Abdelmula, A.A., Link W., 1998. Evaluation of drought tolerance in faba bean (Vicia faba L.). Int. Symp. Breed. Oil and Protein Crops, Eucarpia, Apr. 1-4, Pontevedra, pp. 54-55.
Barzan, Z., 2013. Study of chilling tolerance in rapeseed (Brassica napus L.) cultivars at seedling stage and its relationship whith SSR markers. M. Sc. Thesis. P 106.
Blum, A., 1988. Plant Breeding for Environmental Stress. CRC press, USA.
Beltrano, J., Ronco, M.G., 2008. Improved tolerance of wheat plants (Triticum aestivum) to drough stress and rewatering by the arbuscular mycorrhizal fungus Glomus claroideum effect on growth and cell membrane stability. Brazilian Journal of Plant Physiology. 20, 29-31.
Cardona, C.A., Duncan, R.R., Lindstrom, O., 1997. Low temperature tolerance assessment in paspalm. Crop Science. 37, 1283-1291.
Emam, Y., Saghatoleslami, M. H., 2006. Yield Crop: Processes and Physiology. Shiraz University Press. 594p. [In Persian].
Falconer, D.S., Mackay, T.F.C., 1996. Introduction to Quantitative Genetics. Fourth edition. Logman, Inc, New York.
Fernandez, G.C.J., 1992. Effective selection criteria for assessing stress tolerance. In: Kuo, C.G. (ed.), Proceedings of the International Symposium on Adaptation of Vegetables and Other Food Crops in Temperature and Water Stress. AVRDC Publication, Tainan, Taiwan. pp. 257-270.
Galiba, G., 1994. In vitro adaptation for drought and cold hardiness in wheat. Plant Breeding Reviews. 12, 115-162.
Ghorbani, A., Zarinkamar, F., Fallah, A., 2009. The effect of cold stress on the morphologic and physiologic characters of two rice varieties in seedling stage. Jurnal of Crop Breeding. 1(3), 50-66. [In Persian with English Summary].
Hajmohamadnia Ghalibaf, K., Nezami, A., Kamandi, A., 2010. Investigation of possibility the using of electrolyte leakage index for evaluation of cold tolerance in sugar beet cultivars. Iranian Journal of Field Crops Research. 8(3), 465-472. [In Persian with English Summary].
Irigoyen, J.J., Emerich, D.W., Sanchez-Diaz, M., 1992. Water stress induced changes in concentration of prolineand total soluble sugars in nodulated alfalfa (Medicago sativa) plants. Physiology Plants. 84, 55-60.
Jalilian A., Mazaheri, D., Tavakkol Afshari, R., Abdollahian-Noghabi, M., Rahimian, H., Ahmadi, A., 2009. Effect of freezing damage at seedling stage in different sugar beet cultivars. Iranian Journal of Crop Science. 10(4), 400-415. [In Persian with English Summary].
Johnson, R.E., Wichern, D.W., 2008. Applied Multivariate Statistical Analysis (6th Edition). Prentice Hall press. 800p.
Jose, A. I., 2002. Package of Practice Recommendations: Crop. 12th Edition. Kerala Agriculture University, Trichur, Kerala, India, 278p.
Kaya, C., Higges D., Kirnak H., 2001. The effects of high salinity (NaCl) and supplementary phosphorus and potassium of physiology and nutrition development of spinach. Journal of Plant Physiology. 27(3), 47-59.
Kocheki, A., Soltani, A., 1997. Sugar Beet Agronomy. Mashhad University Jihad Press. 200p. [In Persian].
Kyani, H., Hajmohamadnia Ghalibaf, K., 2001. Sugar Beet Qualify. Research and Farming Services Sugar Beet of Khorasan Co. Press. 285p. [In Persian].
Lacic, N., Kovacey L., 2004. Spring frost damage to suger beet in 2003. Plant Doctor. 32(1), 37-40.
Mohamadi Goltapeh, A., Pakdami Sardroud, B., Rezaeidanesh, B., 2000. Pests and Diseases of Sugar Beet. Tarbiat Modares University Press. 275 p.
Molinari, H.B.C., Marur, C.J., Bespalhok, J.C., Kobayashi, A.K., Pileggi, M., Pereira, F.P.P., Vieira, L.G.E., 2004. Osmotic adjustment in transgenic Citrus rootstocks (Carrizo citrange) overproducing proline. Plant Science. 167, 1375–1381.
Nezami, A., Hajmohammadnia Ghalibaf, K., Kamandi, A., 2010. Evaluation of freezing tolerance of sugar beet (Beta vulgaris L.) cultivars under controlled conditions. Environmental Stress in Crop Sciences. 3(2), 177-187. [In Persian with English Summary].
Papagecorgious, G., 1975. Chlorophyll fluorescence: an intrinsic probe of photosynthesis. In: Govindiee, W. (ed.), Bioenergetics of Photosynthesis. Academic Press, New York. pp. 319-371.
Paquine, F., Lechasseur, P., 1979. Observations sure one method dosage 1a Libra-dens les de plants. Canadian Journal of Botany. 57, 1851-1854.
Schapendonk, A.H.C.M., Dolstar, O., Van Kooten, O., 1989. The use of chlorophyll fluorescence as screening method for cold tolerance in maize. Photosynthesis Research. 20, 235-247.
Sharghi, M., Latifi Navid, S., Razavi, M., Zahari, S., 2014. Investigation the effect of cold stress on chlorophyll content and fluorescence in some sugar beet cultivars. National Congress of Organic and Conventional Agriculture, pp.223-220.
Steponkus, P. L., Uemura, M. Webb, M. S., 1993. Redesigning crops for increased tolerance to freezing stress. In: Jackson, M.B., Black, C.R. (eds.), Interating Stresses on Plant in a Changing Climate pp. 697-714.
Uemura, M., Ttominaga, Y.C.S., Nakagawara, A., Shigematsu, M., Kawamura, Y., 2006. Responses of plasma membrane to low temperature. Physiologia Plantarum. 126, 81-89.
Zeinali Yadegari, L., Heidari, R. Karapetian, J., 2010. The effect of cold pretreatment on respiration rates and the contents of proline and phothosyntetic pigments in soybean seedling (Glycine max cv. L17). Iranian Journal of biology. 23 (3), 409-417. [In Persian with English Summary].
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