Multi-character nutraceutical selection aiming for the ideal wheat genotype

Abstract

Wheat consumption represents a large part of human diet. The quality of wheat grains and derived products depends on the genotype and its interaction with the environment. This work aimed to identify the effects of different wheat genotypes grown in different environments, performing nutraceutical multitrait selection, seeking the wheat ideotype based on wheat quality indicators. In total, 16 wheat genotypes were evaluated in five environments, using two sowing times. The contents of proteins, lipids, fibers, mineral material, and carbohydrates were evaluated. The residual or restricted maximum likelihood/best linear unbiased prediction (REML/BLUP) methodology was used to estimate variance components and genetic parameters. Moreover, the multi-trait genotype-ideotype distance index (MGIDI) was used to select the genotypes that demonstrated superiority. Except for the lipid content, high values of genotypic variance were identified. FPS Certero, ORS 1403, LG Prisma, and Tbio Iguaçú genotypes, conducted in São Gabriel and Cachoeira do Sul, met the sought ideotype during the first sowing time. FPS Certero, Tbio Tibagi, and LG Supra genotypes were superior when conducted in the Santo Augusto environment during the second sowing time.

Keywords

• Triticum aestivum
• ideotype
• different environments
• quality indicators