1. Forage Imp. Div.Noble Foundation 2150 Sam Noble Parkway Ardmore OK 73402
2. AgResearch Grassl. Palmerston North New Zealand
3. Dep. of Crop and Soil SciencesUniversity of Georgia Athens GA 30602
4. Dep. of Animal ScienceVirginia Tech University Blackburg VA
5. Dexcel Ltd Hamilton New Zealand