Accelerated ageing test to evaluate vigour in Jatropha curcas L. seeds

Oliveira, Glauter Lima; Dias, Luíz Antônio dos Santos; Dias, Denise Cunha Fernandes dos Santos; Soares, Marcos Morais; Silva, Laércio Junio da

doi:10.1590/s1806-66902014000100015

Cited by 4 publications

(3 citation statements)

References 6 publications

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“…Accelerated aging (AA): the methodology described by Oliveira et al (2014b) was adopted. A single layer of seeds was arranged on a plastic wire screen attached to a plastic gerbox, containing, in the bottom, 40 mL of distilled water.…”

Section: Methodsmentioning

confidence: 99%

Physiological changes in Jatropha curcas L. seeds during storage

et al. 2016

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-Oil seeds, such as J. curcas, are more prone to deterioration and consequently to loss of quality during storage. In this context, adequate technics for its preservation are of great importance. This study aimed to evaluate the effects of different environments and packaging for the conservation of J. curcas seeds during twelve months of storage. The seeds were placed in three different types of packaging: a multiwall paper bag (or Kraft paper bag); a cloth bag; and a high-density plastic bag. After this, the seeds were stored in three different conditions: a laboratory (23 ± 3 ºC; 64 ± 11% of RH); a refrigerated room (20 ± 2 o C; 55 ± 5% of RH) and a cold chamber (10 ± 2 o C; 55 ± 5% of RH). Initially and thereafter every three months, the physiological qualities (germination and vigor) of the seeds were evaluated. J. curcas seeds packed in the plastic bags and stored in a cold chamber maintained their germination potential during twelve months. There was a decline in the physiological quality of the seeds stored in the laboratory conditions, independent of the packaging used. It was concluded that the most suitable condition for the storage of J. curcas seeds was packing them in plastic bags, placed in a cold chamber (10 ± 2 o C; 55 ± 5% of RH).Index terms: oil seed, physiological quality, conservation.Alterações fisiológicas em sementes de Jatropha curcas L.durante o armazenamento RESUMO -Sementes de oleaginosas, como as de J. curcas, são mais propensas à deterioração e consequente perda de qualidade durante o armazenamento. Nesse contexto, técnicas adequadas para a sua conservação tornam-se importantes. Nesse estudo, objetivou-se avaliar diferentes ambientes e embalagens na conservação de sementes de J. curcas ao longo de doze meses de armazenamento. As sementes foram acondicionadas em diferentes embalagens: saco de papel multifoliado; saco de pano e saco plástico de alta densidade. Em seguida, foram armazenadas em diferentes condições: laboratório (23 ± 3 ºC; 64 ± 11% de UR); sala refrigerada (20 ± 2 o C; 55 ± 5% de UR) e câmara fria (10 ± 2 o C; 55 ± 5% de UR). Inicialmente, e a cada três meses, foram realizadas avaliações da qualidade fisiológica (germinação e vigor) das sementes. Sementes de J. curcas acondicionadas em saco plástico e armazenadas em câmara fria mantiveram seu potencial germinativo por doze meses. Houve redução da qualidade fisiológica das sementes mantidas em ambiente de laboratório independente da embalagem utilizada. Verificou-se que a condição mais adequada para o armazenamento das sementes de J. curcas foi o acondicionamento em saco plástico em câmara fria (10 ± 2 o C; 55 ± 5% de UR).Termos para indexação: sementes oleaginosas, qualidade fisiológica, conservação.

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Section: Methodsmentioning

confidence: 99%

Physiological changes in Jatropha curcas L. seeds during storage

et al. 2016

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“…Nevertheless, in spite of this differentiation, for these periods of accelerated aging of 72 and 96 hours, the decline in germination was drastic, as also observed by Oliveira et al (2014) in physic nut and by Silva et al (2017) in rattlepod (Crotalaria).…”

Section: Resultsmentioning

confidence: 81%

Accelerated aging for evaluation of vigor in Brachiaria brizantha ‘Xaraés’ seeds

et al. 2020

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The aim of this study was to adjust the accelerated aging test to evaluate the physiological potential of seed lots of Brachiaria brizantha ‘Xaraés’, represented by four lots. Seeds were tested by traditional accelerated aging and with saturated NaCl solution in five aging periods: 0, 24, 48, 72 and 96 hours. The profile of the lots was determined by the following measures: moisture content, germination test, first germination count, germination speed index, initial stand, emergence, and emergence speed index. The accelerated aging test makes it possible to separate the lots by the method of saturated NaCl solution for 24 hours and it is appropriate for evaluation of seed physiological potential.

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“…However, Oliveira, Dias, Dias, Soares, and Silva (2014) evaluating the efficiency of the accelerated aging test, with variations, for the vigor check of jatropha seeds, verified that the accelerated aging test at 42 or 45 °C for 48 hours is efficient to classify lots of jatropha seeds at vigor levels.…”

Section: Resultsmentioning

confidence: 97%

Effect of Drying Temperature in the Physiological Quality of Jatropha curcas Seeds

Dardengo¹,

Vieira²,

Deminicis³

et al. 2018

JAS

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Stimulating the use of renewable energy instead of fossil fuels, especially biofuels, has become one of the alternatives to the issue of global warming. Of these species listed for the production of biodiesel is the Jatropha curcas crop. The aim of this study was to analyze the drying of the seeds of Jatropha, as well as to verify the effect of the different temperatures on the quality of the product, germination percentage and Emergence speed index (ESI). The experimental design was a completely randomized design, with four replications. Experimental drier was used to test the temperatures of 29, 35, 40, 45 and 50 °C and the data were compared by regression equation. The vigor and germination of the jatropha seeds were little affected as the drying temperatures were increased to 50 °C.

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Accelerated ageing test to evaluate vigour in Jatropha curcas L. seeds

Abstract: Accelerated ageing test to evaluate vigour in

Cited by 4 publications

References 6 publications

Physiological changes in Jatropha curcas L. seeds during storage

Physiological changes in Jatropha curcas L. seeds during storage

Accelerated aging for evaluation of vigor in Brachiaria brizantha ‘Xaraés’ seeds

Effect of Drying Temperature in the Physiological Quality of Jatropha curcas Seeds

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