Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế, đề tài: "Effects of watering after lifting and exposure before planting on plant quality and performance in Oriental spruce . | Ann Sci For 1996 53 139-143 Elsevier INRA 139 Short note Effects Of watering after lifting and exposure before planting on plant quality and performance in Oriental spruce MGenẹ Department of Silviculture Faculty of Forestry Karadeniz Technical University Trabzon 61080 Turkey Received 22 December 1994 accepted 31 May 1995 Summary Four-year-old transplants of Oriental spruce P cea orientalis L Link were lifted on 28 March 1990 30 March 1990 and 2 April 1990 during the postdormancy phase. Some of them were then watered immediately and all of the seedlings watered and unwatered were kept in moist conditions within cloth sacks. A part of the watered transplants were planted immediately whereas the others were planted after 60 min exposure. However the unwatered transplants were subjected to drought on the ground for 0 15 30 and 60 min. Plants with 60 min exposure were watered before planting only. After treatments shoot water potentials were measured using the pressure chamber technique. Best water potential survival and growth were obtained from transplants watered after lifting. In these seedlings exposure particularly stimulated root growth. With unwatered transplants however both water potential and relative increment of height or dry weight declined significantly as exposure time prolonged but survival and rate of terminal shoots reduced only slightly. Picea orientalisl watering exposure shoot water potential I seedling performance Resume Effets de mouillage et de rexposition à l air avant transplantation sur la qualité et les performances de plants dépicéa oriental. Les plants d epicea oriental repiqués à 4 ans sontarra-chés pendant la période post-dormance et mouillés OU non immédiatement puis proteges dans des sacs humides. Une partie des plants mouillés sont plantés dans 1 état OÙ ils se trouvent les autres sont d abord laissés à fair libre pendant 60 minutes puis sont plantés. D autre part les plants non mouillés sont laissés à fair fibre pendant 0 15 et 30 .
