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Seiridium cardinale cankers in a tolerant Cupressus sempervirens clone under naturally CO2-enriched conditions

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Ramets of the clone Bolgheri were raised in three CO concentrations in a naturally CO-enriched environment [360 (control), 680 and 1670 mol mol CO]. Bolgheri is patented as resistant to . The ramets were artificially inoculated using a virulent isolate of . Healing of the resulting cankers was visually assessed over 6 years. Six months after inoculation, cankers on trees grown at 680 mol mol were significantly larger than the controls. However, no significant trend was recorded at later dates. In conclusion, the Bolgheri clone maintained its resistance to and could be used to control cypress canker even in increasing atmospheric CO concentrations.

Le chancre à Seiridium cardinale chez un clone tolérant de Cupressus sempervirens en conditions naturellement enrichies en CO2

Des ramets du clone Bolgheri de Cupressus sempervirens ont étéélevés sous trois concentrations de CO2 en conditions naturelles (360 (témoins), 680 et 1670 μmol mol–1 de CO2). Bolgheri est certifié comme résistant au Seiridium cardinale. Les ramets ont été inoculés artificiellement avec un isolat virulent de S. cardinale. La cicatrisation des chancres induits a été suivie visuellement pendant six ans. Six mois après l’inoculation, les chancres sous 680 μmol mol−1étaient significativement plus grands que chez les témoins, mais aucune tendance significative n’a été notée plus tard. Le clone Bolgheri maintient donc sa résistance àS. cardinale et peut être utilisé même sous des concentrations croissantes de CO2 atmosphérique.

Document Type: Research Article

Affiliations: Istituto Patologia Alberi Forestali – CNR, Piazzale delle Cascine 28, I-50144 Firenze Italy; Email:, Email:

Publication date: October 1, 2001


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