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Sweetgum Seed Stratification Requirements Related to Winter Climate at Seed Source

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After 0 to 32 days of stratification, sweetgum (Liquidambar styraciflua L.) seeds from 3 stands near the mouth of the Mississippi River germinated faster than seeds from 15 stands farther north in Mississippi, Alabama, and Louisiana. There was evidence of a clinal response in rate of germination, in which an increase of 10 days with winter temperatures ≤ 0° C at the seed source was associated with an additional 1 1/2 days to attain 90 percent of total germination.

Document Type: Journal Article

Affiliations: Plant Geneticist, Agric. Research Service, Lafayette, Ind.

Publication date: 1968-03-01

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  • 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 Impact Factor: 1.702
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    June 1, 2016 to Feb. 28, 2017

    Also published by SAF:
    Journal of Forestry
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