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Field and Laboratory Investigations of Seed Dormancy in Red Maple (Acer Rubrum L.) from the North Carolina Piedmont

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Abstract:

Field and laboratory investigations were conducted using seeds collected from red maple populations located in the North Carolina piedmont to determine: (1) the percentage of red maple seedling establishment each spring that can be attributed to dormant seeds, (2) the percentage of seeds that display dormancy upon dispersal, (3) the effect of short periods of dry conditions at 20-22°C on dormancy and seed viability. The greenhouse results indicated that red maple from these populations display moderate levels of seed dormancy (14%) when provided with conditions conducive to germination immediately upon dispersal. However, in the field, the majority of red maple seedlings that established in both 1988 (59%) and 1989 (nearly 100%) emerged from dormant seeds. The dry delay treatment led to significant increases in seed dormancy and decreases in seed viability, which suggest that some seed dormancy in red maple may be acquired rather than innate. Maternal families showed significant variation in levels of seed dormancy, and the effects of the dry delay treatment on seed viability also varied among maternal families. For. Sci. 41(2):378-386.

Keywords: Seed viability; genetic variation

Document Type: Journal Article

Affiliations: Department of Botany, Duke University, Durham, NC 27706. (Curent Address: Biology Department, Davidson College, Davidson, NC 28036.)

Publication date: 1995-05-01

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.

    2015 2016 Impact Factor: 1.782 (Rank 17/64 in forestry)

    Average time from submission to first decision: 62.5 days*
    June 1, 2016 to Feb. 28, 2017

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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