Quercus suber Network. Report of the third and fourth meetings, 9-12 June 1996, Sassari, Sardinia, Italy, 20-22 February 1997, Almoraima, Spain

almacenamiento de semillas arbre forestier arbre plus breeding methods collecte de semences coppicing corta de renuevos coupe de rajeunissement forest nurseries forest trees genetic resources genetic variation germination germplasm conservation pepiniere forestiere plus trees progeny testing pruebas de descendencia quercus suber seed collection seed storage stockage des semences viveros forestales