@article{paperid:1081082, author = {AliReza Safahani Langeroudi and Kamkar, Behnam}, title = {Field screening of canola (Brassica napus) cultivars against wild mustard (Sinapis arvensis) using competition indices and some empirical yield loss models in Golestan Province, Iran}, journal = {Crop Protection}, year = {2009}, volume = {28}, number = {7}, month = {July}, issn = {0261-2194}, pages = {577--582}, numpages = {5}, keywords = {Canola Wild mustard Competitive ability Empirical yield loss model Competition index Weed density}, }