|Hybrids of Eucalyptus urophylla|
Eucalyptus clones (a hybrid of Eucalyptus urophylla and a cross betweenE. urophylla x E. camaldulensis) The clones were cultivated under CO2 concentrations of ~394ppmv and 553 and 878ppmv. In the treatments with 553 and 878, the plants of both clones had greater growth (215 % and 219 % increases in leaf area and 22 % and 24 % in stem diameter, respectively), a longer incubation period (65 % for both CO2 concentrations) and less disease severity (48 % and 78 % reduction, respectively) on average compared with the plants cultivated at 394.
The results show that an increased CO2 concentration can reduce the severity of Ceratocystis wilt and stimulate the growth of Eucalyptus clonal plantlets.
From CO2 Science
What it means
In the concluding sentence of their paper's abstract, dos Santos et al. say their results show that "an increased CO2 concentration can reduce the severity of Ceratocystis wilt and stimulate the growth ofEucalyptus clonal plantlets." And it does it all ... at one and the same time.
Dos Santos, M. de S., Ghini, R., Fernandes, B.V. and Silva, C.A. 2013. Increased carbon dioxide concentration in the air reduces the severity of Ceratocystis wilt in Eucalyptus clonal plantlets. Australasian Plant Pathology42: 595-599. (Link)