The researchers studied how hormones in a type of Agave plant affect the growth of flower buds. They looked at the levels of different hormones like ABA, IAA, ZT, and GA3 during the flower bud development. They found that ABA and ZT levels were highest when the buds started forming, while GA3 peaked when the buds were almost fully developed. IAA decreased during the middle stage of bud growth. The timing of hormone changes matched the stages of bud development, showing a strong connection between hormones and bud growth. Low GA3 and IAA levels, along with high ABA, ZT, ABA/GA3, ABA/IAA, and ZT/GA3 ratios, were linked to better flower bud growth.