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Effect of light on plant growth

Plants through the energy of sunlight, the air， water, carbon dioxide and other substances into organic matter, and release the oxygen required by the human body, this process becomes photosynthesis, photosynthesis not only provides nutrients for plants, the release of oxygen also becomes the inexhaustible source of all life on the earth for prosperity and development.

Photosynthesis is a photochemical reaction process. The main factors affecting photosynthesis are light, temperature, water, mineral elements, etc., and the light intensity of plants also directly limits the photosynthetic rate. In fact, the effects of plant photosynthesis are often influenced by external environmental conditions and internal factors.

Experimental results show that seedling plants do not photosynthesize under long-term dark conditions, but only breathe and release carbon dioxide. As the light intensity increases, so does the photosynthetic rate. When the light intensity reaches a certain level, the photosynthetic rate of the leaf is equal to the respiration rate, that is, dynamic equilibrium is achieved. If the light intensity is too high, light suppression will occur, but the photosynthetic rate will decrease. Therefore, insufficient light and too much light can affect the photosynthesis of plants.