M. Dixon, T. Graham, P. Bam, J. Kervin, N. Tran, Ping Zhang, B. Reeves, A. Downey
High mortality rates among most species of nursery trees after transplanting is generally attributed to water stress imposed by a range of soil and other environmental conditions. This study examined the efficacy of a consortium of mycorrhizae (Root Rescue Landscape Powder), comprised of 20 species of both endo- and ecto-mycorrhizae, in mitigating water stress when inoculated into the root zone of recently transplanted trees [Thuja occidentalis ‘Smaragd’ (emerald pyramidal cedar) and Acer rubrum ‘Brandywine’ (Brandywine red maple)]. The water status of the trees was monitored with automated stem psychrometers measuring stem water potential (Ψ) at 30-min intervals for at least 2 weeks after transplanting. Treated trees exhibited a significant reduction in mid-day water stress and enhancement of overnight rehydration, relative to control trees, when inoculated with the consortium of mycorrhizae, as shown by diurnal patterns of water stress and recovery.
Dixon, M., Graham, T., Bam, P., Kervin, J., Tran, N., Ping Zhang, , Reeves, B. and Downey, A. (2015). REDUCING DROUGHT STRESS IN TRANSPLANTED TREES USING MYCORRHIZAE©. Acta Hortic. 1085, 119-127
DOI: 10.17660/ActaHortic.2015.1085.21

Acta Horticulturae