1. Agrawal, R.L. 1992. Seed technology. Oxford and IBH publishing Co. LTD. New Delhi. 376p.
2. Arjomandi, A. 2006. Morphological and taxonomic study of some species of Hawthorn (Crataegus) in the provinces of Golestan, Khorasan and Kerman. M.Sc. dissertation, Department of horticulture, faculty of agriculture, Shahid Bahonar university of Kerman. [In Persian with English Summary].
3. Bishnoi, N.R., Sheroran, I.S., and Singh, R. 1993. Effect of cadmium and nickel on mobilization of food reserves and activities of hydrolytic enzymes in germinating pigeon pea seeds. Biology Plant, 35(4): 583-589. [
DOI:10.1007/BF02928036]
4. Bonner, F. 2008. The woody plant seed manual. United States department of agriculture, agriculture handbook. 727p.
5. Brenda, B., Jenning, W., and Rawlinson, R. 2004. Crataegus saligna (willow hawthorn). University of Colorado Herbarium, Boulder, Co. 37p.
6. Bujarska, B. 2011. Breaking of seed dormancy, germination and seedling emergence of the common hawthorn (Crataegus monogyna Jacq.). Dendrobiology, 47: 61-70.
7. Christensen, K.I. 1992. Revision of Crataegus sect. Crataegus and Nothosect. Crataeguineae (Rosaceae-Maloideae) in the old world. Systematic Botany Monographs, 35: 1-199 [
DOI:10.2307/25027810]
8. Garber, M.P., and Morhead, D.J. 1999. Selection on production and establishment of wetland trees and shrubs. Bulletin-Cooperative Extension Service, University of Georgia, College of Agriculture (USA). 45 p.
9. Ghasemi, A. 2010. The final report of the project and the selection of the most suitable vegetative base for Quince, Isfahan cultivar. First edition, Isfahan Agricultural and Natural Resources Research Center. [In Persian].
10. Gongh, R.E. 1996. Growing trees and shrubs from seeds, Montguid Agriculture MT9604. Montana state University, 24p.
11. Gosling, P. 2007. Raising trees and shrubs from seed. Forestry commission practice guide. Forestry Commission. 18-28.
12. Heidari, M., Rahemi, M., and Daneshvar, M.H. 2008. Effects of mechanical, chemical scarification and stratification on seed germination of Prunus scoparia (Spach.) and Prunus webbii (Spach.) Vierh. AmericanEurasian Journal of Agricultural and Environmental Sciences, 3(1): 114-117.
13. Khoshkhoi, M. 1988. Propagation methods of ornamental plants. Shiraz University Press, 93p. [In Persian].
14. Makkizadeh, M., Farhoudi, R., Naghdi badi, H.A. and Mehdizadeh, A. 2006. Assigning the Best Treatment for Increasing Germination of Three Medicinal Plants Seeds: Rubia tinctourum L., Echinacea angustifolia D.C. and Myrtus communis L. Iranian Journal of Medicinal and Aromatic Plants Research, 22(2): 116-105. [In Persian with English Summary].
15. Mirzadeh Vaghefi, S.S., Jamzad, Z., Jalili, A., and Nasiri, M. 2013. Effect of gibberellic acid, sulfuric acid, and potassium nitrate on germination of three native Iranian hawthorn seeds. Journal of Forest and Wood Products. Iranian Natural Resources Journal, 66(2): 135-146. [In Persian with English Summary].
16. Mirzadeh Vaghefi, S.S., and Nasiri, M. 2013. The effects of physical and chemical factors on the seed germination of Crataegus assadii. Journal of Plant Research (Iranian Biology Journal), 26(3): 366-374. [In Persian with English Summary].
17. Mirzadeh Vaghefi, S.S., Jamzad, Z., Jalili, A., and Nasiri, M. 2010. Study on dormancy breakage and germination in three species of hawthorn (Crataegus aminii, C. persica and C. babakhanloui). Iranian Journal of Forest and Poplar Research, 17(4): 544-559. [In Persian with English Summary].
18. Morgenson, G. 2000. Effects of cold stratification, warm-cold stratification and acid scarification on seed germination of 3 Crataegus species. Tree Planters' Notes 49(3): 72-74.
19. Nasiri, M., Arefi, H.M., and Eisvand, H.R. 2008. Seed germination in Kozal (Diplotaenia damavandica Mozaffarian, Hedge and Lamond). Seed Science and Technology, 36(1): 214-217. [
DOI:10.15258/sst.2008.36.1.25]
20. Peitto, B., and Di Noi, A. 2001. Seed propagation of Mediteranean trees and shrubs. APAT Press, Italy, 99 p.
21. Qrunfleh, M.M. 1993. Studies on the howthorn (Crataegus azarolus), A potential rootstock for Golden Delicious apple and Williams pear. Journal of Horticultural Science, 68(6):983-987. [
DOI:10.1080/00221589.1993.11516439]
22. Williams P.A., and Buxton R.P. 1986. Howthorn (Crataegus monogyna) population in mid-Canterbury. New Zealand Ecological Society, 9: 11-17.
