1. US Department of Agriculture (2013)
http://www.ers.usda.gov/publications/whs-wheat-outlook/whs-13i.aspx#.UkIrq9I0WuJ
. Accessed 21 Jan 2014
2. Singh S, Punia SS (2008) Effect of Seeding depth and flooding on emergence of Malva parviflora, Rumex dentatus and R. spinosus. Ind J Weed Sci 40:178–186
3. Chhokar RS, Malik RK, Balyan RS (1999) Effect of moisture stress and seedling depth on germination of littleseed canarygrass (Phalaris minor Retz). Indian J Weed Sci 31:78–79
4. Chhokar RS, Sharma RK, Jat GR, Pundir AK, Gathala MK (2007) Effect of tillage and herbicides on weeds and productivity of wheat under rice-wheat growing system. Crop Prot 26:1689–1696
5. Franke AC, Singh S, McRoberts N, Nehra AS, Godara S, Malik RK, Marshall G (2007) Phalaris minor seedbank studies: longevity, seedling emergence and seed production as affected by tillage regime. Weed Res 47:73–83