TY - JOUR
T1 - Hydraulic kinetics of graft union in different Olea europaea L. scion/rootstock combinations
AU - Motisi, Antonio
AU - Gascó, null
AU - Raimondo, null
AU - Lo Gullo, null
AU - Salleo, null
AU - Nardini, null
AU - Gortan, null
PY - 2007
Y1 - 2007
N2 - The hydraulic resistance of young olive trees grafted on rootstocks with contrasting size-controlling potential was measured 30, 90, 360 and 480days after grafting. Olive (Olea europaea L.) clones inducing plant vigorous growth (Leccino ‘Minerva’, LM) or dwarfing (Leccino ‘Dwarf’, LD)were studied in different scion/rootstock combinations (LD/LD, LD/LM, LM/LD, LM/LM). Plants growing on LD root systems developed lowerleaf surface areas (about 50% less) than plants grafted on LM rootstocks. Graft union represented the largest fraction (up to 85%) of whole-planthydraulic resistance 30 days after grafting, and still represented an important fraction of it 2 months later (40–55%). Four-hundred and eightydays after grafting, the hydraulic resistance of the graft union became negligible (<3%) with no difference among the different scion/rootstockcombinations. Our data reinforce the idea of graft hydraulics not playing a role in depressing the vigour of the scion as observable in adult plantsgrafted onto dwarfing rootstocks. The long time required for the vascularisation to be complete, on the contrary, represents the main risk forsuccessful olive breeding.
AB - The hydraulic resistance of young olive trees grafted on rootstocks with contrasting size-controlling potential was measured 30, 90, 360 and 480days after grafting. Olive (Olea europaea L.) clones inducing plant vigorous growth (Leccino ‘Minerva’, LM) or dwarfing (Leccino ‘Dwarf’, LD)were studied in different scion/rootstock combinations (LD/LD, LD/LM, LM/LD, LM/LM). Plants growing on LD root systems developed lowerleaf surface areas (about 50% less) than plants grafted on LM rootstocks. Graft union represented the largest fraction (up to 85%) of whole-planthydraulic resistance 30 days after grafting, and still represented an important fraction of it 2 months later (40–55%). Four-hundred and eightydays after grafting, the hydraulic resistance of the graft union became negligible (<3%) with no difference among the different scion/rootstockcombinations. Our data reinforce the idea of graft hydraulics not playing a role in depressing the vigour of the scion as observable in adult plantsgrafted onto dwarfing rootstocks. The long time required for the vascularisation to be complete, on the contrary, represents the main risk forsuccessful olive breeding.
KW - 360 and 480 days after grafting. Olive (Olea europaea L.) clones inducing plant vigorous growth (Leccino ‘Minerva’
KW - 90
KW - LD) were studied in different scion/rootstock combinations (LD/LD
KW - LD/LM
KW - LM) or dwarfing (Leccino ‘Dwarf’
KW - LM/LD
KW - LM/LM). Plants growing on LD root systems developed lower leaf surface areas (about 50% less) than plants grafted on LM rootstocks. Graft union represented the largest fraction (up to 85%) of whole-plant hydraulic resistance 30 days after grafting
KW - The hydraulic resistance of young olive trees grafted on rootstocks with contrasting size-controlling potential was measured 30
KW - and still represented an important fraction of it 2 months later (40–55%). Four-hundred and eighty days after grafting
KW - on the contrary
KW - represents the main risk for successful olive breeding.
KW - the hydraulic resistance of the graft union became negligible (<3%) with no difference among the different scion/rootstock combinations. Our data reinforce the idea of graft hydraulics not playing a role in depressing the vigour of the scion as observable
KW - 360 and 480 days after grafting. Olive (Olea europaea L.) clones inducing plant vigorous growth (Leccino ‘Minerva’
KW - 90
KW - LD) were studied in different scion/rootstock combinations (LD/LD
KW - LD/LM
KW - LM) or dwarfing (Leccino ‘Dwarf’
KW - LM/LD
KW - LM/LM). Plants growing on LD root systems developed lower leaf surface areas (about 50% less) than plants grafted on LM rootstocks. Graft union represented the largest fraction (up to 85%) of whole-plant hydraulic resistance 30 days after grafting
KW - The hydraulic resistance of young olive trees grafted on rootstocks with contrasting size-controlling potential was measured 30
KW - and still represented an important fraction of it 2 months later (40–55%). Four-hundred and eighty days after grafting
KW - on the contrary
KW - represents the main risk for successful olive breeding.
KW - the hydraulic resistance of the graft union became negligible (<3%) with no difference among the different scion/rootstock combinations. Our data reinforce the idea of graft hydraulics not playing a role in depressing the vigour of the scion as observable
UR - http://hdl.handle.net/10447/17562
M3 - Article
VL - 60, n. 2
SP - 245
EP - 250
JO - Environmental and Experimental Botany
JF - Environmental and Experimental Botany
SN - 0098-8472
ER -