The study looked at 30 different types of high-quality rice plants to see how they varied in important traits. They found that grain yield per plant was strongly linked to harvest index, plant height, and other factors. This means that by selecting plants with certain traits, farmers can improve their crop yield. The researchers also discovered that traits like plant height and spikelets per panicle were highly heritable and had a big impact on grain yield. This information can help farmers choose the best rice plants to grow for a successful harvest.