Question

what main wavelengths do plants pigments like best?

Answer 1

Plants use light in the 450 and 700 nm range. Meaning the plants like indigo-blue and orange-red light. Certain colors in light rays are important for proper plant growth. Leaves reflect and derive little energy from many of the yellow and green rays of the visible spectrum. Yet the red and blue parts of the light spectrum are the most important energy sources for plants, and plants require more rays from the red range than from the blue. Plants growing outdoors, in greenhouses or close to windows are exposed to a natural balance of the blue and red light rays that plants need. Where plants receive little or no natural light, you must provide additional light from artificial sources. Various plant pigments help use light. Carotenoids, chlorophyll a, b, and c. Chlorophyll a absorbs indigo and red lights, b absorbs blue and orange -red, c absorbs blue and orange in smaller amounts.