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Finding the balance between frost tolerance and flowering time in wheat

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Australian grain breeders now have new lines of wheat and barley with different versions of the major heading-date genes (the genes that control the length of time it takes for the crop to produce grain)... The research produced a set of wheat and barley lines with different versions of the heading-date genes, VRN1 and PPD1 , introduced into the best wheat and barley lines available... The genes are important determinants of where and when cultivars can be grown...