Projects

RESEARCH, ACQUISITION, MANAGEMENT, AND DOCUMENTATION OF PLANT GENETIC RESOURCES Appropriated (D)   Accession Number: 413152

COLLECTION, EVALUATION, AND CONSERVATION OF KEY NATIVE SPECIES Reimbursable (R)   Accession Number: 411425

AQUISITION, CHARACTERIZATION, CONSERATION AND UTILIZATION OF NATIVE PLANT GERMPLASM Reimbursable (R)   Accession Number: 412368

MAINTENANCE CHARACTERIZATION, STORAGE, AND DISTRIBUTION OF KEY NATIVE GERMPLASM Reimbursable (R)   Accession Number: 408802

Publications

Safflower Germplasm: Past, Present, and Future. - (Proceedings/Symposium) - (01-Jun-08)

Genebanks Pay Big Dividends to Agriculture, the Environment, and Human Welfare - (Other)

Johnson, R.C. 2008. Genebanks Pay Big Dividends to Agriculture, the Environment, and Human Welfare. Public Library of Science for Pathogens. (See URL).

Seed Production from Non-flowering Orchardgrass: Proof of Concept - (Abstract)

Casler, M.D., Johnson, R.C., Barker, R.E., Jenderek, M.M., Papadopolous, Y.A., Cheney, J.H. 2007. Seed Production from Non-flowering Orchardgrass: Proof of Concept. ASA-CSSA-SSSA Annual Meeting Abstracts. Paper Number 175-1.

Collection, conservation, and seed zones for Tapertip onion (Allium acuminatum Hook). - (Proceedings/Symposium) - (19-Jul-07)

Characterizing Safflower Germplasm with AFLP Molecular Markers - (Peer Reviewed Journal)

Johnson, R.C., Kisha, T.J., Evans, M.A. 2007. Characterizing Safflower Germplasm with AFLP Molecular Markers. Crop Science. 47:1728-1736.

Carbon Isotope Discrimination, Selection Response, and Forage Production of Tall Fescue in Contrasting Environments - (Abstract)

Johnson, R.C., Hopkins, A.A. 2007. Carbon Isotope Discrimination, Selection Response, and Forage Production of Tall Fescue in Contrasting Environments. ASA-CSSA-SSSA Annual Meeting Abstract 279-6.

Development of Kentucky Bluegrass for Non-Burn Seed Production - (Abstract)

Johnston, W.J., Johnson, R.C., Golob, C.T., Nelson, M.C., Pare, K., Dobson, K. 2007. Development of Kentucky Bluegrass for Non-Burn Seed Production. ASA-CSSA-SSSA Annual Meeting Abstract 71-13.

Insect Pollination in the Regeneration of Germplasm at the Western Regional Plant Introduction Station - (Proceedings/Symposium)

Clement, S.L., Hellier, B.C., Elberson, L.R., Bradley, V.L., Johnson, R.C. 2007. Insect Pollination in the Regeneration of Germplasm at the Western Regional Plant Introduction Station. Proceedings 9th International Pollination Symposium on Plant-Pollinator Relationships, Diversity in Action. Iowa State University, Ames, Iowa. p. 62-63.

Temperate forage legume and grass genetic resources: capitalizing on the U.S. germplasm system - (Proceedings/Symposium) - (25-Sep-06)

USING PREVOSTI'S DISTANCE COEFFICIENT FOR DIRECT STATISTICAL ANALYSIS OF POPULATION DIFFERENCES - (Abstract)

Kisha, T.J., Johnson, R.C., Skinner, D.Z., Greene, S.L. 2006. Using prevosti's distance coefficient for direct statistical analysis of population differences [abstract]. HortScience. 44(4):967-698.

COLLECTING TAPER TIP ONION (ALLIUM ACUMINATUM HOOK.) IN THE GREAT BASIN USING TRADITIONAL AND GIS METHODS. - (Peer Reviewed Journal)

Adair, R., Johnson, R.C., Hellier, B.C., Kaiser, W. 2006. Collecting taper tip onion (allium acuminatum hook.) in the great basin using traditional and gis methods. Native Plant Journal. 7:141-148.

AUTUMN GROWTH AND ITS RELATIONSHIP TO WINTER SURVIVAL IN DIVERSE SAFFLOWER GERMPLASM - (Peer Reviewed Journal)

Johnson, R.C., Dajue, L., Bradley, V.L. 2006. Autumn growth and its relationship to winter survival in diverse safflower germplasm. Canadian Journal of Plant Science. 86:701-732.

CONFINING SAFFLOWER POLLEN DURING REGENERATION OF GERMPLASM SEED STOCKS - (Proceedings/Symposium)

Johnson, R.C. 2005. Confining safflower pollen during regeneration of germplasm seed stocks. In: Workshop on the confinement of genetically engineered crops during field testing, September 13-15, 2004, USDA-APHIS Headquaters.

Variation In Winter Hardiness Among Safflower Accessions - (Proceedings/Symposium)

Johnson, R.C., Dajue, L., Foiles, C.L., Bradley, V.L. 2005. Variation In Winter Hardiness Among Safflower Accessions. In: Proceedings of the 6th International Safflower Conference, June 6-10, 2005, Istanbul, Turkey. p. 113-118.

Characterizing Safflower Germplasm with AFLP Molecular Markers - (Proceedings/Symposium)

Johnson, R.C., Kisha, T.J., Foiles, C.L., Bradley, V.L. 2006. Characterizing Safflower Germplasm with AFLP Molecular Markers. In Proceedings of the 6th International Safflower Conference, June 6-10, 2005, Istanbul, Turkey. p. 3-8.

CHARACTERIZATION OF A USDA KENTUCKY BLUEGRASS (POA PRATENSIS L.) CORE COLLECTION FOR REPRODUCTIVE MODE AND DNA CONTENT BY FLOW CYTOMETRY - (Peer Reviewed Journal)

Wieners, R.R., Fei, S., Johnson, R.C. 2006. Characterization of a usda kentucky bluegrass (poa pratensis l.) core collection for reproductive mode and dna content by flow cytometry. Genetic Resources and Crop Evolution. doi:10.1007/s10722-005-7766-0.

CHARACTERIZING SAFFLOWER GERMPLASM WITH AFLP MOLECULAR MARKERS - (Abstract)

Johnson, R.C., Kisha, T.J., Foiles, C.L., Bradley, V.L. 2005. Characterizing safflower germplasm with aflp molecular markers [abstract]. Crop Science Society of America. p. 5459.

VARIANCE OF MOLECULAR GENETIC DISTANCES AMONG ALFALFA SYNTHETIC POPULATIONS BY MARKER TYPE - (Abstract)

Kisha, T.J., Johnson, R.C., Skinner, D.Z., Bauchan, G.R., Greene, S.L. 2004. Variance of molecular genetic distances among alfalfa synthetic populations by marker type. Agronomy Abstracts. #5781.

CONFINING SAFFLOWER POLLEN DURING REGENERATION OF GERMPLASM SEED STOCKS - (Abstract)

Johnson, R.C. 2005. Confining safflower pollen during regeneration of germplasm seed stocks [abstract]. USDA APHIS Headquarters Workshop on the Confinement of Genetically Engineered Crops during Field Testing September 13-15, 2004 Agenda and Abstracts, Insect Pollinated Crops.

REGIONAL CLIMATIC CHARACTERIZATION OF PACIFIC NORTHWEST, USA, GREEN-TYPE POA ANNUA - (Peer Reviewed Journal)

Poole, G.J., Johnson, W.J., Johnson, R.C. 2005. Regional climatic characterization of pacific northwest, usa, green-type poa annua. International Turfgrass Society Reseach Journal. 10:565-571

BREEDING NON-FLOWERING ORCHARDGRASS - (Abstract)

Casler, M.D., Barker, R.E., Cherney, J.H., Papadopolous, Y.A., Johnson, R.C., Jenderek, M.M. 2004. Breeding non-flowering orchardgrass [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. Paper No. 4380.

EFFECT OF SEED SAMPLING METHOD DURING REGENERATION ON GENETIC POPULATION STRUCTURE AND GROWTH OF MODEL RYEGRASS POPULATIONS. - (Peer Reviewed Journal)

Johnson, R.C., Bradley, V.L., Evans, M.A. 2006. Effect of seed sampling method during regeneration on genetic population structure and growth of model ryegrass populations. Plant Genetic Resources Newsletter. 144:1-7.

REGENERATING GRASS GERMPLASM: CHOOSING THE RIGHT COMPROMISE - (Proceedings/Symposium)

Johnson, R.C., Bradley, V.L., Foiles, C.L. 2004. Regenerating grass germplasm: choosing the right compromise. Grass Breeders Work Planning Conference Proceedings.

CHARACTERIZATION AND ENHANCEMENT OF THE USDA-ARS KENTUCKY BLUEGRASS COLLECTION. - (Proceedings/Symposium)

Johnson, R.C., Johnston, W.J., Golob, C.T. 2004. Evaluating genetic resources for sustainable production of poa pratensis. Grass Breeders Work Planning Conference Proceedings.

INFLORESCENCE SAMPLING IMPROVES EFFECTIVE POPULATION SIZE OF GRASSES - (Peer Reviewed Journal)

Johnson, R.C., Bradley, V.L., Evans, M.A. 2004. Inflorescence sampling improves effective population size of grasses. Crop Science. v. 44. p. 1450-1455.

EVALUATION AND ENHANCEMENT OF KENTUCKY BLUEGRASS GENETIC RESOURCES FOR SUSTAINABLE PRODUCTION - (Other)

JOHNSON, R.C., JOHNSTON, W.J., GOLOB, C.T., BERTOLI, F.B., NELSON, M.C., KISHA, T.J. EVALUATION AND ENHANCEMENT OF KENTUCKY BLUEGRASS GENETIC RESOURCES FOR SUSTAINABLE PRODUCTION. ASA-CSSA-SSSA ANNUAL MEETING ABSTRACTS. 2003. p. 916495.

AGRONOMIC AND MOLECULAR EVALUATION OF KENTUCKY BLUEGRASS GERMPLASM COLLECTED IN ITALY - (Other)

BERTOLI, F.B., JOHNSON, R.C., LUCARONI, B., ROMANI, M., RUSSI, L., PIANO, E., FALCINELLI, M. AGRONOMIC AND MOLECULAR EVALUATION OF KENTUCKY BLUEGRASS GERMPLASM COLLECTED IN ITALY. . 2003.

DETERMINATION OF REPRODUCTIVE MODE AND GENOME SIZE OF A USDA CORE COLLECTION OF KENTUCKY BLUEGRASS (POA PRATENSIS L.) BY CELL FLOW CYTOMETRY - (Other)

WIENERS, R.R., FEI, S., JOHNSON, R.C. DETERMINATION OF REPRODUCTIVE MODE AND GENOME SIZE OF A USDA CORE COLLECTION OF KENTUCKY BLUEGRASS (POA PRATENSIS L.) BY CELL FLOW CYTOMETRY. ASA-CSSA-SSSA ANNUAL MEETING ABSTRACTS. 2003. p. 123246

RESIDUE MANAGEMENT, SEED PRODUCTION, CROP DEVELOPMENT AND TURF QUALITY IN DIVERSE KENTUCKY BLUEGRASS GERMPLASM - (Peer Reviewed Journal)

Johnson, R.C., Johnston, W.J., Golob, C.T. 2003. Residue Management, Seed Production, Crop Development, and Turf Quality in Diverse Kentucky Bluegrass Germplasm. Crop Science. v. 43. p. 1091-1099.

RESIDUE MANAGEMENT, SEED PRODUCTION, CROP DEVELOPMENT, AND TURF QUALITY IN DIVERSE KENTUCKY BLUEGRASS GERMPLASM - (Peer Reviewed Journal)

JOHNSON, R.C., JOHNSTON, W.J., GOLOB, C.T. RESIDUE MANAGEMENT, SEED PRODUCTION, CROP DEVELOPMENT, AND TURF QUALITY IN DIVERSE KENTUCKY BLUEGRASS GERMPLASM. CROP SCIENCE. 2003. v. 43. p. 1091-1099.

MOLECULAR VARIATION AMONG AND WITHIN DIVERSE KENTUCKY BLUEGRASS GERMPLASM - (Other)

BERTOLI, F.B., JOHNSON, R.C., KISHA, T.J., JOHNSTON, W.J. MOLECULAR VARIATION AMONG AND WITHIN DIVERSE KENTUCKY BLUEGRASS GERMPLASM. Molecular Breeding of Forage and Turf Conference. 2003. p. 141

THE IDENTIFICATION OF DUPLICATE ACCESSIONS WITHIN A GRASS GERMPLASM COLLECTION USING RAPD ANALYSIS. - (Other)

Bradley, V.L., Kisha, T.J., Johnson, R.C. 2002. The identification of duplicate accessions within a grass germplasm collection using rapd analysis [abstract]. Crop Science Society of America. p. 131923.

INCIDENCE OF INTROGRESSION BETWEEN CULTIVATED ALFALFA AND WILD RELATIVES IN NORTHWESTERN KAZAKHSTAN. - (Abstract)

Greene, S.L., Kisha, T.J., Johnson, R.C. 2002. Incidence of introgression between cultivated alfalfa and wild relatives in northwestern Kazakhstan [abstract]. Crop Science Society of America. p. 173749.

SEED SAMPLING TECHNIQUES AND DIVERSITY MAINTENANCE IN OUTCROSSING GRASS SPECIES - (Other)

Johnson, R.C., Bradely, V.L., Evans, M.A. Seed sampling techniques and divserity maintenance in outcrossing grass species. Crop Science Society of America. 2002. Abstract p. 182030.

REDUCTION IN EFFECTIVE POPULATION SIZE DURING GRASS REGENERATION AND IMPROVEMENTS WITH SAMPLING - (Peer Reviewed Journal)

Johnson, R.C., Bradley, V.L., Evans, M.A. Reductions in effective populations size during grass regeneration and improvements with sampling. Crop Science. 2002. v. 42. p. 286-290.

EVALUATION AND CHARACTERIZATION OF GERMPLASM: AN EXAMPLE USING POA PRATENSIS - (Proceedings/Symposium)

Johnson, R.C., Johnston, W.J., Golob, C.T., Soreng, R.J. Evaluation and Characterization of Germplasm: An example using Poa pratensis. Proceeding Second International Sustainable Agriculture Conference for Food, Energy, and Industry. Beijing, China. 2002. p. 1051-1057.

EVALUATING GENETIC RESOURCES FOR SUSTAINABLE PRODUCTION OF POA PRATENSIS - (Proceedings/Symposium)

Johnson, R.C., Johnston, W.J., Golob, C.T. Evaluating genetic resources for sustainable production of Poa pratensis. Proceeding Second International Sustainable Agriculture Conference for Food, Energy, and Industry. Beijing, China. 2002. p. 1058-1064.

SEED PRODUCTION OF DIVERSE KENTUCKY BLUEGRASS GERMPLASM WITH VARIOUS RESIDUE MANAGEMENT SYSTEMS - (Other)

Johnston, W.J., Johnson, R.C., Golob, C.T., Sitton, J.W. Seed production of diverse Kentucky bluegrass germplasm with various residue management systems. Crop Science Society of America. 2002. Abstract p. 145953.

VARIANCES OF GENETIC DISTANCE MEASUREMENTS AMONG ALFALFA ACCESSIONS COMPARED FROM SEVERAL MOLECULAR MARKER TYPES - (Other)

Kisha, T.J., Johnson, R.C., Skinner, D.Z., Greene, S.L. Variances of genetic distance measurements among alfalfa accessions compared from several molecular marker types. Crop Science Society of America. 2002. Abstract p. 175620.

EVALUATION OF THE USDA CORE SAFFLOWER COLLECTION FOR SEVEN QUANTITATIVE TRAITS - (Proceedings/Symposium)

Johnson, R.C., P.B. Ghorpade, and V.L. Bradley. 2001. Evaluation of the USDA core safflower collection for seven quantitative traits. Proceedings of the Vth International Safflower Conference, Williston, North Dakota, Sidney, Montana, USA. 2001. p. 149-152.

MANAGING THE U.S. SAFFLOWER COLLECTION - (Proceedings/Symposium)

Bradley, V.L., Johnson, R.C. Managing the U.S. safflower collection. In Proceedings of the Vth International Safflower Conference, Williston, North Dakota, Sidney, Montana, USA. 2001. p. 143-147

AN ASSESSMENT OF GRASS REGENERATION NURSERIES AT THE WESTERN REGIONAL PLANT INTRODUCTION STATION - (Proceedings/Symposium)

Bradley, V.L., Johnson, R.C. An assessment of grass regeneration nurseries at the Western Regional Plant Introduction Station, 1994-1997. In Proceedings of the XIX International Grasslands Congress, Sao Pedro, Sao Paulo, Brasil. 2001. p. 883-884.

IMPROVING EFFECTIVE POPULATION SIZE DURING GRASS SEED REGENERATION - (Other)

Johnson, R.C., Bradley, V.L., Evans, M.A. Improving efffective population size during grass seed regeneration. Crop Science Society of America. 2001. Abstract p. 144248.

COMPARISON OF MOLECULAR MARKER TYPES FOR CHARACTERIZATION OF ALFALFA ACCESSIONS - (Other)

Kisha, T.J., R.C. Johnson, D.Z. Skinner, and S.L. Greene. Comparison of molecular markers types for characterization of alfalfa accessions. Crop Science Society of America. 2001. Abstract p. 200136

POA ANNUA DIVERSITY ON GOLF COURSE GREENS IN THE PACIFIC NORTHWEST, USA - (Peer Reviewed Journal)

Poole, G.J., Johnston, W.J., Johnson, R.C. Poa annua diversity on golf course greens in the Pacific Northwest, USA. International Turfgrass Science Journal. 2001. v.9.p.192-197.

DIVERSITY OF GREENS-TYPE ANNUAL BLUEGRASS IN THE PACIFIC NORTHWEST - (Other)

Poole, G.J., Johnston, W.J., Johnson, R.C. Diversity of greens-type annual bluegrass in the Pacific Northwest. Crop Science Society of America. 2001. Abstract p. 151948.

MEDICS (MEDICAGO L.) - (Other)

Prosperi, J-M., Auricht, G.C., Genier, G., Johnson, R.C. Medics (Medicago L.) In N. Maxted and S. Bennett (ed.) Plant Genetic Resources of Legumes in the Mediterranean. Kluwer, Dordrecht, the Netherlands. 2001. p. 99-114.

MEDICS (MEDICAGO L.) - (Other)

Prosperi, J-M., Auricht, G.C., Genier, G., Johnson, R.C. Medics(Medicago L.) In N. Maxted and S. Benett (ed.) Plant Genetic Resources of Legumes in the Mediterranean. Kluwer, Dordrecht, the Netherlands. 2001. p. 99-114.