You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
Sphagnum moss was a better potting medium than sand-peat mixtures. Single-node cuttings from the uppermost part of the stem, just below the leaves, produced larger plants than did cuttings from basal nodes. The height of plants 117 days after planting was directly proportional to the diameters and lengths of cuttings. The time required for emergence was also indirectly proportional to cutting length. Cuttings which were pressed into the potting media until their surfaces were barely visible produced larger plants than cuttings planted 3 inches deep. Dieffenbachia varieties responded similarly to the treatments, but D. amoena grew faster than D. picta, D. picta 'Exotica' and D. picta 'Rudolph Roehrs.'
Economic Botany © 1969 New York Botanical Garden Press