Beck, E.H., Fettig, S., Knake, C., Hartig, K. and Bhattarai, T. (2007) Specific and Unspecific Responses of Plants to Cold and Drought Stress. Journal of Biosciences, 32, 501-510.
 Godfray, H.C.J., Beddington, J.R., Crute, I.R., Haddad, L., Lawrence, D., Muir, J.F., Pretty, J., Robinson, S., Thomas, S.M. and Toulmin, C. (2010) Food Security: The Challenge of Feeding 9 Billion People. Science, 327, 812-818.
 Mangan, B.N., Tunio, S.D., Sial, M.A., Abro, S.A. and Rajper, S. (2008) Effect of Drought on Yield and Yield Components of Wheat. Pakistan Journal of Agriculture, Agricultural Engineering and Veterinary Sciences, 24, 14-19.
 Çetin, Ö. and Ögretir, K. (2000) The Effects of Rainfall Distribution and Temperature Changes under Different Irrigation and Nitrogen Levels on Winter Wheat. International Conference: Present and Future Requirements for Agrometeorological Information, Poznan, 11-15 September 2000, 55-68.
 García-Del Moral, L.F., Rharrabti, Y., Villegas, D. and Royo, C. (2003) Evaluation of Grain Yield and Its Components in Durum Wheat under Mediterranean Conditions. Agronomy Journal, 95, 266-274.
 Mohammadi, H. and Moradi, F. (2013) Effects of Plant Growth Regulators on Endogenous Hormones in Two Wheat Cultivars Differing in Kernel Size under Control and Water Stress Conditions. Agriculture & Forestry, 59, 81-94.
 Hongbo, S., Zongsuo, L., Mingan, S., Shimeng, S. and Zanmin, H. (2005) Investigation on Dynamic Changes of Photosynthetic Characteristics of 10 Wheat (Triticum aestivum L.) Genotypes during Two Vegetative Growth Stages at Water Deficits. Colloids and Surfaces B: Biointerfaces, 43, 221-227.
 Ma, J., Huang, G.B., Yang, D.L. and Chai, Q. (2014) Dry Matter Remobilization and Compensatory Effects in Various Internodes of Spring Wheat under Water Stress. Crop Sciences, 54, 331-339.
 Kirda, C., Topcu, S., Cetin, D., Dasgan, H.Y., Kaman, H., Topaloglu, F., Derici, M.R. and Ekici, B. (2007) Prospects of Partial Root Zone Irrigation for Increasing Irrigation Water Use Efficiency of Major Crops in the Mediterranean Region. Annals of Applied Biology, 150, 281-291.
 Sun, H.Y., Liu, C.M., Zhang, X.Y., Shen, Y.J. and Zhang, Y.Q. (2006) Effects of Irrigation on Water Balance, Yield and WUE of Winter Wheat in the North China Plain. Agricultural Water Management Journal, 8, 211-218.
 Liu, C.M., Zhang, X.Y. and Zhang, Y.Q. (2002) Determination of Daily Evaporation and Evapotranspiration of Winter Wheat and Maize by Large-Scale Weighting Lysimeter and Microlysimeter. Journal of Agricultural Meteorology, 111, 109-120.
 Bashir, M.U., Wajid, S.A., Ahmad, A. and Iqbal, M. (2016) Potential Soil Moisture Deficit: An Alternative Approach for Irrigation Scheduling in Wheat. International Journal of Agriculture and Biology, 18, 16-22.
 Hou, X., Li, R., Jia, Z., Han, O., Wang, W. and Yang, B. (2012) Effects of Rotational Tillage Practices on Soil Properties, Winter Wheat Yields and Water-Use Efficiency in Semi-Arid Areas of North-West China. Field Crops Research, 129, 7-13.
 Ahmadi, S.H., Agharezaee, M., Kamgar-Haghighi, A.A. and Sepaskhah, A.R. (2014) Effects of Dynamic and Static Deficit and Partial Root Zone Drying Irrigation Strategies on Yield, Tuber Sizes Distribution, and Water Productivity of Two Field Grown Potato Cultivars. Agricultural Water Management, 134, 126-136.
 Kang, Y.H., Wang, R.S., Wan, S.Q., Hu, W., Jiang, S.F. and Liu, S.P. (2012) Effects of Different Water Levels on Cotton Growth and Water Use through Drip Irrigation in an Arid Region with Saline Ground Water of Northwest China. Agricultural Water Management, 109, 117-126.
 Gevrek, M.N. and Atasoy, G.D. (2012) Effects of Post Anthesis Drought on Certain Agronomical Characteristics of Wheat under Two Different Nitrogen Application Conditions. Turkish Journal of Field Crops, 17, 19-23.
 Yang, J., Zahang, J., Huang, Z., Zhu, Q. and Wang, W. (2001) Remobilization of Carbon Reserves in Response to Water Deficit during Grain Filling of Rice. Field Crops Research, 71, 47-55.
 Basso, B. and Ritchie, J.T. (2005) Impact of Compost, Manure, and Inorganic Fertilizer on Nitrate Leaching and Yield for a 6-Year Maize-Alfalfa Rotation in Michigan. Agriculture, Ecosystems & Environment Journal, 108, 329-341.
 Ghani, A., Ahmad, A.N. and Sarwar (2000) Interactive Effect of Nitrogen and Water Stress on Nitrogen Content and Grain Yield of Two Wheat (Triticum aestivum L.) Varieties. Pakistan Journal of Agricultural Sciences, 37, 3-4.
 Semenov, M.A., Jamieson, P.D. and Martre, P. (2007) Deconvoluting Nitrogen Use Efficiency in Wheat: A Simulation Study. European Journal of Agronomy, 26, 283-294. https://doi.org/10.1016/j.eja.2006.10.009
 Fathi, G., Mcdonald, G. and Lance, R.C.M. (1997) Effects of Post-Anthesis Water Stress on the Yield and Grain Protein Concentration of Barley Grown at the Two Level of Nitrogen. Australian Journal of Agricultural Research, 48, 67-80.
 Tranaviciene, T., Siksnianiene, J., Urbonaviciute, A., Vaguseviciene, I., Samuoliene, G., Duckovskis, P. and Sliesaravicius, A. (2007) Effects of Nitrogen Fertilizers on Wheat Photosynthetic Pigment and Carbohydrate Contents. Biologia, 53, 80-84.
 Brown, B. (2000) Nitrogen Management for Hard Wheat Protein Enhancement. University of Idaho. Winter Commodity Schools Proceeding, 70-76.
 Shangguan, Z.P., Shao, M.A. and Dyckmans, J. (2000) Nitrogen Nutrition and Water Stress Effects on Leaf Photosynthetic Gas Exchange and Water Use Efficiency in Winter Wheat. Environmental and Experimental Botany, 44, 141-149.
 Ryan, J., Pala, M., Masri, S., Singh, M. and Harris, H. (2008) Rainfed Wheat-Based Rotations under Mediterranean Conditions: Crop Sequences, Nitrogen Fertilization, and Stubble Grazing in Relation to Grain and Straw Quality. European Journal of Agronomy, 28, 112-118.
 Dandan, L. and Shi, Y. (2013) Effects of Different Nitrogen Fertilizer on Quality and Yield in Winter Wheat. Advance Journal of Food Science and Technology, 5, 646-649.
 Asadi, G., Ghorbani, R., Khorramdel, S. and Azizi, G. (2013) Effects of Wheat Straw and Nitrogen Fertilizer on Yield and Yield Components of Garlic (Allium sativum L.). Journal of Agricultural Science and Sustainable Production, 4, 157-168.
 Makowski, D., Wallach, D. and Meynard, J.M. (1999) Model of Yield, Grain Protein and Residual Mineral Nitrogen Response to Applied Nitrogen for Winter Wheat. Agronomy Journal, 91, 337-385.
 Hamzei, J. and Soltani, J. (2012) Deficit Irrigation of Rapeseed for Water-Saving: Effects on Biomass Accumulation, Light Interception and Radiation Use Efficiency under Different N Rates. Agriculture, Ecosystems & Environment, 155, 153-160.
 Khaliq, T., Ahmad, A., Hussain, A., Ranjha, A.M. and Ali, M.A. (2008) Impact of Nitrogen Rates on Growth, Yield, and Radiation Use Efficiency of Maize under Varying Environments. Pakistan Journal of Agricultural Sciences, 45, 1-7.
 Ali, H., Randhawa, S.A. and Yousaf, M. (2003) Quantitative and Qualitative Traits of Wheat as Influenced by Planting Dates and Nitrogen Application. International Journal of Agriculture and Biology, 6, 410-412.
 Hussain, I., Khan, M.A. and Khan, E.A. (2006) Bread Wheat Varieties as Influenced by Different Nitrogen Levels. Journal of Zhejiang University Science B, 7, 70-78.
 Nisar, A.S., Soomro, A.F., Samo, H.A. and Depar, M.S. (2016) Growth and Yield Comparisons of Four Commercial Wheat Varieties to Irrigation Frequencies. Pakistan Journal of Agricultural Research, 29, 212-217.
 Khaliq, A., Iqbal, M. and Basra, S.M.A. (1999) Optimization of Seeding Density and Nitrogen Application in Wheat cv. Inqlab-91 under Faisalabad Conditions. International Journal of Agriculture and Biology, 1, 241-243.
 Maqsood, M., Ali, A., Aslam, Z., Saeed, M. and Ahmad, S. (2002) Effect of Irrigation and Nitrogen Levels on Grain Yield and Quality of Wheat. International Journal of Agriculture and Biology, 4, 164-165.
 Zhang, B., Li, F. and Cheng, Z. (2004) Temporal and Spatial Dynamics of Soil Moisture in Intercropped Maize under Deficit Irrigation with Rainfall Harvesting. Journal of Irrigation and Drainage Engineering, 23, 49-51.
 Lin, L., Xu, B.C. and Li, F.M. (2007) Effects of Limited Irrigation on Yield and Water Use Efficiency of Two Sequence-Replaced Winter Wheat in Loess Plateau, China. African Journal of Biotechnology, 6, 1493-1497.
 Shao, L., Zhang, X., Chen, S., Sun, H. and Wang, Z. (2009) Effects of Irrigation Frequency under Limited Irrigation on Root Water Uptake, Yield and Water Use Efficiency of Winter Wheat. Journal of Irrigation and Drainage Engineering, 58, 393-405.
 Ali, M.A., Aslam, M., Hammad, H.M., Abbas, G., Akram, M. and Ali, Z. (2009) Effect of Nitrogen Application Timings on Wheat Yield under Thal Environment. Journal of Agricultural Research, 47, 31-35.
 Zhang, X., Han, H., Ning, L.T., Shan, Y. and Bai, M. (2008) Radiation Use Efficiency and Yield of Winter Wheat under Deficit Irrigation in North China. Journal of Plant Soil and Environment, 54, 313-319.
 Bunyolo, K.M. (2000) The Effect of Water and Nitrogen on Wheat Yield on a Zambian Soil II. Evaluation of Irrigation Schedules. Communications in Soil Science and Plant Analysis, 16, 43-53.
 Mubeen, M., Ahmad, A., Khaliq, T., Sultana, S., Hussain, S., Ali, A., Ali, H. and Nasim, W. (2013) Effect of Growth Stage Based Irrigation Schedules on Biomass Accumulation and Resource Use Efficiency of Wheat Cultivars. American Journal of Plant Sciences, 4, 1435-1442.
 Zarien, A., Abad, H.H.S. and Hamidi, A. (2014) Yield, Yield Components and Some Physiological Traits of Three Wheat Cultivars under Drought Stress and Potassium Foliar Application Treatments. International Journal of Biological Sciences, 4, 168-175.
 Agarwal, P.K. and Sinha, S.K. (1984) Effect of Water Stress on Grain Growth and Assimilate Partitioning in Two Cultivars of Wheat Contrasting in Their Yield Ability in a Drought Environment. Annals of Botany, 53, 329-340.
 Whitfield, D.M. and Smith, C.J. (1989) Effects of Irrigation and Nitrogen on Growth, Light Interception and Efficiency of Light Conversion in Wheat. Field Crops Research, 20, 279-295.