1. Association of Official Seed Analysts (2006) Rules for testing seed. Association of Official Seed Analysts, Las Cruces
2. Bernard RL, Cremeens CR (1988) Registration of ‘Williams 82’ soybean. Crop Sci 28:1027–1028
3. Carlson JB, Lersten NR (2004) Reproductive morphology. In: Boerma HR, Specht JE (eds) Soybeans: improvement, production and uses, 3rd edn. American Society of Agronomy, Madison, pp 59–95
4. Copland LO, McDonald MB (1999) Principles of seed science and technology, 3rd edn. Springer, New York
5. Egli DB, TeKrony DM, Heitholt JJ, Rupe J (2005) Air temperature during seed filling and soybean seed germination and vigor. Crop Sci 45:1329–1335