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Notes: Effect of Desiccation, Temperature, and Moisture Content on Seed Storage of Three Tropical Tree Species

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Abstract:

We studied the viability of seeds of Hyeronima alchorneoides Fr. Allemao, Virola koschnyi Warb. and Vochysia guatemalensis D. Smith in relation to desiccation, seed moisture content, and storage temperature. Seed was either desiccated in chambers with activated silica gel or using air passed through columns of activated silica gel. Two seed moisture contents were achieved: 25-30% and 6-8%. Desiccated seeds were stored at either room temperature (25±1°C ) or in a cold room (4±1°C). Seeds of V. koschnyi and V. guatemalensis did not tolerate the loss of moisture and lost their viability completely. The seeds of H. alchorneoides tolerated desiccation treatments without significant loss of viability. A combination of low temperatures (4±1°C) and low seed moisture content (6-8%) allowed seeds to be stored for 6 mo. However, mean germination was reduced by storage. We also attempted to inhibit the germination of V. guatemalensis by treatment with five concentrations of abscisic acid: 10-4, 10-6, 10-10, 10-15, and 10-20 M. Abscisic acid failed to stop the germination of fresh seeds at any concentration tested. For. Sci. 43(4):595-601.

Keywords: Hyeronima alchorneoides; Virola koschnyi; Vochysia guatemalensis; abscisic acid; recalcitrant seeds

Document Type: Miscellaneous

Affiliations: Department of Forest Science, Texas A&M University, College station, Texas 77843-2135; Phone: 409-845-5095;, Fax: 409-845-6049

Publication date: 1997-11-01

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 Impact Factor: 1.702
    Ranking: 16 of 66 in forestry

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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