RELATIONSHIP OF PLANT WATER CONTENT AND WINTERHARDINESS OF WINTER WHEAT AND FALL RYE GROWN IN ATLANTIC CANADA

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Abstract
The percent plant water was determined over a 6-yr period on plants of winter wheat (Triticum aestivum L.) and fall rye (Secale cereale L.) cultivars of a number of yield tests grown on Prince Edward Island. There were year-to-year variations in plant water content within cultivars. A negative correlation was obtained between percent plant water and winterhardiness. Generally, correlations of percent plant water with winterhardiness rating were better than with annual field survival. In some years percent plant water did not correlate with either field survival or winterhardiness rating. Plant water content was correlated with long-term winterhardiness rating during years when little or no winterkilling occurred.Key words: Winter wheat, fall rye, plant water