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In hexaploid tritordeum, the storage proteins of advanced progenies from two crosses between three hexaploid tritordeum lines were analysed. The effects of allelic variation at the Glu‐B1, Glu‐Hch1 and Glu‐A3/Glu‐B3 loci on gluten strength, as measured by the sodium dodecyl sulphate sedimentation test, were determined using seeds from both crosses. Neither of the two alleles found at the Glu‐B1 locus in the crosses analysed had significant effects on gluten strength, but allelic variation at the Glu‐Hch1 and Glu‐A3/Glu‐B3 loci showed significant differences in effects on gluten strength.

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-Wheat cultivar IPR 118 developed by IAPAR has a good yield potential and is widely adapted. It is early maturing and moderately tolerant to shattering and soil aluminum, moderately resistant to leaf rust and presents high gluten strength for bread-making. The overall yield exceeded controls by 13%.

The wheat cultivar IPR 85, developed by IAPAR, has important traits including early maturity and vitreous, red colored kernels. It is moderately tolerant to aluminum in the soil, moderately resistant to sprouting and shattering. It also presented moderate resistance to powdery mildew and leaf rust. The quality parameters indicated overall high gluten strength, demonstrated by the alveographic W value of 371.10 -4 J, and Hagberg Falling Number of 455 s, which indicates high quality for bread making or blending purposes. The mean grain yield was 3870 kg/ha in the North and Center-West regions of Paraná State.

-The wheat cultivar IPR Catuara TM, obtained from a cross between the line LD 975 and the cultivar IPR 85, exhibitshigh gluten strength, which will allow the milling industry to supplement flours from wheats with weaker gluten strength, resulting in better quality products for the final consumer.