Differential Susceptibility to Fusarium Stub Dieback in Carnation Cultivars1
Open Access
- 1 November 1976
- journal article
- Published by American Society for Horticultural Science in Journal of the American Society for Horticultural Science
- Vol. 101 (6) , 654-657
- https://doi.org/10.21273/jashs.101.6.654
Abstract
Sixty-three cultivars of carnation (Dianthus cary ophyllus L.) including 42 Sim types, 9 non-Sim standards and 12 miniature types, were tested for susceptibility to Fusarium stub dieback caused by Gibberella zeae (Schw.) Petch. All cultivars were assigned a numerical rating by comparing infection rates to ‘Improved White Sim’ (IWS) used as a standard assigned rating of 1.00. Sixteen cultivars had ratings significantly lower than IWS and 3 significantly higher. The range of the ratings was from 0.20 for ‘Maj Britt’ to 2.61 for ‘Orchid Beauty’. The range for Sim types was from 0.25 for ‘Yellow dusty’ to 1.67 for ‘California White’. It is suggested that sufficient variation exists in commercial cultivars for selection for resistance to Fusarium stub dieback.Keywords
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