You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Germination and Seedling Development of Fringed Sagebrush (Artemisia frigida)
Robert G. Wilson, Jr.
Vol. 30, No. 1 (Jan., 1982), pp. 102-105
Stable URL: http://www.jstor.org/stable/4043228
Page Count: 4
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
Optimum germination of fringed sagebrush (Artemisia frigida Willd.) occurred at alternating temperatures of 10 to 20 C. Seeds were able to germinate (15%) in NaCl concentrations of 5000 ppmw. Light was important in seed germination; however, its absence could be overcome by adding 30 ppmw GA₃ (gibberellic acid) to the germination medium. Optimum pH for germination was between 5.8 and 7.0. Depth of planting influenced seedling emergence; the greatest emergence occurred when seeds were planted on the soil surface; emergence was lower when seeds were buried at any depth in the soil. Osmotic potentials of -13 bars and greater reduced germination, but 6% of the seeds germinated at -15 bars. Fringed sagebrush seedlings tolerated average plant water potentials of -10 to -19 bars and died when water potentials were decreased to -22 bars. Mature fringed sagebrush plants were capable of producing from 16500 to 190000 seeds/plant.
Weed Science © 1982 Weed Science Society of America