Propagation of Atlantic White Cedar by Stem Cuttings

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  • 1 Department of Horticultural Science, North Carolina State University, Raleigh NC 27695-7609

Hardwood and softwood stem cuttings of 5-year-old Atlantic white cedar [Chamaecyparis thyoides (L.) B.S.P.] were cut to 12-cm (short) or 24-cm (long) lengths, treated with 0 to 15 g IBA/liter in 50% isopropyl alcohol, and rooted in a raised greenhouse bench under intermittent mist. When hardwood cuttings were collected in February, short cuttings survived and rooted better than long cuttings. Survival and percent rooting for softwood cuttings collected in late August was virtually 10070 regardless of cutting length. Long cuttings produced more roots and longer roots with hardwood and softwood material. IBA was unnecessary for rooting, but it markedly increased the number of roots. Chemical name used: 1H-indole-3-butyric acid (IBA).

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