Synopsis Differential temperatures (constant 50°, 60°, 70°, and 80° F.) were applied before and after initiation of floral primordia in two varieties of seed flax. Pre‐flower treatments caused significant differences in vegetative development but did not affect fatty acid composition of the seed oil of either variety. Post‐flower‐temperature affected fatty acid composition of the oil drastically. Linolenic acid decreased and oleic acid increased as post‐flowering temperatures increased from 50°to 80° F. Linoleic acid was not affected significantly.
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Yermanos et al. (1965) studied this question.