage

Physiological potential of peanut seeds submitted to drying and storage

Analysis of Seed Quality and Drying Performance of a Multistage Countercurrent Sliding‐Bed Dryer

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