Dry weights
Dry weights of inoculated plants at day 87 ranged from -50% to 350%O of the dry weights of uninoculated plants, depending on the fungal isolate (Fig. 1). Plants also responded to inoculation at 63 d, but at this earlier stage of growth responses were much smaller than those observed at the later harvest (data not presented). Some fungal species (Descolea maculata, Hebeloma westraliense, Laccaria laccata and Pisolithus tinc- torius) appeared to be more effective in increasing plant growth than others, although there was also marked variation between isolates of the same species. Isolates of ectomycorrhizal fungi which were collected from Tasmania were no more effective in increasing the growth of E. globulus (which is native to Tasmania) than isolates collected from other regions of Australia (Fig. 1). There was little effect of ectomycorrhizal inocu- lation on the partitioning of dry matter between roots and shoots at either harvest (Harvest 2 data presented in Table 2). For most treatments, there was also little effect of inoculation on the ratio of fine roots to coarse roots at either harvest (Harvest 2 data
presented in Table 2). Inoculated plants which were colonized extensively had a higher fine root/coarse root ratio than uninoculated plants in some instances.
Dry weights Dry weights of inoculated plants at day 87 ranged from -50% to 350%O of the dry weights of uninoculated plants, depending on the fungal isolate (Fig. 1). Plants also responded to inoculation at 63 d, but at this earlier stage of growth responses were much smaller than those observed at the later harvest (data not presented). Some fungal species (Descolea maculata, Hebeloma westraliense, Laccaria laccata and Pisolithus tinc- torius) appeared to be more effective in increasing plant growth than others, although there was also marked variation between isolates of the same species. Isolates of ectomycorrhizal fungi which were collected from Tasmania were no more effective in increasing the growth of E. globulus (which is native to Tasmania) than isolates collected from other regions of Australia (Fig. 1). There was little effect of ectomycorrhizal inocu- lation on the partitioning of dry matter between roots and shoots at either harvest (Harvest 2 data presented in Table 2). For most treatments, there was also little effect of inoculation on the ratio of fine roots to coarse roots at either harvest (Harvest 2 data presented in Table 2). Inoculated plants which were colonized extensively had a higher fine root/coarse root ratio than uninoculated plants in some instances.
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