Seed collection of Durable Eucalypt Species
For most of these species, seed collection is being undertaken from wild populations. For one species, there is genetically improved seed and plant material available from Australia and other countries that will be purchased and introduced to the
NZDFI programme.
As trees are very variable in their wild state, and because natural selection operates on extremes - out of season frosts rather than mean annual temperatures, for example – where possible, seed collections need to be made across a wide range of wild families in different areas. Therefore
seed collection sites extend across Queensland, NSW and Victoria, in order to sample across a wide climatic range, soil types etc (Jovanovic and Booth, 2002). In addition, for some species, there are mature stands of trees established at several farm sites in New Zealand from where
seed may be collected, if landowner access is agreed.
  
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