In fact, when seeds are exposed to red light, the active form of chromoprotein known as Pfr is formed, which triggers plant growth and seed germination. The Red treatment had 43 seeds in total and 17 germinated. The red and far red treatment had 46 total seeds and 27 total seeds germinated. The dark red treatment contained 53 seeds in total and 39 seeds germinated. The Far-Red and Red treatment included 45 total seeds and 30 sprouted seeds. The Dark treatment had the highest number of seeds with 55 but only 35 seeds germinated. Finally, the dark treatment had a total of 45 seeds and 41 germinating seeds, the highest of all treatments. Indeed, for the seeds to germinate, the plant must have sufficient light and water. Plants, such as lettuce seeds, that undergo phytochrome-medicated seed germination can grow better under red light because they absorb all available light for photosynthesis.