Available Water and Root Development Within the Micropores of Pine Bark Particles

~~::~n:~~o~e4~~ace'f root. development! and avail~ble water within pine bark particles were studied. Internal porosity constiV.� .. u ~ 0 a pme bark particle. Scannmg electron microscopy (SEM) revealed that roots of Coleus blumei and aCClnlum as?el were ~ttac.hed to the exterior surface of pine bark particles and had invaded the micropores Growth of ~aPthanusdsatlvlus seedhngs In wate~-s~turated bark pieces demonstrated that internally adsorbed water was utili~ed provided a root eve opment occurred wIthIn the bark particle.