Effect of environmental factors on the composition of Canadian canola and flax. Long term trends and qualitative evaluations
2000
Daun, J.K. (Canadian Grain Commission, Winnipeg (Canada). Grain Research Laboratory) | De Clercq, D.R.
French. Carefully controlled agronomic studies have generated much experimental data that have allowed the development of theories regarding the effect of environment on oil seeds quality. The practical effects of these theories were tested by examining the results from quality surveys of flax and canola conducted over the past 60 years by the Grain Research Laboratory. Oil contents were inversely correlated with protein content, yield and total production. For canola and flaxseed, years with cool wet harvests usually resulted in high levels of oil content and correspondingly lower protein, although severe conditions led to decreases in both oil and protein. Years with cool growing conditions gave oils with higher iodine values (unsaturation) flax seed but it was difficult to relate weather patterns in canola to changes in saturated fatty acids due to the massive shift in species during recent years
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