Early results from a progeny trial of Eucalyptus globulus in Yunnan Province, China. [Workshop paper]
1994
Zang, D. | Wang, H. | Zheng, Y. (Chinese Academy of Forestry, Beijing (China). Research Inst. of Forestry)
The establishment of a seed orchard of Eucalyptus globulus Labill. ssp. globulus at Yipinglang State Farm, Yunnan Province, China is described. The progeny trial has 19 complete replications of two-tree plots of 270 open-pollinated family seedlots, laid out in an incomplete block design. The seedlots were of three categories (natural populations, Yunnan land race and seed orchard selections), which were further subdivided into 11 regions and 60 provenances. Data is analysed from an assessment of growth, form and other characteristics of the trees at age 20 months. Results are only preliminary and rankings may change in later assessments, but two-tree plots (or multiple-tree plots) performed better and are strongly recommended over single-tree plot designs for large-scale progeny trials.
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