Light is one of the important and essential variables for the process of photosynthesis that leads to plant growth.
The development of plants due to light is known as photomorphogenesis that includes several aspects of light supporting plant growth. some of them are as follows:
<u>Photodormancy</u>: it is process in which light helps plants in the germination of seeds.
<u>Phototropism:</u> This is the phenomenon in which plant bent towards the light source
<u>photosynthesis:</u> in this process light functions in the syntheiss of food for plant.
<u>photoperiodism:</u> The flowering time is based on the length of the day and night is called photoperiodism.
So, this is how light plays an important role in plant growth.
Plants take up essential elements from the soil through their roots and from the air (mainly consisting of nitrogen and oxygen) through their leaves. Nutrient uptake in the soil is achieved by cation exchange, wherein root hairs pump hydrogen ions (H+) into the soil through proton pumps.
