Interaction effects of the Rht1 and Rht2 dwarfing alleles and background genes on the growth and grain yield of spring wheat (Triticum aestivum L.)

摘要: Abstract The purpose of this study was to obtain information on the occurrence Rht × genetic background interaction effects growth and grain yield wheat alleles per se yield. F6, F7 F8 families from two crosses spring were tested in field experiments absence lodging. coleoptile length F9 seedlings grown at 18 °C examined. Each family had descended a single F5 plant, heterozygous Rht1 or Rht2 locus. Within each homozygous tall (rht) semi-dwarf (Rht) genotypes identified ; differences between represent variation. restricted maximum likelihood (REML) method used analysis variance, applying mixed model for gene, their interaction. A highly significant genotype effect culm found experiments. No could be detected. Highly variation most characters In case indicates possibility selecting long coleoptiles within genotype. association loci with promoting number grains spike counterbalanced by reduction mean weight grain. These results strongly support view that have no