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Research Project: GENETIC RESOURCES, EVALUATION AND INFORMATION MANAGEMENT OF WOODY LANDSCAPE PLANT GERMPLASM

Location: Floral and Nursery Plants Research Unit

2005 Annual Report


1.What major problem or issue is being resolved and how are you resolving it (summarize project aims and objectives)? How serious is the problem? What does it matter?
The environmental horticulture industry, also known as the "Green Industry", is one of the fastest growing segments of the nation's agricultural economy and is comprised of a variety of businesses involved in production, distribution and services associated with ornamental plants, landscape and garden supplies and equipment. The National Gardening Association reported that 85 million U.S. households spent $39.6 billion at lawn and garden retail outlets in 2002. The USDA National Agricultural Statistics Service reported that in 2004 the wholesale value of floral and nursery crops was $9.15 billion with 18,841 growers employing 191,501 full-time workers. Over half of these growers (59%) had sales less than $100,000.

The overall objectives of this project statement on the Woody Landscape Plant Germplasm Repository (WLPGR) are to conserve a broad spectrum of woody landscape plant genetic resources and associated information for use in research and crop improvement. Specific objectives are to (1) to collect and conserve genetic resources, (2) evaluate the preceding genetic resources for horticultural merit, and characterize them genetically, and (3) transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide.

Conservation of genetic resources will be resolved by collecting genetic resources for a broad spectrum of woody landscape plants in collaboration with other botanical gardens and arboreta, and preserving genetic resources in the field. Woody landscape plants (WLP) are not typical agronomic crops. As a part of the National Plant Germplasm System (NPGS), WLPGR is responsible for WLP germplasm collection for the US Department of Agriculture, Agricultural Research Service. This is a long term project that involves many scientists of different disciplines and therefore, US Department of Agriculture (USDA) should be responsible. Germplasm collection should be done under a multi-discipline approach that involves characterization, conservation and preservation, maintenance, and distribution, as well as adequate evaluation of existing collections of germplasm.

This program is necessary to support research breeding programs that are developing superior trees and shrubs. If germplasm is not adequately evaluated, it will limit the usefulness of the collection. For example, the Asian hemlock wooly adelgid is a serious pest of native forests and cultivated landscape plantings of Eastern hemlocks, Tsuga canadensis, and Carolina hemlocks, Tsuga caroliniana. There is a need to identify sources of resistance to this pest. Another example is the silverbell, Halesia tetraptera var. tetraptera. It is a small native tree in the southern areas of the US and at present more than 500 plants of different ages from 20 provenances are established. From these populations, plants with desirable characteristics based on flowering, flower color, and shape of the plants will be selected and evaluated. To breed new hybrids and to study the genetic diversity of germplasm, new germplasm should be collected to introduce genes for economically important traits.

This project addresses ARS National Program 301, "Plant, Microbial, and Insect Genetic Resources, Genomics and Genetic Improvement", Component I, "Genetic Resources Management".


2.List the milestones (indicators of progress) from your Project Plan.
Year 1 (FY 2004)

Collect and conserve genetic resources; germplasm collection; conduct collection trip to China, South Korea, and Japan.

Collect and conserve genetic resources; germplasm collection; support and participate in NACPEC collection trips.

Collect and conserve genetic resources; germplasm collection; acquire germplasm from NPGS supported collection trip to Georgia.

Collect and conserve genetic resources; collaborate with the American Association of Botanical Gardens and Arboreta (AABGA)/ North America Plant Collection Consortium (NAPCC); organize workshops.

Collect and conserve genetic resources; move germplasm from Glenn Dale to South Farm; vegetative propagation.

Collect and conserve genetic resources; move germplasm from Glenn Dale to South Farm; seed propagation.

Collect and conserve genetic resources; move germplasm from Glenn Dale to South Farm; transplanting of small plants in containers.

Collect and conserve genetic resources; move germplasm from Glenn Dale to South Farm; transplanting of large plants by contractor.

Collect and conserve genetic resources; move germplasm from Glenn Dale to South Farm; root pruning of larger specimens.

Collect and conserve genetic resources; move germplasm from Glenn Dale to South Farm; ball and burlap plants for transplanting.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; Seed germination; NMR studies of Styrax japonicus.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; Seed germination; seed germination test of Nandina and Pinus.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; Seed germination; carbohydrate, gibberellin, lipid analysis of Styrax.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; vegetative propagation and overwinter loss; prepare Styrax cuttings for overwinter test.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Halesia germplasm; propagation of Halesia.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Deutzia and Ardisia; propagation of Deutzia and Ardisia.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Pinus and Abies; propagation of Pinus and complete Abies.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; molecular markers of Ilex; collection of Ilex.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; molecular markers of Camellia; collection of Camellia and identification of cold hardiness.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; molecular markers of Halesia; collect for microsatellite analysis.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; germplasm distribution; distribute germplasm either as seeds or vegetative materials.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; germplasm distribution; release of germplasm for evaluation to industry collaborators.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; technology transfer and WLPGR homepage; enter collection and evaluation data into GRIN.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; technology transfer and WLPGR homepage; keep the homepage of WLPGR updated.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; participate scientific meetings to present a talk.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; participate trade show and introduce new and unique plant materials.

Year 2 (FY 2005)

Collect and conserve genetic resources; germplasm collection; plan with scientists in Russian Far East for a contract collecting trip.

Collect and conserve genetic resources; germplasm collection; USA collecting by WLPGR staff.

Collect and conserve genetic resources; germplasm collection; NACPEC collection trips (support or participate).

Collect and conserve genetic resources; collaborate with the American Association of Botanical Gardens and Arboreta (AABGA)/ North America Plant Collection Consortium (NAPCC); collection of Inventory of the germplasm Compiling Data to link with GRIN.

Collect and conserve genetic resources; collaborate with the American Association of Botanical Gardens and Arboreta (AABGA)/ North America Plant Collection Consortium (NAPCC); continue to support AABGA/NAPCC activity.

Collect and conserve genetic resources; move germplasm from Glenn Dale to South Farm; vegetative propagation.

Collect and conserve genetic resources; move germplasm from Glenn Dale to South Farm; seed propagation.

Collect and conserve genetic resources; move germplasm from Glenn Dale to South Farm; transplanting of plants in containers. Collect and conserve genetic resources; move germplasm from Glenn Dale to South Farm; transplanting of large plants by contractor.

Collect and conserve genetic resources; move germplasm from Glenn Dale to South Farm; plants balled and burlaped for transplanting.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; seed germination; Pinus - NMR.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; seed germination; seed germination test of Nandina and Pinus.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; seed germination; carbohydrate, gibberellin, lipid analysis with Pinus.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; vegetative propagation and overwinter loss; give low temperature treatment.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; vegetative propagation and overwinter loss; prepare samples for carbohydrate analysis.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Halesia germplasm; propagation of Halesia.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Halesia germplasm; greenhouse evaluation.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Deutzia and Ardisia; greenhouse evaluation.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Pinus and Abies; temperature treatment and observe growth response. Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Pinus and Abies; collect samples for carbohydrate analysis.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; molecular markers of Ilex; ISSR analysis.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; molecular markers of Camellia; identification of cold hardy markers in parents and seedlings.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; molecular markers of Halesia; continue Halesia for microsatellite analysis.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; germplasm distribution; distribute germplasm either as seeds or vegetative materials.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; germplasm distribution; release of germplasm for evaluation to industry collaborators.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; technology transfer and WLPGR homepage; enter collection and evaluation data into GRIN.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; technology transfer and WLPGR homepage; keep the homepage of WLPGR updated.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; participate scientific meetings to present a talk.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; participate trade show and introduce new and unique plant materials.

Year 3 (FY 2006)

Collect and conserve genetic resources; germplasm collection; make arrangements for contract collecting from Russian Far East or conduct collecting trip.

Collect and conserve genetic resources; germplasm collection; conduct collection trip to China, S. Korea by WLPGR staff.

Collect and conserve genetic resources; germplasm collection; NACPEC collection trips (participate or support).

Collect and conserve genetic resources; germplasm collection; make arrangements and plan for collecting trip to Russia Far East by WLPGR and NA scientists and staff.

Collect and conserve genetic resources; collaborate with the American Association of Botanical Gardens and Arboreta (AABGA)/ North America Plant Collection Consortium (NAPCC); collection of Inventory of the germplasm.

Collect and conserve genetic resources; collaborate with the American Association of Botanical Gardens and Arboreta (AABGA)/ North America Plant Collection Consortium (NAPCC); data management to link with GRIN.

Collect and conserve genetic resources; move germplasm from Glenn Dale to South Farm; vegetative propagation.

Collect and conserve genetic resources; move germplasm from Glenn Dale to South Farm; seed propagation.

Collect and conserve genetic resources; move germplasm from Glenn Dale to South Farm; transplanting of plants in containers. Collect and conserve genetic resources; move germplasm from Glenn Dale to South Farm; transplanting of large plants by contractor.

Collect and conserve genetic resources; move germplasm from Glenn Dale to South Farm; plants balled and burlaped for transplanting.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; seed germination; Pinus - NMR.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; seed germination; seed germination test of Nandina.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; seed germination; continue carbohydrate, gibberellin, lipid analysis with Pinus.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; vegetative propagation and overwinter loss; evaluate growth and flowering.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; vegetative propagation and overwinter loss; analyze carbohydrate.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Halesia germplasm; propagation of Halesia.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Halesia germplasm; greenhouse evaluation.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Halesia germplasm; field evaluation.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Deutzia and Ardisia; greenhouse evaluation.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Pinus and Abies; temperature treatment and observe growth response; Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Pinus and Abies; collect samples for carbohydrate analysis.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; molecular markers of Ilex; RAPD analysis.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; molecular markers of Camellia; identification of cold hardy markers in parents and seedlings.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; molecular markers of Halesia; continue Halesia for microsatellite analysis.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; germplasm distribution; distribute germplasm either as seeds or vegetative materials.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; germplasm distribution; release of germplasm for evaluation to industry collaborators.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; technology transfer and WLPGR homepage; enter collection and evaluation data into GRIN.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; technology transfer and WLPGR homepage; keep the homepage of WLPGR updated.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; participate scientific meetings to present a talk.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; participate trade show and introduce new and unique plant materials.

Year 4 (FY 2007)

Collect and conserve genetic resources; germplasm collection; plan for collection trip to trans-Caucasian republics.

Collect and conserve genetic resources; germplasm collection; USA collecting by WLPGR staff (in coordination with USNA staff).

Collect and conserve genetic resources; germplasm collection; NACPEC collection trips (Support or participate).

Collect and conserve genetic resources; germplasm collection; make arrangements for contract collecting from Russian Far East or conduct collecting trip.

Collect and conserve genetic resources; germplasm collection; conduct collection trip to China, S. Korea by WLPGR staff.

Collect and conserve genetic resources; collaborate with the American Association of Botanical Gardens and Arboreta (AABGA)/ North America Plant Collection Consortium (NAPCC); collection of Inventory of the germplasm.

Collect and conserve genetic resources; collaborate with the American Association of Botanical Gardens and Arboreta (AABGA)/ North America Plant Collection Consortium (NAPCC); data management to link with GRIN.

Collect and conserve genetic resources; move germplasm from Glenn Dale to South Farm; transplanting of plants in containers. Collect and conserve genetic resources; move germplasm from Glenn Dale to South Farm; transplanting of large plants by contractor.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; seed germination; seed germination test of Nandina.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; seed germination; continue carbohydrate, gibberellin, lipid analysis with Pinus.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; vegetative propagation and overwinter loss; evaluate growth and flowering.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; vegetative propagation and overwinter loss; analyze carbohydrate.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Halesia germplasm; greenhouse evaluation.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Halesia germplasm; field evaluation.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Deutzia and Ardisia; greenhouse evaluation.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Pinus and Abies; analyze carbohydrate.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Pinus and Abies; observe growth response.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; molecular markers of Ilex; introgression test with selected populations.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; molecular markers of Camellia; test markers to seedlings and wild germplasm of unknown cold hardiness.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; molecular markers of Halesia; continue Halesia for microsatellite analysis.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; germplasm distribution; distribute germplasm either as seeds or vegetative materials.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; germplasm distribution; release of germplasm for evaluation to industry collaborators.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; technology transfer and WLPGR homepage; enter collection and evaluation data into GRIN.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; technology transfer and WLPGR homepage; keep the homepage of WLPGR updated.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; participate scientific meetings to present a talk.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; participate trade show and introduce new and unique plant materials.

Year 5 (FY 2008)

Collect and conserve genetic resources; germplasm collection; NACPEC collection trips (Support or participate).

Collect and conserve genetic resources; germplasm collection; plan and conduct collecting trip to trans-Caucasian republics.

Collect and conserve genetic resources; germplasm collection; make arrangements for contract collecting from Russian Far East or conduct collecting trip.

Collect and conserve genetic resources; germplasm collection; conduct collection trip to China, S. Korea by WLPGR staff

Collect and conserve genetic resources; collaborate with the American Association of Botanical Gardens and Arboreta (AABGA)/ North America Plant Collection Consortium (NAPCC); collection of Inventory of the germplasm.

Collect and conserve genetic resources; collaborate with the American Association of Botanical Gardens and Arboreta (AABGA)/ North America Plant Collection Consortium (NAPCC); data management to link with GRIN. Collect and conserve genetic resources; move germplasm from Glenn Dale to South Farm; complete of the move from Glenn Dale to South Farm.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; seed germination; complete carbohydrate, gibberellin, lipid analysis with Pinus.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; vegetative propagation and overwinter loss; evaluate growth and flowering. Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Halesia germplasm; field evaluation. Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Pinus and Abies; analyze carbohydrate.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; evaluation of Pinus and Abies; observe growth response.

Evaluation of genetic resources for horticultural merit, and characterize them genetically; molecular markers of Camellia; test markers to seedlings and wild germplasm of unknown cold hardiness.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; germplasm distribution; distribute germplasm either as seeds or vegetative materials.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; germplasm distribution; release of germplasm for evaluation to industry collaborators.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; technology transfer and WLPGR homepage; enter collection and evaluation data into GRIN.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; technology transfer and WLPGR homepage; keep the homepage of WLPGR updated.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; participate scientific meetings to present a talk.

Transfer technology in the form of the preceding genetic resources and associated information to researchers and breeders world wide; participate trade show and introduce new and unique plant materials.


4a.What was the single most significant accomplishment this past year?
Screening immature Ardisia seedlings for fruit color Sequence characterized amplified region DNA markers (SCAR) based on random amplified polymorphic DNA markers (RAPD) were developed for Ardisia crenata seedlings. These seedlings were from a cross between a plant with variegated foliage and red fruit and a plant with non-variegated foliage and white fruit. The SCAR markers were able to screen immature seedlings for fruit color. Typically, it requires 4 years of growth for plants to reach maturity, flower, and set fruit. These markers allow one to screen immature plants for characteristics only observed on mature plants.


4b.List other significant accomplishments, if any.
Acquisition of Russian germplasm The National Plant Germplasm System (NPGS) has very little ornamental plant material from Russia. We have targeted the Trans Caucasus countries, as well as the Russian East, for germplasm collection. Successful discussions have occurred to acquire new germplasm from the Islands of Sakholin and the Kurils. This germplasm would be the first from either island to enter into NPGS.

Germplasm relocation and distribution In order to consolidate resources and reduce expenses, the germplasm collection at Glenn Dale, Maryland is being moved to the South Farm at the Henry A.Wallace Beltsville Agricultural Research Center in Beltsville, Maryland. We have made substantial progress towards a complete withdrawal from the ARS site in Glen Dale. Approximately 85 percent of the field germplasm has been transplanted to South Farm to date.

Germplasm distribution and acquisition A total of 296 germplasm accessions were distributed to gardens, arboreta, nurseries, and research institutes in the United States, and also other foreign countries. In addition, 270 accessions were received from the Morris Arboretum, the University of California, and the USDA ARS Repository in Palmer, Alaska. These accessions will expand the gene pool base of the germplasm collection.


4c.List any significant activities that support special target populations.
A Specific Cooperative Agreement with AABGA/NAPCC was extended to help support the development and management of the AABGA/NAPCC and by working closely with ARS in planning, developing, and managing the NAPCC.


4d.Progress report.
Support Development of the North American Plant Collections Consortium This report serves to document research and service conducted under a Specific Cooperative Agreement (58-1230-1-047) between ARS and American Association of Botanic Gardens and Arboreta (AABGA)/ North American Plant Collections Consortium (NAPCC). Funding was provided to help support the development and management of germplasm maintained by the AABGA/NAPCC and by working closely with ARS in planning, developing, sharing, and managing the NAPCC data. Preservation and documentation of germplasm curated in NAPCC collections increases the efficiency of overall woody landscape plant germplasm management by reducing duplication.

Corylopsis and Camellia propagation This report serves to document research and service conducted under a Trust Fund Agreement (58-1230-3-F161) between ARS and the Rural Development Administration (RDA), Korea. Germplasm of Camellia and Corylopsis was propagated from stem tip cuttings and were made available to RDA for evaluation for horticultural merits. Vegetative propagated Camellia collected from Dae Chung Island, Korea and seedlings of Corylopsis were received from RDA. Currently, development of markers for cold-hardiness in camellia is underway using random amplified polymorphic DNA (RAPD). Additional leaf samples of Corylopsis for DNA extraction were obtained and second phase of the project to characterize C. glabrescens complex is underway using RAPD and single nucleotide polymorphism (SNP) markers. Two-year old camellia seedlings failed to flower in the greenhouse, while rooted cuttings flowered in the first year, although the survival rate of selected cultivars was very low. Also, when vegetatively propagated Camellia cuttings rooted at RDA were sent to Beltsville, the survival rate was low. Over-winter loss of vegetative propagated Styrax was inversely related to the length of cuttings. This research will result in a propagation protocol for these important ornamental species.


5.Describe the major accomplishments over the life of the project, including their predicted or actual impact.
Styrax seed germination Magnetic resonance imaging (MRI) was used to determine seed maturation in a non-destructive manner. MRI showed tissues that contained water with different mobility in early growth stages during seed development of Styrax japonicus seed. In the pericarp, seed coat, and endosperm of fruits harvested 17 weeks after anthesis, the amount of free water decreased with maturation of the seed, and water existed in bound forms in endosperm and cotyledons as seeds became mature. Styrax japonicus 'Pink Chimes' fruits harvested 11 weeks after anthesis formed cotyledons and endosperm as shown by MRI, and seeds were fully developed when harvested 13 - 15 weeks after anthesis. Styrax japonicus seeds (NA accession no. 60191) harvested 12 weeks (1999) and 16 weeks (2000) after anthesis were fully developed and mature, and responded to germination-promoting treatments. To ensure good germination higher than 80%, seeds should be harvested 12 to 16 weeks after anthesis and treated 1 month of warm (18 C) followed by 2 months of cold (5.5 C) treatments. The maximum percent germination was 98%, after 2 months of warm treatment followed by 3 months of cold treatment, which is significantly higher than the percentage previous reported. This accomplishment was marked as a milestone in the current Project Plan Year 1 (FY 2004); is part of Component I of National Program 301 - Genetic Resource Management; and fit into the ARS Strategic Plan under performance measure 1.2.8.

Germplasm distribution and acquisition In 2004, a total of 125 germplasm accessions were made. These accessions will expand the gene pool base of the germplasm collection. Accessions were in the form of seeds (Pinus koraiensis, Acer sp, and Viburnum trilobum), plants (Quercus robur and Rhododendron ruteum), and cuttings (winter hardy Camellia japonica and C. sasanqua and Corylopsis glabrescens). Responding to the requests made through GRIN or directly to WLPGR staff, distributions were made to gardens, arboreta, nurseries, and research institutes in the United States, and also other foreign countries. A total of 328 germplasm accessions were distributed. Distributions were made in the form of seeds (Acer tartaricum and Cedrus libani) and plants (Celtis bungeana, Fraxinus bungeana, and Camellia oleifera). This accomplishment was marked as a milestone in the current Project Plan Year 1 (FY 2004); is part of Component I of National Program 301 - Genetic Resource Management; and fit into the ARS Strategic Plan under performance measure 1.2.8.

Support Development of the North American Plant Collections Consortium This report documents research and service conducted under a Specific Cooperative Agreement , Agreement No., 58-1230-1-047 between ARS (Project No. 1230-21000-029-00D: Genetic Resources, Evaluation, and Information Management of Woody Landscape Plant Germplasm) and American Association of Botanic gardens and Arboreta (AABGA)/ North American Plant Collections Consortium (NAPCC). The SCA was extended to September, 2004 by providing funding to help support the development and management of germplasm maintained by the AABGA/NAPCC and by working closely with ARS in planning, developing, sharing, and managing the NAPCC data. Preservation and documentation of germplasm curated in NAPCC collections increases the efficiency of overall woody landscape plant germplasm management by reducing duplication.


6.What science and/or technologies have been transferred and to whom? When is the science and/or technology likely to become available to the end-user (industry, farmer, other scientists)? What are the constraints, if known, to the adoption and durability of the technology products?
Responding to the requests made through the GRIN or directly to WLPGR staff, following distributions were made to gardens, arboreta, nurseries, and research institutes in the United States, and also other foreign countries. In 2005, a total of 296 germplasm accessions were distributed to groups and individuals.

Information on production of quality plants of Ardisia crenata in 18 months has been published and is now available on line for growers and interested scientists to shorten the juvenile period to produce by vegetative cuttings.


7.List your most important publications in the popular press and presentations to organizations and articles written about your work. (NOTE: List your peer reviewed publications below).
A display describing current research, and practical demonstrations of the rapid detection of plant viruses, was presented at the Mid-Atlantic Nursery Trade Show in Baltimore, MD held January 5-7, 2005.

A display describing current research was presented at the Beltsville Agricultural Research Center, Open House Field Day held June 4, 2005.

Roh, M.., R. Lawson, J.S. Lee, J.K. Suh, R. Criley and P. Apavatjrut. 2005. Evaluation of Curcuma as potted plant and cut flower (abstract). HortScience 40(4):1012. Log No. 177400, accepted, April 2005, published, June 2005.

Roh, M. S. E. J. Cheong, I-K, Choi, E-H, Yoo, J-Y, Kim and N. S. Lee. 2005. Characterization of the Genus Corylopsis (abstract). HortScience 40(4): 1051. Log No. 177406, accepted, April, 2005, published, June 2005.


Review Publications
Song, C.Y., Lee, N.S., Roh, M.S. 2004. Morphological characters and molecular markers for selection of Campanula portenschlagiana hybrids. J. of Kor. Soc. for Hort. Sci. 45:261-269.

Roh, M.S., Lee, A-K., Suh, J-K. 2005. Production of high quality Ardisia plants by vegetative propagation. Scienta Hort. 104:293-303.

Roh, M.S. 2005. Flowering and inflorescence development of Lachenalia aloides 'Pearsonii' as influenced by bulb storage and forcing temperature. Scientia Hort. 104:305-323.

Allenstein, P., Conrad, K. 2005. National plant germplasm system and North American plant collections consortium: A decade of collaboration. Public Gardens. 3:14-16 and 37.

Roh, M.S., Lawson, R., Lee, J.S., Suh, J.K., Criley, R., Apavatjrut, P. 2005. Evaluation of Curcuma as potted plant and cut flower. HortScience. 40(4):1012.

Roh, M.S., Cheong, E.J., Choi, I-K, Yoo, E-H, Kim, J-Y, Lee, N.S. 2005. Characterization of the Genus Corylopsis. HortScience. 40(4):1051.

   

 
Project Team
Roh, Mark
Conrad, Kevin
 
Project Annual Reports
  FY 2008
  FY 2007
  FY 2006
  FY 2005
 
Publications
   Publications
 
Related National Programs
  Plant Genetic Resources, Genomics and Genetic Improvement (301)
 
Related Projects
   SUPPORT DEVELOPMENT OF THE NORTH AMERICAN PLANT COLLECTIONS CONSORTIUM
 
 
Last Modified: 11/07/2008
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