Page 43 - EVS Class 04
P. 43

Taproot
              This type of root grows vertically down in the ground

              and  gives  out  branches  on  all  the  sides.  Small  hair
              like roots grow from the sides of a taproot. Most tall
              trees  have  an  extremely  well-developed  taproot
              system.  Mustard,  carrot,  pea,  radish,  sunflower  and

              bean plants have a taproot.

                                                                                                    Taproot



                                          Fibrous Root

                                          Some plants do not have a main root. Such plants have
                                          many thin, fibre-like roots of similar size. These roots do
                                          not  go  very  deep  into  the  soil.  Fibrous  roots  branch

                                          sideways  holding  soil  particles  together.  Grass,  wheat
                                          and rice plants have fibrous roots.


                  Fibrous Root

              Types of Roots


              Aerial Roots

              Big  trees  like  banyan  have  numerous  roots  that
              grow  downwards  from  the  branches.  They  are
              called aerial roots. They center the soil and form
              secondary roots or prop roots. These roots give

              support  to  the  heavy  branches  of  the  banyan
              tree.
                                                                                             Aerial Roots




                                                            Water-Storing Roots

                                                            Water-storing roots store water making it

                                                            easier  for  plants  to  survive  long  in  dry
                                                            summer months. For example, gourd and
                                                            pumpkin.





                  Water-Storing Roots (Pumpkin)

             EVS-4
                                                                43
   38   39   40   41   42   43   44   45   46   47   48