The vitamin B₁ content of Dutch wheat and the factors which determine this content.

Abstract

Vitamin B1was estimated colorimetrically by the method of van der Mijll Dekker (Chem. Weekblad, 1947, 43, 532) in 10 Dutch winter and summer wheats grown for 3 years, 1946-48, on sea clay, sandy sea silt, river clay and sand. Summer wheats varied widely, Van Hoek was high and Koga low. Summer wheat grown on sea clay or sandy sea silt had more than the same varieties grown on river clay or sand. All varieties were richer in 1947 with a warmer, drier summer than in 1946 or 1948. High content tended to be associated with late seeding date. Among winter wheats, Alba had significantly more than Carstens V. Clay soils gave higher values than sandy soils. Weather conditions affected the vitamin B1content, but not as much as for summer wheat and not on silt soils. Seeding date had no influence.-V. R. Jackson. (Abstract retrieved from CAB Abstracts by CABI’s permission)