Document Type : Research Paper


1 M.Sc. Student of Agroecology, Faculty of Science and Agriculture Engineering, Razi University, Kermanshah, Iran

2 Associate Professor. Department of Production Engineering and Plant Genetics, Faculty of Science and Agriculture Engineering, Razi University, Kermanshah, Iran

3 Assistant Professor, Department of Production Engineering and Plant Genetics, Faculty of Science and Agriculture Engineering, Razi University, Kermanshah, Iran


Background and Objectives
Weeds are one of the most important factors that affect and reduce the yield of crops. Hedge parsley produces two shapes of seeds, fluffy and non-fluffy, of their germination behavior little information is available. The aim of this study was to investigate the effect of seed position, burial depth, thermal shock and seed polymorphism on germination percentage of hedge parsley.
Materials and Methods
The experiments were conducted based on factorial experiment in completely randomized design (CRD) with three replications at campus of agriculture and natural resources during years 2016-2017. In the first experiment, the factors included seed position (high, middle and low plants), temperature (20 and 25 C°) and seed shape (fluffy and non-fluffy). In the second experiment, the factors were thermal shock (100, 150 and 200 C°), burial depth (0, 2 and 4 cm) and seed shape (fluffy and non-fluffy).
In the first experiment, with increasing temperature from 20 to 25 C° germination percentage decreased and at 20 C° the highest germination percentage (73.33%) was observed. Seed shape also affected seed germination percentages. In the second experiment, the burial depth had a positive effect on seed germination and with increasing burial depth, seed germination percentage increased. Interaction of thermal shock and burial depth showed that increasing burial depth and temperature increased the percentage of germination (57.14%). In both shapes of seeds, germination percentage increased with increasing burial depth and the highest germination percentage was observed in the maximum burial depth (4 cm).
The results of this study showed that this weed is capable of germination in a wide range of environmental conditions. Germination percentage of hedge parsley increased with increasing burial depth. The optimum temperature for seed germination of hedge parsley is 20 C°. Seed shape was affected on seed germination percentage of hedge parsley.


Main Subjects

Ahmadi, A., Rashed Mohasel, M. H., Khazaee, H. R., Ghanbari, R. and Mousavi, S. K. (2013). Study of weed flora of lentil (Lens culinaris) in Khorramabad. Iranian Journal of Field Crop Research, 11(1), 45-53. [In Farsi]
Auld, T. D. and Denham, A. J. (2006). How much seed remains in the soil after a fire?. Plant Ecology, 187(1), 15-24.
Auld, T. D. and Oconnell, M. A. (1991). Predicting patterns of post‐fire germination in 35 eastern Australian Fabaceae. Australian Journal of Ecology, 16(1), 53-70.
Baskin, C. C. and Baskin, J. M. (2001). Ecology, biogeography, and evolution of dormancy and germination. San Diego, CA: Academic Press.
Baskin, J. M. and Baskin, C. C. (2004). A classification system for seed dormancy. Seed Science Research, 14(1), 1-16.‏
Chauhan, B. S. and Johnson, D. E. (2008 a). Seed germination and seedling emergence of giant sensitiveplant (Mimosa invisa). Weed Science, 56)2), 244-248.
Chauhan, B. S. and Johnson, D. E. (2008 b). Germination ecology of southern crabgrass (Digitaria ciliaris) and India crabgrass (Digitaria longiflora): Two important weeds of rice in tropics. Weed Science, 56(5), 722-728.
Chauhan, B. S. and Johnson, D. E. (2008 c). Germination ecology of chinese sprangletop (Leptochloa chinensis) in the Philippines. Weed Science, 56(5), 820-825.
Chauhan, B. S. and Johnson, D. E. (2010). The role of seed ecology in improving weed management strategies in the tropics. Advances in Agronomy, 105(1), 221-262.
Chauhan, B. S., Gill, G. and Preston, C. (2006). Factors affecting seed germination of annual sowthistle (Sonchus oleraceus) in southern Australia. Weed Science, 54(5), 854-860.‏
Cheplick, G. P. and Sung, L. Y. (1998). Effects of maternal nutrient environment and maturation position on seed heteromorphism, germination, and seedling growth in Triplasis purpurea (Poaceae). International Journal of Plant Sciences, 159(12), 338-350.‏
Copeland, L. and Donald, M. B. (1996). Principles of seed science and technology (4th ed.). London: Springer.
Cristaudo, A., Gresta, F., Luciani, F. and Restuccia, A. (2007). Effects of after‐harvest period and environmental factors on seed dormancy of Amaranthus species. Weed Research, 47(4), 327-334.
Datta, S. C., Evenari, M. and Gutterman, Y. (1970). The heteroblasty of Aegilops ovata L. Israel Journal of Botany, 19(20), 463-483.
Davis, P. H. (1972). Flora of Turkey and the east Aegean islands. Edinburgh, Great Britain: Edinburgh University Press.
De Andrade, L. A. Z. and Miranda, H. S. (2014). The dynamics of the soil seed bank after a fire event in a woody savanna in central Brazil. Plant Ecology, 215(10), 1199-1209.
Deborah, J. and Meyer, L. (1987). Pictures and description of certain Apiaceae (Umbelliferae) fruit not illustrated in U.S. department of agriculture handbook. Journal of Seed Technology, 11(7), 35-41.
Derakhshan, A., Gherekhloo, J., Vidal, R. A. and De Prado, R. (2014). Quantitative description of the germination of littleseed canarygrass (Phalaris minor) in response to temperature. Weed Science, 62(2), 250-257.
Deyhimfard, R., Nazari, Sh. and Aboutalebian, M. (2016). Modeling of germination pattern of two pigwed in response to temperaturer. Plant Protections, 30(2), 328-336. [In Farsi]
Duke, S. (1987). Weed physiology: Reproduction and ecophysiology. Boca Raton, Florida: CRC PressInc.
Gealy, D. R., Young, F. L. and Morrow, L. A. (1985). Germination of mayweed (Anthemis cotula) achenes and seed. Weed Science, 33(1), 69-73.
Hamadi, K. and Zakeri Hoseini, F. (2014). The effect of climate change on the surface temperature profile of soil in Ahvaz. Two Journal of Water Science and Engineering, 4(10), 75-86.
Hanley, M., Unna, J. and Darvill, B. (2003). Seed size and germination response: A relationship for fire-following plant species exposed to thermal shock. Oecologia, 134(4), 18-22.
Hendrix, S. D. and Sun, I. F. (1989). Inter‐and intraspecific variation in seed mass in seven species of umbellifer. New Phytologist, 112(3), 445-451.
Imbert, E. (2002). Ecological consequences and ontogeny of seed heteromorphism. Perspectives in Plant Ecology, Evolution and Systematics, 5(1), 13-36.‏
Kamkar, B., Koocheki, A., Nassiri Mahallati, M. and Rezvani Moghaddam, P. (2006). Cardinal temperatures for germination in three millet species (Panicum miliaceum, pennisetum glaucum and setaria italica). Asian Journal of Plant Sciences, 5(2), 316-319.‏
Keeley, J. E., Pausas, J. G., Rundel, P. W., Bond, W. J. and Bradstock, R. A. (2011). Fire as an evolutionary pressure shaping plant traits. Trends in Plant Science, 16(8), 406-411.
Lee, J., Chauhan, B. S. and Johnson, D. E. (2011). Germination of fresh horse purslane (Trianthema portulacastrum) seeds in response to different environmental factors. Weed Science, 59(4), 495-499.
Lipoma, M. L., Funes, G. and Diaz, S. (2018). Fire effects on the soil seed bank and post‐fire resilience of a semi‐arid shrubland in central Argentina. Austral Ecology, 43(1), 46-55.
Lipoma, M. L., Gurvich, D. E., Urcelay, C. and Diaz, S. (2016). Plant community resilience in the face of fire: Experimental evidence from a semi‐arid shrubland. Austral Ecology, 41(5), 501-511.
Matilla, A., Gallardo, M. and Puga-Hermida, M. I. (2005). Structural, physiological and molecular aspects of heterogeneity in seeds: A review. Seed Science Research, 15(2), 63-76.
Melati, F., Parsa, M. and Lelahgani, B. (2010). Study of germination behaviors and desirable planting dates in Dorema (ammoniacumIranian), Ferola assa-foetida and Ferola gummosa. Journal of Field Crops Research, 8(3), 521-530. [In Farsi]
Mohamed-Yasseen, Y., Barringer, S. A., Splittstoesser, W. E. and Costanza, S. (1994). The role of seed coats in seed viability. The Botanical Review, 60(4), 426-439.
Moravcova, L., Perglova, I., Pysek, P., Jarosik, V. and Pergl, J. (2005). Effects of fruit position on fruit mass and seed germination in the alien species Heracleum mantegazzianum (Apiaceae) and the implications for its invasion. Acta Oecologica, 28(1), 1-10.
Mozaffarian, V. (1966). A dictionary of Iranian plant names: Latin-english-persian. Iran: Farhang Mo'aser. [In Farsi]
Neary, D. G., Klopatek, C. C., DeBano, L. F. and Ffolliott, P. F. (1999). Fire effects on belowground sustainability: A review and synthesis. Forest Ecology and Management, 122(1-2), 51-71.
Negadhasan, B., Zeynali, A., Siahmargoie, A., Ghaderifar, F. and Soltani, A. (2017). Study of the reaction of seed germination of the forgotten plant (Eruca sativa Mill) to some environmental factors. Journal of Plant Production Research, 24(2), 77-91. [In Farsi]
Nosratti, I., Heidari, H., Muhammadi, G. and Saeidi, M. (2016). Germination and emergence characteristics of annual ground cherry (Physalis divaricata). Jordan Journal of Biological Sciences, 9(2), 131-138.
Nosratti, I., Sabeti, P., Chaghamirzaee, G. and Heidari, H. (2017 a). Weed problems, challenges, and opportunities in Iran. Crop Protection, Retrieved from
Nosratti, I., Soltanabadi, S., Honarmand, S. J. and Chauhan, B. S. (2017 b). Environmental factors affect seed germination and seedling emergence of invasive Centaurea balsamita. Crop and Pasture Science, 68(6), 583-589.
Oliveira, M. J. and Norsworthy, J. K. (2006). Pitted morningglory (Ipomoea lacunosa) germination and emergence as affected by environmental factors and seeding depth. Weed Science, 54(5), 910-916.
Ping, L., Yamei, B., Tongyu, X. and Tianzhu, L. (2011). Effects of environmental factors on germination and emergence of Siam weed (Chromolaena odorata). Procedia Environmental Sciences, 10(2), 1741-1746.
Roder, W., Phengchanh, S. and Keobulapha, B. (1997). Weeds in slash‐and‐burn rice fields in northern Laos. Weed Research, 37(2), 111-119.
Scott, K., Setterfield, S., Douglas, M. and Andersen, A. (2010). Soil seed banks confer resilience to savanna grass-layer plants during seasonal disturbance. Acta Oecologica, 36(2), 202-210.
Sester, M., Durr, C., Darmency, H. and Colbach, N. (2006). Evolution of weed beet (Beta vulgaris L.) seed bank: Quantification of seed survival, dormancy, germination and pre-emergence growth. European Journal of Agronomy, 24(1), 19-25.‏
Shakarami, Gh., Zeidali, E. and Mousavi, K. (2011). Weeds and their control (Under the heading provided). Khorrmabad: Khorrmabad Branch of Islamic Azad University Press. [In Farsi]
Ungar, I. A. (1987). Population ecology of halophyte seeds. The Botanical Review, 53(3), 301-334.
Visi, M., Rahimian Mashhadi, H., Alizadeh, H. and Min Bashi, M. O. M. (2014). The Effect of crop rotation management methods and herbicide on weed distribution of wheat farms. Iranian Journal of Crop Sciences, (Agricultural Sciences of Iran), 45(4), 521-530. [In Farsi]
Walker, J., Raison, R. J. and Khanna, P. K. (1986). In Australian soils: The human impact. St Lucia:University of Queenland Press.
Wei, Y., Dong, M. and Huang, Z. Y. (2007). Seed polymorphism, dormancy and germination of Salsola affinis (Chenopodiaceae), a dominant desert annual inhabiting the Junggar Basin of Xinjiang, China. Australian Journal of Botany, 55(4), 464-470.
Whelan, R. J. (1995). The ecology of fire. Cambridge: Cambridge University Press.
Yilmaz, D. D. and Aksoy, A. (2007). Physiological effects of different environmental conditions on the seed germination of Rumex scutatus L. (Polygonaceae). Erciyes Universitesi Fen Bilimleri Enstitüsü Dergisi, 23(1-2), 24-29.
Zhou, J., Deckard, E. L. and Ahrens, W. H. (2005). Factors affecting germination of hairy nightshade (Solanum sarrachoides) seeds. Weed Science, 3(1), 41-45.
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