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SUMMARY Detailed observations have been made of the developing growth rings in a 30 year old plantation of Pinus radiata during 1961–62. The occurrence of a sharp drought period followed by heavy rain and favourable growing conditions resulted in the formation of a “false ring”. Weekly samples...
SUMMARY A study has been made in a number of blackbutt forests to determine the nature of variation in flowering and seeding characteristics of the species. In all stands the involucre of bracts surrounding the developing blackbutt inflorescence is shed during March and April. In the following...
SUMMARY The breeding programme at Traralgon aims to improve Eucalyptus regnans F. v. M. as a forest tree by increasing the rate of growth, improving wood quality, and increasing resistance to damage by fire. Improvement may be accomplished in three ways:—(1) provenance trials (to determine the...
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