In a large saucepan, combine rhubarb, sugar, orange juice and salt. Bring to a boil. Reduce heat; simmer, covered, 6-8 minutes or until rhubarb is tender. Cool slightly., Process rhubarb mixture in a blender until smooth. Transfer to a bowl; refrigerate, covered, until cold., Just before serving, in a small bowl, whip cream until soft peaks form. In parfait glasses, alternately layer whipped cream, berries and rhubarb mixture.