- اسدی، ف. و قاسمی، ر.، 1386. ارزیابی موفقیت ریشهزایی قلمه کلنهای صنوبر با استفاده از تیمارهای مختلف. فصلنامه تحقیقات جنگل و صنوبر، 15(2): 143-134.
- بصیری، ع.، 1370. طرحهای آماری در علوم کشاورزی. انتشارات دانشگاه شیراز. 595 صفحه.
- Demchik, M., Current, D., Johnson, W., Riemenschnelder, D., Vongroven, S. and Wene, E., 2002. Hybrid Poplars as an alternative Crop, University of Minnesota extension Service, USA, 7 p.
- Dickman, D., Phipps, H. and Netzer, D., 1980. Cutting diameter influences early survival and growth of several populus clones. USDA forest service, USA. 4 p.
- Duke, J.A., 1983. Populus deltoids Bartr Ex Marsh, handbook of energy crops. PurdueUniversity, West Lafayette, USA, Unpublished.
- Hansen, E., Toltsed, D. and Tower, M., 1991. Planting depth of hybrid poplar cuttings influences number of shoots. USDA Forest service, USA, 4 p.
- Haog, J.Ch. and Short, H., 1992 .Use of willow and cottonwood cuttings forvegetating shorelines and riparian areas. USDA Natural Resources Conservation Service, Aberdeen, USA, 12 p.
- Kaiser, C.E., Rice, D.E. and Wallace, K.R., 1994. Stand establishment and culture of hybrid poplar, Proceedings of the IEA/BA, International Conference Mobile, Alabama, USA: 25-30.
- Nestiky, S., 1997. Poplars, their cultivations and use in Slovakia. Forest Research Institute Zvolen, Slovakia, 1p.
- Robinson, D.J. and Raffa, K.F., 2003. Importance of cutting diameter and method of production on early growth of hybrid poplar, North Carolina State University, USA, 5 p.
- Russell, M.B. and Honkala, B.H., 1990. Silvics of North America: Vol 2: Hardwoods, U.S. Department of Agriculture, Forest Service, USA, 877 p.
- Schmidt, L., 1993. Vegetative Propagation. UNDP/FAO Regional Project on Tree Breeding and Propagation, Philippines.
- Eyre, F.H., 1980. Forest Cover types of the United States and Canada, Society of American foresters. Washington, DC. 148 p.
- Winer, B.J., 1972. Statistical principles in experimental design, McGraw-Hill publications.