establishment and seed production of native forbs used for restoration jessica wiese montana state...
Post on 19-Dec-2015
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TRANSCRIPT
- Slide 1
- Establishment and Seed Production of Native Forbs Used for Restoration Jessica Wiese Montana State University Fabian Menalled, Bruce Maxwell, James Jacobs, Susan Winslow
- Slide 2
- Why wildflower management? High value crop with very specific management - $40-250 per lb, depending on species Importance of ecological diversity - Seed mixes typically grasses - Open niche - Ecological services of diversity
- Slide 3
- High demand for restoration and seed production National Parks and severely disturbed sites
- Slide 4
- RestorationProduction
- Slide 5
- Factors affecting establishment Seed viability Seed germination Source of seed Weed competition Herbicide response
- Slide 6
- Objectives Compare effects of pre- and post-emergence herbicides on wildflower seedling establishment, injury, and seed production Evaluate effects of each herbicide on weed control Assess the economics of weed management
- Slide 7
- Components greenhouse post pre field
- Slide 8
- Wildflower species: 5 wildflower species: Dalea candida Gaillardia aristata Phacelia hastata Penstemon eriantherus Ratibida columnifera White prairieclover Blanketflower Silverleaf phacelia Fuzzytongue penstemon Prairie Coneflower
- Slide 9
- Greenhouse herbicide screening Identify pre- and post-emergent herbicides that do not cause seedling damage
- Slide 10
- Pre-emergence screening 5 soil applied pre-emergent herbicide Dacthal WP (DCPA), Spartan (sulfentrazone), Aatrex (atrazine), Surflan (oryzalin), Treflan, (trifluralin) Randomized split-plot with four replications Living seedlings per row, leaves formed per seedling, height, dry weight
- Slide 11
- Pre emergence results P