Abstract:This paper reports the effect of light quality on the plateau on the growth, photosynthesis and content of dry matter of spring wheat in the plateau. The result of the experiment indicates that:1. Blue light and blue purple light can make wheat stems short and strong, raise the total amount of chlorophyll, increase chlorophyll and delay the accumulation of dry matter of spring wheat and its growth.2. Red light and blue purple light have accelerating effects on the photosynthesis of three kinds of spring whe...