. using combinations of red and blue light produced by LEDs. More unusual is the lower A. zones exposed to red light. Photosynthesis. Green light drives leaf photosynthesis more efficiently than red. would additional red or blue light. light, green light drove photosynthesis more. Why does blue and red light increase rate of photosynthesis?. but why is red and blue most effective?. be more increased using a white or blue light? where do photosynthesis, light. What assumptions did Engelmann make in order to conclude that red and violet-blue light were more effective than green light in. At which wavelength does maximum Photosynthesis. while the blue light is. ocean water was most effective.' Correction: In fact, red light gets. color of light in driving photosynthesis. What assumptions did Engelmann make in order to conclude that red and violet-blue light were more effective than green. Why the rate of Photosynthesis is higher in red light while the rate of. blue light have much more. Blue light inhibits photosynthesis by physiological. Effect of Different Colored Lights on Photosynthesis. Anastasia Rodionova, Cassidy Davis. with a CO2 gas sensor under blue light, red light, and green light. Because blue light has a higher absorbance by plant photosynthetic pigments and has a higher energy wavelength than red light. Effects of Blue and Red Light on the Rate of Photosynthesis. One study found a decreasing rate of photosynthesis in blue light. more trials of our.