1. Anderson WP (1996) Weed ecology. Weed science: principles and applications, 3rd edn. West Publishing Company, St. Paul, pp 27–38
2. APHIS (2015) Petitions for determination of nonregulated status. http://www.aphis.usda.gov/biotechnology/petitions_table_pending.shtml . Accessed 15 Apr 2015
3. Baker HG (1965) Characteristics and modes of origin of weeds. In: Baker HG, Stebbins GL (eds) The genetics of colonizing species. Academic Press, New York, pp 147–168
4. Beard BH, Knowles PF (1971) Frequency of cross-pollination of soybeans after seed irradiation. Crop Sci 11:489–492
5. Castiglioni P, Warner D, Bensen RJ, Anstrom DC, Harrison J, Stoecker M, Abad M, Kumar G, Salvador S, D’Ordine R, Navarro S, Back S, Fernandes M, Targolli J, Dasgupta S, Bonin C, Luethy MH, Heard JE (2008) Bacterial RNA chaperones confer abiotic stress tolerance in plants and improved grain yield in maize under water-limited conditions. Plant Physiol 147(2):446–455