1.

What is the significance of secondary growth?

Answer»

The significance of secondary growth are:

 (i) The secondary growth adds girth to the plant. It provides support by increasing width of the aerial growth. 

(ii) It produces a corky bark around the tree trunk that protects the interior parts from abrasion, heat cold and infection. 

(iii) It adds new conducting tissues for replacing old non-functioning ones as well as for meeting increased demand for long distance transport of sap and organic nutrients.



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