**5. Conclusions**


**Author Contributions:** Methodology, H.T. and A.E.; Validation, H.T.; Investigation, H.T. and A.E; Writing-Original Draft Preparation, H.T., A.E. and A.P.; Writing-Review & Editing, H.T., A.E. and A.P.; Visualization, H.T. and A.E; Supervision, H.T and A.P.

**Funding:** This research received no external funding.

**Acknowledgments:** Authors are grateful to Jack Norton (Retired, Horticulture & Forestry Science, Queensland Department of Agriculture, Forestry and Fisheries, Australia) for his constant scientific support and inspiration, as well as Alexander von Humboldt Stiftung, Germany.

**Conflicts of Interest:** The authors declare no conflict of interest.
