Response of American Elm Seedlings to Treatment with Captan and Cycloheximide
Abstract:Seedlings of Ulmus americana L., grown in sand culture in the greenhouse, were treated twice weekly for 2 months with 600 and 1500 ppm captan and 2 and 10 ppm cycloheximide. The CO2 uptake of individual intact plants was recorded weekly by using a specially designed polyethylene photosynthesis chamber. Captan had no appreciable effect on CO2 exchange but caused a significant increase in the root growth of treated plants. Cycloheximide, although causing some initial phytotoxicity and a corresponding decline in photosynthesis, eventually effected a pronounced increase in the growth of lateral shoots.
Document Type: Journal Article
Affiliations: Research Plant Pathologist, Dept. of Plant Pathology and Physiology, Virginia Polytechnic Institute, Blacksburg
Publication date: 1969-03-01
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