Development of Native Seed Supplies to E. Durant McArthur

advertisement

This file was created by scanning the printed publication.

Errors identified by the software have been corrected; however, some errors may remain.

Development of Native Seed Supplies to

Support Restoration of Pinyon-Juniper Sites

E. Durant McArthur

Stanford A. Young

Abstract-Use of native plants for restoration and rehabilitation of disturbed or manipulated pinyon-juniper communities is increasing in response to desires ofland managers and society in general.

Seeds of native plants are becoming more available, but estimates and surveys show there is still more demand than available supply.

Field grown seeds and warehousing do anticipate demand but are only partial solutions to the native plant seed shortage. Exotic, developed plant materials, especially Triticeae grasses and legumes, remain important resources for rehabilitation plantings.

Private industry seed collectors, growers, and developers will be responsive to plant materials needs ofland managers. Seed genetic identity and quality can be better assured through the seed certification process whether the seed is wildland collected or field grown.

After pinyon -j uni per si tes have been disturbed or depleted by natural or managed events such as prescribed or wildfire, chaining, or chopping, the rehabilitation and restoration of those sites often requires seeding. Seed for this purpose has traditionally been obtained by harvesting seed from native stands and from cultivated fields of mostly non-native plants

(McArthur 1988; Meyer and Kitchen 1995; Monsen 1987;

Plummer and others 1968; Roundy 1996). Seed suppliers, whether they be wildland seed collectors or those who grow various classes of non-selected common or developed plant germplasms, seek to respond to market needs (Plummer

1984; Young and others 1995).

Traditional objectives for pinyon-juniper rehabilitation were to provide stability to soils, and forage and cover for livestock and big game anima:ls (Plummer and others 1968;

Roundy 1996). The most important criteria for use of particular plant materials was their site adaptability and the resource values that they provided (Monsen and McArthur

1995). The early success in pinyon-juniper rehabilitation and conversion projects as well as other rangeland rehabilitation efforts were highlighted by the performance of exotic grasses, especially members of the Triticeae (wheatgrasses and their relatives), and legumes (rangeland alfalfas and clovers) (Asay and Knowles 1985a,b; Barnes and Sheaffer

1985; McArthur 1988; Plummer and others 1968; Roundy

1996; Rumbaugh and Townsend 1985;). Triticeae grasses and legumes remain the plants of greatest availability and primary choice for most pinyon-juniper rehabilitation

In: Monsen, Stephen B.; Stevens, Richard, comps. 1999. Proceedings: ecology and management of pinyon-juniper communities within the Interior

West; 1997 September 15-18; Provo, UT. Proc. RMRS-P-9. Ogden, UT: U.S.

Department of Agriculture, Forest Service, Rocky Mountain Research

Station.

E. Durant McArthur is Project Leaderwith the Shrub Sciences Laboratory,

Rocky Mountain Research Station, Forest Service, U.S. Department of

Agriculture, Provo, UT 84606-1856. Stanford A. Young is Secretary-Manager of the Utah Crop Improvement Association, Utah State University, Logan,

UT 84322-4855. plantings. However, more and more native plant materials

(grasses, forbs, and shrubs) are becoming available (Carlson and McArthur 1985; McArthur 1988; Meyer and Kitchen

1995; Monsen 1987; Monsen and Stevens in press; Young and others 1995;).

In recent years there has been increasing interest in reconstructing natural plant communities and using siteindigenous and other regionally native plant materials (Allen and others 1997; Jordan and others 1987; Richards and others 1998; Roundy and others 1995). Governmental land management agencies (such as the U.S. Department of

Agriculture, Forest Service; U.S. Department ofthe Interior,

Bureau of Land Management; Utah Department of Natural

Resources, Divison of Wildlife Resources) have instituted policies to require, or at least encourage, the use of native plant materials in rehabilitation plantings (Richards and others 1998; Richard Stevens personal communication).

The practice of restructuring or recreating natural, preexisting plant communities has been termed "restoration"

(Allen 1995; Jordan and others 1987). Rehabilitation implies a renewal of land productivity but a change in the ecosystem structure (Allen 1995). This paper reviews the status ofthe native plant seed industry in wildland rehabilitation and restoration. While we emphasize pinyon-juniper lands, our somewhat broader discussion incl udes other wildland plant community types.

Materials and Methods

We present survey information from the reclamation seed industry in two different formats. One of us (SAY) compiled a summary of market information for selected reclamation species emphasizing native plants and other conservation plant materials for presentation at the 1997 Utah Native

Plant Forum. Data included current use, potential use, amount available as wildland collected seed, and price information for the Intermountain and Pacific Northwest

Regions (Utah, Nevada, Idaho, Montana, Oregon, Washington). In this report we have included and updated much of that information.

The second source is a survey conducted by our colleague

Richard Stevens of the Utah Division of Wildlife Resources, also for the 1997 Utah Native Plant Forum. This survey reported the volume of native seed sold in 1996 by five Utah seed companies. The volume of seed is given to indicate a trend and not meant to be definitive, although Stevens

(personal communication) estimates these companies account for at least halfofthe native seed volume by Utah seed companies. The seed sold by these Utah seed companies was collected and sold both in and out of Utah.

USDA Forest Service Proceedings RMRS-P-9. 1999 327

Results and Discussion

Market information estimates for 47 species from the

Intermountain and Pacific Northwest regions show that potential use of these species-nearly 2.5 million lb pure live seed (pls)-far outstrips the current use (approximately

750,000 lb pIs) and the volume available from harvest of wildland stands (approximately 370,000 pounds pIs) (table 1).

This information demonstrates that there is not enough seed collected nor available to be collected from wildlands to meet current demand, let alone potential usage, and that currently much of the demand is met from field-grown seed. The supply of native wildland-collected seed varies widely from year to year depending upon growing and collecting conditions, mainly weather. There is apparently a market for increasing field-grown seed for many species (table 2). The seed price estimates in table 1 emphasize this. Seed available from wildlands has higher val ue than current use val ue even though the volume of seed on wildlands is less than current use volume. This is because some high value wildland seed remains uncollected (table 2).

The five Utah seed companies that were surveyed sold a total of more than 500,000 lb of native seed in 1996 including more than 300,000 lb of shrub seed, nearly 200,000 lb of grass seed, and 35,000 lb of forb seed (table 3). Many of the species sold were the same as those in the Intermountain and Pacific Northwest area survey (table 2), but many additional species are also listed. The Utah seed companies sold seed of29 native grasses, 39 native forbs, and 42 native shrubs (table 3).

We believe the increasing demand for native species for restoration and rehabilitation plantings can be best met w hen the principal users stockpile seed so seed will be available when needed, whether that need is generated by a planned site rehabilitation or restoration or an emergency situation such as wildfire rehabilitation. Two successful examples of seed stockpiling are the Utah Division of Wildlife Resources Seed Warehouse in Ephraim and the Bureau of Land Management Seed Warehouse in Boise, ID. These warehouses maintain large s~ed inventories (more than

200,000 lb) and a rich array of species. The Utah Division of

Wildlife Resources has stockpiled native seed in its warehouse operation for more than 40 years. These seed resources have been used not only on Divison and other State lands, but on Federal and private lands as well. The Boise

Bureau of Land Management seed warehouse has been servicing public land needs in Idaho and other Western

Table 1-Market information estimates for 47 selected reclamation species a

.

Factor

Current use

Potential use

Available for wildland collection

Pure live seed

(Ib/yr)

Dollar value

765,873 2,460,450 370,212

$3,232,749 $12,232,250 $3,261,417 aSummary of data from table 2. Financial values determined as mid-point values for use, availability, and price to grower (table 2).

States since 1991. The National Forests in Utah are considering establishing a native seed warehouse.

We believe these public sector warehouses are needed for timely response to rehabilitation and restoration needs on public lands. Furthermore, we suggest that orderly stockpiling would greatly encourage consistent production from private sector seed collectors and growers who will continue to supply most of the seeds for publicly owned warehouses.

We antici pate that private warehousing of seed will con tin ue to serve as an adjunct to public warehousing.

As natural resource managers' objectives turn increasingly toward the maintenance and restoration ofthe genetic and ecological integrity of native ecosystems, native plant use will also increase. In response to this trend, more native plant materials are becoming available (tables 1-3). However, ecosystem function and service are also important. In some places, such as drastically disturbed sites, the genetic and ecological robustness of developed, available, and sometimes exotic plants may be needed. Plant germplasm collectors and developers and the seed industry will respond to land managers' needs in both restoration and general rehabilitation arenas if those needs are viewed as consistent market commitments.

Seed genetic identity and quality can best be assured if the seed is inspected and certified following the requirements and standards of the Association of Official Seed Certifying

Agencies (AOSCA), whether the seed is wildland collected or field grown (Young 1995; Young and others 1995). Ifthe seed is tagged by an official seed certifying agency, the buyer can have confidence about the seed quality (mechanical purity, germination, foreign material), source or site of origin (genetic purity and identity), and ecotypic or developed status of the seed lot.

Acknowledgments

We thank Richard Stevens and Steve Monsen for encouragement in preparation ofthis manuscript, Richard Stevens for sharing his survey data with us, and Ron Stevenson

(Stevenson Intermountain Seed Company) for assistance in compiling market data. We also thank Jeanne Chambers,

Stan Kitchen, and Richard Stevens for reviews and comment on an earlier version of this manuscript.

References

---------------------------------

Allen, E. B. 1995. Restoration ecology: limits and possibilities in arid and semiarid land. In: Roundy, B. A.; McArthur, E. D.; Haley,

J. S.; Mann, D. K, comps. Proceedings: wildland shrub and arid land restoration symposium; 1993 October 19-21; Las Vegas, NV.

Ogden, UT: Gen. Tech. Rep. INT-GTR-315. U.S. Department of

Agriculture, Forest Service, Intermountain Research Station: 7-15.

Allen, E. B.; Covington, W. W.; Falk, D. A. 1997. Developing the conceptual basis for restoration ecology. Restoration Ecology

5: 275-276.

Asay, K H.; Knowles, B. P. 1985a. Current status and future of introduced wheatgrasses and wildrye for rangeland improvement. In: Carlson, J. R; McArthur, E. D., eds. Symposium: range plant improvement. 1985 February 11-15; Salt Lake City, UT.

Denver, CO: Proceedings, selected papers presented at the 38 th

Annual Meeting of the Society for Range Management: 109-116.

Asay, K H.; Knowles, R. P. 1985b. The wheatgrasses. In: Heath, M.

E.; Barnes, R. F.; Metcalf, D. S., eds. Forages, the science of grassland agriculture,

4th edition. Ames, IA: Iowa State University Press: 166-176.

328 USDA Forest Service Proceedings RMRS-P-9. 1999

Table 2-Market information estimates for Intermountain and Pacific Northwest regions for 47 selected reclamation species, in pounds of pure live seed (pis).

Species 8 Current Use Potential use

Avaliable wildland collected

- - - - - - - - - - - - - - - - - - - - - - - pIs Iblyr - - - - - - - - - - - - - - - - - - - - - - -

Species ~ 10,000 Ib/yr

Small burnet C ,9

Blue flax d ,9

Western yarrow d

Antelope bitterbrush

Forage kochiac

,9

Wyoming big sagebrushe,f,9

Fourwing saltbush 9

Bottlebrush squirreltail

Western wheatgrass9

Bluebunch wheatgrass9

Thickspike wheatgrass 9

Basin wildrye9

Indian ricegrass9

Stream bank wheatgrass9

Mountain brome 9

Meadow brome 9

Slender wheatgrass 9

Species 1,000-9,999 Ib pls/yr

Arrowleaf balsamroot

Rocky Mountain Beeplant

Palmer penstemon9

Rocky Mountain penstemon9

Common sunflower

Sweet anise

White-stemmed rubber rabbitbrushe,f

Basin big sagebrushe,f

Mountain big sagebrush e,f,9

Winterfat9

Sandberg bluegrass

Needle-and-thread grass

Species 100-999 Ib pls/yr

Blueleaf astere

Pacific astere

Sulfur flower buckwheat

Wyeth buckwheat

Gooseberry-leaf globemallow

Scarlet globemallow 9

Munroe globemallow 9

Showy goldeneye

Firecracker penstemon

Wasatch penstemon

Louisana sagewort

Oyster-plant salsifyc

Utah sweetvetch 9

Species < 100 Ib/yr

Gland cinquefoil

Canada goldenrod

Butterweed groundsel

Nuttallomatium

Thurber needlegrass

50,000-200,000

20,000-40,000

10,000-30,000

5,000-20,000

25,000-40,000

4,000-20,000

40,000-BO,000

10,000-15,000

BO,000-100,000

-20,000-50,000

20,000-30,000

25,000-50,000

20,000-40,000

20,000-30,000

30,000-100,000

20,000-50,000

50,000-100,000

500-1,500

500-2,500

2,500-5,000

3,000-B,000

2,000-5,000

500-2,500

1,500-2,500

1,500-3,000

2,000-5,000

5,000-10,000

200-2,000

500-10,000

200-500

50-200

100-200

100-200

500-1,000

200-400

300-1,000

500-1,000

100-500

200-1,000

100-400

100-250

500-1,000

20-50

25-75

10-50

25-100

25-100

300,000

100,000

35,000-45,000

35,000-45,000

100,000

25,000

100,000

50,000-200,000

200,000

75,000-300,000

50,000

75,000-100,000

50,000 100,000

50,000

300,000

100,000-200,000

250,000-300,000

2,500-3,500

3,000-5,000

5,000-10,000

B,000-10,000

10,000

2,500-5,000

2,500

3,000

6,000

20,000

25,000-100,000

50,000-70,000

500-2,500

500-2,500

500-2,500

500-5,000

2,000-4,000

1,000-1,500

1,000-2,000

1,000-2,000

1,500-2,000

1,500-2,000

500-2,500

500-1,500

5,000-B,000

200-1,000

500-2,500

200-2,000

500-2,500

10,000-50,000

0

0

1,000-2,000

5,000-30,000

40,000-60,000

35,000

100,000

15,000

20,000-50,000

5,000

5,000

10,000-15,000

5,000-20,000

0

5,000

0

1,000

500-2,000

3,000-5,000

1,500-2,500

1,000-1,500

10,000

2,500-5,000

2,500

10,000

10,000

5,000-15,000

3,000

1,000-15,000

200-500

50-200

300-500

400-500

200-1,000

50-1,000

200-1,000

200-500

100-200

100-500

200-400

500-1,500

500-1,000

100-500

25-300

10-100

50-200

3,000 aSpecies are divided into classes based on current use. bVendor price is some percentage above these figures, reflecting condition, warehousing, and other overhead costs and market conditions.

CExotic or naturalized species. dCircumboreal species. eSeed is typically marketed at about 10 to 15 percent purity.

'Subspecies.

9Species or subspecies has released varieties and/or germplasm.

Price to grower or collector b

$Ip/s lIb

B.00-9.00

B.OO- 9.00

9.00-12.00

12.00-15.00

3.00

5.00-7.00

15.00

10.00-20.00

15.00-30.00

6.00-12.00

B.00-12.00

16.00-20.00

25.00

25.00

25.00

14.00

10.00-20.00

0.40

2.25-5.00

5.00-7.50

5.00-8.00

7.00-12.00

15.00-35.00

2.50-6.00

B.00-12.00

2.50-6.00

2.00-5.00

2.00-4.00

3.00-7.00

2.00-5.00

1.60-5.00

1.00-2.00

1.50-2.50

1.50-2.50

35.00-50.00

35,00-50.00

25.00

20.00

25.00

25.00-35.00

25.00

20.00

30.00-40.00

15.00

20.00-22.00

25.00

20.00-25.00

USDA Forest Service Proceedings RMRS-P-9. 1999

329

Table 3-Pounds of native seed sold in 1996 by five Utah seed companies.

Grass species

Thickspike wheatgrass

Western wheatgrass

Basin wildrye

Mountain brome

Snake River wheatgrass

Slender wheatgrass

Streambank wheatgrass

Indian ricegrass

Sheep fescue

Bluebunch wheatgrass

Bottlebrush squirretail

Green needlegrass

Sherman big bluegrass

Sideoats grama

Alkali sacaton

14 others a

(10-1,202)

Pounds of seed

27,305

23,616

22,522

19,202

15,000

14,400

11,850

11,555

9,950

9,552

7,865

2,865

2,500

2,000

2,000

6,324

Forb species

Western yarrow

Common sunflower

Blue flax

Rocky Mountain bee plant

Lupine (several species)

Palmer penstemon

Pounds of seed

8,443

5,900

3,965

3,200

2,686

2,010

California poppy

Desert globe mallow

Arrowleaf balsamroot

Utah sweetvetch

Showy goldeneye

Munro globemallow

Rocky Mountain Penstemon

Sweet anise

25 others b

(2 - 410)

2,000

900

625

597

530

500

500

490

3,081

Shrub species

Wyoming big sagebrush c

Fourwing saltbush

Mountain big sagebrush c

Basin big sagebrush c

Shad scale saltbush

White-stemmed rubber rabbitbrush c

Antelope bitterbrush

Winterfat

Mountain rubber rabbitbrush c

Gardner saltbush

Douglas rabbitbrush

Woods rose

Skunkbush sumac

Green ephedra

Low rabbitbrush

Nevada ephedra

26 others d

(10- 955)

Pounds of seed (bulk)

120,000

76,350

22,522

20,230

14,250

11,765

6,047

5,445

5,350

4,200

2,200

2,200

1,820

1,605

1,600

1,255

10,229

Total

Grand Total

188,506 35,427 307,068

531,001 aSandberg bluegrass, sand dropseed, Idaho fescue, meadow foxtail, galleta, blue grama, tufted hairgrass, prairie June grass, needle-and thread grass, Letterman needlegrass, redtop, purple three-awn, alpine timothy, beardless wildrye. bSlueleaf aster, Engleman aster, pacific aster, cutleaf balsam root, columbine, cow parsnip, erigeron species, eriogonum species, farewell-to-spring, gaillardia, sticky geranium, gilia, gooseberryleaf globe mallow, one-flower helianthella, Porter ligusticum, Louisiana sagewort, desert marigold, mules ear wyethia, Indian paintbrush, firecracker penstemon, Rydberg penstemon, thickleaf penstemon, Wasatch penstemon, Iseland poppy. cSubspecies. dOesert bitterbrush, roundleaf buffaloberry silver buffaloberry, chokecherry, Stansbury cliffrose, golden current, wax current, redosier dogwood, blue elderberry, red elderberry, Wyeth eriogonum, black greasewood, spiny hopsage, curlleaf mountain mahogany, true mountain mahogany, black sagebrush, silver sagebrush, fringed sage, sand sage, quail saltbush, mat saltbush, Saskatoon serviceberry, Utah serviceberry, mountain snowberry, Rocky Mountain sumac.

Barnes, D. K; Sheaffer, C. C.1985. Alfalfa. In: Heath, M. E.; Barnes,

R F.; Metcalf, D. S., eds. Forages, the science of grassland agriculture, 4th edition. Ames, IA: Iowa State University Press:

89-97.

Carlson, J. R; McArthur, E. D., eds. 1985. Symposium: range plant improvement. In: Proceedings, selected papers presented at the

38th Annual Meeting of the Society for Range Management 1985

February 11-15; Salt Lake City, UT. Denver, CO: Society for

Range Management: 107-220.

Jordan, W. R, III.; Gilpin, M. E.; Aber, J. D., eds. 1987. Restoration ecology, a synthetic approach to ecological research. Cambridge,

UK: Cambridge University Press. 342 p.

McArthur, E. D. 1988. New plant development for range management. In: Tueller, P. T., ed. Vegetation science applications for rangeland analysis and management. Dordrecht, Netherlands:

Kluwer Academic Publishers: 81-112.

Meyer, S. E.; Kitchen, S. G. 1995. First the seed: a restorationist's perspective. Hortus Northwest 6 (2): 4-8, 42-43.

Monsen, S. B. 1987. Shrub selections for pinyon-juniper plantings.

In: Everett, R L., compo Proceedings-pinyon-juniper conference; 1986 January 13-16; Reno, NV. Ogden, UT: Gen. Tech. Rep.

INT-215, U.S. Department of Agriculture, Forest Service, Intermountain Research Station: 326-329.

Monsen, S. B.; McArthur, E. D. 1995. Implications of early Intermountain range and watershed restoration practices. In: Roundy,

B. A; McArthur, E. D.; Haley, J. S.; Mann, D. K, comps. Proceedings: wildland shrub and arid land restoration symposium; 1993

October 19-21; Las Vegas, NV. Ogden, UT: Gen. Tech. Rep. INT-

GTR-315. U.S. Department of Agriculture, Forest Service, Intermountain Research Station: 16-25.

Monsen, S. B.; Stevens, R, eds. In press. Restoring western range and wildlands. Ogden, UT: Gen. Tech. Rep. RMRS-GTR-xxx. U.S.

Department of Agriculture, Forest Service, Rocky Mountain

Research Station.

Plummer, A P.; Christensen, D. R; Monsen, S. B. 1968. Restoring big game range in Utah. Publication 68-3. Salt Lake City, UT:

Utah Division of Fish and Game. 183 p.

Plummer, M.1984. Considerations in selecting chenopod species for range seedings. In: Tiedemann, A R.; McArthur, E. D.; Stutz,

H. C.; Stevens, R: Johnson, K L., comps. 1983 May 2-6; Provo,

UT. Ogden, UT: Gen. Tech. Rep. INT-l72. U.S. Department of

Agriculture, Forest Service, Intermountain Forest and Range

Experiment Station: 183-186.

Richards, R T.; Chambers, J. C.; Ross, C. 1998. Use of native plants on federal lands: policy and practice. Journal of Range

Management. 51: 625-632.

Roundy, B. A 1996. Revegetation of rangelands for wildlife. In:

Krausman, ed. Denver, CO: Society for Range Management:

355-368.

Roundy, B. A; McArthur, E. D.; Haley, J. S.; Mann, D. K comps.

1995. Proceedings: wildland shrub and arid land restoration symposium. 1993 October 19-21; Las Vegas, NV. Ogden, UT: Gen.

Tech. Rep. INT-GTR-315. U.S. Department of Agriculture , Forest

Service, Intermountain Research Station. 384 p.

Rumbaugh, M. D.; Townsend, C. E. 1985. Range legume selection and breeding in North America. In: Carlson, J. R; McArthur,

E. D., eds. Symposium: range plant improvement. 1985 February

11-15; Salt Lake City, UT. Denver, CO: Proceedings, selected papers presented at the 38th Annual Meeting of the Society for

Range Management: 137-147.

Young, S. 1995. Alternative germplasm release procedures for producing certified seed. Seed World 133 (8): 14-15.

Young, S.; Kitchen, S.; Armstrong, J. 1995. AOSCA approves certification guidelines for wild land collected seed. Seed World 133

(1): 20-21.

330 USDA Forest Service Proceedings RMRS-P-9. 1999

Download