1. Allard G, Nelson CJ, Pallardy SG (1991) Shade effects on growth of tall fescue: I. Leaf anatomy and dry matter partitioning. Crop Sci 31:163–167
2. Appleton B, Berrier R, Harris R, Alleman D, Swanson L (2009) The walnut tree: allelopathic effects and tolerant plants. Virginia Cooperative Extension Publication 430-021
3. Brodie J (1985) Vegetation anaylsis. In: Grassland studies. Unwin Hyman, Boston
4. Buergler AL (2004) Forage production and nutritive value in a temperate Appalachian silvopasture. M.S. Thesis, Virginia Polytechnic Institute and State University
5. Buergler AL, Fike JH, Burger JA, Feldhake CR, McKenna JA, Teutsch CD (2005) Botanical composition and forage production in an emulated silvopasture. Agron J 97:1141–1147