The Selection and Increase of Native Plants for Rehabilitation of Disturbed Wildlands in the Great Basin. Therese Meyer, Jason Vernon, Scott Walker Ephraim Seed Warehouse Ephraim Greenhouse Challenges: • How to develop a few selections that will be suitable for re-vegetation across a huge range of environmental conditions? • How to develop and encourage an industry of seed producers to satisfy the seed needs of all the agencies? Plan of action: • Collect from a wide distribution of sites and species • Test extensively in the greenhouse and lab • Test extensively in the field in a wide variety of environmental conditions • Early release of some unselected lines to growers to work out the agronomic kinks and to establish methods and systems of production Agronomic questions: • How much seed to plant per acre? How deep? • Direct seed or plugs? • When to plant? (Does the species require moist pre-chilling conditions to germinate?) • Irrigation or dry farm? • Pesticides? • Weed control with mechanical or herbicides? • How to harvest? How many harvests per season? • How much seed produced per acre? • Seed pricing in buy-back? • Several of these questions can be partly answered by laboratory and greenhouse experiments. • Some can only be answered by actual field growing of a crop. Forbs: • • • • • Biscuitroot (Lomatium) Tapertip hawksbeard (Crepis) Arrowleaf balsamroot (Balsamorhiza) Cushion buckwheat (Eriogonum) Globemallows (Sphaeralcea) Grasses: • Needle and thread grass (Stipa comata) • Great Basin wildrye (Elymus cinereus) • Bluebunch wheatgrass (Pseudoroegneria spicata) • Muttongrass (Poa fendleri) Seed cleaning: CRAC Soon to be published: Collecting and Cleaning Seed of Intermountain Wildland Shrubs, Forbs and Grasses by Richard Stevens, Scott C.Walker, Jason Vernon, Stanford Young, and E. Durant McArthur Information on collecting, cleaning and handling: • Shrubs– 59 species • Forbs– 40 species • Grasses– 13 species Germination tests: EROV Germination: Moist Chill 100 90 80 70 60 50 40 30 20 10 0 133 days 91 days 55 days 28 days U3-01 U4-01 U5-01 U6-02 U7-02 U8-02 U9-02 U10- U11- U12- U13- U14- U15- U1602 02 02 02 03 03 03 Accession # Globemallow germination study No pretreatment Three min. boil pretreatment Lomatium: germination Physiological studies: Lomatium (Biscuit root) Perideridia (Yampah) 30 days moist chill; no true leaves Perideridia (Yampah) dormant storage organ Lomatium simplex (Ternate lomatium) Only one true leaf ELCI productivity Planting Depth studies: ELCI, CRAC and SPGR Field testing: forbs • Direct seed Wells and Orovada, Nevada, and Nephi, Utah • 10 species, >110 accessions, five repeat blocks per accession HEGE 1000 precision seeder Transplant plugs • Plants from greenhouse to Fountain Green and Ephraim spring of 2005 • Deer exclosure fence planned to enclose ~ 25 acres of the Fountain Green WMA to protect experimental plantings from depredation Plug production: Grower early release program: • 2003: Sphaeralcea seed to Utah growers • 2004: BASA and CRAC to growers in northern Utah, EROV and CLLU to Nevada growers for increase Native Seed for Restoration 2003-2004 • ~50 native species in warehouse: shrubs, grasses, forbs • 28 native plant species out for bid • 14 purchased native plant species • 15 Growers/Collectors • 52,200 pounds of native seed used • ~25,000 acres of ground treated statewide 600,000 lb.capacity Pricing: Wild Collected •Balsamorhiza sagittata – Balsamroot Wildland Collected Seed •Cleome serrulata – Rocky Mtn. Beeplant $140.00 •Penstemon cyananthus – Wasatch $120.00 •Penstemon palmerii – Palmers penstemon Price $/lb. PLS $100.00 •Sphaeralcea coccinea-Common globemallow $80.00 •Vicia americana – American vetch $60.00 •Hedysarum boreale – Sweetvetch $40.00 •Astragalus utahensis – Utah milkvetch •Lupinus argenteus – Silvery lupine $20.00 $0.00 2000 2001 2002 Year 2003 2004 Sphaeralcea grossularifoliaGooseberry-leaf globemallow Sphaeralcea munroana-Munroe globemallow Eriogonum Pricing: Field Produced Agronomically Produced Seed •Helianthus annuus – common sunflower $30.00 •Kochia prostrate –Immigrant Forage Kochia •Linum lewesii – Blue flax, non certified $25.00 Price $/lb. PLS •Achillea millefolium – Western Yarrow $20.00 $15.00 •Medicago sativa – Alfalfa $10.00 •Melilotus officinaleYellow Sweet Clover $5.00 •Onobrychis viciaefolia – Sainfoin $0.00 2000 2001 2002 Year 2003 2004 •Sanguisorba minor – Small Burnet (non Cert)