Weed Seeds Mixed to Wheat Grains in Mu？ Province

This study was carried out to determine the weed seed contamination in the wheat grain with samples from 71 villages in Mu？ province in 2016. As a result, 18 different weed seeds belonging to 23 genus from 13 families werefound mixed to wheat grain in Mu？ Province and themost widespread weed species in the samples were from Apiaceae and Brassicaceae families. Among the weed seeds mixed to 1 kg of wheat, the highest number of seeds was belong to Sinapis arvensis L. with 459 seeds. This species was followed by Cephalaria syriaca (L.) Schrad., Polygonum aviculare L. and Caucalis daucoides L. with 241, 222, 214 seeds respectively. Based on the highest weight and mixing ratio criteria, C. daucoides ranked first with 4.13 g and 0.41%. This species was followed by C. syriaca (3.80 g and 0.38%), Galium aparine L. (2.10 g and 0.21%) and S. arvensis (1.77 g and 0.18%). The average weight of Mu？ province was 1621, the average weight and mixing ratio were 15.79 g and 1.58%