title: Effects of alleles of Ppd-D1 and Vrn-B3 genes on heading time and yield-related traits in spring common wheat
abstract: The heading time in wheat is of great importance for adaptation to environmental conditions and grain yield.The spring common wheat varieties Tulun 15 and Obskaya 2 were selected for hybridization.Both varieties had the same alleles of the Vrn-1 genes, however, the Tulun 15 variety had dominant Ppd-D1a and Vrn-B3a alleles, while the Obskaya 2 variety had recessive Ppd-D1b and Vrn-B3b alleles.Using allele-specific primers F2 generation plants with different combinations of VRN and PPD1 alleles we