Provenance trials of Juglans mandshurica

摘要

The data of provenance trial on Juglans mandshurica young tree were investigated and studied from different provenance. Analysis methods of variance and correlation analysis were used to analyze these data. The following conclu- sions were obtained: (1) The difference of growth characters of Juglans mandshurica is relatively significant among prove- nences; (2) The results of first trial has indicated that Juglans mandshurica growth trend expresses two-way gradual change trend with different longitude and latitude, but the second trial has no obvious gradual change trend. Height of Juglans mandshurica is negatively correlated with elevation; (3) The provenance of Shulan, Mao ershan and Baishishan were se- lected as superior provenance of afforestational seeds for Mao' ershan and its brink region.