2006
DOI: 10.1590/s0100-67622006000100006
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Abstract: RESUMO -Este trabalho teve como objetivo avaliar o efeito da temperatura de armazenamento na porcentagem de germinação e no vigor das sementes de Caesalpinia peltophoroides Benth. (sibipiruna), por meio de testes fisiológicos. O teor de água aumentou nas sementes armazenadas a 5 °C e reduziu naquelas a 20 °C. A porcentagem de germinação das sementes mantidas a 5 e 20 °C apresentou redução aos 220 e 120 dias, respectivamente. O índice de velocidade de germinação decresceu de maneira similar. A condutividade elé… Show more

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Cited by 29 publications
(21 citation statements)
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“…The high moisture content of the seeds, together with high temperatures, accelerates the natural degeneration processes of the biological systems in such a way that under these conditions the seeds quickly lose their vigour, and shortly after that their capacity for germination (ALMEIDA et al, 1997). On the other hand, seeds with a low water content, and low temperatures in the storage environment, provide the best conditions for maintaining viability (PONTES et al, 2006). Conditions of high relative humidity can occasion the resumption of metabolic activity in the embryo, while high temperatures cause increased respiration and depletion of accumulated reserve substances (AGUIAR, 1995 apud BORBA FILHO;PEREZ, 2009).…”
Section: Introductionmentioning
confidence: 99%
“…The high moisture content of the seeds, together with high temperatures, accelerates the natural degeneration processes of the biological systems in such a way that under these conditions the seeds quickly lose their vigour, and shortly after that their capacity for germination (ALMEIDA et al, 1997). On the other hand, seeds with a low water content, and low temperatures in the storage environment, provide the best conditions for maintaining viability (PONTES et al, 2006). Conditions of high relative humidity can occasion the resumption of metabolic activity in the embryo, while high temperatures cause increased respiration and depletion of accumulated reserve substances (AGUIAR, 1995 apud BORBA FILHO;PEREZ, 2009).…”
Section: Introductionmentioning
confidence: 99%
“…O teste de envelhecimento acelerado foi realizado com seis tempos de exposição das sementes (0,24,48,72, 96 e 120 horas) e quatro repetições, totalizando 2.400 sementes analisadas. O estudo do armazenamento foi realizado num esquema fatorial 2 x 7, sendo um fator a condição de armazenamento (ambiente e geladeira) e o outro fator, o tempo de armazenamento (0,8,16,24,32,40 Embora o teste de envelhecimento acelerado provoque nas sementes alta taxa de respiração, consumo das reservas e aceleração dos processos metabólicos que levam à redução de qualidade (PONTES et al, 2006), deterioração e morte da semente (PIÑA-RODRIGUES et al, 2004), as condições de altas temperaturas e a umidade do teste também podem promover a superação da dormência.…”
Section: Methodsunclassified
“…Although the accelerated aging test provokes high rates of respiration, consumption of reserves and acceleration of metabolic processes that lead to seed quality reduction (PONTES et al, 2006), deterioration and death (PIÑA-RODRIGUES et al 2004), the conditions of high temperatures and the humidity of the test can also promote the overcoming of dormancy.…”
Section: Pre-germinative Treatments In Pomegranate Seeds (Punica Granmentioning
confidence: 99%