Resistance of Echinochloa crusgalli (L.) Beauv. to  Quinclorac in the Rice Growing region of the  Middle and Lower Reaches of Yangtze River  in China
MA Guolan1,2, BAI Lianyang1,4,*, LIU Ducai2, LIU Xueyuan2, YU Liuqing3,*
Chinese Journal of Rice Science . 2013, (2): 184 -190 .  DOI: 10.3969/j.issn.10017216.2013.02.011