Different freezing factors associated with Saskatchewan winters in relation to the viability of Penicillium bilaiae
Date
2003-02-18
Authors
Sanders, E.M.
Knight, J.D.
Gusta, L.V.
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Abstract
Survival of Penicillium bilaiae over the winter months is essential for use on fall seeded
canola crops. Through a series of freeze experiments it is has been demonstrated that P.
bilaiae can successfully survive low temperatures down to -196 °C when there is a
controlled decrease in temperature. Penicillium bilaiae is still viable after being frozen at
-20 °C for 100 days. Cycles of freezes to -8 °C and thaws at 2 °C had no effect on
viability of P. bilaiae. Penicillium bilaiae on seed should be able to successfully survive
freezing conditions associated with a Saskatchewan winter.
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Keywords
temperature, canola
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Part Of
Soils and Crops Workshop