1. Mozafariyan V. Felour of Iran (Asteraceae family). Research Institute of Forests and Range Lands Press. Pp. 2008;21-22.

2. Zargari, A. Medicinal plants. University of  Tehran Press. 1996;125-126.

3. Newall CA, Anderson, LA, Phillipson JD. Herbal medicines: a guide for health-care professionals. London: Pharmaceutical Press. 1996;296.

4. Yang QH, Wei X., Zeng XL, Ye WH, Yin XJ, Zhang-Ming, W, Jing YSH. Seed biology and germination ecophysiology of Camellia nitidissima. Forest Ecol. Management. 2008;255:113-118.

5. Thomas SG, Rieu I, Steber CM. Gibberellin metabolism and signaling. Vitam Horm. 2005;72:289-338.

6. Henderson JT, Li HC, Rider SD, Mordhorst AP, Romero-Severson J. PICKLE acts throughout the plant to repress expression of embryonic traits and may play a role in gibberellin-dependent responses. Plant Physiol. 2004;134:995-1005.

7. Yamauchi Y, Ogawa M, Kuwahara A, Hanada A, Kamiya Y, Yamaguchi S. Activation of gibberellin biosynthesis and response pathways by low temperature during imbibitions of Arabidopsis thaliana seeds. Plant Cell. 2004;16:367-78.

8. Shanmugavalli, M, Renganayaki PR, Menaka C. Seed dormancy and germination improvement treatments in fodder sorghum. Int. Crops Res. Inst. Semi-Arid Tropics. 2007;3:1-3.

9. Bewley JD, Black M. Seeds: Physiology of Development and Germination. Second Edition, Plenum, press, New York. 1994.

10. McDonald, MB. Seed priming, Seed Technology and Its Biological Basis. Eds. M. Black, J.D. Bewley. Sheffield: Sheffield Academic Press. 287-325.

11. Helsel DG. Helsel, ZR, Minor, HC. 1986. Field studies on osmoconditioning soybeans. Field Crops Res. 2000;14:291-297.

12. Alvarado AD, Bradford KJ, Hewitt JD. Osmotic priming of tomato seeds: effect on germination, field emergence, seedling growth and fruit yield. J Amer Society Hort Sci. 1987;112:427-432.

13. Evans TA, Pill WG. Emergence and seedling growth from osmotically primed or pregerminated seeds of asparagus (Asparagus officinalis). J Hort Sci. 1989;64:275-282.

14. Bradford K.J, Steiner JJ, Trawatha SE. Seed priming influence on germination and emergence of pepper seed lots. Rop Sci. 1990;30:718-721.

15. Khan A, Khan Khalil S. Effect of leaf area on dry matter production in aeratedmung bean seed. Int J Plant Physiol Biochem. 2010;2:52-61.

16. Kaya C, Higges D, Kirnak H. The effects of high salinity (NaCl) and supplementary phosphorus and potassium on physiology and nutrition development of spinach. BULG. J. Plant Physiol. 2001;27:47-59.

17. Ellis, RH, Roberts, EH. The quantification of ageing and survival in orthodox seeds. Seed Sci. Technol. 1981;9:377-409.

18. Ashraf M, Foolad,MR. Pre-sowing seed treatment- A shotgun approach to improve germination, plant growth and crop yield under saline and non-saline conditions. Advan Agron. 2005;88:223-271.

19. McDonald MB. Seed deterioration: physiology, repair and assessment. Seed Sci. Technol. 1999;27:177-237.

20. Pill WG. Low water potential and pre-sowing germination treatments to improve seed quality. Seed Quality. Ed. A.S. Basra. New York: Food Products Press. 1995;319-359.

21. Mohammadi GR. The effect of seed priming on plant traits of late spring seeded soybean (Glycine max L.). American-Eurasian J Agric & Environ Sci. 2009;5:322-326.

22. ISTA, Handbook on Seedling Evaluation. Int. Seed Testing Assoc. Zurich. 2008;51

23. Kotowski F. Temperature relation to germination of vegetable seeds. Proceeding of American Society Horticulture Science. 1926;23:176-184.

24. Maguire JD. Speed of germination: aid in selection and evaluation for seedling vigor. Crop Sci. 1962;2:176-177.

25. Abdul-baki AA, Anderson JD. Vigor determination in soybean seed by multiple criteria. Crop Sci. 1975;13:630-633.

26. Lekh R, Khairwal IS. Evaluation of pearl millet hybrids and their parents for germ inability and field` emergence. Indian J. Plant Physiol. 1993;2:125-127.

27. Khaninejad S, Hessam Arefi I. Kafi M. Effect of Priming on Dormancy Breaking and Seedling Establishment of Caper (Capparis spinosa L.). Int. Conference Appl. Life Sci. 2012;365-370.

28. Dewir YH, Mahrouk ME, Naido Y. Effect of some mechanical and chemical treatments on seed germination of Sabal palmetto and Thrinax morrisii palms. Aust J Crop Sci. 2011;5:248-253.

29. Tilki F. Improvement in seed germination of Arbutus unedo L. Pakistan J Biol Sci. 2004;7:1640-1642.

30. Paparozzi ET, Machado de Mello A, Augusto Streck N, Blankenship EE. Gibberellic Acid Promotes Seed Germination in Penstemon digitalis cv. Husker Red Hort Sci. 2009;44:870-873.

31. Bocian S, Hołubowicz R. Effect of different ways of priming tomato (Lycopersicon esculentum) seeds on their quality. Polish J Natural Sci. 2008;23:729-739.

32. Amri E. Germination of Terminalia sericea Buch. Ex DC seeds: Effects of temperature regime, photoperiod, gebberellic acid and potassium nitrate. Int J Appl Biol Pharm Technol. 2011;2:104-110.

33. Rahmanpour A, Majd AF. Breaking dormancy and germination method of the seed of Eremurus stenophyllus by physical and chemical method. Res Sci J Arom Medicinal plant. 1999;21:357-370.

34. Liopa-Tsakalidi A, Barouchas PE. Salinity, chitin and GA3 effects on seed germination of chervil (Anthriscus cerefolium). Aust J Crop Sci. 2011;5:973-978.

35. Dissanayake P, George DL, Gupta ML. Direct seeding as an alternative to transplanting for guayule in southeast ueensland. Industrial crops. Products. 2008;27:393-399.

36. Shanmugavalli M, Renganayaki PR, Menaka C. Seed dormancy and germination improvement treatments in fodder sorghum. Int. Crops Res. Inst Semi-Arid Tropics. 2007;3:1-3.

37. Ameen NM, Al-Imam A. Effect of soaking periods, gibberellic acid and benzyladenine on pistachio seeds germination and subsequent seedling growth (Pistacia vera L.). Mesoptamia J Agric. 2007;35:8.

38. Khan A, Khan Khalil S. Effect of leaf area on dry matter production in aeratedmung bean seed. Int J Plant Physiol Biochem. 2010;2:52-61.