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ARS Home » Pacific West Area » Logan, Utah » Forage and Range Research » Research » Publications at this Location » Publication #327263

Research Project: Develop Improved Plant Genetic Resources to Enhance Pasture and Rangeland Productivity in the Semiarid Regions of the Western U.S.

Location: Forage and Range Research

Title: Dalea ornata and Astragalus filipes seeding successes and failures

Author
item STETTLER, J - Oregon State University
item Bushman, Shaun
item HORNING, MATT - Oregon State University
item SHOCK, CLINTON - Oregon State University
item FEIBERT, ERIK - Oregon State University
item Connors, Kevin
item Johnson, Douglas

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 4/4/2016
Publication Date: 4/11/2016
Citation: Stettler, J., Bushman, B.S., Horning, M., Shock, C., Feibert, E., Connors, K.J., Johnson, D.A. 2016. Dalea ornata and Astragalus filipes seeding successes and failures. Meeting Abstract.

Interpretive Summary:

Technical Abstract: We have previously collected, evaluated, and released germplasm of Dalea ornata and Astragalus filipes. We also determined the optimal seed scarification techniques, planting depths, and soil types for seedling emergence. However, these results are just a couple of steps in the path to their utilization in revegetation. In this study we planted the two species in three dryland sites in Oregon, and tested if fall and spring planting leads to higher seedling emergence rates. We found that for Astragalus filipes fall plantings are generally more successul while early spring plantings were more successful for Dalea ornata. During dry years, neither plant germinated. Even when climates were more suitable and many plants germinated and emerged from the soil, summer aridity thinned the stands to just a few plants per row.