Ahmed, S., Gilani, M., 2002. Drought resistance: A potential wayto increase dry land crop production in highland Balochistan. Asian Journal ofPlant Science. 5, 264-263.
Bertsch, P.M., Thomas, W., 1985. Potassium status of temperate region soils. In: Potassium in Agriculture. ASA-CSSA-Modison, Wiscansin., USA.
Bruck, H., Payne, W.A., Sattelmacher, B., 2000. Effects of phosphorus and water supply on yield, transpiration, water–use efficiency and carbon isotope discrimination of pearl millet. Crop Science. 40, 120-125.
Chaves, M.M., Flexas, J., Pinhiero, C., 2009. Photosynthesis under drought and salt stress:regulation from whole plant to cell. Annals of Botany. 103, 51–60.
Demidchik, V., Cuin, T.A., Svistunenko, D., Smith, S.J., Miller, A.J., Shabala, S., Sokolik,A., Yurin, V., 2010. Arabidopsis root K+-efflux conductance activated by hydroxylradicals: single-channel properties, genetic basis and involvement in stressinducedcell death. Journal of Cell Science. 123, 1468–1479.
Ehdaie, B., Barnhart, D., Waines, J.G.,2005. Genetic analysis of transpiration efficiency carbon isotope discrimination and growth characters in bread wheat. In: Stableisotopesand Plant Carbon-Water Relations. Academic Press., Massachusetts.
El-Sayed, A.A., 2002. Improvement of food hull - less barley in Egypt. Paper presented inthe food earley workshop organization by ICARDA and FAO, 14-17 January 2002. Rom, Italy.
Emam, y., 2007. Cereal Crops. Third edition. Shiraz University Press. 580p. [In Persian].
FAO (Food and Agriculture Organization of the United Nations). 2013. http://faostat.fao.org /site/567/DesktopDefault.aspx?PageID=567#ancor. Accessed 22 November 2013. New York, USA.
Fathi, G., Mc-Donald, G. K., 1997. Comparison of six barley cultivars under drought stress during grain filling nitrogen transfer in the greenhouse, Agriculture Journal. 20, 61-73. [In Persian with English Summary].
Guo, P., Baum, M., Grando, S., Ceccarelli, S., Bai, G., Li, R., 2009. Differentially expressedgenes between drought-tolerant and drought-sensitive barley genotypes inresponse to drought stress during the reproductive stage. Journal Experiment Botany. 60,31–44.
Hameed, A., Goher, M., Iqbal, N., 2013. Drought induced programmed cell death and associated changes in antioxidants, proteases, and lipid peroxidation in wheat leaves. Biologia Plantarum. 57, 370–374.
Heidari, M., 2007. Response of Plants to Environmental Stresses. First edition. Aras rayane Publishing. 420p. [In Persian].
Janská, A., Hodek, J., Svoboda, P., Záme9cník, J., Prášil, I.T., Vlasáková, E., Milella, L.,Ovesná, J., 2013. The choice of reference gene set for assessing gene expressionin barley (Hordeum vulgare L.) under low temperature and drought stress. Molecular Genetics and Genomics. 288, 639–649.
Jahan Byn, Sh., Tahmasebi Savenstani, Z., Modars Sanvy, A., Karimzadeh, G., 2001. Effect of drought stress on yield and yield components and naked barley genotypes resistance indices. Journal of Agricultural Sciences and natural resources. 4, 34-25. [In Persian with English Summary].
Khazaee, H.F., Kafi, M., 2001. Effects of water stress on root and shoot growth and dry matter distribution in resistant and susceptible wheat varieties. Journal of agricultural research.1, 43-33. [In Persian with English Summary].
Kinet, J.M., Peet, M.M., 1997. Tomato. In: physiology of vegetable crops. CAB International., New York. pp. 207-258.
Koocheki, A., Hosseini, V., Nassiri-mahaliti, M., 2002. Water relations of plants and soils. Mashhad Jahad Daneshgahi Press. 370p.[In Persian].
Koocheki, A., Rashid mohasel, H., Nassiri, M., Sadr Abadi, R., 1992. Principles of physiology, growth and development of crops. Razavi Publications. 404 p. [In Persian].
Malakoti, M. j., Keshvarzm, P., Karimiyan, V. N., 2008. A comprehensive approach to identify and recommend the optimal fertilizer for sustainable agriculture. The seventh edition of the review is complete, Tarbiat Modarres University Press. 358p. [In Persian].
Ministry of Agriculture., 2008. The results of the survey, wheat and barley: Agricultural statistic (2007-2008). 62p. [In Persian].
Nikkhah, H.R., Saberi, M.H., Mahlouji, M., 2010. Study of effective traits on grain yield of two and six row barleygenotypes (Hordeum vulgare L.) under terminal drought stress conditions. Iranian Journal of Crop Sciences. 12(2), 170-184. [In Persian with English Summary].
Plaut, B., Butow, J., Blunemthal, C.S., Wrigley, C.W., 2004. Trunsport of dry matter into developing wheat kernels and is contribution to graibyield under post – an thesis water deficit and evaluated temperature. Field crops Research. 86, 185–198.
Sadras, V.O., and Milro, S.P., 1996. Soil-water thresholds for the responses of leaf expantion and gas exchange: A review. Field Crops Research. 47, 253-266.
Solomon, S., 2007. Climate Change 2007- the Physical Science Basis: Working Group I contribution to the fourth assessment report of the IPCC (Vol. 4). Cambridge University Press., London.
Subhani, G. M., Abdullah, Ahmad, J., Anwar, J., Hussain, M., Mahmood, A., 2015. Identification of drought tolerant genotypes of barley (Hordeum vulgare l.) through stress tolerance indices. The Journal of Animal and Plant Sciences. 25(3), 686-692.
Tas, S., Tas, B., 2007. Some physiological responces of drought stress in wheat genotypes with different ploidity in turkey. World Journal of Agricultural Sciences. 3, 178-183.
Wang, M., Zheng, Q., Shen, Q., Guo, S., 2013. The critical role of potassium in plant stress response. International Journal of Molecular Sciences. 14, 7370–7390.
Xiong, L., Schumaker, K.S., Zhu, J.K., 2002. Cellsignaling during cold, drought, and salt stress. The plantCell. 14, 165-183.
Yadav, R., Gayadin, S., Jaiswal, A.K., 2001. Morpho-physiological changes and variable yield of wheat genotypes under moisture stress conditions. Indian Journal Plant Physiology. 6, 390-394.
Zeng, F., Konnerup, D., Shabala, L., Zhou, M., Colmer, T.D., Zhang, G., Shabala, S.,2014.Linking oxygen availability with membrane potential maintenance and K+retention of barley roots: implications for waterlogging stress tolerance. PlantCell Environment. 37, 2325–2338.