The study looked at how hormones in litchi flowers affect the development of pistils and stamens. They found that certain hormones like IAA and iPAs help pistils grow, while others like GA and ZRs can either help or hinder sexual organ development. ABA levels were higher in stamens or pistils that didn't develop properly. The balance of different hormones is important for normal development - when growth-promoting hormones are higher than inhibitory ones, stamens develop normally, and vice versa for pistils. Overall, the sex determination of litchi flowers is influenced by a combination of different hormones working together.