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Chemical root pruning of coniferous seedlings

, : Chemical root pruning of coniferous seedlings. Hortscience 17(4): 622-624

Conifer seedlings of 10 spp. from 6 genera [Abies amabilis, Picea glauca, P. sitchensis, Pinus contorta, P. monticola, P. ponderosa, P. sylvestris, Pseudotsuga menziesii, Thuja plicata, Tsuga heterophylla] were raised in containers coated on the inside with basic cupric carbonate in latex paint. The copper paint prevented lateral roots from growing down or around the container wall. After transplanting, the chemically root-pruned stock was capable, in most cases, of vigorous root growth. The effectiveness of the chemical root pruning treatment varied with species, container size, growing medium, and the concentration of cupric carbonate in the container wall coating.

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Related references

Burdett, A.; Martin, P., 1982: Chemical root pruning of coniferous seedlings Forest trees. HortScience 17(4): 622-624

Petaisto, R.L., 1982: Risk of fungal infection on coniferous seedlings after root pruning in forest nurseries. Fusarium, Cylindrocarpon and Trichoderma spp. were isolated from pruning wounds of pine and spruce. The risk of fungal infection was greater in a mineral soil nursery, where F. and C. spp. were more frequent, than in one using peat where the antag...

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