Changing local scale effect texture codes

when i change scale using a code it will effect the code i used to change a texture on a game object any tip?

     public Texture pictureTest;
             public GameObject theQuad;
         public Renderer rend;
 void Start ()
         {
             rend = theQuad.GetComponent <Renderer> ();
             rend.material.mainTexture = pictureTest;
             transform.localScale = new Vector3 (5, 5);
         }