Abstract:

In order to explore the change trend of ferulic acid (FA) and identify the suitable harvest period of wheat seedling, the contents of ferulic acid in wheat seedling from 7 cultivation variants were determined by HPLC method. Results indicated that the average contents of ferulic acid from 7 cultivation variants in the first through the fourth weeks were 0.2575, 0.2865, 0.3364 mg/g and 0.5193 mg/g, respectively. An increase trend of FA content was observed and an obvious increase of FA content in each variant was exhibited from the third to the fourth week. A significant increase was confirmed by variance analysis. No obvious significant level was observed in partial regression coefficients among plant height and FA content or net weight. In addition, the best harvest season for wheat seedling was not affected by plant height and dry weight. Therefore, the optimal harvest time of wheat seedling was the 4th week of growth based on ferulic acid as an efficient component index.

Key words: wheat seedling, ferulic acid, HPLC, content change