Count Ages Of Plant

       

              

In human ,they can  predict the age of pepole by seeing.

what in plant ?

How to count ages of this tree?? 

You cannot look at the tree and know how old of this tree. WHY?? 

because of most of tree have annaul ring especially in dicot tree.What is annual ring?? It is a ring that appear inside stem for 1 ring that contain 1 dark color ring and 1 wood color ring these called annual ring

                                               

                                                    This is example for annual ring