AIIMS 2018 Botany Functions of Plant Hormones MCQ Question

Auxin plays a crucial role in parthenocarpy, which is the development of fruit without fertilization, particularly in tomatoes. This hormone promotes cell elongation and division, leading to fruit growth. In contrast, abscisic acid (ABA) primarily regulates stress responses and seed dormancy, gibberellins are involved in processes like bolting and stem elongation, and ethephon, a source of ethylene, is associated with fruit ripening. Understanding the specific functions of these plant hormones is essential for grasping their roles in plant development and fruit production.