Publications

Cucumis zambianus (Cucurbitaceae): A New Species from Northwestern Zambia - (Peer Reviewed Journal)

(01-May-08)

2008 Update: The USDA Sunflower Collection at the North Central Regional Plant Introduction Station, Ames, Iowa, USA - (Proceedings/Symposium)

Marek, L., Block, C.C., Gardner, C.A. 2008. 2008 update: The USDA sunflower collection at the North Central Regional Plant Introduction Station, Ames, Iowa, USA. In: Proceedings of the 17th International Sunflower Conference, June 8-12, 2008, Cordoba, Spain. p. 735-740.

Gene banks offer breeders access to germplasm: Germplasm collections help to preserve genetic diversity - (Trade Journal)

Robbins, J., Widrlechner, M.P., Olsen, R.T., Reed, S.M., Meerow, A.W., Hummer, K.E., Bretting, P.K., Allenstein, P., Krautmann, M. 2008. Gene banks offer breeders access to germplasm: Germplasm collections help to preserve genetic diversity. Nursery Management and Production. 24(5):53-58.

Phylogenetic, morphological, and chemotaxonomic incongruence in the North American endemic genus Echinacea (Moench) - (Peer Reviewed Journal)

Flagel, L.E., Rapp, R.A., Grover, C.E., Widrlechner, M.P., Hawkins, J., Grafenberg, J.L., Álvarez Fernández, I., Young Chung, G., Wendel, J.F. 2008. Phylogenetic, morphological, and chemotaxonomic incongruence in the North American endemic genus Echinacea (Moench). American Journal of Botany. 95:756-765.

Resistance in Cucumis melo germplasm to Pseudoperonospora cubensis pathotypes - (Proceedings/Symposium)

Lebeda, A., Stepankova, J., Krskova, M., Widrlechner, M.P. 2007. Resistance in Cucumis melo germplasm to Pseudoperonospora cubensis pathotypes. Advances in Downy Mildew Research. 3:157-167.

Old and New Trends Influencing the Introduction of New Nursery Crops - (Proceedings/Symposium)

Widrlechner, M.P. 2007. Old and New Trends Influencing the Introduction of New Nursery Crops. In: Janick, J. and Whipkey, A., editors. Issues in New Crops and New Uses. 2006 AAIC Annual Meeting and Sixth New Crops Symposium, October 14-18, 2006, San Diego, California. p. 237-245

Protocols to determine pollination requirements and optimal pollinators for plant genetic resource regeneration - (Proceedings/Symposium)

Widrlechner, M.P., Richards, K.W. 2007. Protocols to determine pollination requirements and optimal pollinators for plant genetic resource regeneration. In: Proceedings of the 9th International Pollination Symposium on Plant-Pollinator Relationships - Diversity in Action. p. 58-59.

While they were asleep: Do seeds after-ripen in cold storage? Experiences with Calendula - (Proceedings/Symposium)

Widrlechner, M.P. 2007. While they were asleep: Do seeds after-ripen in cold storage? Experiences with Calendula. International Plant Propagators Proceedings. 56:377-382.

Regeneration of self-compatible Pimpinella plants benefits from the addition of fly pollinators - (Proceedings/Symposium)

Reitsma, K.R., Clark, L.C., Mcclurg, S.G., Hanlin, S.J., Brenner, D.M., Widrlechner, M.P. 2007. Regeneration of self-compatible Pimpinella plants benefits from the addition of fly pollinators. In: Proceedings of the 9th International Pollination Symposium on Plant-Pollinator Relationships - Diversity in Action. p. 144-145.

Greenhouse evaluation of wild sunflower species for resistance to Sclerotinia wilt - (Abstract)

Block, C.C., Gulya Jr, T.J., Marek, L.F. 2007. Greenhouse evaluation of wild sunflower species for resistance to Sclerotinia wilt [abstract]. American Phytopathological Society Annual Meeting. 97:S11.

Molecular characterization of Stenocarpella maydis based on nuclear ribosomal Internal Transcribed Spacer regions between the 18S and 28S nuclear rRNA gene sequences - (Abstract)

Fessehaie, A., Block, C.C., Shepherd, L.M., Misra, M.K. 2007. Molecular characterization of Stenocarpella maydis based on nuclear ribosomal Internal Transcribed Spacer regions between the 18S and 28S nuclear rRNA gene sequences [abstract]. American Phytopathological Society Annual Meeting. 97:S35.

Quantitative TaqMan real-time PCR assay for Stenocarpella maydis, the causal agent of Diplodia ear and stalk rot of maize - (Abstract)

Fessehaie, A., Block, C.C., Shepherd, L.M., Misra, M.K. 2007. Quantitative TaqMan real-time PCR assay for Stenocarpella maydis, the causal agent of Diplodia ear and stalk rot of maize [abstract]. American Phytopathological Society Annual Meeting. 97:S35.

Duplex TaqMan real-time PCR assay for quantitative detection of Pantoea stewartii subsp. stewartii and Stenocarpella maydis - (Abstract)

Fessehaie, A., Block, C.C., Shepherd, L.M., Misra, M.K. 2007. Duplex TaqMan real-time PCR assay for quantitative detection of Pantoea stewartii subsp. stewartii and Stenocarpella maydis [abstract]. American Phytopathological Society Annual Meeting. 97:S35.

Evaluation of LNA, MGB and non-modified DNA probes to improve the detection limit of TaqMan real-time PCR assay for Pantoea stewartii subsp. stewartii - (Abstract)

Fessehaie, A., Block, C.C., Shepherd, L.M., Misra, M.K. 2007. Evaluation of LNA, MGB and non-modified DNA probes to improve the detection limit of TaqMan real-time PCR assay for Pantoea stewartii subsp. stewartii [abstract]. American Phytopathological Society Annual Meeting. 97:S35.

Safeguarding the Seeds of Native Plants - (Review Article)

Haidet, M., Byrne, M., Mccoy, J.H. 2007. Safeguarding the Seeds of Native Plants. Herbal Gram. 75:30-37.

MEASURING THE EFFECTIVENESS OF ISOLATION OF BRASSICA NAPUS L. ACCESSIONS DURING CAGED GERMPLASM REGENERATION - (Peer Reviewed Journal)

(15-Apr-07)

Insect Pollination at North Central Regional Plant Introduction Station ¿ Past and Present - (Proceedings/Symposium)

Hanlin, S.J., Mcclurg, S.G., Gardner, C.A. 2007. Insect Pollination at North Central Regional Plant Introduction Station ¿ Past and Present. In: Proceedings of the 9th International Pollination Symposium on Plant-Pollinator Relationships - Diversity in Action.

Novel Use of Alfalfa Leafcutting Bees (Megachile rotundata) for Plant Genetic Resource Conservation - (Proceedings/Symposium)

Hanlin, S.J., Mcclurg, S.G., Gardner, C.A. 2007. Novel Use of Alfalfa Leafcutting Bees (Megachile rotundata) for Plant Genetic Resource Conservation. In: Proceedings of the 9th International Pollination Symposium on Plant-Pollinator Relationships - Diversity in Action.

Assessing phenotypic, biochemical, and molecular diversity in coriander (Coriandrum sativum L.) germplasm - (Peer Reviewed Journal)

Lopez, P.A., Widrlechner, M.P., Simon, P.W., Rai, S., Boylston, T.D., Isbell, T., Bailey, T.B., Gardner, C.A., Wilson, L.A. 2008. Assessing phenotypic, biochemical, and molecular diversity in coriander (Coriandrum sativum L.) germplasm. Genetic Resources and Crop Evolution. 55:247-275

SCREENING CORIANDER GENE POOL FOR SPECIAL USES - (Proceedings/Symposium)

Lopez, P.A., Widrlechner, M.P., Simon, P.W., Rai, S., Bailey, T.B., Gardner, C.A. 2007. Screening coriander gene pool for special uses. In: Janick, J. and Whipkey, A., editors. Issues in New Crops and New Uses. 2006 AAIC Annual Meeting and Sixth New Crops Symposium, October 14-18, 2006, San Diego, California. p. 280-283.

The Other NPGS Maize Collection ¿ A Rich Source of Maize Genetic Diversity - (Abstract)

Millard, M.J., Gardner, C.A. 2007. The Other NPGS Maize Collection ¿ A Rich Source of Maize Genetic Diversity [abstract]. Maize Genetics Conference Abstracts.

Results of an exploration to expand the diversity of Daucus and Apiaceae germplasm collections - (Research Notes)

Widrlechner, M.P., Reitsma, K.R., Brenner, D.M. 2007. Results of an exploration to expand the diversity of Daucus and Apiaceae germplasm collections. The Umbelliferae Improvement Newsletter. 16:3-7.

Evaluation of Wild Helianthus Species for Resistance to Sclerotinia Stalk Rot - (Abstract)

Block, C.C., Gulya Jr, T.J., Marek, L.F. 2007. Evaluation of Wild Helianthus Species for Resistance to Sclerotinia Stalk Rot [abstract]. Proceedings of the International Sclerotinia Workshop.

REAL-TIME PCR ASSAY DEVELOPMENT FOR MULTIPLE MAIZE PATHOGENS - (Abstract)

Block, C.C., Fessehaie, A., Shepherd, L., Misra, M. 2006. Real-time PCR assay development for multiple maize pathogens [abstract]. American Seed Trade Association Conference Proceedings.

OLD AND NEW TRENDS INFLUENCING THE INTRODUCTION OF NEW NURSERY CROPS - (Abstract)

Widrlechner, M.P. 2006. Old and new trends influencing the introduction of new nursery crops [abstract]. Association for the Advancement of Industrial Crops Conference. p.39

SCREENING THE GENE POOL FOR SPECIAL USES IN CORIANDER - (Abstract)

Lopez, P.A., Widrlechner, M.P., Simon, P.W., Rai, S., Bailey, T.B., Gardner, C.A. 2006. Screening the gene pool for special uses in coriander [abstract]. Association for the Advancement of Industrial Crops Conference. p. 68

PRESERVATION OF MEDICINAL AND AROMATIC CROPS - (Abstract)

Mccoy, J.H. 2006. Preservation of medicinal and aromatic crops [abstract]. Association for the Advancement of Industrial Crops Conference. p. 5

INFLUENCE OF RHIZOME PROPAGULE SIZE ON YIELDS AND TRITERPENE GLYCOSIDE CONCENTRATIONS OF BLACK COHOSH (ACTAEA RACEMOSA L.) - (Peer Reviewed Journal)

Mccoy, J.H., Davis, J.M., Camper, N.D., Kahn, I., Bharathi, A. 2006. Influence of rhizome propagule size on yields and triterpene glycoside concentrations of black cohosh (Actaea Racemosa L.). HortScience. 42(1):61-64.

INDIVIDUAL AND POPULATION ASPECTS OF INTERACTIONS BETWEEN CUCURBITS AND PSEUDOPERONOSPORA CUBENSIS: PATHOTYPES AND RACES - (Proceedings/Symposium)

Lebeda, A., Widrlechner, M.P., Urban, J. 2006. Individual and Population Aspects of Interactions Between Cucurbits and Pseudoperonospora Cubensis: Pathotypes and Races. Cucurbitaceae Proceedings. p. 453-467.

YEAR-AND-A-HALF OLD, DRIED ECHINACEA SPP. ROOTS RETAIN CYTOKINE-MODULATING CAPABILITIES IN AN IN VITRO HUMAN OLDER ADULT MODEL OF INFLUENZA VACCINATION - (Peer Reviewed Journal)

Senchina, D.S., Wu, L., Flinn, G.N., Konopka, D.N., Mccoy, J.H., Widrlechner, M.P., Kohut, M.L. 2006. Year-and-a-half old, dried Echinacea spp. roots retain cytokine-modulating capabilities in an in vitro human older adult model of influenza vaccination. Planta Medica. 72:1207-1215.

THE EFFECTS OF YEARS AND PLANTING DATE ON PHENOLOGICAL AND MORPHOLOGICAL CHARACTERISTICS IN CORIANDER (CORIANDRUM SATIVUM L.) POPULATIONS - (Abstract)

Lopez, P.A., Widrlechner, M.P., Bailey, T.B., Gardner, C.A. 2006. The effects of years and planting date on phenological and morphological characteristics in coriander (Coriandrum sativum L.) populations [abstract]. Mexican Society of Plant Genetics Congress Book of Abstracts. p. 118.

CHARACTERIZATION OF FLOWERING TIME AND SSR MARKER ANALYSIS OF SPRING AND WINTER TYPE BRASSICA NAPUS L. GERMPLASM - (Peer Reviewed Journal)

Cruz, V.V., Luhman, R., Rife, C.L., Shoemaker, R.C., Marek, L.F., Brummer, E., Gardner, C.A. 2007. Characterization of flowering time and SSR marker analysis of spring and winter type Brassica napus L. germplasm. Euphytica. 153:43-57.

INSECT-MEDIATED SEED-SET EVALUATION OF 21 SOYBEAN LINES SEGREGATING FOR MALE STERILITY AT 10 DIFFERENT LOCI - (Peer Reviewed Journal)

Ortiz-Perez, E., Horner, H.T., Hanlin, S.J., Palmer, R.G. 2006. Insect-mediated seed-set evaluation of 21 soybean lines segregating for male sterility at 10 different loci. Euphytica. 152:351-360.

ANALYSIS OF BULKED AND REDUNDANT ACCESSIONS OF BRASSICA GERMPLASM USING ASSIGNMENT TESTS OF MICROSATELLITE MARKERS - (Peer Reviewed Journal)

Cruz, V.V., Nason, J.D., Luhman, R., Marek, L.F., Shoemaker, R.C., Brummer, E., Gardner, C.A. 2006. Analysis of bulked and redundant accessions of Brassica germplasm using assignment tests of microsatellite markers. Euphytica. 152:339-349.

UNDERSTANDING BIOACTIVITY AND METABOLITE DIVERSITY IN ST. JOHN'S WORT AND RELATED SPECIES - (Abstract)

Hillwig, M., Wurtele, E., Hammer, K., Birt, D., Maury, W., Price, J., Mccoy, J.H. 2006. Understanding bioactivity and metabolite diversity in St. John's Wort and related species [abstract]. The Second Scientific Meeting of the Metabolomics Society. 151:106.

A DIAGNOSTIC REAL-TIME TAQMAN PCR ASSAY FOR THE DETECTION OF PANTOEA STEWARTII SUBSP. STEWARTII IN CORN SEED - (Abstract)

Fessehaie, A., Shepherd, L.M., Block, C.C. 2006. A Diagnostic Real-Time Taqman PCR Assay for the Detection of Pantoea Stewartii Subsp. Stewartii in Corn Seed [abstract]. American Phytopathological Society Annual Meeting. 96:S35.

OPTIMIZATION OF BLOTTER TEST PROTOCOL FOR BLACKLEG DETECTION IN BRASSICA SEED - (Abstract)

Shepherd, L.M., Block, C.C. 2006. Optimization of blotter test protocol for blackleg detection in brassica seed [abstract]. American Phytopathological Society Annual Meeting. 96:S107.

LIQUID NITROGEN CONTROLS SEED-BORNE CHALCIDS WITHOUT REDUCING GERMINATION IN CORIANDER SEEDS - (Peer Reviewed Journal)

Kovach, D.A., Mcclurg, S.G., Widrlechner, M.P., Brenner, D.M., Gardner, C.A. 2006. Liquid nitrogen controls seed-borne chalcids without reducing germination in coriander seeds. Journal of Seed Science and Technology. 34:669-679.

GERMPLASM COLLECTION MAINTENANCE AND OPERATIONS - INCREASING THE VALUE OF PLANT GERMPLASM - (Proceedings/Symposium)

Gardner, C.A. 2006. Germplasm Collection Maintenance and Operations - Increasing the Value of Plant Germplasm. American Society of Horticulture Science Meeting. HortScience. 41(4): 935

UTILIZING THE NPGS (NATIONAL PLANT GERMPLASM SYSTEM) FOR MEDICINAL PLANT RESEARCH - (Abstract)

Mccoy, J.H., Widrlechner, M.P. 2006. Utilizing the NPGS (National Plant Germplasm System) for medicinal plant research [abstract]. American Society of Horticulture Science Meeting. HortScience. 41:961.

DEMAND FOR GENETIC RESOURCES AND THE U.S. NATIONAL PLANT GERMPLASM SYSTEM - (Peer Reviewed Journal)

Day Rubenstein, K., Smale, M., Widrlechner, M.P. 2006. Demand for Genetic Resources and the U.S. National Plant Germplasm System. Crop Science. 46:1021-1031

EVALUATION OF INSECT-MEDIATED SEED-SET AMONG MALE-STERILE SOYBEAN LINES SEGREGATING FOR THE MS6 ALLELE - (Peer Reviewed Journal)

Ortiz-Perez, E., Horner, H.T., Hanlin, S.J., Palmer, R.G. 2006. Evaluation of insect-mediated seed-set among male-sterile soybean lines segregating for the ms6 allele. Field Crops Research. 97:353-362

A COMPREHENSIVE ECHINACEA GERMPLASM COLLECTION LOCATED AT THE NORTH CENTRAL REGIONAL PLANT INTRODUCTION STATION, AMES, IOWA - (Proceedings/Symposium)

Mccoy, J.H., Widrlechner, M.P., Carstens, J.D. 2006. A comprehensive Echinacea germplasm collection located at the North Central Regional Plant Introduction Station, Ames, Iowa. International Plant Propagators Society Proceedings. 55:439-440.

DISEASE AND PEST MANAGEMENT OF MEDICINAL CROPS - (Proceedings/Symposium)

Mccoy, J.H. 2005. Disease and pest management of medicinal crops. In: Morales, M.R., Foster, J., editors. Proceedings of the Third Annual Symposium Medicinal and Aromatic Plants, September 25, 2004, Beaver, West Virginia. p. 27-35.

CUCURBITS (CUCURBITACEAE; CUCUMIS SPP., CUCURBITA SPP., CITRULLUS SPP.) - (Book/Chapter)

Lebeda, A., Widrlechner, M.P., Staub, J.E., Ezura, H., Zalapa, J., Kristkova, E. 2006. Cucurbits (Cucurbitaceae; Cucumis spp., Cucurbita spp., Citrullus spp.). In: Singh, R.J., editor. Genetic Resources, Chromosome Engineering, and Crop Improvement Series, Volume 3 - Vegetable Crops. Boca Raton, FL: CRC Press. Chapter 8. p. 273-377.

A COMPREHENSIVE ECHINACEA GERMPLASM COLLECTION LOCATED AT THE NORTH CENTRAL REGIONAL PLANT INTRODUCTION STATION, AMES, IA - (Proceedings/Symposium)

Mccoy, J.H., Widrlechner, M.P., Carstens, J.D. 2005. A comprehensive echinacea germplasm collection located at the North Central Regional Plant Introduction Station, Ames, Ia. Symposium Proceedings. p. 5.

RUBUS CHAPTER - (Book/Chapter)

(02-Jun-05)

RHIZOME PROPAGATION OF ACTAEA RACEMOSA L. (BLACK COHOSH) AND ANALYSIS OF ASSOCIATED TRITERPENE GLYCOSIDES - (Abstract)

Mccoy, J.H., Camper, N.D., Kahn, I.A. 2005. Rhizome propagation of actaea racemosa l. (black cohosh) and analysis of associated triterpene glycosides. International Congress on Natural Products. p. 585.

SELECTION DURING CULTIVATION RESULTS IN REDUCED SEED DORMANCY IN ECHINACEA PURPUREA (L.) MOENCH - (Peer Reviewed Journal)

Qu, L., Wang, X., Scalzo, R., Widrlechner, M.P., Davis, J.M., Hancock, J.F. 2005. Selection During Cultivation Results in Reduced Seed Dormancy in Echinacea Purpurea (L.) Moench. HortScience. 40(6):1843-1845.

QUANTIFYING THE FEEDING PERIODS REQUIRED BY CORN FLEA BEETLES TO ACQUIRE AND TRANSMIT PANTOEA STEWARTII - (Peer Reviewed Journal)

Menelas, B., Block, C.C., Esker, P.D., Nutter, F.W. 2006. Quantifying the Feeding Periods Required by Corn Flea Beetles to Acquire and Transmit Pantoea Stewartii. Plant Disease. 90:319-324

EVALUATION OF WILD HELIANTHUS ANNUUS FOR RESISTANCE TO SEPTORIA LEAF BLIGHT. - (Proceedings/Symposium)

Block, C.C. 2005. Evaluation of wild helianthus annuus for resistance to septoria leaf blight. Proceedings Sunflower Research Workshop. Available: http://www.sunflowernsa.com/research/research-workshop/documents/Block_Septoria_05.PDF

A COMPREHENSIVE ECHINACEA GERMPLASM COLLECTION LOCATED AT THE NORTH CENTRAL REGIONAL PLANT INTRODUCTION STATION, AMES, IOWA. - (Abstract)

McCoy, J.H., Widrlechner, M.P., Carstens, J.D. 2005. A comprehensive Echinacea germplasm collection located at the North Central Regional Plant Introduction Station, Ames, Iowa. HortScience. 40:1063.

MEDICINAL PLANT DISEASE LIST - (Book/Chapter)

Mccoy, J.H. 2005. Medicinal plant disease list. In: Persons, W.S., Davis, J.M., editors. Growing and Marketing Ginseng, Goldenseal & Other Woodland Medicinals. Bright Mountain Books. Fairview, NC. p. 423-432.

GERMPLASM RESOURCES FOR NEW CROPS RESERACH: NORTH CENTRAL REGIONAL PLANT INTRODUCTION STATION, AMES, IA U.S.A - (Abstract)

Marek, L.F., Brenner, D.M., Mccoy, J.H., Gardner, C.A. 2005. Germplasm Resources for New Crops Research: North Central Regional Plant Introduction Station, Ames, IA U.S.A. Proceedings Association for Advancement of Industrial Crops (AAIC) Annual Meeting.

PHENOTYPIC RECURRENT SELECTION FOR INCREASED HYBRID SOYBEAN SEED PRODUCTION - (Proceedings/Symposium)

Ortiz-Perez, E., Cervantes-Martinez, I., Wiley, H., Hanlin, S.J., Horner, H.T., Davis, W.H., Palmer, R.G. 2004. Phenotypic recurrent selection for increased hybrid soybean seed production. American Seed Trade Association Conference Proceedings, December 7-10, 2004, Chicago, Illinois. p. 13.

POWDERY MILDEW RESISTANCE IN THE U.S. NATIONAL PLANT GERMPLASM SYSTEM CUCUMBER COLLECTION - (Peer Reviewed Journal)

Block, C.C., Reitsma, K.R. 2005. Powdery mildew resistance in the U.S. National Plant Germplasm System cucumber collection. Hortscience. 40:416-420.

IDENTIFICATION OF USEFUL TROPICAL X TEMPERATE GEM GERMPLASM FOR CORN PRODUCTION IN SEMI-ARID REGIONS - (Abstract)

Xu, W., Blanco, M.H. 2004. Identification of useful tropical x temperate gem germplasm for corn production in semi-arid regions. American Society of Agronomy.

INSIGHTS INTO WOODY PLANT ADAPTATION AND PRACTICAL APPLICATIONS - (Proceedings/Symposium)

Widrlechner, M.P. 2004. Insights into woody plant adaptation and practical applications. Metropolitan Tree Improvement Alliance Proceedings, June 18, 2004, Lisle, IL. METRIA Proceedings Volume 13, published on the Internet at: http://www.ces.ncsu.edu/fletcher/programs/nursery/metria/metria13/widrlechner/index.html

THE SUNFLOWER COLLECTION AT THE NORTH CENTRAL REGIONAL PLANT INTRODUCTION STATION. - (Proceedings/Symposium)

Marek, L.F., Larsen, I.D., Block, C.C., Gardner, C.A. 2004. The sunflower collection at the North Central Regional Plant Introduction Station. Sunflower International Conference Proceedings. p. 761-765.

MORPHOLOGICAL AND CHEMICAL VARIABILITY IN CORIANDER GERMPLASM - (Abstract)

Lopez, P., Widrlechner, M.P. 2004. Morphological and chemical variability in coriander germplasm. Association for the Advancement of Industrial Crops Conference, September 19-23, Minneapolis, MN. AAIC Abstracts p. 30.

GERMPLASM ACQUISITION FROM CONCEPTION TO PRODUCTS - (Other)

Widrlechner, M.P. 2005. Germplasm acquisition from conception to products. (Introduction to Workshop Proceddings). HortScience. 40:2096

DEVELOPMENT OF WILD HELIANTHUS ANNUUS POPULATIONS WITH MULTIPLE DISEASE RESISTANCE - (Abstract)

Block, C.C. 2004. Development of wild helianthus annuus populations with multiple disease resistance. American Phytopathological Society. 94:S8.

A LOGNORMAL DISTRIBUTION OF PHYTOPATHOGENIC BACTERIA IN CORN, COWPEA, TOMATO AND WATERMELON SEEDS. - (Abstract)

Walcott, R.R., Sanders, F.H., Block, C.C. 2004. A lognormal distribution of phytopathogenic bacteria in corn, cowpea, tomato and watermelon seeds. American Phytopathological Society. 94:S34.