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A web-based model for estimating winter survival in cereals

Date

2003-02-18

Authors

Fowler, D.B.
Greer, K.

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Abstract

An interactive web-based model for estimating winter survival in cereals has been developed for use by farmers, extension workers, and researchers. The model is based on a series of equations that describe acclimation, dehardening, and damage due to low-temperature stress that are consistent with recent interpretation of low-temperature gene regulation. Low-temperature tolerance is estimated on a daily basis relative to stage of phenological development and cultivar cold hardiness potential. The model has been field validated for cereals in Saskatchewan and has been used in the simulation of over wintering for a wide range of species. Because it complies with the known low-temperature responses of cereals and is fully interactive, it can be used as a teaching tool that allows production risks, cause-and-effect processes, and genetic theories to be systematically investigated.

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Soils and Crops Workshop

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