Investigating multiple populations to gain an understanding of genotype
x environment interaction information is common practice among modern
tree breeders. Our study dealt with a single site; however, the trial
represented multiple provenances, some of which were partially
geographically isolated from the remainder of the population. No
previous studies have investigated divergent evolution in E.
bosistoana. While no clear differences existed between provenances
within this experiment, further work is needed to identify where true
provenance boundaries lie, as a better understanding of the genetic
isolation of various sub populations of E. bosistoana may help
explain the comparatively high heritabilities in this study.
Table 4 shows estimated expected gains under different selection regimes
of the genetics within the trail. These gains are limited to the
Woodville site, at age 21 months, using the testing procedures
implemented here. The results show promise for an improved population to
be used for future breeding efforts to improve both growth and wood
properties.