1- Ahmadian A., Ghanbari V., and Siah Sar B. 2011. Effect of drought stress and use of organic and minerals fertilizers on remnants of the yield of German chamomile, Journal of Agricultural Ecology, 3(3): 383-395.
2- Ashraf M., and Foolad M.R. 2007. Roles of glycine, betaine and proline in improving plant abiotic stress resistance. Environmental and Experimental Botany, 59: 206-216.
3- Ashraf M.Y., Azmi A.R., Khan A.H., and Ala S.A. 1994. Effect of water stress on total phenols, peroxidase activity and chlorophyll content in wheat. Acta Physiologiae Plantarum, 16(3): 18 5-191.
4- Bates L.S., Waldren R.P., and Teare I.D. 1973. Rapid determination of free Pro for water stress studies. Plant Soil, 39: 205–217.
5- Blum A., and Ebercon A. 1981. Cell membrane stability as a measure of ought and heat tolerance in wheat. Crop Science, 21: 43-47.
6- Chylinski K.W., Lukaszewska A., and Kutnik K. 2007. Drought response of two bedding plants. Acta Physiology Plant, 29: 399-406.
7- Ghahraman A. 1994. Plant Systematics. Volume III. Tehran. Press center of academic publishing. 306 p.
8- Jensen N.F. 1988. Plant Breeding Methodology. Cornell Univercity. New York. Jogn Wiley, Pp: 379-380.
9- Kamali M., and Goldani M. 2016. Impact of manure treatments, compost and vermicompost on growth and flowering of Petunia hybrida in drought stress. Journal of Science and Technology of Greenhouse Culture, in press
10- Kao C.H. 1981. Senescence of rice leaves. VI. Comparative study of the metabolic changes of senescing turgid and water–stressed excised leaves. Plant and Cell Physiology, 22: 683–685.
11- Khosravi-Far S., Yarnia M., Khorshidi Benam M.B., and Hossein-Zade Moghbeli A.H. 2008. Effect of potassium on drought tolerance in potato variety Agria. In: Proc 10th Ir. Agron and Plants Breed Cong, 358p.
12- Lichtenthaler H. 1987. Chlorophylls and carotenoids: pigments of photosynthetic biomembranes. Methods in Enzymol, 148: 350-382.
13- Maggio A., Miyazaki S., Veronese P., Fujita T., Ibeas J.I., Damsz B., Narasimhan M.L., Hasegawa P.M., Joly R.J. and Bressan R.A. 2002. Does proline accumulation play an active role in stress-induced growth reduction? Plant Journal, 31(6): 699-712.
14- Mahajan S., and Tuteja N. 2005. Cold, salinity and drought stress: an overview. Archives of Biochemistry and Biophysics, 444: 139-158.
15- Mandal K., Saravanan R., and Maiti S. 2008. Effect of different levels of N, P and K on downy mildew (Peronospora plantaginis) and seed yield of Plantago ovata. Crop Protection, 27(6): 988-995.
16- Movahhedi Dehnavi M., Modarres Sanavi A.M., Soroush-Zade A., and Jalali M. 2004. Changes of proline, total soluble sugars, chlorophyll (SPAD) content and chlorophyll fluorescence in safflower varieties under drought stress and foliar application of zinc and manganese. Biaban, 9(1): 93-110.
17- Pessarkli M. 1999. Hand book of Plant and Crop Stress. Marcel Dekker Inc. 697 Pages.
18- Rahmani N., Aliabadi Farahani H., and Valadabadi S.A.R. 2008. Effects of nitrogen on oil yield and its component of calendula (Calendula officinalis L.) in drought stress conditions. Abstracts Book of the world Congress on Medicinal and Aromatic Plants, South Africa p.364.
19- Rajaram S., Van Ginkel M., and Fischer R.A. 1994. CIMMYT’s wheat breeding mega-environments (ME). Proceeding of the 8th International Wheat Genetics Symposium, pp.1101-1106. China Agricultural Scientech, Beijing, China.
20- Razmju J., Shariatmadari N., Khajedin J., Landi A., Namazi Y., Borhani M., and Aslani H. 2004. Effect of environmental stresses on plants of landscape and optimal conditions selected plants. Order of the Municipal Department of Parks and green spaces. Isfahan University of Technology.
21- Selahvarzi Y., Tehrani far A., and Gezanchian A. 2008. Physiomorphological changes under drought stress and rewatering in endemic and exotic turfgrasses. Journal of Horticultural Science and Technology, 9(3): 193-204.
22- Shaban M., Khaje A.A.A., Karim Zade H., Panah Pour A. 2009. Study on Drought Resistance of woody species suitable for green space development. Research in Agricultural Sciences, 1: 57-67.
23- Shams J., Etemdi N., Najafi P., and Rezaii A. 2010. Effect of drought stress on morphological characteristics of three varieties of petunias. Fifth National Conference on New Ideas in Agriculture.
24- Sreevalli Y., Baskaran K., Chandrashekara R., kuikkarni R., SuShil Hasan S., Samresh D., Kukre J., Ashok A., Sharmar Singh K., Srikant S., and Rakesh T. 2001. Preliminary observations on the effect of irrigation frequency and genotypes on yield and alkaloid concentration in petriwinkle. Journal of Medicinal and Aromatic Plant Science, 22: 356-358.
25- Turkan I., Bor M., Ozdemir F., and Koca H. 2005. Differential response of lipid peroxidation and antioxidant in the leaves of drought tolerance (P. acutifolius Gray) and drought sensitive (P. vulgaris L.) subjected to polyethyleneglycol mediated water stress. Plant Science, 168: 223-231.
26- Vieira R.D., Teerony D.M., and Egli D.B. 1991. Effect of drought stress on soybean seed germination and vigor. Journal Seed Technology, 16: 12-21.
27- Wang F., Zeng B., Sun Z., and Zhu C. 2009. Relationship between proline and Hg+2-induced oxidative stress in tolerant rice mutant. Archives of Environmental Contamination and Toxicology, 56(4): 723-731.
28- Zade Bagheri M., Al buali F., Sadeghi H., and Javanmardi Sh. 2014. The effect of irrigation on ionic changes, relative water content, proline content and appearance of Petunia. Journal of Horticultural Science (Agricultural Science and Technology), 28(3): 347-359.