Root system

 

Primary roots

These are also called as seminal roots, are basically elongation of the radicle. Over time, they deteriorate and finally die.

Secondary roots 

Secondary roots start appearing 6-7 days after seedling emergence and occupy 5 to 15 cm area in the soil around the base of the stem.Adventitious roots are small, uniform, and form a small portion of the root system.

Permanent adventitious roots

Another type of permanent adventitious roots develop from the second internode and above. These roots are branched laterally (about 1 sq.m) interlacing the soil vertically. These roots mainly supply nutrients to the plant. Pearl millet roots will grow up to more than 2 meters in pursuit of water and soil nutrients.

             Primary roots                               Secondary roots