Marty Williams Lab, USDA-ARS


Saballos, A. and Williams, M.M.II. 2024. Genome wide association study identifies candidate loci with major contributions to the genetic control of pod morphological traits in snap bean. J. Amer. Hort. Sci. 149(1):1–14. 

Dhaliwal, D. and Williams, M.M.II. 2024. Sweet corn yield prediction using machine learning models and field-level data. Prec. Ag.

Williams, M.M.II, Hausman, N.E., Saballos, A., Landau, C.A., Brooks, M.D., Flannery, P., Tracy, W.F., Thompson, C.J. 2023. First report of severe tolpyralate sensitivity in corn (Zea mays) discovers a novel genetic factor conferring crop response to a herbicide. Pest Mag. Sci.

Landau, C.A., Bradley, K.W., Burns, E., Flessner, M., Gage, K., Hager, A.G., Ikley, J., Jha, P., Johnson, P.O., Johnson, W., Lancaster, S., Legleiter, T., Lingenfelter, D., Loux, M., Miller, E., Norsworthy, J., Owen, M., Nolte, S., Sarangi, D., Sikkema, P.H., Sprague, C., VanGessel, M., Werle, R., Young, B., Williams, M.M. II. 2023. The silver bullet that wasn’t: rapid agronomic weed adaptations to glyphosate in North America. PNAS Nexus 2:1-12.

Young, S.L., et al. 2023. Agricultural Research Service Weed Science Research: Past, Present, and Future. Weed Sci. 71:312-327. doi:10.1017/wsc.2023.31. 

Sullivan, M., Williams, M.M.II, Studer, A.J. 2023. Genetic diversity of North American popcorn germplasm and the effect of population structure on nicosulfuron response. Crop Sci. 1-19.

Dhaliwal, D. and Williams, M.M.II. 2023. An outlook on processing sweet corn production from the last three decades (1990s-2010s). HortScience. 58(7):792-796.

Williams, M.M.II, Saballos, A., Peachey, R.E. 2023. Snap bean response to pyroxasulfone in a diversity panel. Weed Technology doi:

Williams, M.M.II, Dhaliwal, D., Hausman, N.E. 2023. No evidence sowing date influences optimum plant density of sweet corn grown in the Midwest U.S. HortScience 58(3):301-306.

Rai, T., Lee, N., Williams, M.M.II, Davis, A., Villamil, M., Dokoohaki, H. 2023. Probabilistic assessment of cereal rye cover crop impacts on regional crop yield and soil carbon. Agriculture 13:176. 

Jhala, A.J., Kumar, V., Yadav, R., Jha, P., Williams, M.M.II, Hausman, N.E., Dayan, F., Burton, P.M., Dale, R. 2023. 4-Hydroxyphenylpyruvate dioxygenase (HPPD) inhibiting herbicides: past, present, and future. Weed Technol.  doi: 10.1017/ wet.2022.79.

Dhaliwal, D., Williams, M.M.II. 2022. Evidence of sweet corn yield losses from rising temperatures. Sci. Rep 12:18218 

Lowry, C.J., Matlaga, D.P., West, N.M., Williams, M.M.II, Davis, A.S. 2022. Estimating local eradication costs for invasive Miscanthus populations throughout eastern and midwestern United States. Invasive Plant Sci. Manag 15: 115-121. 

Williams, M.M.II, Zhang, B., Fu, X., Ross, J. 2022. Editorial: everything edamame: biology, production, nutrition, sensory and economics. Front. Plant Sci. 13:976008. doi: 10.3389/fpls.2022.976008.

Saballos, A., Soler-Garzon, A., Brooks, M., Hart, P.J., Lipka, A.E., Miklas, P., Peachey, R.E., Tranel, P.J., Williams, M.M.II. 2022. Multiple genomic regions govern tolerance to sulfentrazone in snap bean (Phaseolus vulgaris L.). Frontiers in Agronomy. 4:869770. doi: 10.3389/fagro.2022.869770.

Landau, C.A., Hager, A.G., Williams, M.M.II. 2022. Deteriorating weed control and variable weather portends greater soybean yield losses in the future. Science of the Total Environment.

Landau, C.A., Bernards, M.L., Hager, A.G., Williams, M.M.II. 2022. Significance of application timing, formulation, and cytochrome P450 genotypic class on sweet corn response to dicamba. Weed Science. 

Dhaliwal, D.S., Ainsworth, L.A., Williams, M.M.II. 2021. Historical trends in sweet corn plant density tolerance using era hybrids (1930-2010s). Frontiers in Plant Science 12:707852. doi: 10.3389/fpls.2021.707852.

Landau, C.A., Hager, A.G., Williams, M.M.II. 2021. Diminishing weed control exacerbates maize yield loss to adverse weather. Global Change Biology.

Choe, E., Ko, Y., Williams, M.M.II. 2021. Transcriptional analysis of sweet corn hybrids in response to crowding stress. PLoS ONE 16(6): e0253190.

Williams, M.M.II, Hausman, N.E., Dhaliwal, D.S., Grift, T.E., Bohn, M.O. 2021. Economic optimum plant density of sweet corn does not increase root lodging incidence. Crop Sci. DOI: 10.1002/csc2.20546.

Landau, C.A., Hager, A.G., Tranel, P.J., Davis, A.S., Martin, N.F., Williams, M.M.II. 2021. Future efficacy of preemergence herbicides in corn (Zea mays) is threatened by more variable weather. Pest Management Sci.

Korres, N.E., Kitis, E., Hausman, N.E., Moody, J.L., Williams, M.M.II. 2020. Integrated weed management strategies with cereal rye mulch in processing vegetable legumes. Agron. J. DOI: 10.1002/agj2.20349.

Korres, N.E., Norsworthy, J.K., Mauromoustakos, A., Williams, M.M.II. 2020. Soybean density and Palmer amaranth (Amaranthus palmeri) establishment time: effects on weed biology, crop yield, and economic returns. Weed Sci. DOI: 10.1017/wsc.2020.41.

Choe, E. and Williams, M.M.II. 2020. Expression and comparison of sweet corn CYP81A9s in relation to nicosulfuron sensitivity. Pest Management Science.

Dhaliwal, D.S. and Williams, M.M.II. 2020. Economically optimal plant density for machine-harvested edamame. HortScience.

Kepler, R.M., Schmidt, D.J.E., Yarwood, S.A., Cavigelli, M.A., Reddy, K.N., Duke, S.O., Bradley, C.A., Williams, M.M.II, Buyer, J.S., Maul, J.E. 2020. Soil microbial communities in diverse agroecosystems exposed to the herbicide glyphosate. Applied and Environmental Microbiology. DOI: 10.1128/AEM.01744-19. 

Dhaliwal, D.S. and Williams, M.M.II. 2020. Understanding variability in optimum plant density and recommendation domains for crowding stress tolerant processing sweet corn. PLOS ONE 15(2): e0228809.

Dhaliwal, D.S. and Williams, M.M.II. 2019. Optimum plant density for crowding stress tolerant processing sweet corn. PLOS ONE 14(9): e0223107.

Leguizamon, E.S., Ferrari, G., Williams, M.M.II, Burgos, N.R., Travlos, I.T., and Korres, N.E. 2019. Response of annual weeds to glyphosate: evaluation and optimization of application rate based on fecundity-avoidance biomass threshold criterion. Agronomy 9, 851; doi:10.3390/agronomy9120851.

Williams, M.M.II, Moody, J.L., and Hausman, N.E. 2019. Vegetable soybean tolerance to flumioxazin-based treatments for waterhemp control is similar to grain-type soybean. Weed Technology. 33:530-534. doi:10.1017/wet.2019.15

Crawford, L.E. and Williams M.M.II. 2019. Planting depth and seed size affect edamame emergence individually. HortScience 54:92-94.

Crawford, L.E. and Williams, M.M.II. 2018. Role of edamame (Glycine max) seed size in early-season crop-weed interactions. Weed Sci. 66:746-751. doi:10.1017/wsc2018.46 

Reddy, K.N., Cizdziel, J.V., Williams, M.M.II, Maul, J.E., Rimando, A.M., and Duke, S.O. 2018. Glyphosate resistance technology has minimal or no effect on maize mineral content and yield. Journal of Agricultural and Food Chemistry. 66:10139-10146.

Crawford, L.E., Williams, M.M.II, and Wortman, S.E. 2018. An early-killed rye (Secale cereale) cover crop has potential for weed management in edamame (Glycine max). Weed Sci. doi: 10.1017/wsc.2018.5 

Williams, M.M.II. 2018. Effect of plant density and hybrid on the reproductive sink of sweet corn. HortScience. 53:28-32.

Williams, M.M.II. 2017. Genotype adoption in processing sweet corn relates to stability in case production. HortScience. 52:1748-1754.

Williams, M.M.II and Bradley, C.A. 2017. Fludioxonil + mefenoxam seed treatment improves edamame seedling emergence. HortTechnology 27:846-851.

Duke, S.O., Rimando, A.M., Reddy, K.N., Cizdziel, J.V., Bellaloui, N., Shaw, D.R., Williams, M.M.II, and Maul, J.E. 2017. Lack of transgene and glyphosate effects on yield, and mineral and amino acid content of glyphosate-resistant soybean. Pest Manag. Sci. DOI 10.1002/ps.4625. 

Tomasek, B., Williams, M.M.II, and Davis, A.S. 2017. Climate change impacts on field workability and drought risk in the northern U.S. corn belt. PLoS ONE 12(2): e0172301. doi:10.1371/journal.pone.0172301.

Williams, M.M.II, Hausman, N.E., Moody, J.L. 2017. Vegetable soybean (Glycine max) tolerance to pyroxasulfone. Weed Technol. 31:416-420.

Boydston, R.A. and Williams, M.M.II. 2016. No-till snap bean performance and weed response following rye and vetch cover crops. Renewable Agriculture and Food Systems 31:281-287.

Arslan, Z.F., Williams, M.M.II, Becker, R., Fritz, V.A., Peachey, E., and Rabaey, T.L. 2016. Alternatives to atrazine for weed management in processing sweet corn. Weed Science. 64:531-539.

Choe, E., J. Drnevich, and M.M. Williams II. 2016. Identification of crowding stress tolerance co-expression networks involved in sweet corn yield. PLOS ONE. DOI: 10.1371/journal.pone.0147418.

​Williams, M.M.II, C.A. Bradley, S.O. Duke, J.E. Maul, and K.N. Reddy. 2015. Goss's wilt incidence in sweet corn is independent of transgenic traits and glyphosate. HortScience. 50:1791-1794

​Williams, M.M. II. 2015. Relationships among phenotypic traits of sweet corn and tolerance to crowding stress. Field Crops Res. 185:45-50

Williams, M.M.II. 2015. Managing weeds in commercial edamame production: current options and their outcomes. Weed Sci. 63:954-961

Boydston, R.A. and Williams, M.M.II. 2015. Sweet corn hybrid tolerance to weed competition under three weed management levels. Renewable Agriculture and Food Systems. 31:281-287.

Williams, M.M. II. 2015. Identifying crowding stress-tolerant hybrids in processing sweet corn. Agron. J. 107:1782-1788.​

Williams, M.M. II. 2015. Phenomorphological characterization of vegetable soybean germplasm lines for commercial production. Crop Sci. 55:1274-1279.

Tomasek, B.J., M.M. Williams II, and A.S. Davis. 2015. Optimization of agricultural field workability predictions for improved risk management. Agron. J. 107:627-633.

​Williams, M.M. II and R.L. Nelson. 2014. Vegetable soybean tolerance to bentazon, fomesafen, imazamox, linuron, and sulfentrazone. Weed Technol. 28:601-607.

Williams, M.M. II. 2014. A bioenergy feedstock/vegetable double-cropping system. Industrial Crops and Products. 59: 223-227.

Choe, E., M.M. Williams II, R.A. Boydston, J.L. Huber, S.C. Huber, and J.K. Pataky. 2014. Photosystem II-inhibitors play a limited role in sweet corn response to 4-hydroxyphenyl pyruvate dioxygenase-inhibiting herbicides. Agron. J. 106:1317-1323.​

Williams, M.M.II. 2014. Few crop traits accurately predict variables important to productivity of processing sweet corn. Field Crops Research. 157:20-26.


Williams, M.M.II and R. A. Boydston. 2013. Crop seeding level: implications for weed management in sweet corn. Weed Sci. 61:437-442. 

Williams, M.M.II and R.A. Boydston. 2013. Intraspecific and interspecific competition in sweet corn. Agron. J. 105:503-508.

Brainard, D.C., E. Haramoto, M.M. Williams II, and S. Mirsky. 2013. Towards a no-till no-spray future? Introduction to a symposium on nonchemical weed management for reduced-tillage cropping systems. Weed Technol. 27:190-192.

Williams, M.M.II and J.K. Pataky. 2012. Maize dwarf mosaic can reduce weed suppressive ability of sweet corn. Weed Science 60:577-582.

Williams, M.M.II. 2012. Agronomics and economics of plant population density on processing sweet corn. Field Crops Research 128:55–61.

Williams, M.M.II, J.K. Pataky. 2012. Interactions between maize dwarf mosaic and weed interference on sweet corn. Field Crops Research 128:48–54.

Williams, M.M.II, B.J. Schutte, and Y.F. So. 2012. Maternal corn environment influences wild-proso millet (Panicum miliaceum) seed characteristics. Weed Science 60:69-74.

Pataky, J.K., M.M.II Williams, J.M. Headrick, C. Nankam, L.J. du Toit, P.M. Michener. 2011. Observations from a quarter century of evaluating reactions of sweet corn hybrids to disease nurseries. Plant Disease 95:1492-1506.

Williams, M.M.II, R.A. Boydston, R.E. Peachey, D. Robinson. 2011. Significance of atrazine as a tank-mix partner with tembotrione. Weed Technol. 25:299-302.

Williams, M.M.II, R.A. Boydston, R.E. Peachey, D. Robinson. 2011. Performance consistency of reduced atrazine use in sweet corn. Field Crops Research 121:96–104.

Williams, M.M.II and J.K. Pataky. 2010. Factors affecting differential sweet corn sensitivity to HPPD-inhibiting herbicides. Weed Sci. 58:289-294.

Williams, M.M.II. 2010. Biological significance of low weed population densities on sweet corn. Agron. J. 102:464-468. 

Williams, M.M.II, C.M. Boerboom, and T. Rabaey. 2010. Significance of atrazine in sweet corn weed management systems. Weed Technol. 24:139-142.

Meyer, M., J.K. Pataky, and M.M. Williams II. 2010. Genetic factors influencing adverse effects of mesotrione and nicosulfuron on sweet corn yield. Agron. J. 102:1138-1144.

So, Y. F., M.M. Williams II, J.K. Pataky, and A.S. Davis. 2009. Principal canopy factors of sweet corn and relationships to competitive ability with wild-proso millet (Panicum milliaceum). Weed Science 57:296–303.

Williams, M.M.II. 2009. With-in season changes in the residual weed community and crop tolerance to interference over the long planting season of sweet corn.  Weed Science. 57:319–325.

Williams, M.M.II, A.S. Davis, T. Rabaey, C. Boerboom. 2009. Linkages among agronomic, environmental and weed management characteristics in North American sweet corn. Fields Crops Research. 113:161-169. 

Pataky, J.K, M.M. Williams II, D.E. Riechers, and M.D. Meyer. A common genetic basis for cross-sensitivity to mesotrione and nicosulfuron in sweet corn hybrids and inbreds grown throughout North America.  JASHS. 134:252-260. 2009.

So, Y.F., M.M. Williams II, and J.K. Pataky. 2009. Wild-proso millet differentially affects canopy architecture and yield components of 25 sweet corn hybrids. HortScience. 44:408-412. 

Williams, M.M. II, T.L. Rabaey, and C.M. Boerboom. 2008. Residual weeds of processing sweet corn in the north central region. Weed Technol. 22:646-653. 

Williams, M.M. II . Sweet corn growth and yield responses to planting dates of the north central United States . 2008. HortScience. 43:1775-1779.

Williams, M.M. II , L.M. Wax, J.K. Pataky, and M.D. Meyer. 2008. Further evidence of a genetic basis for varied levels of injury to sweet corn hybrids from cytochrome P450-metabolized herbicides applied postemergence. HortScience. 43:2093-2097.

Pataky, J.K., M.D. Meyer, J.D. Bollman, C.M. Boerboom, and M.M. Williams II.  2008. Genetic basis for varied levels of injury to sweet corn hybrids from three cytochrome P-450 metabolized herbicides. Journal of the American Society for Horticultural Science 133:438-447. 

Williams, M.M. II and J.K. Pataky. 2008. Genetic basis of sensitivity in sweet corn to tembotrione. Weed Science 56:364-370.

Nordby, J.N., M.M. Williams II , J.K. Pataky, and D.E. Riechers. 2008. A common genetic basis in sweet corn inbred Cr1 for cross-sensitivity to multiple cytochrome P450-metabolized herbicides. Weed Science 56:376-382. 

Williams, M.M. II, R.A. Boydston., and A.S. Davis. 2008. Differential tolerance in sweet corn to wild-proso millet (Panicum miliaceum) interference. Weed Science 56:91-96.

Williams, M.M. II , R.A. Boydston, and A.S. Davis. 2008. Crop competitive ability contributes to herbicide performance in sweet corn. Weed Research 48:58-67. 

Williams, M.M. II., R.A. Boydston and A.S. Davis. 2007. Wild proso millet (Panicum miliaceum) suppressive ability among three sweet corn hybrids. Weed Science 55: 245-251.

Williams, M.M. II and J.L. Lindquist. 2007. Influence of planting date and weed interference on sweet corn growth and development. Agronomy Journal 99:1066–1072. 

Davis, A.S. and M.M. Williams II. 2007. Variation in wild proso millet fecundity in sweet corn has residual effects in snap bean. Weed Science 55:502–507.

Metzger, C., R. Boydston, H. Ferguson, M.M. Williams II , R. Zack, and D. Walsh. Interactions between population density of the Colorado potato beetle, Leptinotarsa decemlineata, and herbicide rate for suppression of solanaceous weeds. 10pp. Journal of Insect Science. 8: 40, available online: .

Williams, M.M. II, C.V. Ransom, and W.M. Thompson. 2007. Volunteer potato density influences critical time of weed removal in bulb onion. Weed Technology. 21:136-140.

Chee-Sanford, J.C., M.M. Williams II, A.S. Davis, and G. Sims. 2006. Do microorganisms influence seed bank dynamics? Weed Science 54:575-587.

Ortiz-Ribbing, L. and M.M. Williams II. 2006. Conidial germination and germ tube elongation of Phomopsis amaranthicola and Microsphaeropsis amaranthi on leaf surfaces of seven Amaranthus species: implications for biological control. Biological Control 38:356-362.  

Williams, M.M. II. 2006. Planting date influences critical period of weed control in sweet corn. Weed Science 54:928-933.  

Williams, M.M. II and J.B. Masiunas. 2006. Functional relationships between giant ragweed interference and sweet corn yield and ear traits. Weed Science. 54:948-953.

Williams, M.M. II, R.A. Boydston, and A.S. Davis. 2006. Canopy variation among three sweet corn hybrids and implications for light competition. HortScience 41:1449-1454.

Pataky, J.K., J.N. Nordby, M.M. Williams II, and D.E. Riechers. 2006. Inheritance of cross-sensitivity in sweet corn to herbicides applied postemergence. Journal of the American Society for Horticultural Science 131(6):744-751.  

Williams, M.M.II and R.A. Boydston. 2006. Volunteer potato interference in carrot. Weed Sci. 54:94-99. 

Williams, M.M. II, J.K. Pataky, J.N. Nordby, D.E .Riechers, C.L. Sprague, and J.B. Masiunas. 2005. Cross-sensitivity in sweet corn to nicosulfuron and mesotrione applied postemergence. HortScience 40:1801-1805.

Williams, M.M. II and R.A. Boydston. 2005. Alternative to handweeding volunteer potato in carrots. Weed Technology 19: 1050-1055. 

Williams, MM II, C.V. Ransom, W.M. Thompson. 2005. Duration of volunteer potato interference in bulb onion. Weed Science 53:62-68. 

Boydston, R.A. and M.M. Williams II. 2005. Managing volunteer potato in field corn with mesotrione and arthropod herbivory. Weed Technology 19:443-450. 

Davis, Adam S., J. Cardina, F. Forcella, G.A. Johnson, G. Kegode, J.L. Lindquist, E.C. Luschei, K.A. Renner,C.L. Sprague, M.M. Williams II. 2005. Environmental factors affecting seed persistence of annual weeds across the U.S. corn belt. Weed Sci. 53:860-868.

Ortiz-Ribbing, L. and M.M. Williams II. 2005. Potential of Phomopsis amaranthicola and Microsphaeropsis amaranthi, as bioherbicides for several weedy Amaranthus species. Crop Protection 25:39-46.

Williams, M.M. II, D.B. Walsh, and R.A. Boydston. 2004. Integrating arthropod herbivory and reduced herbicide use for weed management. Weed Science 52:1018-1025.

Williams, M.M. II, C.V. Ransom, and W.M. Thompson. 2004. Effect of volunteer potato density on dry bulb onion yield and quality. Weed Science 52:754-758.

Boydston, R.A. and M.M. Williams II. 2004. Combined effects of Aceria malherbae and herbicides on field bindweed growth. Weed Science 52:297-301.

Dille, J.A., M. Milner, J. Groeteke, D.A. Mortensen, and M.M. Williams II. 2003. How good is your weed map? A comparison of spatial interpolators. Weed Science 51:44-55.

Boydston, R.A. and M.M. Williams II. 2003. Effect of soil fumigation on volunteer potato (Solanum tuberosum) tuber viability. Weed Technology 17:352-357.

Williams, M.M. II and R.A. Boydston. 2002. Effect of shoot removal during tuberization on volunteer potato (Solanum tuberosum) tuber production. Weed Technology 16:617-619.

Williams, M.M. II, D.A.Mortensen, W.J. Waltman, and A.R. Martin. 2002. Spatial inference of herbicide bioavailability using a geographic information system. Weed Technology 16:603-611.

Gerhards, R.,M. Sökefeld, C. Timmermann, W. Kübauch, and M.M. Williams II. 2002. Site-specific weed control in maize, sugar beet, winter wheat and winter barley. Precision Agriculture 3:25-35.

Williams, M.M. II, D.A. Mortensen, A.R. Martin, and D.B. Marx. 2001. Within-field soil heterogeneity effects on herbicide-mediated crop injury and weed biomass. Weed Science 49:798-805.

Williams, M.M. II and D.A. Mortensen. 2001. Crop/weed outcomes from site-specific and uniform soil-applied herbicide applications. Precision Agriculture 2:377-388.

Williams, M.M. II, R. Gerhards, and D.A. Mortensen. 2001. Two-year weed seedling population responses to a postemergent method of site-specific weed management. Precision Agriculture 2:247-263.

Williams, M.M. II, D.A. Mortensen, and J.W. Doran. 2000. No-tillage soybean performance in cover crops for weed management in the western cornbelt. Journal of Soil and Water Conservation 55:79-84.

Williams, M.M. II, R. Gerhards, and D.A. Mortensen. 1999. Spatiotemporal outcomes of site-specific weed management in maize. Pages 897-906. in J.V. Stafford, ed. Precision Agriculture ’99. Sheffield, United Kingdom: Sheffield Academic Press.

Gerhards, R., M. Sökefeld, C. Timmermann, S. Reichart, W. Kühbauch, andM.M. Williams II. 1999. Results of a 4-year study on site-specific herbicide application. Pages 689-697. in J.V. Stafford, ed. Precision Agriculture ’99. Sheffield, United Kingdom: Sheffield Academic Press.

 Williams, M.M. II, D.A. Mortensen, and J.W. Doran. 1998. Assessment of weed and crop fitness in cover crop residues for integrated weed management. Weed Science 46:595-603.

Williams, M.M. II, J. Jordan, and C. Yerkes. 1995. The fitness cost of triazine resistance in Jimsonweed (Datura stramonium L.). American Midland Naturalist 133:131-137.