The genetic materials used in this study were obtained from
OP seedlots of 148 native-forest families: 132 originated in
Victoria collected by Kylisa Seeds Pty Ltd and 16 in New
South Wales collected by CSIRO Australian Tree Seed
Centre. The eight Argentinean OP families were derived from
trees phenotypically selected for growth and form in a
commercial plantation at Ramallo, northern Buenos Aires
province. Additionally, the Argentinean land race was
represented by four commercial bulks from Bordenave, Junín,
Sierra de la Ventana, and 25 de Mayo. The number of families
sampled (i.e., seedlots) varied from four to nine in five
provenances and over ten for the rest. The number of families
planted per trial ranged from 77 to 157. Details of the genetic
material used in this study can be found in the Table 1