Results from the first preliminary test with short rotation willow clones

agronomic characters altura anatomia anatomie anatomy arbre arbre forestier arbre pour bois de construction bark biological control biological development biometria biometrie biometry bois bois rond breeding breeding aims chemicophysical properties clone clones composition contenido de humedad corteza crops cultivar cultivars cultivos desechos de la madera dicotiledoneas dicotyledons economic plants escandinavia europa europe evaluation fisiologia fonction physiologique forest products forest trees formas de descendencia forme de descendance hauteur height high-yielding varieties industrial crops lutte biologique madera madera en rollo measurement mesure methode methods moisture content objetivo de mejoramiento pest control methods physiological functions physiologie physiology plant anatomy plantas plantas industriales plante plante de culture plante industrielle plante pour construction plants productos productos forestales products produit produit forestier progeny forms pure lines resistance to injurious factors resistencia a la temperatura roundwood salicaceae salicales salix scandinavia scandinavie specific gravity stems structural crops supervivencia survie survival tallo temperature resistance teneur en eau tige timber trees trees variedades de rendimiento elevado vital statistics wood wood residues