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Department of Agronomy

Department of Agronomy
Kansas State University
2004 Throckmorton PSC
1712 Claflin Road
Manhattan, KS 66506-0110

Ph: +1-785-532-6101
Fx: +1-785-532-6094

Dr. Rob Aiken

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Crops Research Scientist

Email Dr. Aiken

Northwest Research-Extension Center
105 Experiment Farm Road
P.O. Box 505
Colby, KS 67701

Ph: +1-785-462-6281
Fx: +1-785-462-2315

Biography & Education

Biography

Rob Aiken joined NWREC in 1999 to focus on water-limited cropping systems. Long-term studies examine effects of cropping intensity and cultural practices on water use and land productivity. He provides instrumentation support to identify irrigation management effects on yield formation, physiology support to identify transpiration efficiency and cold tolerance traits in sorghum, and agronomic support for developing pest-resistant sunflower hybrids.

Education
  • Ph.D. Soil Biophysics, Michigan State University, 1992
  • M.S. Agronomy, University of Nebraska, 1988
  • B.S. Botany, University of Nebraska, 1977

Publications

Refereed Journal Articles
  • Lamm, F. R., D. H. Rogers, A. J. Schlegel, X. Lin, R. M. Aiken, N. L. Klocke, L. R. Stone, and L. K. Shaw. 2017. Trends in plant available soil water on producer fields of western Kansas. Applied Engineering in Agric. 33(6):859-868.
  • Moberly, J.T., R.M. Aiken, X. Lin, A.J. Schlegel, R. L. Baumhardt and R.C. Schwartz. 2017. Crop water production functions of Grain Sorghum and Winter Wheat in Kansas and Texas. J. of Contemporary Water Resource Research and Education. 162:42-60.
  • Yang, H.S., P. Grassini, K.G. Cassman, R.M. Aiken and P.I. Coyne. 2017. Improvements to the Hybrid-Maize model for simulating maize yields in harsh rainfed environments. Field Crops Research 204:180-190.
  • Lin, X., R.A. Pielke Sr., R. Mahmood, C.A. Fiebrich and R. Aiken. 2015. Observational evidence of temperature trends at two levels in the surface layer. Atmos. Chem. Phys. Discuss. 15:1-32. Doi:10.5194/acpd-15-1-2015.
  • Aiken, R., D. Baltensperger, J. Krall, A. Pavlista and J. Johnson. 2015. Planting methods affect emergence, flowering and yield of spring oilseed crops in the U.S. central High Plains. Industrial Crops and Products. 69:273-277.
  • Perumal, R., T. Tesso, K. D. Kofoid, P.V.V. Prasad, R.M. Aiken, S.R. Bean, J.D. Wilson, T. J. Herald, and C.R. Little. 2015. Registration of Nine Grain Sorghum Seed Parent (A/B) Lines. Journal of Plant Registration. doi:10.3198/jpr2014.09.0068crp
  • Zhang, G., R. Aiken, T.J. Martin. 2015. Relationship between Carbon Isotope Discrimination and Grain Yield of Rainfed Winter Wheat in a Semi-arid Region. Euphytica 204:39-48 DOI 10.1007/s10681-014-1335-6
  • Prasifka, J.R., J. F. Campbell, R.M. Aiken and J.D. Bradshaw. 2014. Methods for assessing infestations of sunflower stem weevil, Cylindrocopturus adspersus LeConte (Coleoptera: Curculionidae), in sunflower stems. The Canadian Entomologist. 146:465-469.
  • Narayanan, S., R.M. Aiken, P.V.V. Prasad, Z. Xin, G. Paul and J. Yu. 2014. A Simple Quantitative Model to Predict Leaf Area Index in Sorghum. Agron. J. 106:219-226.
  • Paul, G., Gowda, P.H., Vara Prasad, P.V., Howell, T.A., Aiken, R.M., Neale, C.M.U., 2014. Investigating the influence of roughness length for heat transport (Zoh) on the performance of SEBAL in semi-arid irrigated and dryland agricultural systems. Journal of Hydrology, 509:231-244. http://dx.doi.org/10.1016/j.jhydrol.2013.11.040.
  • Kapanigowda, M.H., R. Perumal, M. Djanaguiraman, R. M. Aiken, T. Tesso, P.V.V. Prasad, C.R. Little. 2013. Genotypic variation in sorghum [Sorghum bicolor (L.) Moench] exotic germplasm collections for drought and disease tolerance. SpringerPlus 2:650.
  • Kapanigowda, M.H., R. Perumal, R.M. Aiken, T.J. Herald, S.R. Bean, and C.R. Little. 2013. Analyses of sorghum [Sorghum bicolor (L.) Moench] lines and hybrids in response to early-season planting and cool conditions. Can. J. Plant Sci. (2013) 93: 773_784
  • Todd, R.W., N.A. Cole, H.M. Waldrip, and R.M. Aiken. 2013. Arrhenius Equation for Modeling Feedyard Ammonia Emissions Using Temperature and Diet Crude Protein. J.E.Q. 42:666-671.
  • Aiken, R.M., D.M. O’Brien, B.L. Olson and L. Murray. 2013. Replacing Fallow with Continuous Cropping Reduces Crop Water Productivity of Semiarid Wheat. Agron. J. 105:199-207.
  • Narayanan, S., R.M. Aiken, P.V.V. Prasad, Z. Xin and J. Yu. 2013. Water and Radiation Use Efficiencies in Sorghum. Agron. J. 105:649-656.
  • Aiken, R.M. and N.L. Klocke. 2012. Inferring transpiration control from sap flow heat gauges and the Penman-Monteith equation. Transactions of the ASABE. 55(2):543-549.
  • Pavlista, A.D., D.K. Santra, T.A. Isbell, D.D. Baltensperger, G.W. Hergert, J. Krall, A. Mesbach, J. Johnson, M. O’Neil, R. Aiken, A. Berrada. 2011. Adaptability of irrigated spring canola oil production to the US High Plains. Industrial Crops and Products 33 (2011) 165–169.
  • Lyon, D.J., A.D. Pavlista, G.W. Hergert, R.N. Klein, C.A. Shapiro, S. Knezevic, S.C. Mason, L.A. Nelson, D.D. Baltensperger, R.W. Elmore, M.F. Vigil, A.J. Schlegel, B.L. Olson and R.M. Aiken. 2009. Skip-Row Planting Patterns Stabilize Corn Grain Yields in the Central Great Plains. Online. Crop Management doi:10.1094/CM-2009-0224-02-RS.
  • Coyne, P. I., R. M. Aiken, S. J. Maas and F. R. Lamm. 2009. Evaluating YieldTracker yield forecasts for corn in western Kansas. Agron. J. 101:671-680
  • Lamm, F. R., R. M. Aiken, and A. A. Abou Kheira. 2009. Corn yield and water use characteristics as affected by tillage, plant density and irrigation. Transaction of the ASABE. 52(1): 133-143.
  • Klocke, N.L., R. S. Currie, R. M. Aiken. 2009. Soil Water Evaporation and Crop Residues. Trans. ASABE. 52(1): 103-110.
  • Xin, Z., R.M. Aiken and J. Burke. 2009. Genetic Diversity of Transpiration Efficiency in Sorghum. Field Crops Research 111:74-80.
  • Charlet, L. R.M. Aiken, J. Miller and G. Seiler. 2008. Resistance Among Cultivated Sunflower Germplasm to Stem-Infesting Pests in the Central Great Plains. Journal of Economic Entomology. 102:1281-1290.
  • Charlet, L.D., R.M. Aiken, G.J. Seiler, A. Chirumamilla, B.S. Hulke, and J.J. Knodel. Resistance in Cultivated Sunflower Resistance to the Sunflower Moth (Lepidoptera: Pyralidae). 2008. Journal of Agricultural & Urban Entomology. 25(4):245-257
  • Charlet, L.D., R.M. Aiken, R.F. Meyer and A. Gebre-Amlak. 2007. Impact of Irrigation on Larval Density of Stem-Infesting Pests of Cultivated Sunflower in Kansas. J. Econ. Entomol. 100(5):1555-1559.
  • Charlet, L.D., R.M. Aiken, R.F. Meyer and A. Gebre-Amlak. 2007. Impact of Combining Planting Date and Chemical Control to Reduce Larval Densities of Stem-Infesting Pests of Sunflower in the Central Plains. J. Econ. Entomol. 100(4):1248-1257.
  • Stone, L.R., A.J. Schlegel, A.H. Khan, N.L. Klocke and R.M. Aiken. 2006. Water supply: yield relationships developed for study of water management. J. Nat. Resour. Life Sci. Educ. 35:161-173. http://www.JNRLSE.org
  • Charlet, L.D. and R.M. Aiken. 2005. Impact of planting date on sunflower stem weevil (Coleoptera: Curculionidae) larval density and parasitism in oilseed and confection sunflower in western Kansas. Crop Management.
  • Aiken, R.M. 2005. Applying thermal time scales to sunflower development. Agron. J. Agron. J. 97:746-754
Proceedings, National, & Regional Conferences
  • Aiken, R. M., F. R. Lamm, and A. A. AbouKheira. 2017. Irrigation and tillage management effects on canopy formation in corn. In: Proc. 29th annual Central Plains Irrigation Conference, Feb. 21-22, 2017, Burlington, Colorado. pp. 100-110.
  • Lamm, F. R., R. M. Aiken, A. A. AbouKheira, and G. J. Seiler. 2017. Irrigated sunflowers in northwest Kansas: Productivity and canopy formation. In: Proc. 29th annual Central Plains Irrigation Conference, Feb. 21-22, 2017, Burlington, Colorado. pp. 143-154.
  • Lamm, F.R. and R.M. Aiken. 2016. Timing of irrigation for tall and short stature sunflower hybrids to help improve land allocation decisions. Proc. 38th Sunflower Research Workshop, Nat. Sunflower Assoc., Fargo, ND, 12-14 January 2016.
  • Aiken, R., I. Kisekka and J. Aguilar. 2015. A place for grain sorghum in deficit irrigation production systems? Proceedings of the 27th annual Central Plains irrigation Association, Colby, KS. February 17-18, 2015.
  • Schneekloth, J., D.C. Nielsen and R.M. Aiken. 2014. Impact of drought genetics on irrigated corn production. Proceedings of the 26th Annual Central Plains Irrigation Conference. Burlington, CO. February 25-26, 2014.
  • Aiken, R.M., F.R. Lamm and G. Seiler. 2013. Sunflower canopy and oilseed yield formation under deficit irrigation. Proc. 35th Sunflower Research Workshop, Nat. Sunflower Assoc., Fargo, ND, 7 January 2013.
  • Aiken, R.M., F. R. Lamm, and A. A. Aboukheira. 2011. Oilseed crop water use and water productivity. In: Proc. 2011 Irrigation Association Tech. Conf., San Diego, California, November 6-8, 2011.
  • Aiken, R. M., F. R. Lamm, and A.A. Aboukheira. 2011. Water use of oilseed crops. In: Proc. 23rd annual Central Plains Irrigation Conference, Burlington, Colorado, Feb. 22-23, 2011.
  • Lamm, F.R., R.M. Aiken and A.A. Aboukheira. 2011. Irrigation research with sunflowers in Kansas. In: Proc. 23rd annual Central Plains Irrigation Conference, Feb. 22-23, 2011, Burlington, Colorado.
  • Aiken, R.M., P.I. Coyne and A. A. Aboukheira. 2011. A Field Procedure to Derive Heat, Water Vapor and Carbon Dioxide Exchange Rates from Digital Images of Vegetative Canopies. In: Proc. 2011 ASABE Annual International Meetings. Louisville, Kentucky, August 7 – 10, 2011
  • Aiken, R. and B. Olson. 2010. Long Term Crop Rotation Results. Proceedings. Cover Your Acres Winter Conference. January 2010. K-State Research and Extension.
  • Aiken, R.M. and N.L. Klocke. 2010. Operational Characteristics of Sap Flow Heat Gauges to Quantify Transpiration Flux in Corn. 5th National Decennial Irrigation Conference Sponsored jointly by ASABE and the Irrigation Association Phoenix, Arizona, December 5 - 8, 2010.
  • Aiken, R.M.. Climate change impacts on crop growth in the Central High Plains. 2009. Proceedings of the 21st Annual Central Plains Irrigation Conference, Colby Kansas, February 24-25, 2009. Available from CPIA, 760 N Thompson, Colby, KS. pp. 14-24.
  • Charlet, L.D., R.M. Aiken, G.J. Seiler, J.J. Knodel, K.A. Grady, A. Chirumamilla, and B.S. Hulke. 2009. Development of host-plant resistance as a strategy to reduce damage from the major sunflower insect pests. Proc. 31st Sunflower Research Workshop, Nat. Sunflower Assoc., Fargo, ND, 13-14 January 2009.
  • Aiken, R.M. and P.I. Coyne. Eye in the sky: Yield Forecasts from satellite images? 2009. Proceedings. Cover Your Acres Winter Conference. January 2009. K-State Research and Extension.
  • Lamm, F. R., R. M. Aiken, and A. A. Abou Kheira. 2008. Effect of tillage practices and deficit irrigation on corn. In: Proc. Central Plains Irrigation Conference, Greeley, CO., Feb. 19-20, 2008. Available from CPIA, 760 N.Thompson, Colby, KS. pp. 84-100.
  • Lamm, F. R., and R. M. Aiken. 2008. Comparison of Temperature-Time Threshold-and ET-based Irrigation Scheduling for Corn Production. ASABE paper no. 084202. Available from ASABE, St. Joseph, MI. 12 pp
  • Aiken, R., L. Stone and A. Schlegel. 2008. Evaluating an Inverse Solution for Crop Stress Factors in Kansas Water Budget. Proceedings of the 38th Annual Biological Systems Simulation Group Conference. 8-10 April 2008. Temple, TX.
  • Aiken, R.M. and D. O’Brien. 2008. Ten Crop Sequences, Transition to No-till. Proceedings, Cover Your Acres Winter Conference. January 2008. K-State Research and Extension.
  • Aiken, R.M. and P. Stahlman. 2008. Atrazine Tolerance/Resistance in Sunflower Isolines. Proc. 30th Sunflower Research Workshop, Natl. Sunflower Assoc., Fargo, ND, 8-9 January 2008.
  • Charlet, L.D.,R.M. Aiken, J.F. Miller, G.J. Seiler, K.A. Grady and J.J. Knodel. 2007. Germplasm Evaluation for Resistance to Insect Pests of the Sunflower Head. Proc. 29th Sunflower Research Workshop, Natl. Sunflower Assoc., Fargo, ND, 10-11 January 2007.
  • Lamm, F. R. and R. M. Aiken 2007. Conventional, strip, and no tillage corn production under different irrigation capacities In: Proc. Central Plains Irrigation Conference, Kearney, NE., Feb. 27-28, 2007. Available from CPIA, 760 N.Thompson, Colby, KS. pp. 32-47.
  • Olson, B.L.S., J. Falk and R. Aiken. 2006. Sunflower yield as affected by strip-till. Proc. 28th Sunflower Research Workshop, Natl. Sunflower Assoc., Fargo, ND, 11-12 January 2006.
  • Aiken, R.M. 2006. Cropping intensity, water use and productivity under drought conditions. Proceedings. Cover Your Acres Winter Conference. February 2, 2006. K-State Research and Extension. pp. 20–21.
  • Olson, B., B. Gordon, J. Falk and R. Aiken. 2006. Dryland strip-till. Proceedings. Cover Your Acres Winter Conference. February 2, 2006. K-State Research and Extension. pp. 69-73.
  • Aiken, R.M. and F.R. Lamm. 2006. Irrigation of oilseed crops. In proceedings of the Central Plains Irrigation Conference, Colby, KS Feb. 21-22, 2006. Available from CPIA, 760 N. Thompson, Colby, KS. pp 162-172.
  • Lamm, F.R. and R.M. Aiken. 2006. Effect of tillage and irrigation capacity on corn production. In proceedings of the Central Plains Irrigation Conference, Colby, KS Feb. 21-22, 2006. Available from CPIA, 760 N. Thompson, Colby, KS. pp. 122-135.
  • Olson, B.L.S and R. M. Aiken. 2005. Dryland Strip Till Production. Proc. 27th Sunflower Research Workshop, Natl. Sunflower Assoc., Fargo, ND, 11-13 January 2005.
  • Charlet, L. D., R. Aiken, J. Miller, G. Seiler, K. Grady, & R. Meyer. 2006. Prospects and challenges in developing sunflower with resistance to seed and stem infesting insects. Proc. 28th Sunflower Research Workshop, Natl. Sunflower Assoc., Fargo, ND, 11-12 January 2006. http://www.sunflowernsa.com/ research/research-workshop/documents/ Charlet_StemWeevils_06.pdf
  • Charlet, L. D., R. M. Aiken, R. R. Meyer, and A. Gebre-Amlak. 2004. Management of sunflower stem insect pests. Proc. 26th Sunflower Research Workshop, Natl. Sunflower Assoc., Fargo, ND, 14-15 January 2004.
  • Aiken, R.M., D. Inloes, and S. Hutchinson. 2004. Precipitation maps: Can they support a regional soil water balance? In Rainwater, K.A. and T.M. Zobeck, Eds. High Plains Groundwater Resources: Challenges and Opportunities. Conference Proceedings, Texas Tech University Water Resources Center, Lubbock, TX.
  • Schlegel, A., R.M. Aiken, and L.R. Stone. 2004. Effect of tillage on soil water recharge and crop production. High Plains Sunflower Research. Nat. Sunflower Assoc.
  • Aiken, R.M. 2003. Transition from summer crop to winter wheat in the central High Plains. Proc. Four-State Cropping Systems Conference. PHREC 03-29. pp. 49-52. 20–21 March 2003. Sidney, NE.
  • Aiken, R.M., R.L. Vanderlip, L.R. Stone, and R.D. Stockton. 2003. Can crop simulation models support sunflower production? Proc. Nat. Sunflower Assoc. 16–17 January 2003. Fargo, ND.
  • Aiken, R.M. 2003. Transition from summer crop to winter wheat in the central High Plains. Proceedings: Four-State Cropping Systems Conference. PHREC 03-29. pp. 49-52.
  • Aiken, R.M. 2002. Available soil water, sunflower canopy development, and productivity. Proc. Nat. Sunflower Assoc. 17-18 January 2002. Fargo, ND.
  • Aiken, R.M. 2001. Sunflower Productivity under Agricultural Drought. Proc. Nat. Sunflower Assoc. 17-18 January 2001. Fargo, ND.
Abstracts
  • Davidson, J.M., D. Min, R.M. Aiken and G.J. Kluitenberg. 2017 Evaluating Teff grass as a summer forage. Agronomy Abstracts.
  • Aiken, R.M. 2016. Apparent contradictions in 13C discrimination, normalized transpiration efficiency and wheat water use. Agronomy Abstracts. 455-818.
  • Aiken, R.M., K.J. Shroyer and P.V.V. Prasad. 2015. Managing wheat cultivars to enhance water productivity in semi-arid cropping systems. Agronomy Abstracts. 196-4. Invited.
  • Moberly, J. R.M. Aiken, X. Lin, L.R. Stone, A.J. Schlegel, R.L. Baumhardt, R.C. Schwartz and D. O’Brien. 2015. Crop water production functions for grain sorghum and winter wheat. Agronomy Abstracts. 95-1.
  • Kutikoff, S., X. Lin, R.M. Aiken, S.R. Evett, P.H. Gowda, P.D. Colaizzi and D.K. Brauer. 2015. Modeling uncertainty of evapotranspiration measurements from multiple eddy covariance towers over a crop canopy. Agronomy Abstracts. 95-10.
  • Zambreski, Z., X. Lin, G.J. Kluitenberg and R.M. Aiken. 2015. Spatiotemporal characteristics of drought occurrence in Kansas using multiple indices. Agronomy Abstracts. 295-2.
  • Aiken, R.M., G. Zhang and T.J. Martin. 2014. Carbon Isotope Discrimination, Selecting for Productivity and Water Use Efficiency in Wheat. Agronomy Abstracts 409-6
  • Lin, X., S. Evett, P. Gowda, P. Colaizzi, and R. Aiken. 2014. Spectral Analysis of Large-Eddy Advection in ET from Eddy Covariance Towers and a Large Weighting Lysimeter. Agronomy Abstracts 236-7
  • Aiken, R.M. 2013. Book Review: Advances in Irrigation Agronomy, M.K.V. Carr. Agricultural Water Management. 125:105
  • Aiken, R.M. and P.I. Coyne. 2013. Inferring Relative Heat, Water Vapor and Carbon Exchange From Digital Images of Vegetative Canopies. Agronomy Abstracts. 201-6.
  • Trostle, C.L., D.J. Lyon, O.J. Idowu and R.M. Aiken. 2013. Semi-Arid Dryland Cover Cropping: Panacea Or Fallacy? Agronomy Abstracts. 318-9.
  • Aiken, R., F. Lamm and G. Seiler. 2013 Sunflower canopy and oilseed yield formation under deficit irrigation. National Sunflower Association Research Forum, Fargo, ND 1/7/13
  • Aiken, R.M. Wheat crop water productivity in fallow and continuous cropping systems. Water and Future of Kansas. Manhattan, KS, 8/ 2013
  • Aiken, R.M. and P. Miller. 2012. Principles of transpiration and crop water production functions. Agronomy Abstracts. Invited.
  • Kapanigowda, M.H., R. Perumal, R. Aiken, T. Tesso and C.R. Little. 2012. Studies on sorghum [Sorghum Bicolor (L.) Moench] minicore germplasm and breeding lines to identify potential sources for abiotic and biotic stressors. Agronomy Abstracts.
  • Kapanigowda, M.H., R. Perumal, R. Aiken, S. Bean, T. Herald and C.R. Little. 2012. Field and controlled environment studies in sorghum [Sorghum Bicolor (L.) Moench] lines and hybrids for cold tolerance. Agronomy Abstracts.
  • Paul, G., P.H. Gowda, P.V.V. Prasad, T.A. Howell, S.A. Staggenborg, P. Colaizzi, S.L. Hutchinson and R.M. Aiken. 2012. Testing of two source energy balance model under irrigated and dryland conditions using high resolution airborne imagery. Agronomy Abstracts.
  • Paul, G., P.H. Gowda, P.V.V. Prasad, T.A. Howell, S.A. Staggenborg, P. Colaizzi, R. Aiken and S.L. Hutchinson. 2012. An intercomparison study of Tsm, Sebs and SEBAL using high resolution imagery and lysimetric data. Agronomy Abstracts.
  • Pidaran, K. M.B. Kirkham and R. Aiken. 2012. Stomatal resistance, leaf temperature and chlorophyll content of sorghum hybrids varying in maturity. Agronomy Abstracts.
  • Aiken, R. M., F. R. Lamm, and G.R. Seiler. 2011. Sunflower canopy and oilseed yield formation under deficit irrigation. Agronomy Abstracts. American Society of Agronomy.
  • Narayanan, S. R. Aiken, V. Prasad, Z. Xin, G. Paul, J. Yu. 2011. Allometric model to quantify sorghum canopy formation. Agronomy Abstracts. American Society of Agronomy.
  • Todd, R.W., N.A. Cole and R.M. Aiken. 2010. Temperature Dependence of Feedyard Ammonia Emissions: The Arrhenius Equation. Agronomy Abstracts. /AnMtgsAbsts2010
  • Xin, Z., R. Aiken, G. Burow and J. Burke. 2010. Sorghum Transpiration Efficiency. Agronomy Abstracts. /AnMtgsAbsts2010
  • Pidaran, K., R. Aiken, M.B. Kirkham, K. Roozeboom, B. Olson, A. Schlegel and J. Holman. 2010 Planting geometry effects on sorghum productivity in water limiting conditions. Agronomy Abstracts. /AnMtgsAbsts2010.
  • Aiken, R., D. Baltensperger, J. Krall, J. Johnson, A. Pavlista. 2010. Planting Dates and Methods for Spring Canola Establishment, Flowering and Yield in the U.S. Central High Plains. Agronomy Abstracts. /AnMtgsAbsts2010
  • Narayanan, S., R. Aiken, Z. Xin, V. Prasad, K. Kofoid, J. Yu. 2010 Canopy Architecture and Transpiration Efficiency in Sorghum. 2010. Agronomy Abstracts. /AnMtgsAbsts2010
  • Aiken, R.M., D. O'Brien, B. Olson and L. Murray. 2009. Crop sequence effects on wheat water use, productivity and economic returns. Agronomy Abstracts/AnMtgsAbsts2009.54699
  • Coyne, P.I. and R.M. Aiken. 2009. Estimating wheat canopy cover by remote sensing. Agronomy Abstracts /AnMtgsAbsts2009.54622
  • Aiken, R.M. and N.L. Klocke. 2008. Transpiration Quantified by Sap Flow Heat Gauges and the Penman-Monteith Equation. Agronomy Abstracts.
  • Xin, A., R.M. Aiken, and J. Burke. 2008. Variation in transpiration efficiency in sorghum. Agronomy Abstracts
  • Coyne, P.C., R.M. Aiken and S.J. Maas. 2008 Suitability of YieldTracker for predicting corn yields in western Kansas. Agronomy Abstracts.
  • Aiken, R. Z. Xin, K. Kofoid, M.B. Kirkham and V. Prasad 2007. Parsing Components of Transpiration Efficiency in Grain Sorghum. Agronomy Abstracts.
  • Thevar, P., M. B. Kirkham, R. Aiken, K. Kofoid, and Z. Xin. 2007. Stomatal conductance of eight grain sorghum lines varying in transpiration efficiency. Agronomy Abstracts.
  • Aiken, R.M. 2006. Wheat productivity and water use in intensive cropping systems under drought. Agronomy Abstracts.
  • Baltensperger, D., A. Pavlista, J. Krall, T. Nleva, E. Nielsen, J. Johnson, D. Nielsen, R. Aiken, M. Killon, G. Frickel, J. Margheim, J. Rickertsen, R. Meyer, L. Nelson, T. Isbell. 2006. Cultivar Performance of Canola, Brown Mustard and Camelina in the High Plains of Colorado, Kansas, Nebraska, South Dakota and Wyoming. Agronomy Abstracts.
  • Kofoid, K.D. and R.M. Aiken. 2005. Genetic control of grain fill rate and duration in sorghum. Agronomy Abstracts. American Society of Agronomy.
  • Aiken, R.M., M.R. Tuinstra and K.D. Kofoid. 2005. Assimilation and growth characteristics of kaoliang and tropical sorghum lines. Agronomy Abstracts. American Society of Agronomy.
  • Aiken, R.M., M.R. Tuinstra, K.D. Kofoid, and R.D. Stockton. 2003. Cold tolerance components in grain sorghum seedlings: Male and female contributions. Agronomy Abstracts. American Society of Agronomy.
  • Aiken, R.M., J.M.S. Hutchinson and J.A. Harrington. 2003. “GIS modules for ET and available soil water in Northwest Kansas.” Water and the Future of Kansas. Manhattan, KS. March 11, 2003.
  • Fjell, D.L., R.M. Aiken and A.J. Schlegel. 2002. Effect of tillering on dryland corn in the High Plains. Agronomy Abstracts. American Society of Agronomy.
  • Aiken, R.M., F. Lamm, J. Ham, and T. Trooien. 2001. Detection Limits of Sap Flow Heat Gauges in Replicated Field Plots of Corn. Agronomy Abstracts. American Society of Agronomy.
  • Aiken, R.M. and R.D. Stockton. 2001. Planting date and stress effects on sunflower: Development, yield and water use. High Plains Sunflower Committee. National Sunflower Association. Fargo, ND.
  • Bradshaw, T.L., R.L. Vanderlip, S.A. Staggenborg, and R.M. Aiken. 2001. Using SORKAM to mimic field level yield variability. Agronomy Abstracts. American Society of Agronomy.
  • Scheffler, T.E., R.L. Vanderlip, S.A. Staggenborg and R.M. Aiken. 2001. Validation of the DSSAT Sunflower Growth Model in Kansas. Agronomy Abstracts. American Society of Agronomy.
  • Aiken, R.M. 2000. Planting date and water deficit effects on sunflower: Development, yield and water use. High Plains Sunflower Research. National Sunflower Association.
  • Aiken, R.M. 1999. Understanding and managing rust, Phoma and stem weevil damage in High Plains Sunflower. High Plains Sunflower Research. National Sunflower Association.
Experiment Station / Extension Publications
  • Aiken, R.M., F.R. Lamm and A.A. AbouKheira. 2017. Irrigation and tillage management effects on canopy formation in Corn. Field Research Report of Progress.
  • Lamm, F.R., R.M. Aiken, A.A. AbouKheira and G.J. Seiler. 2017. Irrigated sunflowers in Northwest Kansas: Productivity and canopy formation. Field Research Report of Progress.
  • Olson, B. and R.M. Aiken. 2015. Wheat planting date and seeding rate research in Northwest Kansas. KSRE eUpdate. Issue 530.
  • Lamm, F. R. and R. Aiken. 2011. Managing Deficit Sprinkler Irrigation of Sunflower.  The Sunflower 37(2) 14-15. February 2011.
  • Aiken, R.M. 2011. Spring Canola Establishment: Planting Dates and Methods for the Central High Plains. Canola Digest 6(2):20.
  • Pidaran, K., R. Aiken, M. B. Kirkham, K. Roozeboom, A. Schlegel, J. Holman and B. Olson. 2011. Planting geometry effects on sorghum productivity in the central High Plains. Field Research Report of Progress SRP 1048, pp. 57-59
  • Aiken, R., R. Wolf, L. Dible and A. Oien. 2010. Spring Oilseed Planting Method. Field Research Report of Progress SRP 1030, pp. 69 -71
  • Aiken, R., R. Wolf, L. Dible and A. Oien. 2010. Planting date effects on spring oilseed production. Field Research Report of Progress SRP 1030, pp. 72-75
  • Aiken, R., R. Wolf, L. Dible and A. Oien. 2010. Spring oilseed variety trials. Field Research Report of Progress. SRP 1030, pp. 78-82
  • Aiken, R., R. Wolf, L. Dible and A. Oien. Canola harvest methods. Field Research Report of Progress SRP 1030, pp. 83-84
  • Lamm, F.R., R.M. Aiken and A.A. Abou Kheira. 2008. Effect of Tillage Practices and Deficit Irrigation on Corn. 2008. Field Research Report of Progress SRP 1017, pp. 113-120.
  • Coyne, P., R.M. Aiken, F.R. Lamm and S. Maas. 2008. Forecasting Corn Yields in Western Kansas. Field Research Report of Progress SRP 1017, pp. 121-125
  • Aiken, R.M., L.R. Stone and A.J. Schlegel. 2008. Forecasting Wheat and Sorghum Yields with the Kansas Water Budget. Field Research Report of Progress SRP 1017, pp. 126-129
  • Aiken, R.M. and D. O’Brien. 2008. Ten Crop Sequences, Transition to No-Till. Field Research Report of Progress SRP 1017, pp. 130-136
  • Klocke, N.L., R. Aiken, L.R. Stone, and R.S. Currie. 2007. Soil water evaporation as influenced by crop residue management. In Report of Progress 980. Kansas State University, AES and CES, Aug. 30, 2007, Garden City, KS. p. 34-35.
  • Klocke, N., R. Aiken, R. Currie and L. Stone. 2006. Soil water evaporation as influenced by crop-residue management in sprinkler irrigation. In Report of Progress 961. SWREC 2006 Field Day. Kansas State University, AES and CES, August, 2006.
  • Schlegel, A., R.M. Aiken, and T. Dumler. 2006. Northwest Kansas crop rotations. Proceedings. Cover Your Acres Winter Conference. 2 February 2006. K-State Research and Extension.
  • Falk, J., B. Olson, B. Gordon and R. Aiken. 2006. Dryland strip-till. Proceedings. Cover Your Acres Winter Conference. 2 February 2006. K-State Research and Extension.
  • Aiken, R.M., L. Dible and R. Wolf. 2005. Direct drill vs. planter seeding of grain sorghum and soybean in semi-arid cropping systems. Proceedings. Cover Your Acres Winter Conference. 3 February 2005. K-State Research and Extension.
  • Olson, B.L.S and R. M. Aiken. 2005. Dryland Strip Till Production. Proc. 27th Sunflower Research Workshop, Natl. Sunflower Assoc., Fargo, ND, 11-13 January 2005.
  • Olson, B. B. Gordon, A. Schlegel, R. Aiken and R. Lamond. 2005. Dryland strip-till and skip-row corn. Proceedings. Cover Your Acres Winter Conference. 3 February 2005. K-State Research and Extension.
  • Aiken, R.M. and F.R. Lamm. 2005 Corn canopy temperature as a stress index with limited subsurface drip irrigation. In Report of Progress 956. Kansas State University, AES and CES.
  • Klocke, N.L., R.M. Aiken and L.R. Stone. 2005. Soil water evaporation as influenced by crop residue management and plant transpiration in sprinkler irrigation systems. In Report of Progress 945. Kansas State University, AES and CES.
  • Aiken, R.M. and R.D. Stockton. 2005. Sunflower development, yield and water use: Mid-oleic and high-oleic isohybrids. In Report of Progress 956. Kansas State University, AES and CES.
  • Charlet, L.D. and R.M. Aiken. 2005. Management strategies for the sunflower stem weevil. In Report of Progress 956. Kansas State University, AES and CES.
  • Schlegel, A., R. Aiken and L. Stone. 2005. Effect of tillage on soil water recharge and crop production. In Report of Progress 956. Kansas State University, AES and CES.
  • Evans, P. and R. Aiken. 2004 National Winter Canola Variety Trial. C. Rife and C. LaBarge, eds. KSRE Publication No. SRP937. Manhattan, KS. April, 2005.
  • Aiken, R.M. 2003. Crop sequence effects on land productivity, water use and soil quality in semi-arid cropping systems. KSU Agronomy Field Research, Report of Progress 913. pp. 90-94
  • Aiken, R.M. and L.D. Charlet. 2003. Effects of insecticide timing and planting period on sunflower productivity in Northwest Kansas. KSU Agronomy Field Research, Report of Progress 913. pp. 95-96
  • Aiken, R.M. and R.D. Stockton. 2003. Effects of planting period on sunflower productivity in Northwest Kansas. KSU Agronomy Field Research, Report of Progress 913. pp. 97-98.
  • Aiken, R.M. and R.D. Stockton. 2003. Effects of supplemental water on sunflower productivity in Northwest Kansas. KSU Agronomy Field Research, Report of Progress 913. pp. 99-101.
  • Aiken, R.M. and W.B. Gordon. 2003. Soybean productivity under drought: Effects of planting dates and maturity groups in Northwest Kansas. KSU Agronomy Field Research, Report of Progress 913. pp. 102-104.
  • Aiken, R.M., M. Tuinstra, K. Kofoid and R. Stockton. 2003. Components of cold tolerance in grain sorghum: Male and female contributions to germination and early growth. KSU Agronomy Field Research, Report of Progress 913. pp. 105-108.
  • Aiken, R.M. 2001. NSI Variety Trial. Kansas performance test with Sunflower hybrids. 2001 KAES Report of Progress 888.
  • Nielsen, D.C., R.M. Aiken, G.S. McMaster. 1996. Optimum Wheat Stubble Height to Reduce Erosion and Evaporation. Conservation Tillage Fact Sheet #4-97. USDA/ARS.
  • Aiken, R.M. and C.A. Francis. 1987. Water Use in Dryland Alfalfa, Corn and Soybean. UN L Crop Production New. Vol. VII. No. 23.

Research

Aiken's research goal is to contribute knowledge of factors regulating the crop transpiration fraction of the annual water budget and the transpiration efficiency of yield formation for water-limited cropping systems. The NWREC Crops Program maintains long-term cropping system studies to evaluate cropping intensity and tillage effects on water use, yield formation and critical soil properties. Field instrumentation quantifies canopy formation, thermal indices of water stress and photosynthetic/transpiration relationships. Physiology support for sorghum breeding focuses on transpiration efficiency and cold tolerance; agronomic support for sunflower breeding focuses on pest-resistance and pest management traits.

Project 1. Objective: Identify critical traits and germplasm sources in sorghum for rapid emergence, vigorous growth and transpiration efficiency under chilling conditions (13 degrees C or 55 degrees F soil planting temperature).

Project 2 Objective: Develop and evaluate analytic tools to scale energy and water balance components of crop systems in semi-arid regions; and quantify relationships to canopy formation, components of yield, transpiration fraction and efficiency for alternative management practices.

Project 3 Objective: Evaluate germplasm sources of adaptive traits for emerging oilseed crops including pest resistance and herbicide tolerance in sunflower.

View Dr. Aiken's Research Site at the Western Kansas Agricultural Research Center.

Staff & Students