Trials of Eucalyptus smithii and other eucalypt species in Yunnan Province, China. [Workshop paper].
1994
Zheng Y. | Wang H. | Zhang R. | Ma Q.
A trial established in July 1987 at Haikou Forest Farm, 50 km southwest from Kunming City, comprised 30 species and provenances of temperate eucalypts from Australia. The experimental design was randomised complete blocks, with 9 replicates and 9-tree single row plots. Local landraces of Eucalyptus maidenii and E. globulus were used as controls. At age 4.5 years, significant differences were found between species and provenances in growth rates, pest resistance and adaptability. E. smithii (15092, 15059), E. benthamii, E. badjensis, E. nitens and E. camphora had faster growth than local E. maidenii, and provenance 15092 of E. smithii exceeded local E. maidenii in volume by 101 percent. In addition to above species and provenances, E. grandis, E. chapmaniana, E. smithii (15091, 15090), E. nova-anglica, E. amplifolia, E. camphora and local E. globulus had the highest survival while E. cypellocarpa and E. smithii (15090) had the lowest. Newly introduced species are more resistant to pests and diseases than the two controls. Several species suffered slightly from drought, E. benthamii and E. triflora being affected more than others. Frost damaged all species, most severely E. cypellocarpa. Of those that exceeded local E. maidenii in growth, all but E. benthamii have higher essential oil content than the controls.
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