The researchers studied how combining different chickpea plants can lead to better yields. They crossed four lines with six male parents to create 24 hybrids, which were then tested alongside a standard variety. The hybrid PDKV Kanchan x GJG-0814 showed the highest yield, with a 15.45% increase over the standard variety. Another hybrid, Phule Vikram x C-1821, also had a high yield, with a 10.65% increase over the standard variety. This shows that combining different chickpea plants can result in better yields, known as heterosis.