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Identifying trees with high heartwood and extractives content at a young age is a fundamental challenge for the NZDFI.
UC PhD student Yanjie Li has extracted several thousand E. bosistoana cores from 99 families of trees as young as 6 years old. Heartwood volume in the cores has been measured, and near-infrared spectroscopy (NIR) used to analyse them for extractives content. Results show familial differences in both heartwood and extractives content, indicating these traits are under genetic control. Good news for NZDFI's tree breeders!
Read more on page 6 of our latest Project Update.