Projects

Irrigation and Precision Management Strategies to Sustain Agriculture with Limited Water Supplies Appropriated (D)   Accession Number: 411828

Irrigation, Tillage, and Weed Management to Maintain Agriculture Profitability with Limited Water Specific Cooperative Agreement (S)   Accession Number: 411002

The Effects of Ethylene on Growth, Water Use Efficiency and Yield of Corn Grown under Different Levels of Irrigation and Water Deficit. Trust (T)   Accession Number: 416686

Publications

Agronomic and Environmental Implications of Enhanced s-Triazine Degradation - (Peer Reviewed Journal) - (27-Oct-09)

How Rapidly Does Enhanced Atrazine Degradation Develop - (Abstract)

Shaner, D.L., Khosla, R., Stromberger, M. 2010. How Rapidly Does Enhanced Atrazine Degradation Develop. Weed Science Society of America Meeting Abstracts. Denver,Colorado Feb 17-11,2010

Biological Remediation of Groundwater Containing both Nitrate and Atrazine - (Peer Reviewed Journal) - (15-Aug-09)

How Well Does Zone Sampling Based On Soil Electrical Conductivity Maps Represent Soil Variability - (Abstract) - (07-Jul-09)

Behavior of Atrazine In Limited Irrigation Cropping Systems in Colorado: Prior Use Is Important - (Peer Reviewed Journal) - (06-Mar-09)

Using Nitrogen Limiting Growth Conditions to Remove Atrazine from Groundwater: Laboratory Studies - (Proceedings/Symposium)

Hunter, W.J., Shaner, D.L. 2009. Using Nitrogen Limiting Growth Conditions to Remove Atrazine from Groundwater: Laboratory Studies. In Situ and on Site Bioremediation Symposium Proceedings. ISBN: 978-0-9819730-1-2.

Simazine Degradation Rates in Central Valley Soils with Varying Simazine Use Histories - (Proceedings/Symposium)

Rainbolt, C.M. B.D. Hanson, A. Shrestha, D.L. Shaner, L.J. Krutz. Proceedings Western Society of Weed Science. 62:15

Are Herbicide Resistant Crops The Answer To Controlling Cascuta? - (Peer Reviewed Journal)

Nadler-Hassar, T., Shaner, D.L., Nissan, S., Rubin, B., Westra, P. 2009. Are Herbicide Resistant Crops The Answer To Controlling Cascuta?. Pest Management Science. doi 10,1002/PS 1760

Distribution of Glyphosate-Resistant Horseweed (Conyza Canadensis) and Relationship to Cropping Systems in the Central Valley of California - (Peer Reviewed Journal)

Hanson, B.D., A. Shrestha, D.L. Shaner. 2009. Distribution of Glyphosate-Resistant Horseweed (Conyza Canafensis) and Relationship to Cropping Systems in the Central Valley of California. Weed Science. 57:48-53

Effect of Cropping Pattern and Crop Residue on Herbicide Binding to Soil - (Abstract)

Shaner, D.L., Wiles, L., Hansen, N. 2009. Effect of Cropping Pattern and Crop Residue on Herbicide Binding to Soil. Weed Science Society of America Annual Meeting Abstracts. Orlando Florida February 9-12, 2009.

Enhanced Atrazine Degradation: A Survey of Crop Fields in North-Eastern Colorado. - (Abstract)

Shaner, D.L., Khosla, R., Helms, A., Boseley, B. 2009. Enhanced Atrazine Degradation: A Survey of Crop Fields in North-Eastern Colorado. Weed Science Society of America Annual Meeting - Abstracts. orlando Florida February 9-12, 2009

Soybean Oil Based Biobarriers Remove Atrazine from Contaminated Water: Laboratory Studies - (Peer Reviewed Journal)

Hunter, W.J., Shaner, D.L. 2009. Soybean Oil Based Biobarriers Remove Atrazine from Contaminated Water: Laboratory Studies. Journal of Contaminant Hydrology. 103-29-37.

Enhanced Atrazine Degradation and Implications for Weed Control in Corn - (Government Publication)

Krutz, L.J., Shaner, D.L., Reddy, K.N., Zablotowicz, R.M., Wiles, L. Enhanced Atrazine Degradation and Implications for Weed Control in Corn. Agricultural Research Service Station Bulletin, pp. 1-6. 2008.

Aminopyralid and Clopyralid Absorption and Translocation Differences in Canada Thistle (Cirsium arvense) - (Peer Reviewed Journal)

Bukin, B., Gaines, T., Nissen, S., Westra, P., Shaner, D.L., Sleugh, B.B., Peterson, V.F. 2008. Aminopyralid and Clopyralid Absorption and Translocation Differences in Canada Thistle (Cirsium arvense). Weed Science.

The Role of Translocation as a Mechanism of Resistance to Glyphosate - (Review Article)

Shaner, D.L. 2008. The Role of Translocation as a Mechanism of Resistance to Glyphosate. Weed Science. DOI 10.1614/WS-08-050.1

How Well Does Zone Sampling Based On Soil Electrical Conductivity Maps Represent Soil Variability - (Peer Reviewed Journal)

Shaner, D.L., Khosla, R., Brodahl, M.K., Buchleiter, G.W., Farahani, H. 2008. How Well Does Zone Sampling Based On Soil Electrical Conductivity Maps Represent Soil Variability. Agronomy Journal 10/01/2008

Spatial variability of atrazine and metolachlor dissipation on dryland no-tillage crop fields in Colorado - (Peer Reviewed Journal)

Bridges, M., Henry, W.B., Shaner, D.L., Khosla, R., Westra, P., Reich, R. 2008. Spatial variability of atrazine and metolachlor dissipation on dryland no-tillage crop fields in Colorado. Journal of Environmental Quality. 37:1-9.

Atrazine dissipation in s-Triazine-adapted and Non-adapted soil from Coloroado and Mississippi: Implications of enhanced degradation on atrazine fate and transport parameters - (Peer Reviewed Journal)

Krutz, L.J., Shaner, D.L., Accinelli, C., Zablotowicz, R.M., Henry, W.B. 2008. Atrazine dissipation in s-Triazine-adapted and Non-adapted soil from Coloroado and Mississippi: Implications of enhanced degradation on atrazine fate and transport parameters. Journal of Environmental Quality 37:848-857.

Predicting and Mapping Herbicide-Soil Partition Coefficients for EPTC, Metribuzin and Metolachlor on Three Colorado Fields - (Peer Reviewed Journal) - (01-Oct-07)

The Effect Of Cropping And Herbicide Use History On Atrazine Efficacy And Dissipation - (Abstract)

Shaner, D.L., Wiles, L., Hansen, N. 2008. The Effect Of Cropping And Herbicide Use History On Atrazine Efficacy And Dissipation. Weed Science Society of America Meeting Abstracts: Poster presentation at the WSSA Annual Meeting in Chicago, IL Feb. 5, 2008

The role of absorption and translocation as a mechanism of resistance to glyphosate - (Abstract)

Shaner, D.L. 2008. The role of absorption and translocation as a mechanism of resistance to glyphosate. Weed Science Society of America Meeting Abstracts.Weed Science Society of America,Chicago,Illinois, Feb 4-7, 2008.

An empirically derived model of field-scale gene flow in winter wheat - (Peer Reviewed Journal)

Gaines, T.A., Byrne, P.F., Westra, P., Nissen, S.J., Henry, W.B., Shaner, D.L., Chapman, P.L. 2007. An empirically derived model of field-scale gene flow in winter wheat. Crop Science. 47:2308-2316.

Atrazine Remediation with Soybean Oil Based Biobarriers: Laboratory Studies. - (Abstract)

Hunter, W.J., Shaner, D.L. 2007. Atrazine Remediation with Soybean Oil Based Biobarriers: Laboratory Studies. Symposium Proceedings. Abstract.

Jointed goatgrass (Aegilops cylindrica) by imidazolinone-resistant wheat hybridization under field conditions - (Peer Reviewed Journal)

Gaines, T.A., Henry, W.B., Byrne, P.F., Westra, P., Nissen, S.J., Shaner, D.L. 2008. Jointed goatgrass (Aegilops cylindrica) by imidazolinone-resistant wheat hybridization under field conditions. Weed Science. 56:32-36.

Rapid assay for detecting enhanced atrazine degradation in soil - (Peer Reviewed Journal)

Shaner, D.L., Henry, W.B., Krutz, L.J., Hanson, B.D. 2007. Rapid assay for detecting enhanced atrazine degradation in soil. Weed Science.Volume 55:528-535

Imidazolinone Herbicides - (Book/Chapter)

Shaner, D.L., Stidham, M.A., Singh, B.K. 2007. Imidazolinone herbicides. Book Chapter.

Recovery Of Imidazolinone-Resistant Hard Red Wheat Lines Following Imazamox Application - (Peer Reviewed Journal)

Hanson, B.D., Fandrich, L., Shaner, D.L., Westra, P., Nissen, S.J. 2007. Recovery Of Imidazolinone-Resistant Hard Red Wheat Lines Following Imazamox Application. Crop Science. Vol.(47):2058-2066

Spectrophotometric assessment of glyphosate rainfastness with various surfactant levels on velvetleaf (Abutilon theophrasti) and soybean (Glycine max L.) - (Abstract)

Henry, W.B., Shaner, D.L., West, M.S. 2007. Spectrophotometric assessment of glyphosate rainfastness with various surfactant levels on velvetleaf (Abutilon theophrasti) and soybean (Glycine max L.) [abstract]. Proceedings 2007 Weed Science Society of America Annual Meeting. p. 22.

An Overview of Glyphosate Mode of Action: Why Is It Such A Great Herbicide? - (Abstract)

Shaner, D.L. 2006. An Overview of Glyphosate Mode of Action: Why Is It Such A Great Herbicide? North Central Weed Science Society Annual Meeting, Milwaukee, WI 12/12/2006.

Adsorption and Degradation of Mesotrione in Four Soils - (Abstract)

Shaner, D.L., Brunk, G., Westra, P., Nissen, S. 2006. Adsorption and Degradation of Mesotrione in Four Soils. North Central Weed Science Society US Proceedings. Milwaukee WI, 12/12/2006.

A Rapid Assay to Detect Enhanced Atrazine Degradation in Soil - (Abstract)

Shaner, D.L., Henry, W.B., Krutz, L.J., Hanson, B.D. 2007. A rapid assay to detect enhanced atrazine degradation in soil. Weed Science Society of America Annual meeting, Februarlly 5-9, 2007 and WSWS Meeting March 2007.

An enzyme assay and GIS as tools to characterize and determine the spatial distribution of glyphosate-resistant horseweed in the San Joaquin Valley of California. - (Abstract)

Hanson, B.D., Shrestha, A., Pelham, K., Shaner, D.L. 2007. An enzyme assay and GIS as tools to characterize and determine the spatial distribution of glyphosate-resistant horseweed in the San Joaquin Valley of California. Weed Science Society of America Meeting Abstracts, February 5-8, 2007.

Field History and Dissipation of Atrazine and Metolachlor in Colorado - (Peer Reviewed Journal)

Shaner, D.L., Henry, W.B. 2007. Field History and Dissipation of Atrazine and Metolachlor in Colorado. Journal of Environmental Quality. Volume 36:pp 128-134

Shikimate Accumulation in Sunflower,wheat, and Proso Millet after Glyphosate Application - (Peer Reviewed Journal)

Henry, W.B., Shaner, D.L., West, M.S. 2007. Shikimate accumulation in sunflower, wheat, and proso millet after glyphosate application. Weed Science 55:1-5.

Comparison of efficacy, absorption, and translocation of two glyphosate formulations in velvetleaf (Abutilon theophrasti) - (Peer Reviewed Journal)

Shaner, D.L., Belles, D., Westra, P., Brunk, G. 2006. Comparison of efficacy, absorption, and translocation of two glyphosate formulations in velvetleaf (Abutilon theophrasti). Pest Management Science.62:1177-1181

Comparison Of Efficacy, Absorption And Translocation Of An Isopropyl Amine Salt And An Acid Formulation Of Glyphosate In Velvetleaf (Abutilon Theophrasti) - (Peer Reviewed Journal) - (13-Apr-06)

Evaluation of a Low Volume Agro-Chemical Application System for Center Pivot Irrigation - (Peer Reviewed Journal)

Farahani, H.J., Shaner, D.L., Buchleiter, G.W., Bartlett, G.A. 2006. Evaluation of a low volume agro-chemical application system for center pivot irrigation. Applied Engineering in Agriculture. Volume 22(4): 517-528

Soil Dissipation and Biological Activity of Metolachlor and S-Metolachlor in Five Soils - (Peer Reviewed Journal)

Shaner, D.L., Brunk, G., Nissen, S., Westra, P. 2006. Soil dissipation and biological activity of metolachlor and s-metolachlor in five soils. Pest Management Science.DOI:1002/ps.1215

Response of Selected Hard Red Wheat Lines to Imazamox As Affected by Number and Location of Resistance Genes, Parental Background, and Growth Habit. - (Peer Reviewed Journal)

Hanson, B.D., Shaner, D.L., Westra, P., Nissen, S.J. 2006. Response of selected hard red wheat lines to imazamox as affected by number and location of resistance genes, parental background, and growth habit.. Crop Science 46:1206-1211.

Accumulation of Shikimate in Corn and Soybean Exposed to Various Rates of Glyphosate - (Peer Reviewed Journal)

Henry, W.B., Koger III, C.H., Shaner, D.L. 2005. Accumulation of shikimate in corn and soybean exposed to various rates of glyphosate. Online. Crop Management doi:1094/CM-2005-1123-01-RS.

Amads Increases the Efficacy of Glyphosate Formulations on Corn - (Peer Reviewed Journal)

Shaner, D.L., Westra, P., Nissen, S. 2006. Amads increases the efficacy of glyphosate formulations on corn. Weed Technology.Volume 20, PP179-183

Identifcation of Glyphosate-Resistant Italian Ryegrass (Lolium Multiflorum) in Oregon - (Peer Reviewed Journal)

Perez-Jones, A., Park, K.W., Colquhon, J., Mallory-Smith, C., Shaner, D.L. 2005. Identifcation of glyphosate-resistant italian ryegrass (lolium multiflorum) in oregon. Weed Science. 53:775-779

Fourier-Transformed Diffuse Reflectance to Measure Herbicide Injury in the Nir and Mid-Ir in Soybean and Weed Species - (Abstract)

Henry, W.B., Calderon, F.J., Shaner, D.L. 2005. Fourier-transformed diffuse reflectance to measure herbicide injury in the nir and mid-ir in soybean and weed species. Agronomy Abstract. Presented at the 2005 ASA, CSSA-SSSA International Annual Meeting. Nov. 6-10, 2005. Salt Lake City, UT

The Science of Basf's Imidazolinone Herbicides Used in Canada - (Other)

Shaner, D.L., Hornford, R. 2005. The science of basf's imidazolinone herbicides used in canada. Review Article. Volume 3:pp 23-30

Persistence and Carry over Effect of Imazapic and Imazapyr in Brazilian Cropping Systems - (Peer Reviewed Journal)

Ulbrich, A., Souza, J., Shaner, D.L. 2005. Persistence and carry over effect of imazapic and imazapyr in brazilian cropping systems. Weed Technology. 19:986-991

Imidazolinone-Resistant Wheat Acetolactate Synthase in Vivo Response to Imazamox - (Peer Reviewed Journal)

Rainbolt, C., Thill, D., Zemetra, R., Shaner, D.L. 2005. Imidazolinone-resistant wheat acetolactate synthase in vivo response to imazamox. Weed Technology. 19:539-549

A Rapid in Vivo Epsps Assay with Excised Leaf Discs - (Peer Reviewed Journal)

Shaner, D.L., Nadler-Hassar, T., Henry, W.B., Koger Iii, C.H. 2005. A rapid in vivo epsps assay with excised leaf discs. Weed Science. 53:769-774

Assessment of Two Non-Destructive Assays for Detecting Glyphosate Resistance in Conyza Canadensis - (Peer Reviewed Journal)

Koger III, C.H., Shaner, D.L., Henry, W.B., Nadler-Hassar, T., Thomas, W.E., and Wilcut, J.W. 2005. Assessment of two non-destructive assays for detecting glyphosate resistance in conyza canadensis. Weed Science. 53(4):438-445.

Rapid, Non-Destructive Assays for Screening Potential Glyphosate-Resistant Weed Populations - (Abstract)

Koger III, C.H., Shaner, D.L. 2005. Rapid, non-destructive assays for screening potential glyphosate-resistant weed populations. Proceedings of Southern Weed Science Society.

Imidazolinone-Tolerant Crops: History, Current Status, and Future - (Review Article)

Tan, S., Evans, R., Dahmer, M., Singh, B., Shaner, D.L. 2005. Imidazolinone-tolerant crops: history, current status, and future. Pest Management Science. Volume 61:pp246-257

Weed Control for Colorado Farmers and Wheat Producers - (Popular Publication)

Westra, P., Shaner, D.L., Nissen, S., Haley, S., Johnson, J., Helm, A., Henry, W.B. 2004. Weed control for colorado farmers and wheat producers. Popular Publication. p. 58-67.

Weed Control for Colorado Farmers and Wheat Producers - (Popular Publication)

Westra, P., Shaner, D.L., Nissen, S., Haley, S., Johnson, J., Helm, A., Henry, W.B. 2004. Weed control for colorado farmers and wheat producers. Popular Publication, 2004 Colorado Wheat Hand Book. p. 58-67.

Precision Weed Management: the Wave of the Future Or Just a Passing Fad? - (Peer Reviewed Journal)

Shaner, D.L. 2004. Precision Weed Management: The wave of the future or just a passing fad?. Phytoparasitica. 32:107-110

Shikimate Accumulation in Conventional Corn and Soybean As Affected by Sub-Lethal Rates of Glyphosate - (Abstract)

Koger III, C.H., Henry, W.B., Shaner, D.L. 2004. Shikimate accumulation in conventional corn and soybean as affected by sub-lethal rates of glyphosate. Meeting Abstract. Presented at the SWSS Annual Meeting. Jan. 23-30, 2004. Memphis, TN.

Shikimate Accumulation in Conventional Corn and Soybean As Affected by Sub-Lethal Rates of Glyphosate - (Abstract)

Henry, W.B., Koger Iii, C.H., Shaner, D.L. 2004. Shikimate accumulation in conventional corn and soybean as affected by sub-lethal rates of glyphosate. Meeting Abstract. Presented at the WSSA 2004 Annual Meeting, February 2004. Kansas City, MO.