1.Ahmadi, F., Aminifard, M.H., Khayyat, M.,
and Samad zade, A.R. 2017. Evaluation of
humic acid and planting density on flower
yield and vegetative characteristics of
saffron (Crocus sativus L.). Iran. J. Med.
Aromatic Plants., 33(2): 293-303. (In
Persian)
2. Alvarez-Orti, M., Schwarzacher, T., Rubio,
A., Blazquez, S., Piqueras, A., Fernandez,
J.A., and Harrison, P. 2004. Studies on
expression of genes involved in somatic
embryogenesis and storage protein
accumulation in saffron (Crocus sativus
L.). Acta Hortic., 650: 155-163.
3.Bakry, M.A., Soliman, Y.R., and Moussa,
S.A. 2009. Importance of micronutrients,
organic manure and biofertilizer for
improving maize yield and its components
grown in desert sandy soils. Res. J. Agric.
Biol. Sci., 5(1): 16-23.
4.Fani, R. 2015. The effect of organic and
chemical fertilizers there with humic acid
on saffron corm size in the first year. M.Sc.
dissertation, Faculty of Agriculture,
University of Birjand, Iran.
5.Ghasemi Rooshnavand, R., Hashemi, M.,
and Afzalian, M. 2009. Planting,
conservation and harvesting stages of
saffron. Agric. Org., 132: 33-34.
6. Ghavi, M., and Sadrabadi Haghighi, R.
2015. Effect of the foliar application of
biological, biostimulator and chemical
fertilizers on growth characterestics and
yield of saffron (Crocus sativus L.). J.
Crop. Prod., 8(3): 139-158. (In Persian)
7.Golzari, M. 2016. Effect of bio-fertilizer and
mother corm weight on growth, flower and
stigma yield and qualitative criteria of
saffron. M.Sc dissertation, Faculty of
Agriculture, University of Birjand, Iran.
8.Hassanzadeh Aval, F., Rezvani moghaddam,
P., Bannayan aval, M., and Khorasani, R.
2013. Effects of maternal corm weight and
different levels of cow manure on corm and
flower yield of saffron (Crocus sativus L.).
Soffron. Agr. Technol., 1(1): 22-39. (In
Persian)
9.Kafi, M., Rashed Mohasel, M.H., Koocheki,
A., and Mollafilabi, A. 2002. Saffron,
Production and Processing. Zaban va Adab
Press, Iran. 276p. (In Persian)
10.Koocheki, A. 2013. Research on production
of Saffron in Iran: Past trend and future
prospects. Soffron. Agr. Technol., 1(1): 3-
21. (In Persian)
11.Koocheki, A., Fallahi, H.R., Amiri, M.B.,
and Ehyaei, H.R. 2016. Effects of humic
acid application and mother corm weight on
yield and growth of Saffron. J. Agro.,7(4):
425-442.
12.Koocheki, A., Siahmarguee, A., Azizi, G.,
and Jahani, M. 2011. The effect of high
density and depth of planting on agronomic
characteristic of Saffron (Crocus sativus L.)
and corms behavior. J. Agro., 3: 36–49.
13.Mackowiak, C.L., Grossl P.R., and Bugbee,
B.G. 2001. Beneficial effects of humic acid
on micronutrient availability to wheat. J.
Soil. Sci. Soc. Am., 65: 1744–1750.
14.Mirzapour, M.H., and Khoshgoftarmanesh,
A.H. 2008. Iron fertilization effects on
growth, yield and oil seed content of
sunflower grown on a Saline- sodic
calcareous soil. Agric. Res., 8(4): 61-74.
15.Mohammad Abadi, A.A., Rezvani
Moghaddam, P., and Fallahi, J. 2011.
Effects of planting pattern and the first
irrigation date on growth and yield of
saffron (Crocus sativus L.). J. Agr., 3(1):
84-93.
16.Mozaffari, S., khorasaninejad, S., and
gorgini shabankareh, H. 2016. Effects of
Irrigation content based on field capacity
percent and humic acid on
morphophysiological traits on medicinal
plant (Portulaca oleracea L.). J. Crop.
Prod., 9(3): 153-175. (In Persian)
17.Nardi, S., Concheri, G., and Dell’Agnola,
G. 1996. Biological activity of humic
substances. In: Piccolo, A., (Ed.), Humic
Substances in Terrestrial Ecosystems.
Elsevier, Amsterdam, Pp: 361–406.
18.Omid Beigi, R., Ramezani, A., Sadeghi, B.,
Ziyarat nia, M. 2003. Effect of corm weight
on yield of saffron in Neishabour. 3nd
Internation Conferance Saffron of Iran.
Mashhad, 11-12 Dec 2003. Pp: 34-37.
19.Osmani Roudi, H.R., Masoumi, A., Hamidi,
H., and Razavi, A.R. 2015. Effects of first
irrigation date and organic fertilizer
treatments on saffron (Crocus sativus L.)
yield under Khaf climatic conditions.
Soffron. Agr.Technol., 3(1): 25-33. (In
Persian)
20.Sabzevari, S., Khazaie, H.R., and Kafi, M.
2010. Study on the effects of humic acid on
germination of four wheat cultivars
(Triticun aestivum L.). Iran. J. Field. Crops.
Res., 8(3):473-480. (In Persian)
21.Sadeghi, B. 2012. Effect of corm weight on
saffron flowering. In: Proceedings of the 4th
International Symposium on Saffron
Biology and Biotechnology. Kashmir,
India, 22-25 October 2012. Pp: 114-117.
22.Sharif, M., Khattak, R.A., and Sarir, M.S.
2002. Effect of different levels of lignitic
coal drive humic acid on growth of maize
plants. Commun Soil Sci. Plant. Anal., 33:
3567-3580.
23.Varanini, Z., Pinton, R., De Biasi, M.G.,
Astolfi, S., and Maggioni, A. 1993. Low
molecular weight humic substances
stimulated Hb-ATPase activity of plasma
membrane vesicles isolated from oat
(Avena sativa L.) roots. Plant Soil., 153:
61–69.