Comparison and Selection of Eucalyptus Interspecific Hybrids

Progeny test was made with 13 hybrids of Eucalyptus urophylla × E.tereticornis, 10 hybrids of E. urophylla × E.camaldulensis, 1 hybrid of E. urophylla × (E. urophylla × E.tereticornis), 5 open pollinated families from the maternal trees of E. urophylla, and 1 open pollinated family from E. urophylla × E. tereticornis. Differences in height, diameter and volume were found at 0.01 significance level both among families and among replicates. Significant replicate among difference might be due to the uneven site condition to which hybrid was susceptible. Fifteen superior families and twelve superior hybrid individuals were selected out for further hybridization and clone test purposes.