2 research outputs found

    Evaluation of pea seed vigor by the accelerated aging and controlled deterioration tests

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    Vigor tests were developed to detect differences in seed lots due to limitations of germination tests. The objective of this work was to investigate the efficiency of the accelerated aging and controlled deterioration tests to assess the vigor of pea seed lots. The water content and physiological quality of five pea lots cv. Aragon were determined using the germination and vigor tests (first count, electrical conductivity, seedling emergence and speed of emergence index, accelerated aging with the traditional system and with saturated NaCl solution at 41ÂșC for 48, 72 and 96 hours; and controlled deterioration test with 15, 20, 25% water content for 48, 72 and 96 hours at 42ÂșC). The accelerated aging test with saturated NaCl solution for 96 hours was efficient to categorize pea seeds lots. Combinations of 20% water for 72 hours and 25% water for 48 and 72 hours were efficient to categorize pea seed lots using the controlled deterioration test

    Vigor of lentil seeds evaluated by the tests of accelerated aging and controlled deterioration / Vigor de sementes de lentilha avaliadas pelos testes de envelhecimento acelerado e deterioração controlada

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    The objective of this work was to investigate the efficiency of the accelerated aging and controlled deterioration tests in the evaluation of lentil seeds’ vigor. Water content was determined and the physiological quality was evaluated using germination and vigor tests (first count, seedling emergence, indices of germination speed and emergence, accelerated aging test with traditional method and with NaCl saturated solution at 41ÂșC and 45ÂșC for 24, 48, 72 hours and controlled deterioration with 20% and 24% water content for 24, 48 and 72 hours at 45ÂșC) in seven lots of lentil seeds cv Silvina. The use of traditional accelerated aging test and the NaCl saturated solution method at 41ÂșC for 48 hours were efficient to classify lentil seeds’ lots. The combination of 20% and 24% water for 48 hours exposure and of 20% water for 72 hours exposure were efficient to classify the lentil seed lots by the controlled deterioration test. 
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