The study looked at how different traits related to grain yield in wheat are inherited across generations. They compared the heritability and genetic advance of these traits in F3 and F4 generations with those in F1 and F2 generations. The researchers used 6 different wheat cultivars from diverse backgrounds in their experiments. The findings show that certain traits related to grain yield and productivity are passed down from one generation to the next, with some traits showing more heritability and genetic advance than others. This information can help breeders develop wheat varieties with improved yield and productivity.