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Notes: Effects of Artificial Defoliation on the Growth of Cork Oak

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In Sardinia a single artificial removal of 50 percent or 100 percent of the foliage from Quercus suber L. trees in June caused serious growth losses. The weight of new leaves diminished significantly. Shoot growth and cambial growth were seriously reduced both in the year of treatment and in the following year. Ring width of the cork was greatly reduced in the year of treatment, but recovery was almost complete the following year. The decrease in xylem ring width reduced the generating area of the cork. The reduction in ring width of the cork and generating area resulted in a decline in cork production. Forest Sci. 16:364-366.

Keywords: Porthetria dispar; Quercus suber; bark

Document Type: News

Affiliations: Plant Anatomist, Stazione Sperimentale del Sughero, 07029 Tempio Pausania (Sassari), Italy

Publication date: September 1, 1970

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
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