The Tired Head Of The Sunflower Stock Image

The sunflower is a one-year cultivated plant that is deep-rooted for up to 2 meters. It is very photosynthese-active; A large plant binds the carbon dioxide present in a space of 100 cubic meters per day. However, the plants are very light-dependent, i.e. the net photosynthesis rate is directly related to the logarithmus of light intensity, therefore even slightly less considered plants remain much smaller. It is a typical plant of warm locations, that is, it is a heat germination, it has its maximum growth at 20 degrees Celsius and its germ leaves come together at night.