How Plants Control Flowering — Photoperiodism, Florigen, and Genetic Pathways Explained | Chapter 22 of Plant Physiology and Development
How Plants Control Flowering — Photoperiodism, Florigen, and Genetic Pathways Explained | Chapter 22 of Plant Physiology and Development The transition from vegetative growth to flowering is one of the most significant developmental shifts in a plant’s life cycle. Chapter 22 of Plant Physiology and Development (Sixth Edition) explores how plants integrate environmental cues, genetic pathways, and hormonal signals to determine the precise moment when flowering should begin. Understanding these mechanisms is essential for students of plant biology, agriculture, horticulture, and crop science. This article expands on the key ideas from the corresponding Last Minute Lecture video and provides a clear, in-depth explanation of the pathways that regulate flowering time. To follow along visually or reinforce your understanding, watch the full chapter summary here: Environmental Cues and the Timing of Flowering Many plants rely on photoperiodism —the measurement of day length—to det...