1. Texas AgriLife Research Center; 1229 N. US Hwy. 281 Stephenville TX 76401
2. Dep. of Agronomy; Tarleton State Univ.; Box T-0050 Stephenville TX 76402
3. Louisiana State Univ. AgCenter-Hill Farm Research Station; 11959 Hwy. 9 Homer LA 71040
4. USDA-NRCS; James E. “Bud” Smith Plant Materials Center; 3950 FM 1292 STE 100 Knox City TX 79529
5. USDA-NRCS; East Texas Plant Materials Center; 6598 FM 2783 Nacogdoches TX 75964