Question

explain modification of roots in detail with diagrams?

Answer 1

Hey There! Roots are modified into different forms to perform specific functions other than their normal functions. Modification in roots is found in both tap root system and adventitious root system.  Modification in root occurs when there occurs a permanent change in the structure of the root system. This change in structure of the tap root or the adventitious root system is for carry out certain specific functions additional to anchorage and absorption. The change in the structure of the roots is for adaptation to their surrounding environment.

Answer 2

Modification of Roots...

Roots are modified on the basis of :-

1) Support. 

2) Respiration. 

3) Storage. 
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1) Support : The stems of maize and sugarcane have supporting roots coming out of the lower nodes of the stem. These roots are Known as still roots.
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2) Respiration : In some plants such as Rhizophora grow in swampy areas, many roots come out of the ground and grow vertically upwards. Such roots are called Pneumatophores help to get oxygen for oxygen.
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3) Storage : In some plants the primary tap roots are modified for storing reserve food material. The storage roots are swollen and assume various forms.

a) Conical : The swollen root is board at the base and tapers gradually towards the apex giving a shape of Conical. 
Ex :- Carrot.

b) Fusiform : The root is swollen at the middle and narrow towards both it's base and apex giving a shape of spindle. 
Ex :- Radish.

c) Napiform :  The root is nearly globular or spherical in shape. The basal portion of root is much swollen which suddenly tapers towards the apex giving a top shaped. 
Ex :- Turnip or beet.

d) Tuberous :  The storage food having no fixed shape.
Ex :- Mirabilis Jalapa.
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