The characteristic of two elm resistant to DED recently released are described. 'San Zanobi' is monocormic and shows exceptionally rapid growth on fertile soils and in temperate climates, suggesting that it could be used for timber production. Its habit is cone-shaped with pronounced apical dominance, resulting in limited lateral branching.'Plinio' grows rapidly, although slightly slower than 'San Zanobi'. It adapts readily to Mediterranean mountainous climates of Northern Italy. 'Plinio' is used as an ornamental shade tree. Resistance to DED was assessed by two tests performed by artificially inoculation of the F1 progeny and then on rooted cuttings of the seedlings resulted more resistant in the previous assay. The symptoms, were compared with clones having known DED responses ('Lobel', moderately resistant; 'Urban' resistant; and CNR 118 highly susceptible). The resistance levels of the clones described here were significantly higher than the resistance levels of 'Lobel' and 'Urban'.
'San Zanobi' and 'Plinio' elm trees.
Santini A;Ferrini F;
2002
Abstract
The characteristic of two elm resistant to DED recently released are described. 'San Zanobi' is monocormic and shows exceptionally rapid growth on fertile soils and in temperate climates, suggesting that it could be used for timber production. Its habit is cone-shaped with pronounced apical dominance, resulting in limited lateral branching.'Plinio' grows rapidly, although slightly slower than 'San Zanobi'. It adapts readily to Mediterranean mountainous climates of Northern Italy. 'Plinio' is used as an ornamental shade tree. Resistance to DED was assessed by two tests performed by artificially inoculation of the F1 progeny and then on rooted cuttings of the seedlings resulted more resistant in the previous assay. The symptoms, were compared with clones having known DED responses ('Lobel', moderately resistant; 'Urban' resistant; and CNR 118 highly susceptible). The resistance levels of the clones described here were significantly higher than the resistance levels of 'Lobel' and 'Urban'.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
