OBJECTIVE FORESTRY

Detailed explanation-1: -The central vascular structures of dicot roots are encircled by the ground tissue, which is primarily made up of parenchyma cells. The dicot root’s innermost cortical layer contains Casparian strips.

Detailed explanation-2: -Casparian strip-A band of suberin, an impermeable substance, found in the endodermal cell walls of plant roots; it was named after R. Caspary.

Detailed explanation-3: -…into roots is the so-called Casparian strip, a conspicuously thickened wall area one cell layer deep surrounding primary roots; it prevents excess soil solution from being pulled directly into the central part of the root where the xylem is located.