What is the Plant Roots?

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Characteristics of Plant Roots 
·         The root constitutes the underground part of the plant axis.
·         It is an organ of the plant that typically lies below the surface of the soil
·         Externally the root has root hairs which aid in absorption of water minerals
·         Roots can be classified in three main categories:

·         Tap roots
§  One large vertical root
§  Also produces many small lateral or branch roots
§  These are common in dicotyledonous plants 

·         Fibrous roots
§  Mat of thin roots that spread out

§  Made up of many thread-like members of more or less equal length
§  These are common in monocotyledonous plants

·         Adventitious roots
§  Form on any plant part other than the roots
§  They commonly occur in grasses


·         Functions of the Roots
§  The following are the functions of the roots
§  Roots support (anchorage) the plant in the soil (or other media in which the plant is growing)
§  Absorption of water and other nutrients from the soil
§  Storage of food
§  Transport minerals and water to other parts of the plant



Photo Of Old Tree

References

Evans, W. C. (2009). Trease and Evans Pharmacognosy. India: Reed Elsevier Limited.


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