GEOGRAPHICAL VARIATION IN THE BREEDING SYSTEMS OF AN INVASIVE PLANT, EICHHORNIA CRASSIPES, WITHIN CHINA
REN Ming-Xun, ZHANG Quan-Guo, ZHANG Da-Yong
Chin J Plan Ecolo . 2004, (6): 753 -760 .  DOI: 10.17521/cjpe.2004.0098