Influence of Yeast, Micronutrients, and Vitamins-B on Growth, Yield and Controlling Weeds of Flax (Linum usitatissimum L.)

The results of applying micronutrients, yeast, thiamine and riboflavin have shown great results in increasing growth and yield productivity of flax cv. Giza 5. Yet, the combined application of the two vitamins plus micronutrients has been much more effective. Applying riboflavin plus micronutrients precisely at the moderate concentration of riboflavin was the best method. Hand weeded was also good, causing significant increment in crop growth and yield productivity. Significant results increased the oil yield percentage of all crop treatments. On the opposite side of the activity, weeds growth was also affected and the most significant results were obtained by applying riboflavin plus micronutrients. The above results showed a significant decrease in the seed germination percentage and seedling root and shoot growth of the two seeds selected for the investigation, including Portulaca oleracea L. and Echinochloa crus-galli L. We may, therefore, recommend riboflavin plus micronutrients at 50+ 1.5 mg L⁻¹ as the best treatment that could be chosen for obtaining the best results over the two sides of action; combating weeds and increasing crop productivity.