Siberian tiger / Amur tiger (Panthera tigris altaica) Siberian tiger / Amur tiger â interesting facts. The Siberian tiger is the largest living representative of felids, and one of the largest felids that have ever lived. It is usually taller than the Bengal tiger by 5-10 cm (2-4 in).
Three factors can limit the speed of photosynthesis - light intensity, carbon dioxide concentration and temperature. Without enough light, a plant cannot photosynthesise very quickly, even if there is plenty of water and carbon dioxide. Increasing the light intensity will boost the speed of photosynthesis.
If you plot the rate of photosynthesis against the levels of these three limiting factors, you get graphs like the ones above. In practice, any one of these factors could limit the rate of photosynthesis. Maximising growth. Farmers can use their knowledge of these limiting factors to increase crop growth in greenhouses. They may use artificial light so that photosynthesis can continue beyond daylight hours, or in a higher-than-normal light intensity.