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Root system   [ Botany ]
(
or Root apparatus)

Dictionary of botanic terminology - index of names

     
  A root system is the  network off all the roots of a plant; the system of roots and related organs that a plant develops.  
     


Taproot system

The two basic types of root systems are the  primary root systems and the adventitious root system.

The primary root systems is formed of roots and their branches that arise from the primary root.
The primary root is the
first-formed, main root, That originates from the radicle of  a seed embryo (the portion of the embryo below the cotyledons).

Two primary root system types:


Fibrous root system

 

The adventitious root system is typical of most Monocotyledons in which the primary root is ephemeral and sort living and adventitious root soon arise from stem or leaf  tissue. (At the bottom of a grass  plant, for example, are a number of these adventitious roots growing out from the nodes above the seed near the ground level. ) These roots and their lateral branches make up a fibrous root system.

 


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