Original video: https://youtu.be/SrZIgGdIpHo Lecture on: 24 November 2025 Part 1: https://youtu.be/3mblOhwxerU Part 2: https://youtu.be/4LKaeyVyV2Q Notes can be downloaded here: This video segment of the Crop Physiology (AGR3301) lecture focuses on the crucial group of Growth Inhibitors—Abscisic Acid (ABA) and Ethylene—and their roles in stress signaling, development, and senescence. ABA is a general plant growth inhibitor and is considered the stress hormone due to its pivot