Forage & Range Research Laboratory Logan, UT. Review Progress in … Bluebunch wheatgrass Snake...

Forage & Range Research Laboratory

Logan, UT

Review Progress in …

Bluebunch wheatgrass

Snake River wheatgrass

Indian ricegrass

Squirreltail

Basin wildrye

Bluebunch wheatgrass

Releases

GoldarWhitmar

Anatone

P-7 (MOPX)

P-7

bluebunch wheatgrass germplasm

G-2 seed field

IFAFS Trials

two sites each in UT, NV, ID, OR

with and without Roundup

(total of 16 comparisons)

measurement:

seedling density in late June/early July of

establishment year

Anatone 1.67 a 0.55 a

P-7 1.01 b 0.48 a

Goldar 0.23 c 0.16 a

with without

Roundup Roundup

Current Seed Prices

bluebunch wheatgrass

Anatone

$5.00 per PLS #

P-7

$2.00 per PLS #

Anticipated Releases

2005

Columbia

Bluebunch Wheatgrass

Anticipated Release

2006

Large-seeded

bluebunch wheatgrass(from chromsome doubling)

seeds 51% heavier than P-7

P-7 P-27

selection for regrowth from clipping

P-5

Bluebunch Wheatgrass

Snake River wheatgrass

Releases

‘Secar’Expedition

Anticipated Releases

2005

Expedition

Snake River Wheatgrass

Anticipated Release

2006

Anticipated Releases

2005

Expedition

Snake River Wheatgrass

two locations:

Blue Creek, Box Elder County, UT Green Canyon, Cache County, UT

better seedling establishment through drought compared to ‘Secar’

year 2 stand frequency of 49% compared to 27% for Secar

years 2-4 forage yield 97% greater than Secar

Anticipated Releases

2005

Expedition

Snake River Wheatgrass

Greenhouse seedling drought-tolerance study

in response to drought stress …

shoot biomass of Expedition declined 24%

shoot biomass of Secar declined 33%

in response to drought stress …

root-to-shoot ratio of Expedition increased 33%

root-to-shoot ratio of Secar increased 7%

Indian ricegrass

Releases

Star Lake

‘Nezpar’

‘Rimrock’

‘Paloma’

White River

Seed Mass

8.62 mg 3.37 mg 2.33 mg

Lemma Thickness

180 µm 93 µm 52 µm

Germination

negligible 20% 66%

Jumbo Globose Elongate(Star Lake)

Anticipated Release

2005

NRCS Trial at Pinedale, WY

White River Germplasm Indian ricegrass

highly germinable material for the Upper Colorado/Green

River Plateau

Anticipated Release

2005

highest seed yield of 25 accessions

second highest germination of 59 accessions

Anticipated Release

2005

White River Germplasm Indian ricegrass

stand superior to Nezpar (4 of 6 years) and Rimrock (3 of 6 years)

NRCS Trial at Pinedale, WY

vigor superior to Nezpar (3 of 6 years) and Rimrock (2 of 6 years)

vigor inferior to Nezpar and Rimrock (1 of 6 years)

biomass superior to Nezpar and Rimrock (1 of 3 years)

Sand Hollow(multisetus)

Toe Jam Creek(californicus)

Fish Creek(elymoides)

Squirreltail Releases

Tusas(brevifolius)

Sand Hollow Germplasm

big squirreltail

(Elymus multisetus)

Toe Jam Creek (E. elymoides

ssp. californicus)

Fish Creek (E. elymoides ssp. elymoides)

Bottlebrush Squirreltail germplasms

Fish Creek

Toe Jam Creek

(E. elymoides ssp. elymoides)

(E. elymoides ssp. californicus)

Fish Creek

Toe Jam Creek

(E. elymoides ssp. elymoides)

(E. elymoides ssp. californicus)

E. elymoides ssp. elymoides

Mountain Home

Fish Creek

Washoe Germplasm

Basin wildrye Releases

‘Trailhead’

‘Magnar’

Anticipated Releases

2005

Continental

Basin Wildrye

Magnar (2n=56)

X

L-28 (2n=56)

Trailhead (2n=56)

Trailhead (2n=28)

colchicine-doubling

continued cycles of selection

ContinentalLarge-seeded basin wildrye

under development

seeds 34% heavier than Acc:636

Acc:636 L-45

Anticipated Releases

2004