Metodologia alternativa para condução do teste de envelhecimento acelerado em sementes de milho

Bittencourt, Sonia Regina Mudrovitsch de; Grzybowski, Camila Ribeiro de Souza; Panobianco, Maristela; Vieira, Roberval Daiton

doi:10.1590/s0103-84782012000800005

Cited by 13 publications

(14 citation statements)

References 10 publications

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“…The similarity between the beans is desirable, since it proves the uniform conditions of the test execution (Marcos Filho 1999). Similar results were also found by Toledo et al (2009) in beans of Pearl cultivar, by Bertolin et al 2011who observed differences lowers than 4% between tested samples of beans and also by De Bittencourt et al (2012) between the maize lots studied.…”

Section: Resultssupporting

confidence: 90%

“…Therefore, quick evaluations allows greater promptness on the results, thus, the decisions regarding production, storage and marketing can be made more effi ciently (Fessel et al 2010, De Bittencourt et al 2012. Because the seed aging results from physiological potential decay, occurs germination ability decrease and an environmental stress sensibility increase.…”

Section: Introductionmentioning

confidence: 99%

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Physiological behavior of bean's seeds and grains during storage

Cassol

Fortes

Mendonça

et al. 2016

An. Acad. Bras. Ciênc.

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Beans are one of the most used foods to meet the energy needs of the Brazilian diet, requiring farmers to use high seed physiological potential. The aim was to evaluate the physiological quality of beans stored for 360 days. Analyses were performed at 0, 30, 90, 180, 270, and 360 days after receiving the seeds (S1 and S2) and grains (G1 and G2) of BRS Splendor. Tests of germination, accelerated aging, cold, speed of germination, average length of shoots, and root were performed. The experimental design was completely randomized split-plot in time and the means were compared through Tukey test at 5% probability. Seed germination was not affected in S2, while the drop in S1 and G1 was significant. The vigor of grains from field 1 declined from 91 to 50% and from 93% to 76% by accelerated aging and cold, respectively, after 360 days. The germination speed tests performed showed a decreased during the experiment. The grains from field 1 had lower physiological quality. The accelerated aging and cold tests, through the speed of germination parameter, showed decrease in the vigor of the Splendor BRS. The storage period influenced the physiological quality of the beans tested.

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Section: Resultssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Physiological behavior of bean's seeds and grains during storage

Cassol

Fortes

Mendonça

et al. 2016

An. Acad. Bras. Ciênc.

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“…According to BITTENCOURT et al (2012) the accelerated aging test associated with the tetrazolium test in seeds, provided similar information aas the one provided by the germination test.…”

Section: Results and Dicussionmentioning

confidence: 99%

Vigor tests to evaluate the physiological quality of corn seeds cv. 'Sertanejo'

2017

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Vigor tests to evaluate the physiological quality of corn seeds cv. 'Sertanejo'.Ciência Rural, v.47, n.3, 2017. INTRODUCTIONCorn (Zea mays L.) is an important crop in the world economy whose is characterized by many forms of use, from feeding to the high-tech industry (PICARELLI, 2012). In this context, Brazil has emerged as the third largest producer, behind only the US and China (EMBRAPA MILHO & SORGO, 2012). The use of corn as feed represents the largest share of consumption, about 70% worldwide, and in the United States it represents about 50%, while in Brazil ranges from 70 to 80% used for this purpose; despite low participation in food, generally derivatives from corn has great importance because meet the food demands, especially in regions with low income (PICARELLI, 2012).The use of high quality seeds is the basis for increasing yield, and the physiological component of seed quality has been subject of numerous studies, since the seeds are subjected to a series of degenerative changes after maturity (FREITAS & NASCIMENTO, 2006). Also the use of vigor testing is useful in monitoring the quality of seeds which from the maturity occurs reduction in vigor that precedes the loss of viability (DIAS & MARCOS FILHO, 1995). Vigor tests detect significant differences in physiological quality of seeds with similar germination, providing additional information to those obtained by the germination test, which are classified as direct methods, because they try to simulate the conditions that occur in the field, and indirectly aim to evaluate attributes that are indirectly

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“…Accelerated aging: conducted using plastic boxes containing 40 ml of water maintained in an incubator chamber set at a temperature of 45 °C (Bittencourt et al, 2012) for 96 hours. At the end of each period eight replicates of 50 seeds were set to germinate.…”

Section: Methodsmentioning

confidence: 99%

Physiological and Sanitary Qualities of Maize Landrace Seeds Stored Under Two Conditions

et al. 2015

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The preservation of seed quality during the storage period depends not only on the conditions during production and harvesting but also on the storage and maintenance of appropriate storage product conditions. Thus, the aim of this study was to evaluate the physiological and sanitary qualities of maize landrace seeds stored under two conditions. The maize seed batch varieties Oito carreiras, Cabo roxo and Lombo baio were used. Tests included germination, first count, cold test, accelerated aging and sanity. Based on the results it was concluded that the physiological quality of these seed varieties decreased with the storage period. The major fungi identified in the maize seeds during storage were from the genera Aspergillus, Fusarium and Penicillium, which caused deterioration and reduction of the physiological quality. Storage using a paper bag at a temperature of 10 °C did not prevent the deterioration of maize seeds but was more effective at preserving the quality of the seed compared with a plastic bag at room temperature.Index terms: Zea mays; storage; sanity; germination. RESUMOA preservação da qualidade das sementes, durante o período de armazenagem, não depende somente das condições de produção e de colheita, mas das condições de armazenamento e de manutenção adequada de estocagem do produto. Dessa forma, objetivou-se, neste trabalho, avaliar a qualidade fisiológica e sanitária de sementes de variedades crioulas de milho, quando armazenadas em duas condições. Foram utilizados lotes de sementes de milho pertencentes às variedades Oito carreiras, Cabo roxo e Lombo baio. Os testes realizados foram testes de germinação, primeira contagem de germinação, teste de frio, envelhecimento acelerado e sanidade. Por meio dos resultados, foi possível concluir que a qualidade fisiológica das sementes de variedades crioulas diminuiu com o período de armazenamento. Os principais fungos encontrados nas sementes de milho, durante o armazenamento, foram os dos gêneros Aspergillus, Fusarium e Penicillium, os quais provocaram deterioração e redução da qualidade fisiológica. O armazenamento em saco de papel, à temperatura de 10 °C não evitou a deterioração das sementes de milho, mas foi mais eficiente na preservação da qualidade da semente em relação à embalagem plástica, à temperatura ambiente.Termos para indexação: Zea mays; armazenamento; sanidade; germinação.

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Metodologia alternativa para condução do teste de envelhecimento acelerado em sementes de milho

Cited by 13 publications

References 10 publications

Physiological behavior of bean's seeds and grains during storage

Physiological behavior of bean's seeds and grains during storage

Vigor tests to evaluate the physiological quality of corn seeds cv. 'Sertanejo'

Physiological and Sanitary Qualities of Maize Landrace Seeds Stored Under Two Conditions

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