Figure 2. Tricin and tricin derivative levels in embryo and pericarp tissue of developing grains of rice cultivars IAC600 (IAC) and Cocodrie (Coco) grown in the field (F) or in the greenhouse (GH).

(A–D) Tricin and tricin derivative levels expressed as ng per gram of tissue. (E–H) Tricin and tricin derivative levels expressed as pg per embryo or pg per pericarp sample. The data presented are the means and standard deviations of three biological replicates. Columns with different letters indicate a significant difference in compound levels (p < 0.05, one way ANOVA with Tukey’s Multiple Comparison Test). To better visualize the variation among the samples in amounts of specific compounds, the y-axes of the individual graphs are in different scales.