Effect of ethylene on carnation growth
Date
1974-06
Authors
Piersol, John R., author
Hanan, Joe J., advisor
Holley, W. D., committee member
Ross, Cleon, committee member
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Abstract
Carnation flowers are susceptible to damage when exposed to rather low ethylene dosages. This research confirmed that ethylene also affects the growth of the carnation plant. Severe growth reduction occurred when plants were treated continuously with 100 ppb, 300 ppb, and 500 ppb C2H4. Plants treated with the same concentrations for shorter periods showed less damage. Ethylene treatment at different growth stages produced varying plant responses. Plants treated during rapid growth stages (e.g. "rapid elongation" and "bud initiation") were more susceptible to ethylene than were plants treated at stages of relatively less rapid growth (e.g. after pinching and after planting). It was suggested that low ethylene levels for prolonged periods could result in serious growth reduction. Ethylene levels in most urban areas are high enough to warrant concern by growers in such areas. Ambient ethylene levels in the Denver Metropolitan area may cause more stem shortening than was previously thought. A grower should consider ambient C2H4 levels before locating his range in an urban area.
Description
Covers not scanned.
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Subject
Carnations
Plants -- Effect of ethylene on