_________________ is a plant hormone that controls stomatal closure and has some effect on the dormancy of many seeds.

Question

Quizplus · Accepted Answer

Abscisic acid is the plant hormone that controls stomatal closure, meaning it regulates the opening and closing of the pores on a plant's leaves that allow for gas exchange. This hormone also plays a role in seed dormancy, helping to keep seeds from germinating until the optimal conditions are present for growth. Cytokinin, auxin, and gibberellin all have different functions in plant growth and development but do not control stomatal closure or seed dormancy like abscisic acid does.

_________________ Is a Plant Hormone That Controls Stomatal Closure and Has