Mckenney D W, Davis J S, Tumbull J W, et al. The impact of Australian tree species research in China [ A ]. ACIAR Economic Assessnaent Series[C]. Canberra, 1991(12) : 6 - 7.
[7]
SAS Institute Inc. SAS/STAT User\\' s Guide [ M ]. Version 6 : vol. 1, vol.2.fourth ed. Cary, NC: SAS Institute Inc, 1990:891 - 996, 1661-1673.
[8]
Cotteri P P, Dean C A. Successful Tree Breeding with Index Selection[M]. CSIRO Australia, 1990.