文献类型：会议论文

英文题名：Study on combined selection of provenances/families of Eucalyptus tereticornis

作者：Xu, JM[] Lu, ZH[] Li, GY[] Bai, JY[]

第一作者：徐建民

通信作者：Xu, JM[1]

机构：[1]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou 510520, Guangdong, Peoples R China

会议论文集：International Symposium on Eucalyptus Plantations

会议日期：SEP 01, 2002-SEP 06, 2003

会议地点：Guangzhou, PEOPLES R CHINA

语种：英文

年份：2003

摘要：The results of Eucalyptus tereticornis provenance/families trial involving 100 families within 14 provenances showed that there were highly significant differences in growth and other characteristics among families and provenances. Growth characteristics were closely correlated with stem form (SF) and under branch height (CBH) except branch size (BR). Individual and family heritabilities were relatively high. At an age of 7 years old, the mean values of height (H), DBH and individual volume (V) of the best provenance (No. 13659) were 1.27, 1.32 and 2.14 times, respectively, of those of the worst provenance (No. 13308). Mean individual volume of the best family (No. 17) (0.06134 m(3)) was 3.61 and 1.74 times of those of the worst family (No.33) and the whole population (all families), respectively. By using multi-trait index as the criteria, 22 superior families were selected, and the estimated gains were 7.31%, 6.39%, 18.01%, 13.77%, 8.22% and 5.36% for H, DBH, V, CBH, SF and BR, respectively.