Abbasi, M. K., Kazmi, M. and Hussan, F. 2005. Nitrogen use efficiency and herbage production of an established grass sward in relation to moisture and nitrogen fertilization. Journal of Plant Nutrition 28: 1693-1708.##Bagayoko, M., Alvey, S., Neumann, G. and Buerkert, A. 2000. Root-induced increases in soil pH and nutrient availability to field-grown cereals and legumes on acid sandy soils of Sudano-Sahelian West Africa. Plant and Soil 225: 117-127.##Balemi, T. 2009. Effect of phosphorus nutrition on growth of potato genotypes with contrasting phosphorus efficiency. African Crop Science Journal 17 (4): 199-212.##Batten, G. D. 1992. A review of phosphorus efficiency in wheat. Plant and Soil 149: 163-168.##Berg, W. K., Cunningham, S. M., Brouder, S. M., Johnson, K. D., Joernand, B. C. and Volenec, J. J. 2005. Influence of phosphorus and potassium fertilization on alfalfa yield and yield components. Crop Science 45: 297-304.##Bhattacharyya, P., Datta, S. C. and Dureja, P. 2003. Interrelationship of pH organic acids and phosphorus concentration in soil solution of rhizosphere and non-rhizosphere of wheat and rice crops. Communications in Soil Science and Plant Analysis 34: 231-245.##Bridgham, S. D., Pastor, J., McClaugherty, C. A. and Richardson, C. J. 1995. Nutrient-use efficiency: A litterfall index, a model, and a test along a nutrient-availability gradient in North Carolina peatlands. The American Naturalist 145 (1): 1-21.##Elanchezhian, R., Krishnapriya, V., Pandey, R., Rao, A. S. and Abrol, Y. P. 2015. Physiological and molecular approaches for improving phosphorus uptake efficiency of crops. Current Science 108: 1271-1279.##Fageria, N. K., Wright, R. J. and Baligar, V. C. 1988. Upland rice genotypes evaluation for phosphorus use efficiency. Journal of Plant Nutrition20: 499-509.##Fletcher, A. L., Moot, D. J. and Stone, P. J. 2008. Solar radiation and canopy expansion of sweet corn in response to phosphorus. European Journal of Agronomy 29: 80-87.##Gahoonia, T. S. and Nielsen, N. E. 1996. Variation in acquisition of soil phosphorus among wheat and barley genotypes. Plant and Soil 178: 223-230.##Gill, H. S., Singh, A., Sethi, S. K. and Behl, R. K. 2004. Phosphorus uptake and use efficiency in different varieties of bread wheat (Triticum aestivum L.). Archives of Agronomy and Soil Science 50:563–572.##Good, A. G., Shrawat, A. K. and Muench, D. G. 2004. Can less yield more? Is reducing nutrient input into the environment compatible with maintaining crop production? Trends in Plant Science9: 597-605.##Gunes, A., Inal, A., Alpaslan, M. and Cakmak, I. 2006. Genotypic variation in phosphorus efficiency between wheat cultivars grown under greenhouse and field conditions. Soil Science and Plant Nutrition52: 470- 478.##Hammond, J. P., Broadley, M. R., White, P. J., King, G. J., Bowen, H. C., Hayden, R. and Spracklen, W. P. 2009. Shoot yield derives phosphorus use efficiency in Brassica oleracea and correlates with root architecture traits. Journal of Experimental Botany 60 (7): 1953-1968.##Hawkesford, M. J. and Barraclough, P. 2011. The molecular and physiological basis of nutrient use efficiency in crops: John Wiley and Sons.##Hawkesford, M., Horst, W., Kichey, T., Lambers, H., Schjoerring, J., Moller, I. S.and White, P. 2012. Functions of macronutrients. In: Marschner, P. (Ed.). Mineral nutrition of higher plants. Academic Press, London, U.K. pp: 135-189.##Heidari, M. 2006. Response of plants to environmental stress. Arass Rayaneh Press. (In Persian).##Horst, W. J., Abdou, M. and Wiesler, F. 1993. Genotypic differences in phosphorus efficiency of wheat. Plant and Soil 155/156: 293-296.##Jami Moeini, M., Modarres Sanavy, S. A. M., Keshavarz, P., Sorooshzadeh, A. and Ganjeali, A. 2010. Relationship between root morphological characteristics and nitrogen use efficiency in six potato cultivars. Iranian Journal of Field Crops Research 8 (3): 444-454. (In Persian with English Abstract).##Liao, M. T., Hocking, P. J.and Dong, B. 2005. Screening for genotypic variation in phosphorus uptake efficiency in cereals on Australian soils. In: Li C. J. (Ed.). Plant nutrition for food security, human health and environmental protection. Tsinghua University Press, Beijing, China. pp: 114-115.##Liao, M. T., Hocking, P. J., Dong, B., Delhaize, E., Richardson, A. E. and Ryan, P. R. 2008. Variation in early phosphorus uptake efficiency among wheat genotypes grown on two contrast in Australian soil. Australian Journal of Agricultural Research 59: 157-166.##Liu, Y., Mi, G., Chen, F., Zhang, J. and Zhang, F. 2004. Rhizosphere effect and growth of two maize (Zea mays L.) genotypes with contrasting P efficiency at low P availability. Plant Science 167: 217-223.##Manske, G. G. B., Ortiz-Monasterio, J. I., Van Ginkel, M., Gonzalez, R. M., Rajaram, S., Molina, E. and Vlek, P. L. G. 2000. Traits associated with improved P-uptake efficiency in CIMMYT’s semidwarf spring bread wheat grown on an acid Andisol in Mexico. Plant and Soil 221: 189-204.##Marschner, H. 1998. Role of root growth, arbuscular mycorrhiza, and root exudates for the efficiency in nutrient acquisition. Field Crops Research 56: 203-207.##Mirzakhani, M. 2009. Effects of co-inoculation of Azotobacter and Mycorrhiza under nitrogen and phosphorus levels on nutrients absorption efficiency in safflower (Carthamus tinctorius L.). Ph. D. Dissertation. Islamic Azad University, Science and Research Branch-Khouzestan, Iran. (In Persian).##Musavi, R. and Sepehr, E. 2013. Phosphorus efficiency of some barley genotypes in the presence of phosphate-solubilizing microorganisms. Journal of Soil and Plant Interactions 4 (4): 27-40. (In Persian with English Abstract).##Osborne, L. D. and Rengel, Z. 2002. Screening cereals for genotypic variation in efficiency of P uptake and utilization. Australian Journal of Agricultural Research53: 837-844.##Ozturk, L., Eker, S., Torun, B. and Cakmak, I. 2005. Variation in phosphorus efficiency among 73 bread and durum wheat genotypes grown in a phosphorus-deficient calcareous soil. Plant and Soil 269: 69-80.##Pan, X.-W., Li, W.-B., Zhang, Q.-Y., Li, Y.-H. and Liu, M.-S. 2008. Assessment on phosphorus efficiency characteristics of soybean genotypes in phosphorus-deficient soils. Agricultural Sciences in China 7 (8): 958-969.##Rengel, Z. 1999. Physiological mechanisms underlying differential nutrient efficiency of crop genotypes. In: Rengel, Z. (Ed.). Mineral nutrition of crops: Fundamental mechanisms and implications. Food Products Press, New York. pp: 227-265.##Ronaghi, A., Adhami, E. and Karimian, N. 2002. Effect of phosphorus and zinc on the growth and chemical composition of corn. Journal of Soil and Water Sciences 6 (1): 105-119. (In Persian with English Abstract).##Sepehr, E., Malakouti, M. J., Kholdebarin, B., Samadi, A. and Karimian, N. A. 2009a. Genotypics variation in P efficiency of selected Iranian cereals in greenhouse experiment. International Journal of Plant Production 3: 17-28.##Sepehr, E., Malakouti, M. J., Kholdebarin, B., Samadi, A. and Karimian, N. A., Samadi, A., Rasouli, H., Nour-Gholipour, F., Rezaei, H. and Khademi, Z. 2009b. Evaluation of phosphorus efficiency in cereals. Iranian Journal of Soil Research (Formerly Journal of Soil and Water Sciences) 23 (2): 125-134. (In Persian with English Abstract).##Shahbazi, K. and Besharati, H. 2013. Overview of agricultural soil fertility status of Iran. Journal of Land Management 1 (1): 1-15. (In Persian with English Abstract).##Smith, F. W., Jackson, W. A. and van den Berg, P. J. 1990. Internal phosphorus flows during development of phosphorus stress in Stylosanthes hamata. Australian Journal of Plant Physiology17: 451-464.##Westerman, R. L. 1990. Soil testing and plant analysis. (3rd Edition). American Society of Agronomy and Soil Science of America, Madison, Wisconsin.##Williams, L. E. 2000. Fertilizer use efficiency and influence of rootstock on uptake and accumulation of nutrients in winegrapes grown in the coastal valleys of California. Proceeding of the Eighth Annual Fertilizer Research and Education Program Conference, Nov. 14, 2000, Tulare, California.##Zhang, H. W., Huang, Y., Xiang-Sheng, Y. and Fang-Sen, X. 2008. Evaluation of phosphorus efficiency in rapeseed (Brassica napus L.) recombinant inbred lines at seedling stage. Acta Agronomica Sinica34 (12): 2152-2159.##
)