The researchers evaluated different types of rice hybrids to see which ones produced the highest yields and had the best traits. They used a method called line x tester analysis with four female rice lines, fifteen restorers, and their resulting sixty hybrids. The study took place at three locations during the kharif-2003 season. They found that some hybrids showed significant positive effects on grain yield per hill compared to standard checks like Jaya and Pro-agro-6201. Hybrids like IR-58025A x BR 827-35-3-1, IR-58025A x RTN-3, and IR-58025A x IR-46 performed particularly well. Overall, the study showed that certain rice hybrids can produce higher yields and better traits than others.