Temperature and time variables for accelerated ageing vigour testing of pea (Pisum sativum L.) seed

Authors: Hampton, J.G.; Brunton, B.J.; Pemberton, G.M.; Rowarth, J.S.

Source: Seed Science and Technology, Volume 32, Number 1, April 2004 , pp. 261-264(4)

Publisher: International Seed Testing Association

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Abstract:

The effects of combinations of time and temperature for the accelerated ageing (AA) test of pea (Pisum sativum L.) seed were investigated in two experiments using two garden and one field pea cultivars. An ageing temperature of 45°C was too severe irrespective of ageing time, as was ageing at 42°C for 72 or 96 h. Ageing at 42°C for 48 h provided separation among seed lots. However, these conditions did not provide any better separation than at 41°C for 72h. The latter regime is already internationally agreed for AA testing of soybean. Imbibed pea seed moisture after ageing at 41°C for 72 h was consistently between 49-51 g, and replicate germinations after AA were all within tolerance.

Document Type: Research article

Publication date: 2004-04-01

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