Articles
ANALYSIS OF THE BEHAVIOUR OF VARIOUS ROOTSTOCKS AND BOTANICAL SPECIES OF THE GENUS ROSA TOWARDS AGROBACTERIUM TUMEFACIENS
Article number
424_38
Pages
215 – 220
Language
Abstract
Agrobacterium tumefaciens is the pathogenic agent responsible for crown-gall.
This soil disease causes serious damage to the rose trees.
That is why a collection of rootstocks and botanical species of the genus Rosa were tested for their behaviour towards Agrobacterium tumefaciens. Distinctive cuttings were rooted in rockwool and inoculated by injury with a strain of Agrobacterium tumefaciens of strong or medium virulence.
The controls were only injured. 36 plants by cultivar/strain combination were spread out in a block-plot under controlled conditions.
Notations about gall presence/absence, gall size and dimensions of shoots were performed.
The results show a great variability in the response to inoculation.
Some rootstocks have an interesting behaviour that justifies the setting up of a rootstock selection program.
This soil disease causes serious damage to the rose trees.
That is why a collection of rootstocks and botanical species of the genus Rosa were tested for their behaviour towards Agrobacterium tumefaciens. Distinctive cuttings were rooted in rockwool and inoculated by injury with a strain of Agrobacterium tumefaciens of strong or medium virulence.
The controls were only injured. 36 plants by cultivar/strain combination were spread out in a block-plot under controlled conditions.
Notations about gall presence/absence, gall size and dimensions of shoots were performed.
The results show a great variability in the response to inoculation.
Some rootstocks have an interesting behaviour that justifies the setting up of a rootstock selection program.
Publication
Authors
S. Reynders-Aloisi, G. Pelloli, A. Bettachini
Keywords
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