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United States Department of Agriculture

Agricultural Research Service

Dr. V.R. Reddy (Research Leader)
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Click here for Contact Info, Current Projects, and Recent Publications

 

 

CURRICULUM VITA

 

NAME:                                  V. R. Reddy

 

 

RESEARCH AND OTHER SERVICES:

 

         2004 – Present   Research Leader, Crop Systems and Global Change Laboratory

 

2001 - 2004        Research Leader, Alternate Crops and Systems Laboratory

 

2000 - 2001        Acting Director, Natural Resources Institute, USDA-ARS,

                           Beltsville, MD

 

1996 - 2000        Research Leader, Remote Sensing & Modeling Laboratory, USDA-ARS,

                           Beltsville, MD

 

1995 - 1996        Research Leader, Systems Research Laboratory, USDA-ARS,

                           Beltsville, MD

 

1992 – 1995       Plant Physiologist, Systems Research Lab, USDA-ARS, Beltsville, MD

 

1990 – 1991       Visiting Scientist, Systems Research Laboratory, USDA-ARS, Beltsville,

                           MD

 

1985 – 1989       Asst. Professor, later promoted to Associate Professor, Agrl. Eng. Dept.,

                           Clemson University, Clemson, SC

 

1981 – 1985       Post-doctoral Research Associate, USDA-ARS Crop Simulation Research

                           Unit and Agronomy Dept., Miss. State, MS

 

1978 – 1981       Graduate Research Assistant, Dept. of Agronomy, Miss. State, MS

 

1976 – 1977       Technical Assistant, International Crops Research Institute for Semi-Arid

                           Tropics (ICRISAT), Hyderabad, India

 

 

MEMBERSHIP IN HONOR SOCIETIES AND PROFESSIONAL ORGANIZATIONS:

 

Gamma Sigma Delta

American Society of Agronomy

Crop Science Society of America

Biological Systems Simulation Group

Asian Association for Agricultural Engineers

 

 

HONORS AND AWARDS:

Selected to the Scientific Advisory Board (SAB) of the OECD, 2015

Fellow of the American Society of Agronomy, 2004

USDA - Agricultural Research Service, Professional Excellence and Knowledge Award for Accomplishment, Leadership and Excellence, 2004

Fellow of the Crop Science Society of America, 2003

Outstanding Scientist Award - Association of Agricultural Scientists of Indian Origin, 2003

USDA-ARS, Beltsville Area Equal Opportunity, Workplace Diversity, and Outreach Award, 2003, 2007

Leadership Award from the staff of Remote Sensing and Modeling Laboratory, 1997

Elected Vice Chairman, Cotton Production Modeling Group, 1993

 

 

RESEARCH EXPERIENCE:

 

My research has focused on photosynthesis, respiration, carbon and nitrogen metabolism and growth analysis of cotton and soybean crops in response to temperature, CO2-enrichment, drought, and growth regulators. My research has been on whole plant response to weather and various stress factors and the development of crop simulation models for the purpose of understanding crop physiology, input optimization at the farm level, to evaluate crop and pest management strategies, to predict irrigation and fertilization scheduling, and to evaluate physiological traits needed for improvements in plant breeding programs.

 

My responsibilities include developing and applying advanced systems theory to the solution of complex problems by the development of computer-aided farm decision-support systems. Providing leadership in the development of a comprehensive cotton simulation model for global warming studies. Identification of research areas that need to be investigated to develop databases for advancements in process level, mechanistic crop simulation models for cotton, soybean, wheat, corn, and potato. Specifically, to conduct basic research on the influence of elevated carbon dioxide concentrations, variable day/night temperatures, growth regulators, and soil moisture regimes on growth, phenology, photosynthesis, respiration, evapotranspiration, and plant water relations of cotton, soybean, corn, wheat, and potato. Results of these studies will be used to develop process level crop simulation models sensitive to the CO2 concentrations, temperature, water and nutrient levels. Provide team leadership in the development, testing and use of crop simulation models to make predictions about the effects of climate, soil and various management practices on crop yield, plant physiological processes and ground water pollution. Participate actively in national modeling programs to coordinate the collection of data, the development of crop simulation models, expert systems, and their integration into products that support the high-priority needs of the national agricultural community.

 

Publications:

 

Peer-Reviewed Journal Articles and Patents

 

1.      Reddy, V. R. and Rao, M. R. A preliminary study of N.P.K. requirements of turmeric (Curcuma longa L.). J. Sree Vankateswara Agrl. Col. 4:24-25. 1975.

 

2.      Rao, M. R. and Reddy, V. R. Effect of different levels of nitrogen, phosphorus, and potassium on yield of turmeric (Curcuma longa L.). J. Plantation Crops. 25:61-62. 1977.

 

3.      Fye, R. E., Reddy, V. R., and Baker, D. N. The validation of GOSSYM: Part I. Arizona conditions. Agric. Sys. 14:1-21. 1984.

 

4.      Reddy, V. R., Baker, D. N. and Jenkins, J. N. Validation of GOSSYM Part II. Mississippi conditions. Agric. Sys. 17:133-154. 1985.

 

5.      Acock, B., Reddy, V. R., Hodges, H. F., Baker, D. N. and McKinion, J. M.  Photosynthetic response of soybean canopies to full-season carbon dioxide enrichment. Agron. J. 77:942-947. 1985.

 

6.      Marani, A., Baker, D. N., Reddy, V. R. and McKinion, J. M. Effect of water stress on canopy senescence and carbon exchange rates in cotton. Crop Sci. 25:798-802. 1985.

 

7.      Reddy, V. R., Baker, D. N., Whisler, F. D. and Fye, R. E. Application of GOSSYM to yield decline in cotton. I. Systems analysis of effects of herbicides on growth, development, and yield. Agron. J. 79:42-47. 1987.

 

8.      Reddy, V. R. and Baker, D. N. Estimation of parameters for cotton simulation model GOSSYM: cultivar differences. Agric. Sys. 26:111-122. 1988.

 

9.      Reddy, V. R., Acock, B. and Acock, M. C. Seasonal carbon and nitrogen accumulation in relation to net carbon dioxide exchange in a carbon dioxide enriched soybean canopy. Agron. J. 81:78-83. 1989.

 

10.    Del Castillo, D., Acock, B., Reddy, V. R. and Acock, M. C. Elongation and branching of roots on soybean plants in a carbon dioxide enriched aerial environment. Agron. J. 81:692-695. 1989.

 

11.    Reddy, V. R., Acock, B., Hodges, H. F., McKinion, J. M. and Baker, D. N. Flowering and pod set of soybeans (Glycine max L.) in response to full-season carbon dioxide enrichment. Indian J. Exp. Bio. 27:1078-1080. 1989.

 

12.    Reddy, V. R., Acock, B., Baker, D. N. and Acock, M. Seasonal leaf area-leaf weight relationships in the cotton canopy. Agron. J. 81:1-4. 1989.

 

13.    Reddy, V. R., Baker, D.N. and McKinion, J. M. Analysis of effects of atmospheric carbon dioxide and ozone on cotton yield trends. J. Environ. Qual. 18:427-432. 1989.

 

14.    Reddy, V. R., Baker, D. N. and Hodges, H. F. Temperature and mepiquat chloride effects on cotton canopy architecture. Agron. J. 82:190-195. 1990.

 

15.    Reddy, V. R. and Baker, D. N. Application of GOSSYM to analysis of the effects of weather on cotton yields. Agrl. Sys. 32:83-95. 1990.

 

16.    Reddy, V. R., Baker, D. N., Whisler, F. D. and McKinion, J. M. Analysis of the effects of herbicides on cotton yield trends. Agrl. Sys. 33: 347-359. 1990.

 

17.    Reddy, V. R., Reddy, K. R. and Baker, D. N. Temperature effect on growth and development of cotton during the fruiting period. Agron. J. 83:211-217. 1991.

 

18.    Reddy, V. R., Baker, D. N. and Hodges, H. F. Temperature effects on cotton canopy growth, photosynthesis and respiration. Agron. J. 83:699-704. 1991.

 

19.    Hodges, H. F., Reddy, V. R. and Reddy, K. R. The effects of mepiquat chloride and temperature on seasonal canopy photosynthesis and respiration of cotton during fruiting. Crop Sci. 31:1302-1308. 1991.

 

20.    Reddy, K. R., Hodges, H. F. and Reddy, V. R. Temperature effects on cotton fruit retention. Agron. J. 84:26-30. 1992.

 

21.    Reddy, K. R., Reddy, V. R. and Hodges, H. F. Temperature effects on early season cotton growth and development. Agron. J. 84:229-237. 1992.

 

22.    Reddy, V. R., Trent, A. and Acock, B. Mepiquat chloride and irrigation effects on cotton growth and development. Agron. J. 84:930-933. 1992.

 

23.    Whisler, F. D., Reddy, V. R., Baker, D. N. and McKinion, J. M. Analysis of the effects of soil compaction on yield trends. Agrl. Sys. 42:199-207. 1993.

 

24.    Baker, D. N., Reddy, V. R. McKinion, J. M. and Whisler, F. D.  An analysis of the impact of lygus on cotton. Computers and Electronics in Agriculture 9:147-161. 1993.

 

25.    Reddy, V. R. Modeling mepiquat chloride-temperature interactions in cotton: The model. Computers and Electronics in Agriculture 8:227-236. 1993.

 

26.    Reddy, V. R. Modeling cotton growth and phenology in response to temperature. Computers and Electronics in Agriculture 10:63-73. 1994.

 

27.    Reddy, V. R., Reddy, K. R. and Acock, B. Carbon dioxide and temperature effects on cotton leaf initiation and development. Biotronics 23:59-74. 1994.

 

28.    Reddy, V. R., Reddy, K. R., Acock, M. C. and Trent, A. Carbon dioxide enrichment and temperature effects on root growth in cotton. Biotronics 23:47-57. 1994.

 

29.    Reddy, V. R., Pachepsky, L. B. and Acock, B. Response of crop photosynthesis to CO2, temperature, and light: Experimentation and modeling. HortScience 29:1415-1422. 1994.

 

30.    Pachepsky, L. B., Reddy, V. R. and Acock, B. Cotton canopy photosynthesis model for predicting the effect of temperature and elevated carbon dioxide concentration. Biotronics 23:35-46. 1994.

 

31.    Reddy, V. R., Reddy, K. R. and Hodges, H. F. Carbon dioxide enrichment and temperature effects on cotton canopy photosynthesis, transpiration, and water use efficiency. Field Crops Research 41:13-23. 1995.

 

32.    Reddy, V. R. Modeling ethephon-temperature interactions in cotton. Computers and Electronics in Agriculture 13:27-35. 1995.

 

33.    Reddy, V. R., Acock, B. and Whisler, F. D. Crop management and input optimization with GLYCIM: differing cultivars. Computers and Electronics in Agriculture 13:37-50. 1995.

 

34.    Reddy, V. R., Reddy, K. R. and Acock, B. Carbon dioxide and temperature interactions on stem extension, node initiation, and fruiting in cotton. Agriculture, Ecosystems and Environment 55:17-28. 1995.

 

35.    Acock, B. and Reddy, V. R. Designing an object-oriented structure for crop models. Ecological Modeling 94:33-44. 1997.

 

36.    Wang, Z., Reddy, V. R. and Quebedeaux, Q. Growth and photosynthetic responses of soybean to short-term cold temperature. Environmental and Experimental Botany 37:13-24. 1997.

 

37.    Reddy, V. R., Wang, Z. and Reddy, K. R. Growth responses of cotton to aldicarb and temperature. Environmental and Experimental Botany 38:39-48. 1997.

 

38.    Reddy, V. R., Reddy, K. R. and Wang, Z. Temperature and aldicarb effects on cotton root growth and development. Biotronics 26:1-11. 1997.

 

39.    Reddy, V. R., Pachepsky, Y. A. and Marani, A. Carbon Partitioning in cotton and soybean crops in southern US under climate change conditions. World Resource Review 9:359-371. 1997.

 

40.    Reddy, V. R., Reddy, K. R. and Wang, Z. Cotton responses to nitrogen, carbon dioxide, and temperature interactions. Soil Sci. Plant Nutr. 43:1125-1130. 1997.

 

41.    Acock, B., Pachepsky, Y. A., Acock, M. C., Reddy, V. R. and Whisler, F. D. Modeling Soybean cultivar development rates using field data from the Mississippi Valley. Agron. J. 89:994-1002. 1997.

 

42.    Wang, Z., Reddy, V. R. and Acock, M. C. Testing for Early Photoperiod Insensitivity in Soybean. Agron J. 90:389-392. 1998.

 

43.    Reddy, V. R., Pachepsky, Y. A. and Whisler, F. D. Allometric Relationships in Field-grown Soybean. Annals of Botany. 82:125-131. 1998.

 

44.    Wang, Z. and Reddy, V. R. Short-term Exposure to Low Temperature Affects Growth and Development of Soybean Grown in Increasing and Decreasing Day lengths. Biotronics 27:21-31. 1998.

 

45.    Watkins, K. B., Lu, Y. C. and Reddy, V. R. An Economic Evaluation of Alternative Pix Application Strategies for Cotton Production Using GOSSYM/COMAX. Computers and Electronics in Agriculture 20:251-262. 1998.

 

46.    Acock, B., Pachepsky, Y. A., Mironenko, E. V., Whisler, F. D. and Reddy, V. R. GUICS: A Generic User Interface for On-Farm Crop Simulations Agron. J. 91:657-665. 1999.

 

 

47.    Reddy, V. R., Timlin, D. J. and Pachepsky, Y. A. Quantitative Description of Plant Density Effects on Branching and Light Interception in Soybean. Biotronics 28:73-85. 1999.

 

48.    Sainju, U. M., Singh, B. P., Rahman, S. and Reddy, V. R. Soil Nitrate-Nitrogen under Tomato following Tillage, Cover Cropping, and Nitrogen Fertilization. J. Environ. Qual. 28:1837-1844. 1999.

 

49.    Reddy, V. R. and Pachepsky, Y. A. Predicting Crop Yields under Climate Change Conditions from Monthly GCM Weather Projections. Environmental Modeling & Software 15:79-86. 2000.

 

50.    Sainju, U. M., Singh, B. P., Rahman, S. and Reddy, V. R. Tomato Root Growth is influenced by Tillage, Cover Cropping, and Nitrogen Fertilization. HortScience 35:78-82. 2000.

 

51.    Sainju, U. M., Singh, B. P., Rahman, S. and Reddy, V. R. Tillage, Cover Cropping, and Nitrogen Fertilization Influence Tomato Yield and Nitrogen Uptake. HortScience 35:217-221. 2000.

 

52.    Pachepsky, L. B., Lu, Z. and Reddy, V. R. Analysis of Abaxial and Adaxial Stomatal Regulation in Leaves of Pima Cotton (Gossym barbadence l.) Using the 2DLEAF, Two-Dimensional Model of Leaf Gas Exchange. Biotronics 29:79-95. 2000.

 

53.    Reddy, V. R. and Pachepsky, Y. A. Testing a convective-dispersive model of two-dimensional root growth and proliferation in a greenhouse experiment with maize plants. Annals of Botany 87:759-768. 2001.

 

54.    Baker, J. T., Leskovar, D. I., Reddy, V. R. and Dainello, F. J. A simple Phenology Model of Muskmelon Development. Annals of Botany 87:615-621. 2001.

 

55.    Baker, J. T. and Reddy, V. R. Temperature Effects on Phenological Development and Yield of Muskmelon. Annals of Botany 87:605-613. 2001.

 

56.    Timlin, D. J., Pachepsky, Y. A. and Reddy, V. R. Soil Water Dynamics in row and interrow position in Soybean (Glycine max L.). Plant and Soil 237:25-35. 2001.

 

57.    Reddy, K. R., Hodges, H. F., Read, J. J., McKinion, J. M., Baker, J. T., Tarpley, L. and Reddy, V. R. Soil-Plant - Atmosphere-Research (SPAR) Facility: A Tool for Plant Research and modeling. Biotronics 30: 27-50. 2001.

 

58.    Lu, Y. C. and Reddy, V. R. Economic Analysis of Pix (Mepiquat Chloride) Application Strategies. Agricultural Engineering Journal 11:133-143. 2002.

 

59.    Pachepsky, Y. A., Reddy, V. R., Pachepsky, L. B., Whisler, F. D. and Acock, B.  Modeling Soybean Vegetative Development in the Mississippi Valley. Biotronics (IJOB) 31: 11-24. 2002.

 

60.    Rao, S. C., Saxena, K. B., Pachepsky, L. B. and Reddy, V. R. Modeling Pigeonpea Phenology. Biotronics (IJOB) 31: 85-100. 2002.

 

61.    Reddy, V. R. and Pachepsky, Y. A. Temperature Effects on Node Development Rates in Cotton. Biotronics (IJOB) 31:101-111. 2002.

 

62.    Reddy, V. R., Pachepsky, L. B. and Whisler, F. D. Effects of Temperature and Photoperiod on Development Rates of Nine Soybean Varieties in the Mississippi Valley. Acta Hort. 593:201-207. 2002.

 

63.    Anbumozhi, V., Reddy, V. R., Lu, Y. C. and Yamaji, E. The role of crop simulation models in agricultural research and development. Agricultural Engineering Journal 12:1 - 18. 2003.

 

64.    Reddy, T. Y., Reddy, V. R. and Anbumozhi, V. Physiological Responses of Groundnut (Arachis hypogaea L) to Drought Stress and its Amelioration: A Review. Acta Agronomica Hungarica, 51(2): 205-227. 2003.

 

65.    Ferreyra, R. A., Dardanelli, J. L., Pachepsky, L. B., Collino, D. J., Faustinelli, P.C., Giambastiani, G., Reddy, V. R. and Jones, J. W. Nonlinear effects of water stress on peanut photosynthesis at crop and leaf scales. Ecological Modeling 168: 57-76. 2003.

 

66.    Krizek, D. T., Gitz, D. C., Ritchie, J. C. and Reddy, V. R. Biomass Accumulation and partitioning of Eastern Gamagrass Grown under Different Temperature and CO2 Levels. Acta Horticulture 638:293-299. 2004.

 

67.    Kim, S. H., Reddy, V. R., Baker, J. T., Gitz, D. C. and Timlin, D. J. Quantification of Photosynthetically Active Radiation inside Sunlit Growth Chambers. Agriculture & Forestry Meteorology 126:117-127. 2004.

 

68.    Baker J. T., Kim, S. H., Gitz, D. C., Timlin, D. J. And Reddy, V. R. Estimating Carbon Dioxide Leakage Rates in Controlled Environment Chambers Using Nitrous Oxide. Environmental and Experimental Botany 51:103-110. 2004.

 

69.    Reddy, K. R., Koti, S., Davidonis, G. H., and Reddy, V. R. Interactive Effects of Carbon Dioxide and Nitrogen Nutrition on Cotton Growth, Development, and Yield, and Fiber Quality. Agron. J. 96:1148-1157. 2004.

 

70.    Koti, S. ,Reddy, K. R., Kakani, V. G., Zhao, D. and Reddy, V. R. Soybean (Glycine max) Pollen Germination Characteristics, Flower and Pollen Morphology in Response to Enhanced Ultraviolet-B Radiation. Annals of Botany 94:855-864. 2004.

 

71.    Baker, J. T., Kim, S. H., Gitz, D. C., Timlin, D. J. and Reddy, V. R. Photosynthesis and Yield of Southern U.S.A. Rice Cultivars in Response to CO2 and Temperature. Journal of Agricultural Meteorology 60:457-462. 2005

 

72.    Koti, S., Reddy, K. R., Reddy, V. R., Kakani, V. G. and Zhao, D. Interactive effects of Carbon dioxide, temperature, and ultraviolet-B radiation on soybean (Glycine max L.) flower and pollen morphology, pollen production, germination, and tube lengths. Journal of Experimental Botany 56:725-736. 2005.

 

73.    Zhao, D., Reddy, K. R., Kakani, V. G. and Reddy, V. R. Nitrogen deficiency effects on plant growth, leaf photosynthesis, and hyperspectral reflectance properties of sorghum. European Journal of Agronomy 22:391-403. 2005.

 

74.    Kakani, V. G., Reddy, K. R., Koti, S., Wallace, T. P., Prasad, P. V. V., Reddy, V. R. and Zhao, D. Differences in in vitro pollen germination and pollen tube growth of cotton cultivars in response to high temperature. Annals of Botany 96:59-67. 2005.

 

75.    Niu, G., McConnell, L. and Reddy, V. R. Propylene Glycol Vapor Contamination in Controlled Environment Growth Chambers: Toxicity to Corn and Soybean Plants. Journal of Environmental Science and Health 40:443-448. 2005.

 

76.    Kim, S. H., Sicher, R. C., Bae, H., Gitz, D. C., Baker, J. T., Timlin, D. J. and Reddy, V. R. Canopy photosynthesis, evapotranspiration, leaf nitrogen, and transcription profiles of maize in response to CO2 enrichment. Global Change Biology 12: 588-600. 2006.

 

77.    Fleisher, D. H., Shillito, R. M., Timlin, D. J., Kim, S. H. and Reddy, V. R. Approaches to Modeling Potato Leaf Appearance Rate. Agron. J. 98:522-528. 2006

 

78.    Timlin, D. J., Lutfor Rahman, S. M., Baker, J. T., Reddy, V. R., Fleisher, D. H. and Quebedeaux, B. Whole Plant Photosynthesis, Development, and Carbon Partitioning in Potato as a Function of Temperature. Agron. J. 98:1195-1203. 2006.

 

79.    Fleisher, D. H., Timlin, D. J. and Reddy, V. R. Temperature Influence on Potato Leaf and Branch Distribution and on Canopy Photosynthetic Rate. Agron. J. 98:1442-1452. 2006.

 

80.    Koti, S., Reddy, K. R., Lawrence, G. W., Reddy, V. R., Kakani, V. G., Zhao, D. and Gao, W. Effect of Enhanced UV-B Radiation on Reniform Nematode (Rotylenchus reniformis Linford and Oliveira) Populations in Cotton (Gossypium Hirsutum L.). Plant Pathology Journal 6(1): 51-59. 2007.

 

81.    Timlin, D. J., Fleisher, D. H., Kim, S. H., Reddy, V. R. and Baker, J.T. Evapotranspiration measurement in controlled environment chambers: A comparison between time domain reflectometry and accumulation of condensate from cooling coils. Agron. J. 99:166-173. 2007.

 

82.    Kim, S. H., Gitch, D. C., Sicher, R. C., Baker, J. T., Timlin, D. J. and Reddy, V. R. Temperature dependence of growth, development, and photosynthesis in maize under elevated CO2. Environmental and Experimental Botany 61:224-236. 2007.

 

83.    Fleisher, D. H., Timlin, D. J. and Reddy, V. R. Elevated carbon dioxide and water stress effects on potato canopy gas exchange, water use, and productivity. Agricultural and forest meteorology 148:1109-1122. 2008.

 

84.    Fleisher, D. H., Timlin, D. J. and Reddy, V. R. Interactive Effects of Carbon and Water Stress on Potato Canopy Growth and Development. Agron J. 100:711- 719. 2008.

 

85.    Shillito, R. M., Timlin, D. J., Fleisher, D. H., Reddy, V. R. and Quebedeaux, B. Yield response of potato to spatially patterned nitrogen application. Agriculture, Ecosystems and Environment 129:107-116. 2009.

 

86.    Yang, Y., Timlin, D. J., Fleisher, D. H., Kim, S. H., Quebedeaux, B. and Reddy, V. R. Simulating leaf area of corn plants at contrasting water status. Agricultural and Forest Meteorology 149:1161-1167. 2009.

 

87.    Alva, A., Marcos, J., Stockle, C., Reddy, V. R. and Timlin, D. J. A Crop Simulation Model for Prediction of Yield and Fate of Nitrogen in Irrigated potato Rotation Cropping System. J. of Crop Improvement. 24:142-152. 2010.

 

88.    Fleisher, D. H., Timlin, D. J., Yang, Y. and Reddy, V. R. Simulation of Potato Gas Exchange Rates Using SPUDSIM. Agricultural and Forest Meteorology 150:432-442. 2010.

 

89.    Chun J. A., Wang, Q., Timlin, D. J., Fleisher, D. and Reddy, V. R. Effect of Elevated Carbon Dioxide and Water Stress on Gas Exchange and Water Use Efficiency in Corn. Agricultural and forest meteorology 151:378-384. 2011.

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90.    Ephrath, J. E., Timlin, D. J., Reddy, V. R. and Baker, J. T. Irrigation and Elevated Carbon Dioxide Effects on Whole Canopy Photosynthesis and Water Use Efficiency in Cotton (Gossypium Hirsutum L.). Plant Biosystems, 145: 202-215. 2011.

 

91.    Krishnan, P., Ramakrishnan, B., Reddy, K. R. and Reddy, V. R. High Temperature Effects on Rice Growth, Yield and Grain Quality. Advances in Agronomy 111: 87-205. 2011.

 

92.    Fleisher, D. H., Timlin, D. J., Yang, Y. and Reddy, V. R. Potato Stem Density Effects on Canopy Development and Production. Potato Research 54:137-155. 2011.

 

93.    Yang, Y., Timlin, D. J., Fleisher, D.H., Lokhande, S. B., Chun, J. A., Kim, S. H., Staver, K. and V. R. Reddy. Nitrogen Concentration and Dry-Matter Accumulation in Maize Crop: Assessing Maize Nitrogen Status with an Allometric Function and a Chlorophyll Meter. Communications in Soil Science and Plant Analysis 43:1563-1575. 2012.

 

94.    Wang, Q., Fleisher, D.H., Timlin, D. J., Reddy, V. R. and Chun, J. A. Quantifying the Measurement Errors in a Portable Open Gas-exchange System and Their Effects on the Parameterization of Farquhar et al. Model for C3leaves. Photosynthetica 50(2):223-238. 2012.

 

95.    Fleisher, D. H., Wang, Q., Timlin, D. J., Chun, J. A. and Reddy, V. R. Response of Potato Gas Exchange and Productivity to Phosphorus Deficiency and Carbon Dioxide Enrichment. Crop Science 52:1803-1815. 2012.

 

96.    Kim, S. H., Yang, Y., Timlin, D. J., Fleisher, D.H., Dathe, A., Reddy, V. R. and Staver, K. Modeling Temperature Responses of Leaf Growth, Development, and Biomass in Maize with MAIZSIM. Agnon. J. 104:1523-1537. 2012.

 

97.    Resop, J. P., Fleisher, D.H., Wang, Q., Timlin, D. J. and Reddy, V. R. Combining Explanatory Crop Models with Geospatial Data for Regional Analysis of Crop Yield Using Field-Scale Modeling Units. Computers and Electronics in Agriculture 89:51-61. 2012.

 

98.    Fleisher, D. H., Barnaby, J., Sicher, R., Respo, J. P., Timlin, D. J. and Reddy, V. R. Effects of Elevated CO2 and Cyclic drought on potato under varying radiation regimes. Agricultural and Forest Meteorology 171:270-442. 2013.

 

99.    Reddy, K. R., Singh, S. K., Koti, S., Kakani, V. G., Zhao, D., Gao, W. and Reddy, V. R. Quantifying the Effects of Corn Growth and Physiological Responses to Ultraviolet-B Radiation for Modeling. Agron. J. 105:1367-1377. 2013.

 

100.  Singh, S. K., Badgujar, G. B., Reddy, V. R., Fleisher, D. H. and Timlin, D. J. Effect of Phosphorus Nutrition on Growth and Physiology of cotton under Ambient and Elevated Carbon Dioxide. J Agro Crop Sci. 199:436-448. 2013.

 

101.  Singh, S. K., Badgujar, G. B., Reddy, V. R., Fleisher, D. H. and Bunce, J. A. Carbon Dioxide Diffusion Across Stomata and Mesophyll and Photo-Biochemical Processes as Affected by Growth CO2 and Phosphorus Nutrition in Cotton. Journal of Plant Physiology. 170:801-813. 2013.

 

102.  Barnaby, J. Y., Kim, M., Bauchan, G., Bunce, J. A., Reddy, V. R., and Sicher, R. C. Drought Responses of Foliar Metabolites in Three Maize Hybrids Differing in Water Stress Tolerance. PLoS ONE 8(10): e77145. 2013.

 

103.  Lokhande, S., Timlin, D. J., Salokhe, V. M. and Reddy, V. R. Simulation and Assessment of Planting Date and Climatic Effects on Soybean (Glycine Max L.) Yields in Thailand Using GLYCIM. Journal of Tropical Agriculture 51: 30-41. 2013.

 

104.  Singh, S. K., Reddy, K. R., Reddy, V. R. and  Gao, W.  Maize Growth and  Developmental  Responses to Temperature and Ultraviolet-B Radiation Interaction. Photosynthetica 52(2): 262-271. 2014.

 

105.  Dathe, A., Fleisher, D. H., Timlin, D. J., Fisher, J. K., and Reddy, V. R. Modeling Potato Root Growth and water uptake Under Water Stress Conditions. Agricultural and Forest Meteorology. 194:37-49. 2014

 

106.  Singh, S. K., Reddy, V. R., Fleisher, D. H., and Timlin, D. J.  Growth, Nutrient Dynamics, and Efficiency Responses to Carbon Dioxide and Phosphorus Nutrition in Soybean. Journal of Plant Interactions. 9:838-849. 2014

 

107.  Singh, S. K., Reddy, V. R. Combined Effects of Phosphorus Nutrition and Elevated Carbon Dioxide Concentration on Chlorophyll Fluorescence, Photosynthesis and Nutrient Efficiency of Cotton. J. Plant Nutr. Soil Sci.  xx:xxx-xxx, 2014

 

108.  Yang, J., Sicher, R. C., , Kim, M. S., Reddy, V. R.  Carbon Dioxide Enrichment Restrains the Impact of Drought on Three Maize Hybrids Differing in Water Stress Tolerance in Water Stressed Environments. International Journal of Plant Biology. 5:5255, 38-44. 2014

 

109.  Fleisher, D..H., Dathe, A., Timlin, D. J., and Reddy, V. R. Improving Potato Drought Simulations: Assessing Water Stress Factors Using Coupled Model. Agricultural and Forest Meteorology. 200:144-155. 2015

 

110.  Barnaby, J. Y., Fleisher, D. H., Reddy, V. R., and Sicher, R. C. Combined Effects of CO2 Diurnal Light Levels and Water Stress on Foliar metabolites of Potato Plants Grown in Naturally Sunlit Controlled Environment Chambers. Physiologia Plantarum 153:243-252. 2015

 

Additional Publications

 

111.  Reddy, V. R. Studies on the effect of different levels of nitrogen, phosphorous and potassium on growth, yield and quality of turmeric (Curcuma longa L.). A. P. Agricultural University, A. P., India, 63 pages. (M. Sc. Thesis). 1976.

 

112.  Baker, D. N., Landivar, J. A., Whisler, F. D. and Reddy, V. R. Plant responses to environmental conditions and modeling plant development. In: Proc. Weather and Agrl. Sym. PP. 69-109. Oct. 1-2, 1979, Kansas City, KS. 1979.

 

113.  Reddy, V. R. Validation of the cotton simulation model GOSSYM. Mississippi State University, Mississippi State, MS 39762, 151 pages. (Ph.D. Dissertation). 1981.

 

114.  Fye, R. E., Reddy, V. R. and Baker, D. N. Cotton plants: A preliminary GOSSYM model for Arizona. Adv. Agrl. Tech. AAT-W-18:1-36. 1981.

 

115.  Acock, B., Reddy, V. R., Whisler, F. D., Baker, D. N., McKinion, J. M., Hodges, H. F. and Boote, K. J. The soybean crop simulator GLYCIM: Model documentation 1982. PB85171163/AS U. S. Dept. of Agric., Washington, DC. Available from NTIS, Springfield, VA. pp. 1-322. (Technical Research Report). 1982.

 

116.  Acock, B., Baker, D. N., Reddy, V. R., McKinion, J. M., Whisler, F. D., Del Castillo, D. and Hodges, H. F. Response of vegetation to carbon dioxide. #004 in series: Soybean responses to carbon dioxide: Measurement and simulation. Joint program of the U. S. Dept. of Energy and U. S. Dept. of Agriculture, Mississippi State, MS, pp.1-95. (Technical Research Report). 1982.

 

117.  Acock, B., Reddy, V. R., Baker, D. N., McKinion, J. M., Whisler, F. D., Del Castillo, D. and Hodges, H. F. Response of vegetation to carbon dioxide. #008 in series. Soybean response to carbon dioxide: Measurement and simulation. Joint program of the U. S. Dept. of Energy, Carbon Dioxide Research Division, and the U. S. Dept. of Agriculture, Agricultural Res. Service, Mississippi State, MS. pp. 1-163. (Technical Research Report). 1983.

 

118.  Acock, B., Acock, M. C., Reddy, V. R. and Baker, D. N. The simulation with GLYCIM of soybean crops grown in the field and at various carbon dioxide concentrations in open-top chambers. #011 in series: Response of vegetation to carbon dioxide. U.S. Department of Energy, Carbon Dioxide Research Division, Office of Energy Research, Washington, DC 20545, 47 pp. (Technical Research Report). 1985.

 

119.  Whisler, F. D., Baker, D. N. and Reddy, V. R. Modeling soil physical processes in certain crop growth models. Proc. of 1983 Natural Resources Modeling Symposium. pp. 266-269, Pingree Park, CO, Oct. 16-21. 1985.

 

120.  Reddy, V. R., Baker, D. N., Whisler, F. D., Wanjura, D. F., Barker, G. L. and McKinion, J. M. Yield and productivity in cotton: systems analysis of factors affecting crop yields. PP. 1-142. Yield and Productivity Study in Cotton, National Cotton Council, Memphis, TN. (Technical Research Report). 1987.

 

121.  Whisler, F. D., Acock, B., Baker, D. N., Fye, R. E., Hodges, H. F., Lambert, J. R., Lemmon, H., McKinion, J. M. and Reddy, V. R. Crop simulation models in agronomic systems. Advances in Agronomy 40:141-208. 1987.

 

122.  Reddy, V. R., Reddy, K. R., Hodges, H. F. and Baker, D. N. The effect of temperature on growth, development, and photosynthesis of cotton during the fruiting Period. p. 97-110, Proc. of a symposium organized by the British Soc. For Plant Growth Regulation and the Plant Growth Regulator Soc. of America, Special Symposium on Climate and Agriculture, Arlington, VA, August 6-10. 1989.

 

123.  Reddy, V. R., Reddy, K. R., Hodges, H. F. and Baker, D. N. The effect of temperature on growth, development, and photosynthesis of cotton during the fruiting period. In: Mechanisms of plant perception and response to environmental stimuli. British Society for Plant Growth Regulation, Monograph No. 20., p. 97-110. 1990.

 

124.  Reddy, V. R., Hodges, H. F. and Reddy, K. R. Streamlining agricultural information from the scientist to the economic users through simulation models. Intl. Agric. Eng. Conf., Bangkok, Thailand, Dec. 3-6, 1990. pp. 1213-1222. 1990.

 

125.  Hodges, H. F., Reddy, K. R., McKinion, J. M. and Reddy, V. R. Temperature effects on cotton. A MAFES Bulletin, Mississippi Agrl. and For. Expt., Mississippi state, MS. p1-15. 1993.

 

126.  Reddy, V. R. Modeling cotton responses to temperature: Growth and phenology. In V. M. Salokhe and Gajendra Singh (ed.) Proc. Intl. Agrl. Eng. Conf., Bangkok, Thailand, 6-9 December 1994, p. 461-467. 1994.

 

127.  Reddy, V. R., Acock, B. and Whisler, F. D. Crop management and input optimization using the soybean model GLYCIM. In V. M. Salokhe and Gajendra Singh (ed.) Proc. Intl. Agrl. Eng. Conf., Bangkok, Thailand, 6-9 December 1994, p. 453-460. 1994.

 

128.  Acock, B., Reddy, V. R., Pachepsky, Y. A. and Whisler, F. D. Water management with the soybean crop model GLYCIM. pp. 49-52, In L. Ahuja, J. Leppert and K. Rojas (eds.) Proceedings of the 1995 Workshop on Computer Application in Water management, Colorado State University, Fort Collins, CO 80523, Information series No. 79. 1995.

 

129.  Amonson, P., Trent, A., Acock, B. and Reddy, V. R. Wingly: A soybean simulation for windows- user's manual. Version 1.0. USDA. 53pp. (Software documentation). 1995.

 

130.  Amonson, P., Trent, A., Acock, B. and Reddy, V. R. Wingly: a soybean simulation for windows- user's manual. Version 1.1 USDA. 56pp. (Software documentation). 1995.

 

131.  Reddy, V. R. Response of cotton canopies to CO2 enrichment and temperature. In Takesh Horie (ed.) Crop Research in Asia: Achievements and Perspective, Proceedings of the 2nd Asian Crop Science Conf., Fukui, Japan, 21-23 August 1995, p. 81-85. 1996.

 

132.  Trent, A., Acock, B. and Reddy, V. R. Wingly: a soybean simulation for windows-user's manual. USDA. 64pp. (Software documentation). 1996.

 

133.  Acock, B., Mironenko, E., Pachepsky, Y. and Reddy, V. R. GUICS: Graphical User Interface for Crop Simulation with Windows 95, Version 1.2. USDA. 40pp. (Software documentation). 1996.

 

134.  Timlin, D., Pachepsky, Y. and Reddy, V. R. Infiltration and water uptake in row and interrow positions in soybean (Glycine max L.). In B. Mulik and Suresh Dhumal (ed.) Proc. Intl. Agrl. Eng. Conf., Pune, India, 9-12 December 1996, p. 335-343. 1996.

 

135.  Reddy, V. R., Pachepsky, Y. A., Whisler, F. D. and Acock, B. A Survey to Develop Decision-Support System for soybean Crop Management. Vol. IV, p. 11-18, Proc. 1997 ACSM-ASPRS Annual Convention and Exhibition, April 7-10, 1997, Seattle, WA. 1997.

 

136.  Acock, B., Mironenko, E., Pachepsky, Y. and Reddy, V. R. GUICS: Graphical User Interface for Crop Simulation with Windows 95, Version 1.6, USDA:ARS:RSML, 59pp, March 25, 1997. (Software documentation). 1997.

 

137.  Reddy, V. R., Reddy, K. R. and Wang, Z. Cotton Responses to Nitrogen, Carbon dioxide, and Temperature Interactions. In Ando T., Fujita K., Mae T., Matsumoto H., Mori S., and Sekiya J. (Eds.), Developments in Plant and Soil Science: Plant Nutrition for Sustainable Food Production and Environment, (Kluwer Academic Publishers: Dordrecht, The Netherlands) 78:867-872. 1997.

 

138.  Reddy, V. R. Root growth of cotton as influenced by CO2 and temperature. In Arie Altman and Yoav Waisel (Eds.), Biology of Root Formation and Development, Basic Life Sciences,(Plenum Press, New York and London) 65:237-241. 1997.

 

139.  Reddy, V. R. and Pachepsky, Y. A. Input Optimization and Crop Management Using Decision-support System GLYCIM/GUICS. In A. David McDonald and Michael McAleer (Eds.), Proc. International Congress on Modeling and Simulation 3:1143-1147. 1997.

 

140.  Acock, B., Mironenko, E., Pachepsky, Y. and Reddy, V. R. GUICS: Graphical User Interface for Crop Simulators with Windows 95, Version 1.7, USDA: ARS: RSML, 63pp, March 25, 1998. (Software documentation). 1998.

 

141.  Reddy, K. R. and Reddy, V. R. Cotton Phenology and Growth Processes: Model Development. Proc. Of the World Cotton Research Conference-2, pp. 526-529. 1998.

 

142.  Reddy, V. R. and Reddy, K. R. Soil Plant Atmosphere Research (SPAR) Facility - A Unique Source of Data for Process Level Crop Modeling. In V. M. Salokhe and Zhang Jianxia (ed.) Proc. Intl. Agrl. Eng. Conf., Vol. II, Bangkok, Thailand, 6-9 December 1998, pp. 639-647. 1998.

 

 

143.  Reddy, V. R., Boone, M., Pachepsky, Y. and Whisler, F. D. Validation data bases for crop Simulators: Design, Assembling, Delivery, and Use. In V. M. Salokhe and M. Babul Hossain (ed.) Proc. Intl. Agrl. Eng. Conf., Bangkok, Thailand, 4-7 December 2000, p. 472-480. 2000.

 

144.  Timlin, D. J., Pachepsky, Y., Whisler, F. D. and Reddy, V. R. Experience with On-Farm Applications of GLYCIM/GUICS In L. R. Ahuja, L. Ma, and T. A. Howell(ed.)Agricultural System Models in Field Research and Technology Transfer, Lewis Publishers, A CRC Press Company, London, New York(Book Chapter). 2002.

 

145.  Reddy, V. R., Reddy, K. R., Sailaja, K., Richardson, A. G., Kakani, V. G. and Zhao, D.  Cotton Modeling: Advances and Gaps in Our Ability to Assess Climate Change, Crop Management, Economic and Environmental Policy Decisions. Proc. Of the World Cotton Research Conference-3, pp. 881-895, March 9-13, 2003, Cape Town, South Africa. 2003.

 

146.  Gitz, D. C., Ritchie, J. C., Baker, J. T., Krizek, D. T. and Reddy, V. R. Temperature and CO2 Effects on Eastern Gamagrass: Photosynthetic Performance. In: Randle, J. And Burns, J.C.(Eds.) Proc. of the 3rd Ann. Eastern Native Grass Symposium, The North Carolina Botanical Garden, Chapel Hill, NC, Oct. 1-3, 2002, Omnipress, Madison, WI. P. 203-210.(Peer reviewed Proceedings). 2004.

 

147.  Ritchie, J. C., Gitz, D. C., Krizek, D. T. and Reddy, V. R. Temperature and CO2 Effects on Eastern Gamagrass: Growth and Yield. In: Randle, J. And Burns, J.C.(Eds.) Proc. of the 3rd Ann. Eastern Native Grass Symposium, The North Carolina Botanical Garden, Chapel Hill, NC, Oct. 1-3, 2002, Omnipress, Madison, WI. P. 211-217.(Peer reviewed Proceedings). 2004.

 

148.  Kim, S. H. and Reddy, V. R. Simulating maize development using a nonlinear temperature response model. Proc. Of the 4th International Crop Science Congress, September 26-October 1, 2004, Brisbane, Australia. (5 pages). 2004.

 

149.  Marcos, J., Alva, A., Stockle, C., Timlin, D. and Reddy, V. R. CroSyst VB-Simpotato, a crop simulation model for potato-based cropping systems: I. Model development. Proc. Of the 4th International Crop Science Congress, September 26-October 1, 2004, Brisbane, Australia.(5 Pages). 2004.

 

150.  Alva, A., Marcos, J., Stockle, C., Reddy, V. R. and Timlin, D. CroSyst VB-Simpotato, a crop simulation model for potato-based cropping systems: II. Evaluation of Nitrogen Dynamics. Proc. Of the 4th International Crop Science Congress, September 26-October 1, 2004, Brisbane, Australia.(5 pages). 2004.

 

151.  Reddy, V. R. and Anbumozhi, V. Development and Application of Crop Simulation Models for Sustainable Natural Resource Management. Proceedings of the 2004 CIGR International Conference, Oct 11 - 14, 2004, Beijing, China. pp.1-4. 2004.

 

152.  Shillito, R. M., Timlin, D. J., Fleisher, D. H., Reddy, V. R. and Quebedeaux, B. Landscape-scale agricultural experimentation: spatial autocorrelation and potato yield. In Mulla, D. J. et al. (ed.) Proc. Of the 7th Intl. Conf. on Precision Agriculture. ASA, CSSA, and SSSA, Madison, WI. [CDROM]. 2004.

 

153.  Taylor, J. E., Bellarmine, T. G., Timlin, D. J. and Reddy, V. R. Developing Appropriate Technology for Small-scale Farming Populations. Environmental Informatics Archives. 2:10-14. (peer reviewed proceedings). 2004.

 

154.  Reddy, V. R., Anbumozhi, V. and Reddy, K. R. Achieving Food Security and Mitigating Global Environmental Change: Is There a Role for Crop Models in Decision Making? Proceedings of the International Agricultural Engineering Conference, Bangkok, Thailand, Dec. 6 – 9, 2005, pp. 1 -8. 2005.

 

155.  Gitz, D. C., Ritchie, J. C., Krizek, D. T., Springer, T. L., Reeves III, J. B., Reddy, V. R. Effect of Temperature and CO2 on Forage Nutritive Value of 'Pete' Eastern Gamagrass. IN: Sanderson, M.A., Adler, P., Goslee, S., Ritchie, J.C., Skinner, H., and Soder, K. (Editors). Proceedings of the Fifth Eastern Native Grass Symposium, October 10-13, 2006, Harrisburg, Pennsylvania. p107-114. 2006.

 

156.  Fleisher, D. H., Timlin, D. J., Yang, Y. and Reddy, V. R. Simulation of Potato Gas Exchange Using SPUDSIM. Proc. Of the American Society of Agricultural and Biological Engineers, 2007 ASABE Annual International Meeting, Minneapolis, Minnesota, June 17-20, 2007, Paper Number: 073013, pp 1– 12. 2007.

 

157.  Reddy, V. R., Yang, Y., Reddy, K. R., Timlin, D. J. and Fleisher, D. H. Cotton Modeling for Climate Change, on-farm Decision Support and Policy Decisions. In Les Oxley and Don Kulasiri (Eds.), Proc. International Congress on Modeling and Simulation 1: 67-72. 2007.

 

158.  Uprety, D. C., and Reddy, V. R. Rising Atmospheric Carbon dioxide and Crops. Monograph published by Indian Council of Agricultural Research, New Delhi, India, ISBN 978-81-7164-082-9, pp. 1 – 114. 2008.

 

159.  Timlin, D. J., Kouznetsov, M., Fleisher, D. H., Kim, S. H. and Reddy, V. R. Simulation of Nitrogen Demand and Uptake in Potato using a Carbon-Assimilation Approach. p. 219-243. In Liwang Ma, Lajpat R. Ahuja and Thomas W. Bruulsema (Eds.) Quantifying and Understanding Plant Nitrogen Uptake for Systems Modeling. CRC Press, Boca Raton, FL. 2008.

 

160.  Nemes, A., Timlin, D. J., Quebedeaux, B. and Reddy, V. R. Evaluation of the cropland modeling component of the U.S. national scale CEAP project: Estimation of soil hydraulic properties. Proceedings of the International Soil Conservation Organization 2008 Congress. 2008.

 

161.  Timlin D. J., Yang, Y., Kim, S. H., Bunce, J. A., Saseendran, A., Fleisher, D. H., Quebdeaux, B. and Reddy, V. R. Simulation of the effects of limited water on photosynthesis and transpiration in field crops: Can we advance our modeling approaches? ASA-CSSA-SSSA Book series on Advances in Agricultural Systems Modeling . 2008.

 

162.  Ahuja, L. R., Reddy, V. R., Saseendran, S. A. and Yu, Q. Response of Crops to Limited Water: Understanding and Modeling Water Stress Effects on Plant Growth Processes. Vol. 1. ASA-CSSA-SSSA Book series on Advances in Agricultural Systems Modeling (Book Editors, 452 pages). 2009.

 

163.  Timlin, D. J., Bunce, J. A., Fleisher, D. H., Reddy, V. R., Yang, Y., Kim, S. H., Saseendran, S. A. and Quebedeaux, B. Simulation of the Effects of Limited Water on Photosynthesis and Transpiration in Field Crops: Can we Advance Our Modeling Approaches? p. 105-144. In L. R. Ahuja, V. R. Reddy, S. A. Saseendran, and Q. Yu (Eds.) Response of Crops to Limited Water: Understanding and Modeling Water Stress Effects on Plant Growth Processes. Vol. 1. ASA-CSSA-SSSA Book series on Advances in Agricultural Systems Modeling. 2009.

 

164.  Ahuja, L. R., Saseendran, S. A., Reddy, V. R. and Yu, Q. Synthesis, Actions, and Further Research to Improve Response of Crop System Models to Water Stress. P. 411-421. In L. R. Ahuja, V. R. Reddy, S. A. Saseendran, and Q. Yu (Eds.) Response of Crops to Limited Water: Understanding and Modeling Water Stress Effects on Plant Growth Processes. Vol. 1. ASA-CSSA-SSSA Book series on Advances in Agricultural Systems Modeling. 2009.

 

165.  Fleisher, D. H., Timlin, D. J., Reddy, K. R., Reddy, V. R., Yang, Y., Kim, S. H. Effects of CO2 and Temperature on Crops: Lessons from SPAR Growth Chambers. Handbook of Climate Change and Agroecosystems, ICP Series on Climate Change Impacts, Adaptation, Mitigation, I: 55-86. 2010. 

 

166.  Reddy, V. R., Fleisher, D. H., Timlin, D. J., Anbumozhi, V., Reddy, K. R. and Yang Y. Monitoring the Vulnerability and Adaptation Planning for Food Security. In: Climate Change in Asia and Pacific: How Can Countries Adapt? Book Chapter, SAGE Publications India Pvt Ltd, New Delhi, India. 36-46. 2012.

 

167.          Anbumozhi, V., Breiling, M., Pathmarajah, S. and Reddy, V. R. Climate Change in Asia and Pacific: How Can Countries Adapt? Complete Book, SAGE Publications India Pvt Ltd, New Delhi, India. P. 363. 2012.


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