A Novel System for Propagating Acer rubrum ‘Franksred’ Cuttings Without Mist
James S. Owen Jr and Brian K. Maynard
Recirculating subirrigation is a new hybrid of existing techniques for propagating cuttings without mist that offers exceptional control of the rooting environment. The system under development offers a new technique that growers can use for winter propagation when bottom heat is desired. This recirculating subirrigation system maintains an optimum root zone temperature to successfully root cuttings in less than optimal greenhouse conditions. This economical, closed-loop system, could also increase ease of OSHA/EPA compliance by allowing workers to apply chemicals, such as fungicides or growth regulators, through the subirrigation water with minimal risk of exposure.
Recirculating subirrigation combines aspects of hydropropagation (Boland and Hanger, 1991) and subirrigation propagation systems (Holt et al., 1998). Subirrigation is a fairly new propagation innovation that has shown promising results for rooting several woody species (Aiello and Graves, 1998;Giroux et al.,
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