GRAFTING OF AUSTRALIAN NATIVE PLANTS
J. W. Wrigley
This is a follow-up of work (2) reported previously in The Plant Propagator by the present author and at the 1973 ANZAAS Conference by Keith McIntyre, also of Canberra Botanic Gardens (1). I will be drawing heavily from material from both of these papers for this present approach.
The Australian flora includes a great number of species of good horticultural potential. Many species have been introduced to cultivation only in the last few years and even now, large numbers of valuable plants remain untried. It is, therefore, only recently that some of the problems associated with the cultivation of Australian native plants have become apparent.
Canberra Botanic Gardens has concentrated its resources on the study of the Australian flora and has the largest living collection of Australian native plants in the world. In 1969, large scale deaths occurred in the Botanic Gardens nursery. These were traced to the root rot fungus Phytophthora cinnamomi. On further investigation, it
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