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ARS Home » Plains Area » Las Cruces, New Mexico » Cotton Ginning Research » People & Locations » Derek Whitelock
Derek P Whitelock (PhD)
Cotton Ginning Research
Supervisory Agricultural Engineer

Phone: (575) 526-6381
Fax: (575) 525-1076

(Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)

Projects
Sustainable Multi-functional Agricultural and Energy Systems for Arid Environments
In-House Appropriated (D)
  Accession Number: 444133
Improving the Production and Processing of Western and Long-Staple Cotton and Companion Crops to Enhance Quality, Value, and Sustainability
In-House Appropriated (D)
  Accession Number: 438000
Producing Upland and Pima Seed Cotton for ARS Research Studies
Grant (G)
  Accession Number: 440842
Science Curricula Through Education, Development and Outreach Programs
Non-Assistance Cooperative Agreement (S)
  Accession Number: 441803
Measuring and Modeling Pollutants in Agricultural Systems and Landscapes
Non-Assistance Cooperative Agreement (S)
  Accession Number: 435499
Collaboration on Agrivoltaics Research for Water-limited Agricultural Systems
Non-Assistance Cooperative Agreement (S)
  Accession Number: 444828
Introgression Breeding to Develop Cotton Cultivars with Desirable Seed and Fiber Quality for Sustainable Agriculture
Non-Assistance Cooperative Agreement (S)
  Accession Number: 446518
Evaluation of Current Air Quality Dispersion Models Used to Permit Low-level Agricultural Point Sources - Cotton Gins
Non-Assistance Cooperative Agreement (S)
  Accession Number: 446700
Agrivoltaics in Agricultural Processing
Non-Assistance Cooperative Agreement (S)
  Accession Number: 446772
Partnership for Improving Southwestern Specialty Crop Sustainability and Byproducts Utilization
Non-Assistance Cooperative Agreement (S)
  Accession Number: 447014

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
2024 Gin lab update - (Other)
Whitelock, D.P. 2024. 2024 Gin lab update. Annual Arizona Cotton Industry Meeting, June 13, 2024, Sedona, Arizona. Presentation only.
Evaluation of cotton cultivars and breeding lines for tolerance to monosodium methanearsonate (MSMA) under field conditions Reprint Icon - (Peer Reviewed Journal)
Zhang, J., Abdelraheem, A., Zhu, Y., Whitelock, D.P. 2024. Evaluation of cotton cultivars and breeding lines for tolerance to monosodium methanearsonate (MSMA) under field conditions. Journal of Cotton Science. 28:12-26. https://doi.org/10.56454/KQXF6064.
2024 USDA-ARS gin lab update - (Other)
Whitelock, D.P. 2024. 2024 USDA-ARS gin lab update. California Cotton Ginners and Growers Association, May 14, 2024, Tulare, California. Presentation only.
Relative cost of ginning cotton using saw, conventional roller, and high-speed roller gins in the U.S. Reprint Icon - (Peer Reviewed Journal)
Acharya, R.N., Sapkota, S., Bhandari, P., Armijo, C.B., Whitelock, D.P. 2024. Relative cost of ginning cotton using saw, conventional roller, and high-speed roller gins in the U.S. Journal of Agribusiness. https://doi.org/10.1002/agr.21946.
Reciprocating-knife and rotary-knife roller ginning of Pima and Upland cottons - (Other)
Whitelock, D.P., Armijo, C.B., Delhom, C.D., Wanjura, J.D., Tumuluru, J., Kothari, N., Martin, V. 2024. Reciprocating-knife and rotary-knife roller ginning of Pima and Upland cottons. Bremen International Cotton Conference, March 20-22, 2024, Bremen, Germany. Presentation only.
Comparison of reciprocating-knife roller-, rotary-knife roller-, and saw-ginning Pima and Upland cottons - (Abstract Only)
Whitelock, D.P., Armijo, C.B., Delhom, C.D., Wanjura, J.D., Tumuluru, J., Kothari, N., Martin, V. 2024. Comparison of reciprocating-knife roller-, rotary-knife roller-, and saw-ginning Pima and Upland cottons. National Cotton Council Beltwide Cotton Conference, Fort Worth, TX, January 3-5, 2024. p. 401-403.
Evaluation of alternative-design cotton gin lint cleaning machines on fiber length uniformity index Reprint Icon - (Peer Reviewed Journal)
Armijo, C.B., Delhom, C.D., Whitelock, D.P., Tumuluru, J., Yeater, K.M., Rowe, C., Wanjura, J.D., Sui, R., Holt, G.A., Martin, V.B., Kothari, N. 2023. Evaluation of alternative-design cotton gin lint cleaning machines on fiber length uniformity index. AgriEngineering. 5(4):2123-2138. https://doi.org/10.3390/agriengineering5040130.
Data from: Performance of a cotton gin machine that removes plastic contamination from seed cotton Reprint Icon - (Database / Dataset)
Whitelock, D.P., Armijo, C.B., Funk, P.A. 2023. Data from: Performance of a cotton gin machine that removes plastic contamination from seed cotton. Ag Data Commons. https://doi.org/10.15482/USDA.ADC/1529765.
Modeling and optimization of high-capacity experimental reclaimers to minimize the seed and lint loss during roller ginning of Upland and Pima cotton Reprint Icon - (Peer Reviewed Journal)
Tumuluru, J., Armijo, C.B., Whitelock, D.P., Funk, P.A. 2023. Modeling and optimization of high-capacity experimental reclaimers to minimize the seed and lint loss during roller ginning of Upland and Pima cotton. Processes. 11(10). Article 2868. https://doi.org/10.3390/pr11102868.
Ginning research update - (Other)
Whitelock, D.P., Tumuluru, J., Armijo, C.B. 2023. Ginning research update. New Mexico Cotton Ginners Association Conference, July 14-15, 2023, Mescalero, NM. Presentation only.
Highspeed roller ginning a Western hybrid cotton - (Other)
Whitelock, D.P., Armijo, C.B., Tumuluru, J., Thomas, J.W. 2023. Highspeed roller ginning a Western hybrid cotton. ASABE Annual International Meeting, July 9-12, 2023, Omaha, Nebraska. Presentation only.
Impact of pneumatic fractionator process conditions on the lint quality and foreign matter removal - (Other)
Tumuluru, J., Delhom, C.D., Armijo, C.B., Whitelock, D.P., Funk, P.A. 2023. Impact of pneumatic fractionator process conditions on the lint quality and foreign matter removal. ASABE Annual International Meeting. Presentation only.
USDA ginning laboratory research update - (Other)
Whitelock, D.P. 2023. USDA ginning laboratory research update. Annual Arizona Cotton Industry Meeting, May 17-18, 2023, Flagstaff, Arizona. Presentation only.
Gin lab update - (Other)
Whitelock, D.P. 2023. Gin lab update. California Cotton Ginners and Growers Association, May 10, 2023, Tulare, California. Presentation only.
Modeling the performance of two experimental high-capacity roller gin reclaimers to assess the impact of carryover to seed ratio and saw speed - (Abstract Only)
Tumuluru, J., Armijo, C.B., Whitelock, D.P., Funk, P.A. 2023. Modeling the performance of two experimental high-capacity roller gin reclaimers to assess the impact of carryover to seed ratio and saw speed. National Cotton Council Beltwide Cotton Conference, January 10-12, 2023, New Orleans, Louisiana. p. 161.
Cotton ginning research updates - (Other)
Whitelock, D.P. 2023. Cotton ginning research updates. New Mexico Cotton Ginners Association Conference, January 25, 2023, Ruidoso, NM. Presentation only.
How gins can maximize bale throughput given seasonality, cotton quality and producer decisions - (Other)
Gottula, J., Hidalgo, M., King, J., Harrison, A., Bourland, F., Whitelock, D.P., Hardin, R., Tumuluru, J., Holt, G.A., Thomas, J.W., Wanjura, J.D., Blakemore, D., Delhom, C.D., Ward, J. 2023. How gins can maximize bale throughput given seasonality, cotton quality and producer decisions. National Cotton Council Beltwide Cotton Conference, January 10-12, 2023, New Orleans, Louisiana. Presentation only.
Analysis of cotton ginning costs by technology - (Other)
Sapkota, S., Acharya, R., Whitelock, D.P., Armijo, C.B., Tumuluru, J. 2023. Analysis of cotton ginning costs by technology. National Cotton Council Beltwide Cotton Conference, January 10-12, 2023, New Orleans, Louisiana. Presentation only.
Investigating fiber quality from tabletop and commercial scale saw and roller gin stands - (Abstract Only)
Armijo, C.B., Tumuluru, J., Delhom, C.D., Whitelock, D.P., Funk, P.A., Wanjura, J.D., Kothari, N., Martin, V. 2023. Investigating fiber quality from tabletop and commercial scale saw and roller gin stands. National Cotton Council Beltwide Cotton Conference, January 10-12, 2023, New Orleans, Louisiana. p. 490-491.
Removing plastic contamination with multiple seed cotton cleaners - (Abstract Only)
Whitelock, D.P., Tumuluru, J., Armijo, C.B., Kothari, N., Martin, V. 2023. Removing plastic contamination with multiple seed cotton cleaners. National Cotton Council Beltwide Cotton Conference, January 10-12, 2023, New Orleans, LA. p. 514-516.
Progress report: Cryogenically treated gin saws - (Abstract Only)
Whitelock, D.P., Funk, P.A., Thomas, J.W., Armijo, C.B., Holt, G.A., Tumuluru, J. 2023. Progress report: Cryogenically treated gin saws. National Cotton Council Beltwide Cotton Conference, Jan. 10-12, 2023, New Orleans, LA. p. 727.
Efficiency of selection for resistance to Fusarium wilt race 4 in cotton when conducted in the field versus greenhouse Reprint Icon - (Peer Reviewed Journal)
Zhang, J., Zhu, Y., Elkins-Arce, H., Wheeler, T., Dever, J., Whitelock, D.P., Wedergaertner, T., Hake, K., Bissonnette, K. 2022. Efficiency of selection for resistance to Fusarium wilt race 4 in cotton when conducted in the field versus greenhouse. Euphytica. 218. Article 165. https://doi.org/10.1007/s10681-022-03117-6.
Studies of evaluation methods for resistance to Fusarium Wilt Race 4 (Fusarium oxysporum f. sp. vasinfectum) in cotton: Effects of cultivar, planting date, and inoculum density on disease progression Reprint Icon - (Peer Reviewed Journal)
Zhang, J., Abdelraheem, A., Zhu, Y., Elkins-Arce, H., Dever, J., Whitelock, D.P., Hake, K., Wedegaertner, T., Wheeler, T. 2022. Studies of evaluation methods for resistance to Fusarium Wilt Race 4 (Fusarium oxysporum f. sp. vasinfectum) in cotton: Effects of cultivar, planting date, and inoculum density on disease progression. Frontiers in Plant Science. 13. Article 900131. https://doi.org/10.3389/fpls.2022.900131.
Update of cotton contamination research - (Other)
Whitelock, D.P., Pelletier, M.G., Funk, P.A., Wanjura, J.D., Armijo, C.B., Holt, G.A. 2021. Update of cotton contamination research. Cotton Board California, Arizona, New Mexico Cotton State Program VMeeting. Presentation only.
Plastic contamination mitigation research update 2020 - (Proceedings)
Pelletier, M.G., Holt, G.A., Wanjura, J.D., Whitelock, D.P., Funk, P.A., Armijo, C.B., Sweers, G.J., Rutherford, R.D. 2021. Plastic contamination mitigation research update 2020. National Cotton Council Beltwide Cotton Conference.
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