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Department of Agronomy

Dr. P.V. Vara Prasad

Dr. P.V. Vara Prasad

Professor | Director

Crop Ecophysiology | Sustainable Intensification Innovation Lab
Email Dr. Prasad

Kansas State University
108 Waters Hall
1712 Claflin Road
Manhattan, KS 66506

Ph: +1-785-532-3746
Fx: +1-785-532-6094

Biography & Education


Dr. Vara Prasad obtained his BS and MS degrees from Andhra Pradesh Agricultural University in India, and Ph.D. from University of Reading in United Kingdom. He is currently a Professor of Crop Ecophysiology and Director of Center for Sorghum Improvement in the Department of Agronomy at Kansas State University. His research mainly focuses on understanding responses of food grains crop to changing environments (temperature, water and climate change factors) and developing crop management strategies for efficient use of inputs.

He is passionate about international research and education. He has several on-going international research programs in Africa (Ghana, Mali, Burkina Faso, Niger and Kenya) and Asia (India, Philippines) focusing on soil, water, nutrient and crop management practices, and stress tolerance for improving crop productivity. Dr. Prasad has published more than 100 peer reviewed journal articles and book chapters, and served as a peer reviewer for more 35 different international journals. He currently serves on editorial boards of international journals including Crop Science, Agronomy Journal and Journal of Crop Improvement.

He teaches two graduate level courses: Crop Physiology; and Advanced Crop Ecology. He has graduated 6 doctoral and 5 master students, and trained more than 30 international scholars. He is an active member of American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, American Association of Advancement of Science and International Society for Agricultural Meteorology.

  • Ph.D., University of Reading, United Kingdom, 1999
  • M.S., Andhra Pradesh Agricultural University, India, 1993
  • B.S., Andhra Pradesh Agricultural University, India, 1991


Dr. Prasad does not have a formal extension appointment. However, most of research in West Africa (Ghana, Mali, Burkina Faso and Niger) is associated with participatory research done in the farmers field and deals with technology transfer. These technologies mainly include cropping systems (rotations and intercropping), integrated fertilizer management, efficient water management and evaluation of genotypes for yield improvement and abiotic stress tolerance.


Published Journal Articles
  • Paul G, Gowda PH, Prasad PVV, Howell TA, Aiken RM. 2014. Investigating the influence of roughness length for heat transport (zoh) on performance of SEBAL in semi-arid irrigated and dryland agricultural systems. Journal of Hydrology 209: 231-234.
  • Djanaguiraman M, Prasad PVV, Murugan M, Reddy UK. 2014. Physiological differences among sorghum (Sorghum bicolor L. Moench) genotypes under high temperature stress. Environmental and Experimental Botany 100: 43-54.
  • Singh P, Swamikannu N, Traore SP, Boote KJ, Tattunde HFW, Prasad PVV, Singh NP, Srinivas K, Bantilan C. 2014. Quantifying potential benefits of drought and heat tolerance in rainy season sorghum for adapting to climate change. Agricultural and Forest Meteorology185: 231-234.
  • Ocheltree TR, Nipper JB, Prasad PVV. 2014. Stomatal response to changes in vapor pressure deficit reflect tissue-specific differences in hydraulic conductance. Plant Cell and Environment 37: 132-139.
  • Ocheltree TR, Nippert JB, Kirkham MB, Prasad PVV. 2014. Partitioning hydraulic resistance in sorghum bicolor leaves reveals unique correlations with stomatal conductance during drought. Functional Plant Biology 41: 25-36.
  • Narayanan S, Aiken RM, Prasad PVV, Xin Z, Paul G, Yu J. 2014. A simple quantitative model to predict leaf area index in sorghum. Agronomy Journal 106: 219-226.
  • Kapanigowda M, Perumal R, Djanaguiraman M, Aiken RM, Tesso T, Prasad PVV, Little CR. 2013. Genotypic variation in sorghum (Sorghum bicolor L. Moench) exotic germplasm collections for drought and disease tolerance. SpringerPlus 2: 650.
  • Paul G, Gowda PH, Prasad PVV, Howell TA, Staggenborg SA, Neale CMU. 2013. Lysimetric evaluation of SEBAL using high resolution airborne imagery from BEAREX08. Advances in Water Resources 59: 157-168.
  • Rao SS, Patil JV, Prasad PVV, Reddy DCS, Mishra JC, Umakanth AV, Reddy BVS, Kumar AA. 2013. Sweet sorghum planting effects on stalk yield and sugar quality in semi-arid tropical environment. Agronomy Journal 105: 1458-1465.
  • Choudhary S, Mutava RN, Shekoofa A, Sinclair TR and Prasad PVV. 2013. Is the stay-green trait in sorghum a result of transpiration sensitivity to either soil drying or vapor pressure deficit?. Crop Science 53: 2129-2134.
  • Choudhary S, Sinclair TR, Prasad PVV. 2013. Hydraulic conductance of intact plants of two contrasting sorghum lines SC15 and SC1205. Functional Plant Biology 40: 730-738.
  • Djanaguiraman M, Prasad PVV, Schapaugh WT. 2013 High day and night temperature alters leaf assimilation, reproductive success and phosphatidic acid of pollen grain in soybean (Glycine max L. Merr.). Crop Science 53: 1594-1604.
  • Djanaguiraman M, Prasad PVV, Boyle DL, Schapaugh WT. 2013. Soybean pollen anatomy, viability and pod set under high temperature stress. Journal of Agronomy Crop Science 199: 171-177.
  • McMaster GS, Ascough II JC, Edmunds DA, Neilsen DC, Prasad PVV. 2013. Simulating crop phenological responses to water stress using the phenologyMMS software program. Applied Engineering in Agriculture 29: 233-249.
  • Narayanan S, Aiken RA, Xin Z, Prasad PVV, Yu J. 2013. Water use efficiencies in sorghum. Agronomy Journal 105: 649-656.
  • Singh RP, Reddy KR, Prasad PVV. 2013. Impact of changing climate and climate variability on seed production and seed industry. Advances in Agronomy 118: 49-110.
  • Craufurd PQ, Vadez V, Jagadish SVK, Prasad PVV, Zaman-Allah M. 2013. Crop science experiments designed to inform crop modeling. Agricultural and Forest Meteorology170: 8-18.
  • Gholipoor M, Sinclair TR, Prasad PVV. 2012. Genotypic variation within sorghum for transpiration response to drying soil. Plant Soil 357: 35-40.
  • Kumar S, Sehgal SK, Kumar U, Prasad PVV, Joshi AK, Gill BS. 2012. Genomic characterization of drought tolerant related traits in spring wheat. Euphytica186: 265-276.
  • Ocheltree TW, Nippert JB, Prasad PVV. 2012. Changes in stomatal conductance along grass blades reflect changes in leaf structure. Plant Cell and Environment 35: 1040-1049.
  • Pradhan GP, Prasad PVV, Fritz AK, Kirkham MB, Gill BS. 2012. Effect of drought and high temperature stress on synthetic hexaploid wheat. Functional Plant Biology 39: 190-198.
  • Pradhan GP, Prasad PVV, Fritz AK, Kirkham MB, Gill BS. 2012. High temperature tolerance in Aegilops species and its potential transfer to wheat. Crop Science 52: 292-304.
  • Pradhan GP, Prasad PVV, Fritz AK, Kirkham MB, Gill BS. 2012. Response of Aegilops species to drought stress during reproductive stages of development. Functional Plant Biology 39: 51-59.
  • Fu J, Momcilovic I, Prasad PVV. 2012. Roles of protein synthesis elongation factor EF-Tu in heat tolerance in plants. Journal of Botany: Article ID 835836.
  • Prasad PVV, Vu JCV, Boote KJ, Allen LH Jr. 2011. Longevity and temperature response of pollen as affected by elevated growth temperature and carbon dioxide in peanut and grain sorghum. Experimental and Environmental Botany 70: 51-57.
  • Prasad PVV, Pisipati SR, Momcilovic I, Ristic Z. 2011. Independent and combined effects of high temperature and drought stress during grain filling on plant yield and chloroplast EF-Tu expression in spring wheat. Journal of Agronomy and Crop Science 197: 430-441.
  • Prasad PVV, Djanaguiraman M. 2011. High night temperature decreases leaf photosynthesis and pollen function in grain sorghum. Functional Plant Biology 38: 993-1003.
  • Djanaguiraman M, Prasad PVV, Boyle DL, Schapaugh WT. 2011. High-temperature stress and soybean leaves: leaf anatomy and photosynthesis. Crop Science 51: 2125-2131.
  • Djanaguiraman M, Prasad PVV, Al-Khatib K. 2011. Ethylene perception inhibitor 1-MCP decreases oxidative damage of leaves through enhanced antioxidant defense mechanisms in soybean plants grown under high temperature stress. Experimental and Environmental Botany 70: 51-57.
  • Ananda N, Vadlani PV, Prasad PVV. 2011. Evaluation of drought and heat stressed grain sorghum (Sorghum bicolor) for biofuel production. Industrial Crops and Products 33: 779-782
  • McMaster G, Edmunds DA, Wilhelm WW, Nielsen DC, Prasad PVV, Aschogh JC. 2011. PhenologyMMS: A program to simulate crop phenological responses to water stress. Computers and Electronics in Agriculture 77: 118-125.
  • Mutava RN, Prasad PVV, Tuinstra MR, Kofoid KD and Yu J. 2011. Characterization of sorghum genotypes for traits related to drought tolerance. Field Crops Research 123: 10-18
  • Prasad PVV, Vu JCV, Boote KJ, Allen LH Jr. 2011. Longevity and temperature response of pollen as affected by elevated growth temperature and carbon dioxide in peanut and grain sorghum. Experimental and Environmental Botany 70: 51-57.
  • Djanaguiraman M, Prasad PVV. 2010. Ethylene production under high temperature stress causes premature leaf senescence in soybean. Functional Plant Biology 37: 1071-1084.
  • Gholipoor M, Prasad PVV, Mutava RN, Sinclair TR. 2010. Genetic variability of transpiration response to vapor pressure deficit among sorghum genotypes. Field Crops Research 119: 85-90.
  • Djanaguiraman M, Prasad PVV, Seppanen M. 2010. Selenium protects sorghum leaves from oxidative damage under high temperature stress by enhancing antioxidant defense system. Plant Physiology and Biochemistry 48: 999-1007.
  • Djanaguiraman M, Sheeba JA, Devi DD, Bangarusamy U, Prasad PVV. 2010. Nitrophenolates spray can alter boll abscission rate in cotton through enhanced peroxidise activity and increased ascorbate and phenolics levels. Journal of Plant Physiology 37: 1-9.
  • Assefa Y, Staggenborg SA. Prasad PVV. 2010. Grain sorghum water requirement and response to drought. Crop Management. doi: 10.1094/CM-2010-1109-01-RV
  • Naab JB, Prasad PVV, Boote KJ, Jones JW. 2009. Response on peanut to fungicides and phosphorus in on-station and farmers participatory on-farm tests in Ghana. Peanut Science 36: 157-164.
  • Naab JB, Seini SS, Gyasi G, Mahama Y, Prasad PVV, Boote KJ, Jones JW. 2009. Groundnut yield response and economic benefits of fungicide and phosphorus application in farmer managed trials in northern Ghana. Experimental Agriculture 45: 385-399.
  • Ristic Z, Momcilovic U, Bukovnik U, Prasad PVV, Fu J, DeRidder BP, Elthon TE, Mladenov N. 2009. Rubisco activase and wheat productivity under heat stress conditions. Journal of Experiment Botany 60: 4003-4014.
  • Prasad PVV, Vu JCV, Boote KJ, Allen LH Jr. 2009. Enhancement in leaf photosynthesis and upregulation of Rubisco in the C4 sorghum plant at elevated growth carbon dioxide and temperature occur at early stages of leaf ontogeny. Functional Plant Biology 36: 761-769.
  • Naab JB, Boote KJ, Prasad PVV, Jones JW. 2009. Influence of fungicide and sowing density on growth and yield of two groundnut cultivars. Journal of Agricultural Science 147: 179-191.
  • Thomas JMG, Prasad PVV, Boote KJ, Allen LH Jr. 2009. Seed composition, seedling emergence and early seedling vigor of red kidney bean seed produced at elevated temperature and carbon dioxide. Journal of Agronomy and Crop Science 195: 148-156.
  • Bukovnik U, Fu JM, Bennett M, Prasad PVV, Ristic Z. 2009. Heat tolerance and expression of protein synthesis elongation factors, EF-Tu and EF-1 alpha, in spring wheat. Functional Plant Biology 36: 234-241.
  • Prasad PVV, Pisipati SR, Ristic Z, Bukovnik U, Fritz A. 2008. Impact of high nighttime temperature on growth and yield of spring wheat. Crop Science 48: 2372-2380.
  • Prasad PVV, Pisipati SR, Mutava RN, Tuinstra MR. 2008. Sensitivity of grain sorghum to high temperature stress during reproductive development. Crop Science 48: 1911-1917.
  • Ristic Z, Bukovnik U, Prasad PVV, West M. 2008. A model to predict heat stability of photosynthetic membranes. Crop Science 48: 1513-1522.
  • Ristic Z, Bukovnik U, Momcilovic I, Fu J, Prasad PVV. 2008. Heat induced accumulation of chloroplast protein elongation factor, EF-Tu in winter wheat. Journal of Plant Physiology 165:192-202.
  • Ristic Z, Bukovnik U, Prasad PVV. 2007. Correlation between heat stability of thylakoid membrane and loss of chlorophyll in winter wheat under heat stress. Crop Science 47: 2067-2073.
  • Singh RP, Prasad PVV, Sunita K, Giri SN, Reddy KR. 2007. Influence of high temperature and breeding for heat tolerance in cotton: a review. Advances in Agronomy 93: 313-385.
  • Britz SJ, Prasad PVV, Moreau RA, Allen LH Jr, Kremer DK, Boote KJ. 2007. Influence of growth temperature on the amounts of tocopherols, tocotrienols, and -oryzanol in brown rice. Journal of Agriculture and Food Chemistry 55: 7559-7565.
  • Jain M, Prasad PVV, Boote KJ, Allen LH Jr., Chourey P. 2007. Effects of season-long high temperature growth conditions on sugar-to-starch metabolism in developing microspores of grain sorghum (Sorghum bicolor L. Moench). Planta 227: 67-79.
  • Prasad PVV, Boote KJ, Allen LH, Thomas JMG. 2006. Adverse high temperature effects on pollen viability, seed-set, seed yield and harvest index of grain sorghum (Sorghum bicolor L.) are more severe at elevated carbon dioxide due to high tissue temperatures. Agricultural Forest Meteorology 139: 237-251
  • Prasad PVV, Boote KJ, Allen LH, Jr., Thomas JMG. 2006. Influence of soil temperature on seedling emergence and early growth of peanut cultivars. Journal of Agronomy and Crop Science 192: 167-177.
  • Craufurd PQ, Prasad PVV, Waliyar F. 2006. Drought, Pod yield, Pre-harvest Aspergillus infection and Aflatoxin contamination on peanut in Niger. Field Crops Research 98: 20-29.
  • Prasad PVV, Boote KJ, Allen LH, Jr., Sheehy JE, Thomas JMG. 2006. Species, ecotype and cultivar differences in spikelet fertility and harvest index of rice in response to high temperature stress. Field Crops Research 95: 398-411.
  • Adamou M, Prasad PVV, Boote KJ, Detongnon J. 2005. Disease assessment methods and their use in simulating growth and yield of peanut crops affected by foliar disease in Benin. Annals of Applied Biology 146: 469-479.
  • Kakani VG, Reddy KR, Koti S, Wallace TP, Prasad PVV, Reddy VR, Zhao D. 2005. Differences in in-vitro pollen germination and pollen tube growth of cotton cultivars in response to high temperature. Annals of Botany 96: 59-67.
  • Boote KJ, Allen LH Jr, Prasad PVV, Baker JT, Gesch RW, Snyder AM, Pan D, Thomas JMG. 2005. Elevated temperature and CO2 impacts on pollination, reproductive growth and yield of several globally important crops. Journal of Agricultural Meteorology 60: 469-474.
  • Naab JB, Tsigbey FK, Prasad PVV, Boote KJ, Bailey JE, Brandenburg RL. 2005. Effects of sowing date and fungicide application on yield of early and late maturing peanut cultivars grown under rainfed conditions in Ghana. Crop Protection 24: 325-332.
  • Murthy VRK, Mohammed S, Prasad PVV, Satyanarayana V. 2005. Resource capture mechanisms – an aid to promote growth and yield of winter rice. Journal of Agrometerology 7: 417-421.
  • Prasad PVV, Boote KJ, Vu JCV, Allen LH. 2004. The carbohydrate metabolism enzymes sucrose-P synthase and ADG-pyrophosphorylase in phaseolus bean leaves are up-regulated at elevated growth carbon dioxide and temperature. Plant Sciences 166: 1565-1573.
  • Prasad PVV, Boote KJ, Allen LH JR., Thomas JMG 2003. Super-optimal temperatures are detrimental to reproductive processes and yield of peanut under both ambient and elevated carbon dioxide. Global Change Biology 9: 1775-1787.
  • Craufurd PQ, Prasad PVV, Kakani VG, Wheeler TR, Nigam SN. 2003. Heat tolerance in peanuts. Field Crops Research 80: 63-77.
  • Prasad PVV, Boote KJ, Allen LH Jr., Thomas JMG 2002. Effects of elevated temperature and carbon dioxide on seed-set and yield of kidney bean (Phaseolus vulgaris L.). Global Change Biology 8: 710-721.
  • Kakani VG, Prasad PVV, Craufurd PQ, Wheeler TR. 2002. Response of in vitro pollen germination and pollen tube growth of groundnut (Arachis hypogaea L.) genotypes to temperature. Plant Cell Environment 25: 1651-1661.
  • Prasad PVV, Satyanarayana V, Murthy VRK, Boote KJ. 2002. Maximizing yields in rice-groundnut cropping system in India through integrated nutrient management. Field Crops Research 75: 9-21.
  • Satyanarayana V, Prasad PVV, Murthy VRK, Boote KJ. 2002. Effect of integrated application of organic and inorganic fertilizer on yield of lowland rice. Journal of Plant Nutrition 25: 2081-2090.
  • Craufurd PQ, Prasad PVV, Summerfield RJ. 2002. Effect of temperature on the rate of change of harvest index in peanut. Crop Science 42: 146-151.
  • Prasad PVV, Craufurd PQ, Summerfield RJ. 2001. Response of groundnuts dependent on symbiotic and inorganic nitrogen to high air and soil temperatures. Journal of Plant Nutrition 24 (4-5): 623-637.
  • Prasad PVV, Craufurd PQ, Kakani, VG, Wheeler TR, Boote KJ. 2001. Influence of high temperature during pre- and post-anthesis stages of floral development on fruit-set and pollen germination in peanut. Australian Journal of Plant Physiology 28: 233-240.
  • Craufurd PQ, Summerfield RJ, Asiedu R, Prasad PVV. 2001. Dormancy in yams. Experimental Agriculture 37: 147-181.
  • Prasad PVV, Satyanarayana V, Potdar MV, Craufurd PQ. 2000. On-farm diagnosis and management of iron chlorosis in groundnut. Journal of Plant Nutrition 23: 1471-1783.
  • Prasad PVV, Craufurd PQ, Summerfield RJ. 2000. Effect of high air and soil temperature on dry matter production, pod yield and yield components of groundnut. Plant and Soil 222:231-239.
  • Prasad PVV, Craufurd PQ, Summerfield RJ, Wheeler TR. 2000. Effects of short episodes of heat stress on flower production and fruit-set of groundnut (Arachis hypogaea L.). Journal of Experimental Botany 51:777-784.
  • Craufurd PQ, Wheeler TR, Ellis RH, Summerfield RJ, Prasad PVV. 2000. Escape and tolerance to high temperature at flowering in groundnut (Arachis hypogaea L.). Journal of Agricultural Sciences 135: 371-378.
  • Wheeler TR, Craufurd PQ, Ellis RH, Porter JR, Prasad PVV. 2000. Temperature variability and the yield of annual crops. Agriculture Ecosystems and Environment 82: 159-167.
  • Prasad PVV, Craufurd PQ, Summerfield RJ. 1999. Sensitivity of peanut to timing of heat stress during reproductive development. Crop Science 39:1352-1357.
  • Prasad PVV, Craufurd PQ, Summerfield RJ. 1999. Fruit number in relation to pollen production and viability in groundnut exposed to short episodes of heat stress. Annals of Botany 84: 381-386.
  • Satyanarayana V, Latchanna A, Prasad PVV. 1997. Weed management in direct seeded upland paddy. Annals of Agricultural Research 18: 385-387
  • Ravinder N, Satyanarayana V, Rao VP, Prasad PVV. 1996. Influence of irrigation and fertilisation on seed yield, nutrient uptake and fertiliser use efficiency of summer sesame (Sesamum indicum L.). Journal of Oilseed Research 13: 173-177
  • Satyanarayana V, Ravinder N, Rao VP, Prasad PVV. 1996. Influence of irrigation, nitrogen and phosphorus on yields and its components in sesame (Sesamum indicum L.). Annals of Agricultural Research 17: 286-291
  • Padmavathi P, Satyanarayana V, Rao PC, Prasad PVV. 1995. Integrated weed management systems in soybean (Glycine max L.). Journal of Oilseed Research 12: 282-285.
  • Basith MA, Satyanarayana V, Latchanna A, Prasad PVV. 1995. Response of groundnut genotypes to levels of potassium and plant stands in rainy season. Journal of Potassium Research 11: 385-388.
Published Refereed Book Chapters
  • Redden RJ, Hatfield JL, Prasad PVV, Ebert AW, Yadav SS, O’Leary GJ. 2014. Temperature, climate change and global food security. In Temperature and Plant Development (Eds. K. Franklin, P.A. Wigge). John Wiley and Sons Inc. pp. 181-202.
  • Djanaguiraman M, Prasad PVV. 2013. High temperature stress. In: Plant Genetic Resources and Climate Change (Eds. M. Jackson, B.V. Ford-Lloyd, M.L. Perry). CABI. pp. 201-220.
  • Paul GP, Gowda PH, Prasad PVV, Howell TA, Aiken RM, Hutchinson SL. 2013. Role of hot and cold pixel concept in remote sensing based single source surface energy balance algorithms. In: Proceedings of Seventh International Conference on Irrigation and Drainage - Using 21st Century Technology to Better
  • Manage Irrigation Water Supplies (Eds. B.T. Wahlin and S.S. Anderson). U.S Committee on Irrigation and Drainage. pp. 103-117.
  • Djanaguiraman M, Prasad PVV. 2012. Effects of salinity on ion transport, water relations and oxidative damage. In: Ecophysiology and Responses of Plant under Salt Stress (Eds. P. Ahmad, M.N.V. Prasad). Springer Science, USA. pp. 89-114.
  • Prasad PVV, Kannan K, Djanaguiraman M. 2012. Impact of climate change factors on growth and productivity of crop plants. In: Water Management for Sustainable Agriculture: Indo – US Experience (Eds. D.V. Singh, V.N. Sharda, V. Selvi, J. Bartholic and K. Maredia). Central Soil and Water Conservation Researchand Training Institute, India; and Michigan State Univesrity. pp. 53-70.
  • Fu J, Momcilovic I, Prasad PVV. 2011. Molecular Basis and Improvement of Heat tolerance in Crop Plants. In: Heat Stress: Causes, Treatment and Prevention (Eds. S. Joipovic and E.Ludwig). Nova Publishers, NY, USA. pp. 185-213.
  • Paul G, Gowda PH, Prasad PVV, Howell T, Staggenborg SA. 2011. Evaluating surface energy balance systems (SEBS) using aircraft data collected during BEAREX07. In: Proceedings of World Environmental and Water Resources Congress 2011 (Eds R.E. Beighley and M.W. Killgore). pp. 2777-2786.
  • Singh, RP, Prasad PVV, Sharma AK, Reddy KR. 2011. Impact of High Temperature Stress and Potential Opportunities for Breeding. In: Crop Adaptation to Climate Change (Eds. S.S. Yadav, R.J. Redden, J.L. Hatfield, H.L. Campen and A.E. Hall). Wiley-Blackwell, Oxford, UK. pp. 166-185.
  • Prasad PVV. 2010. High-temperature tolerance in sorghum - What do we know and what are the possibilities. In: Proceedings of First Australian Summer Grains Conference, Gold Coast, Australia 24-24 June 2010. Edited Paper (9 pages).
  • Boote KJ, Allen LH Jr., Prasad PVV, Jones JW. 2010. Testing effects of climate change in crop models. In: Handbook of Climate Change and Agroecosystems (Eds. D. Hillel and C. Rosenzweig). Imperial College Press, London. pp. 109-129.
  • Prasad PVV, Kakani VG, Upadhyaya HD. 2010. Growth and Production of Peanut. In: Encyclopedia of Life Support Systems. EOLSS Publishers, Oxford, U.K.
  • Prasad PVV, Staggenborg SA. 2010. Growth and Production of Sorghum and Millets. In: Encyclopedia of Life Support Systems. EOLSS Publishers, Oxford, U.K.
  • Reddy KR, Prasad PVV, Singh SK. 2010. Effects of ultraviolet-B radiation and its interaction with climate change factors on agricultural crop growth and yield. In: UV Radiation and Global Change: Measurement, Modelling and Effects on Ecosystems (Ed. W. Gao). Springer – Verlag, USA. pp. 395 – 437.
  • Prasad PVV, Staggenborg SA, Ristic Z. 2009. Impact of drought and heat stress on physiological, growth and yield processes. In: Modeling Water Stress Effects on Plant Growth Processes (Eds. L.H. Ahuja and S.A. Saseendran). ASA – CSSA, Madison, WI. Advances in Agricultural Systems Modeling 1: 301-355.
  • Prasad PVV, Allen LH, Boote KJ. 2005. Crop responses to elevated carbon dioxide and interaction with temperature: Grain legumes. In: Ecological Responses and Adaptations of Crops to Rising Carbon Dioxide (Ed. Z. Tuba). pp. 113-155. Haworth Press, USA.
  • Reddy KR, Prasad PVV, Kakani VG. 2005. Crop responses to elevated carbon dioxide and interaction with temperature: Cotton. In: Ecological Responses and Adaptations of Crops to Rising Carbon Dioxide (Ed. Z. Tuba). pp. 157-191. Haworth Press, USA.
  • Allen LH, Prasad PVV. 2004 Crop Responses to Elevated Carbon dioxide. In: Encyclopedia of Plant and Crop Science (Ed. R.M. Goodman). pp. 346-348. Marcel Dekker, New York, USA.
  • Prasad PVV. 2003. Plant Nutrition: Iron Chlorosis. In: Encyclopedia of Applied Plant Sciences (eds. B. Thomas, D.J. Murphy and B.G. Murray). pp. 649-656. Elsevier, London, UK.
  • Prasad PVV, Kakani VG, Reddy KR. 2003. Plants and Environment: Ozone Depletion. In: Encyclopedia of Applied Plant Sciences (Eds. B. Thomas, D. J. Murphy and B. G. Murray). pp. 749-756. Elsevier, London, UK.
  • Thomas JMG, Prasad PVV. 2003. Plants and Environment: Global Warming. In: Encyclopedia of Applied Plant Sciences (Eds. B. Thomas, and B.G. Murray). pp. 786-794. Elsevier, London, UK.


Crop Response & Adaptation to Environmental Conditions
Crop production is highly sensitive to environmental changes and variation. Kansas has wide gradient of environments, particularly with rainfall and temperatures. Annual rainfall varies from 16 inches on western border to over 40 inches in Southeast, and as we move from north to south, temperature increases. Crops in Kansas are often exposed to water stress, heat and cold stress during crop growing season leading to decreased biomass, grain yield and quality. Thus, crop production is always challenging to farmers and researchers.

The goal of my research program is to seek ways to help farmers understand and overcome the risks associated with environmental stresses.


The main focus of my program is to conduct research that improves our understanding of how crop plants respond and adapt to changing environmental conditions.

These conditions include:

  • Abiotic factors such as water (drought)
  • Alterations in crop management strategies associated with genetic improvements
  • Biotic pest infestations
  • Changes in cultural practices
  • Nutrient stress
  • Temperature (hot and cold temperatures)
  1. Understand crop responses to abiotic (drought, temperature, nutrient and climate change factors) and biotic (disease, pests and weeds) stress.
  2. Conduct research to develop best management practices for efficient use of resources, maximising crop yield and minimizing environmental risk.
  3. Use and improve crop growth models to identify yield gaps, evaluate crop management practices, and impact of environmental, nutrient and biotic stress on crop production.

Staff & Students


  • AGRON 840 - Crop Physiology
    To provide knowledge base and improve understanding of various plant or crop physiological processes at cellular, whole-plant and crop canopy levels and their interaction with environment. Crop physiology is the study of various fundamental plant physiological processes that finally integrate to produce crop biomass and yield.
  • AGRON 950 - Advanced Crop Ecology
    This is a discussion based course with a focus of impact of various stresses (mainly temperature, water, nutrition, carbon dioxide, ozone, ultra-violet radiation and selected biotic pests) interact with each other and influence crop growth, development and yield processes. The various management practices for efficient use of inputs (water and nutrient) will be reviewed and discussed.