Rocky Mountain Research Station Publications
RMRS Online Publication - Journal
Articles, External Publications, and Special Reports
An evaluation of seed scarification methods of four native Lupinus species
Jones, C. D.; Jensen, S. L.; Stevens, M. R. 2010. An evaluation of seed scarification methods of four native Lupinus species. In: Pendleton, Rosemary; Meyer, Susan; Schultz, Bitsy, eds. Conference Proceedings: Seed Ecology III - The Third International Society for Seed Science Meeting on Seeds and the Environment - "Seeds and Change"; June 20-June 24, 2010; Salt Lake City, Utah, USA. Albuquerque, NM: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 74-75.
Seed dormancy is a survival strategy that better ensures the persistence of a species. Dormancy is characterized as exogenous if caused by factors outside the embryo or endogenous if caused by factors within the embryo. Exogenous dormancy is further characterized as physical, mechanical or chemical, while endogenous dormancy may be physiological or morphological. Combinations of these factors may be responsible for dormancy in some species (Jones and Nielson, 1992). Some lupines exhibit physical dormancy. The integrity of the physical barrier varies by species, accession and year. It has been demonstrated that dormancy in lupines is also affected by relative humidity at the time the seed reaches maturity (Quinlivan 1970). Highly dormant seed lots require scarification to assure acceptable germination rates when planted. We tested chemical, mechanical, and thermal scarification treatments to discover which was most predictable and yielded the highest germination.
Keywords: seed scarification, seed dormancy, Lupinus species
About PDFs: For best results, do not open the PDF in your Web browser. Right-click on the PDF link to download the PDF file directly to your computer. Click here for more PDF help.
PDF File Size: 180 K
Title: RMRS Other
Publications: An evaluation of seed scarification methods of four
native Lupinus species
Electronic Publish Date: December 1, 2010
Last Update: December 1, 2010
RMRS Publications | Order a publication | Contact Us