Genotype, environment, and their interactions on the phytochemical compositions and radical scavenging properties of soft winter wheat bran

- Genotype (G), environment (E) & G × E effects impact health properties of wheat bran.
- E has stronger influence on health properties of wheat bran than G and G × E.
- Each health property responds to individual environmental factors differently.

The effects of genotype (G), growing environment (E), and their interactions (G × E) on the phytochemical compositions and radical scavenging properties of wheat bran were investigated using ten soft winter wheat (Triticum aestivum L.) varieties grown in four locations. In general, E had stronger influence on the selected health beneficial components and antioxidant properties of soft winter wheat brans than G or G × E (P < 0.001). E had a strong impact on α-tocopherol, δ-tocopherol, total tocopherols, total phenolic content (TPC), total soluble ferulic acid, and ABTS+ cation and DPPH radical scavenging capacities (P < 0.001). The results also showed that each soft wheat bran component or radical scavenging property may respond to individual environmental factors differently. For the first time, the present study showed that E, G, and G × E differed in their effects on the selected health components and antioxidant properties of soft red winter wheat bran.