Research Institute of Forests and Rangelands Iranian Journal of Wood and Paper Science Research 1735-0913 8 8- No. 217 1999 09 23 Effect of spacing on wood properties and yeild of Two Populus Deltoides clones in safrabasteh (Guilan) Effect of spacing on wood properties and yeild of Two Populus Deltoides clones in safrabasteh (Guilan) 1 30 117489 10.22092/ijwpr.1999.117489 FA Abdolrahman Hosseinzadeh Wood and forest products division, Research Institute of Forests and Rangelands, Agricultural Resear Noshin Toghraei Wood and forest products division, Research Institute of Forests and Rangelands, Agricultural Resear Nayerolsadat Sadraei Wood and forest products division, Research Institute of Forests and Rangelands, Agricultural Resear Fardad Golbabaei Wood and Forest Products Science Research Division, Research Institute of Forests and Rangelands, Agricultural Research Education and Extension Organization (AREEO) P.O. Box 13185-116, Tehran, Iran Ahmad Hemati Research group of fast growing plants, Research Institute of Forests and Rangelands, Agricultural Resear Journal Article 2018 10 15