Abstract
It is shown that common spring wheat varieties and specimens of Kazakhstan and of the KASIP-4 regional network are mainly classified as medium-hard and hard, with the exception of vars. Lutescens 54, Lutescens 30–94, and E-607. A considerable part of the gene pool is represented by potentially high-quality varieties with the formula 2*7+9 5+10 (9 points), 30%; 1 7+9 5+10 (9 points), 4%; 1 7+8 5+10 (10 points), 7%. An original subunit 5.5+10 on chromosome 1D was found in varieties Akmola 3, Tselinogradka, and Tselinnaya 24.