On growth of sugi direct cuttings, hinoki natural regenerated seedlings and undergrowths in hinoki stands

agentes nocivos arbre arbre forestier arbre pour bois de construction artificial regeneration biological development bosques bouture chamaecyparis chemicophysical properties conifere coniferous forests conifers crecimiento croissance crops cryptomeria japonica cultivos cupressaceae cuttings developmental stages economic plants esquejes etapas de desarrollo etapas de desarrollo de la planta facteur nuisible fisiologia fonction physiologique forest trees forests gimnospermas growth gymnosperme gymnosperms injurious factors light luz malezas mauvaise herbe natural regeneration ornamental plants ornamental trees physical states physiological functions physiologie physiology plant developmental stages plantas plantas ornamentales plante plante de culture plante ornementale plante pour construction plants plantule propagation materials radiation regeneration seedlings silvicultura silviculture soil physicochemical properties structural crops sylviculture taxodiaceae timber trees trees vegetation weeds