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Notes: Twins and Triplets of American Elm

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Multiple seedlings occurred at frequencies ranging from .05 to 0.4 per thousand seeds from wind-pollinated elm street trees. Unequal vigor was common between siblings and less vigorous seedlings usually died after initial expansion of the first true-leaf pair. All multiple seedlings were tetraploid. Forest Sci. 20:142.

Keywords: Ulmus americana; cytogenetics; polyembryony

Document Type: Miscellaneous

Affiliations: Former Graduate Research Assistant, Dept. of Forestry, Univ. of Wisconsin, Madison

Publication date: June 1, 1974

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.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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