Effect of Endomycorrhizal Inoculum on Root Initiation and Development of Viburnum dentatum L. Cuttings
Viburnum dentatum L. cuttings were inoculated with Glomus fasciculatum (Thaxter) Gerdemann and Trappe spores, hyphae and associated soil and root segments at 5 spores/cm3 of medium. Fresh weight of roots, number of roots, and mycorrhizal condition were determined on the fourth and each subsequent week for 5 additional weeks. Inoculation during propagation resulted in uniform mycorrhizal infection (30-50%) and increased root development. A positive interaction between mycorrhizal development and root initiation also was observed.
Contributor Notes
Journal Paper No. 9876 of the Agricultural Experiment Station, Purdue University, West Lafayette, IN 47907, U.S.A. Prepared as part of an investigation by the Joint Highway Research Project, Engineering Experiment Station, Purdue University, in cooperation with the Indiana State Highway Commission and the U.S. Department of Transportation Federal Highway Administration.
2Graduate Student and Associate Professor of Horticulture, resp. Current addresses: University of Florida, 3205 College Avenue, Fort Lauderdale, FL 33314; and American Association of Nurserymen, 1250 I Street, N.W., Suite 500, Washington, DC 20005.