Abstract
Black spruce (Picea mariana [Mill.] B.S.P.) and jack pine (Pinus banksiana Lamb.) seedlings were transplanted into Japanese paperpots at five different stages of development between the occurrence of an erect hypocotyl and 14 days after initiation of primary needles. Transplanting difficulty increased between the first and last treatments, and transplanting generally became impracticable after the stage of primary-needle initiation. Transplanting had a relatively minor effect on the eventual size of 12-week-old pine and 16-week-old spruce seedlings, although the incidence of root deformities inside the container increased rapidly as transplanting was delayed beyond the erect-hypocotyl stage. These deformities persisted after seedlings were outplanted, but did not appear to have a negative effect on the subsequent growth of new roots into the planting medium. Despite the absence of major adverse effects, it is recommended that transplanting be avoided as a routine practice for supplementing stocking in trays of containerized seedlings because of possible biological risks, the difficulty of ensuring careful transplanting and high labor costs.
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References
Bannan, M. W. 1942. Notes on the origin of adventitious roots in the native Ontario conifers. Amer. J. Bot. 29(8):593–598.
Bergman, F. and Häggström, B. 1976. Some important facts considering planting with rooted forest plants. For. Chron. 52: 266–273 (Transl. by R. A. Hellenius from Särtryck ur Sveriges Skogsv»rdsförbunds Tidskrift nr 6 - 1973).
Carlson, L. W. 1979. Guidelines for rearing containerized conifer seedlings in the Prairie Provinces. Dep. Environ., Can. For. Serv., Edmonton, Alta. Inf. Rep. NOR-X-214.64 p.
de Champs, J. 1978. Influence of various containers on the root form of some conifers planted in France. pp. 133–141. In: Van Eerden, E. and Kinghorn, J.M. (Eds), Proc. Root Form of Planted Trees Symposium. B.C. Min. For./Can. For. Serv., Dep. Environ., Can. For Serv., Victoria, B.C., Joint Rep. No 8.
Hagner, S. 1978. Observations on the importance of root development in the planting of containerized tree seedlings. pp. 109–113. In: Van Eerden, E. and Kinghorn, J.M. (Eds), Proc. Root Form of Planted Trees Symposium. B.C. Min. For./Can. For. Serv., Dep. Environ., Can. For. Serv., Victoria, B.C., Joint Rep. No. 8.
Huuri, O. 1978. Effects of various treatments at planting a of soft containers on the development of Scots pine (Pinus silvestris L.). pp. 101–108. In: Van Eerden, E. and Kinghorn, J.M. (Eds), Proc. Root Form of Planted Trees Symposium. B.C. Min. For./Can. For. Serv., Dep. Environ., Can. For. Serv., Victoria, B.C., Joint Rep. No. 8.
McClain, K. M. 1981. Growth, nutrition and root development of Ontario tubelings, plugs and 3 + 0 bare-root black spruce. pp. 331–341. In: Scarratt, J. B., Glerum, C. and Plexman, C. A. (Eds), Proc. Canadian Containerized Tree Seedling Symposium. Dep. Environ., Can. For. Serv., Sault Ste. Marie, Ont. COJFRC Symp. Proc. O-P-10.
Morrison, I. K. and Armson, K. A. 1968. The rhizometer — a device for measuring roots of tree seedlings. For. Chron. 44: 21–23.
Sokal, R. R. and Rohlf, F. J. 1981. Biometry. The principles and practice of statistics in biological research, 2nd ed. McGraw-Hill, New York. 481 p.
Sutton, R. F. 1980. Root system morphogenesis. N. Z. J. For. Sci. 10(1): 264–292.
Tinus, R. W. and McDonald, S. E. 1979. How to grow trees in greenhouses. USDA For. Serv., Rocky Mt. For. and Range Exp. Stn., Gen. Tech. Rep. RM-6.256 p.
Van Eerden, E. and Kinghorn, J. M. (Eds). 1978. Proceedings of the Root Form of Planted Trees Symposium. B.C. Min. Forests/Can. For. Serv., Dep. Environ., Can. For. Serv., Victoria, B.C., Joint Rep. No. 8. 357 p.
Winer, B. J. 1971. Statistical principles in experimental design, 2nd ed. McGraw-Hill, New York. 907 p.
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Scarratt, J.B. Effect of early transplanting upon growth and development of spruce and pine seedlings in paperpot containers. New Forest 4, 247–259 (1990). https://doi.org/10.1007/BF00119204
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DOI: https://doi.org/10.1007/BF00119204