The study looked at 102 different types of wheat to see how they vary in important traits related to yield. They found that certain traits like the number of tillers, weight of grains, and spike length were strongly linked to higher grain yield. This means that by selecting wheat plants with these specific traits, farmers can improve their crop's yield. The researchers also discovered that the number of tillers per plant had the biggest direct impact on grain yield, followed by biological yield per plant and weight of grains. This suggests that focusing on these traits in breeding programs can lead to better wheat crops in the future.