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Germination and Seedling Development of Fringed Sagebrush (Artemisia frigida)

Published online by Cambridge University Press:  12 June 2017

Robert G. Wilson Jr.
Robert G. Wilson Jr.*
Affiliation:
Dep. Agron., Univ. of Nebraska, Scottsbluff, NE 69361
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Abstract

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.

Keywords

Plant growth regulatorsmoisture stresssalinitytemperature
Type
Research Article
Information
Weed Science , Volume 30 , Issue 1 , January 1982 , pp. 102 - 105
Copyright
Copyright © 1982 by the Weed Science Society of America 

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References

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