PHENOTYPIC DIVERSITY IN NATURAL POPULATIONS OF PICEA BALFOURIANAIN SICHUAN, CHINA
GU Yun-Jie, LUO Jian-Xun, WU Yuan-Wei, CAO Xiao-Jun
Chin J Plant Ecol . 2009, (2): 291 -301 .  DOI: 10.3773/j.issn.1005-264x.2009.02.006