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پاسخ جوانهزنی بذر گلگندم مهاجر (Centaurea bruguierana Hand.-Mazz) به عوامل محیطی | ||
| دانش علفهای هرز ایران | ||
| مقاله 9، دوره 16، شماره 2، مهر 1399، صفحه 115-127 اصل مقاله (1.5 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijws.2020.128640.1358 | ||
| نویسندگان | ||
| احمد زارع* 1؛ فاطمه دریس2؛ زهرا کریمی2 | ||
| 1استادیار گروه مهندسی تولید و ژنتیک گیاهی، دانشکده کشاورزی، دانشگاه علوم کشاورزی و منابع طبیعی خوزستان، باوی، ملاثانی، ایران | ||
| 2دانشجوی گروه مهندسی تولید و ژنتیک گیاهی، دانشکده کشاورزی، دانشگاه علوم کشاورزی و منابع طبیعی خوزستان، باوی، ملاثانی، ایران | ||
| چکیده | ||
| گل گندم مهاجر بهعنوان یکی از علفهایهرز پهن برگ، در اکثر مناطق ایران حضور دارد و هیچ اطلاعاتی در مورد بیولوژی جوانه زنی این علف هرز، به خصوص اثر فاکتورهای محیطی بر آن، در دسترس نمیباشد. بهمنظور بررسی پاسخ گل گندم مهاجر(Centaurea bruguierana Hand.-Mazz) به دما (پنج، 10، 15، 20، 25، 30، 35 و 40 درجه سلسیوس)، سطوح مختلف شوری(صفر، 50، 100، 150، 200، 250، 300 و 350 میلی مولار) و خشکی (صفر، 2/0-، 4/0-، 6/0-،8/0-، 1- و 2/1- مگاپاسکال)، سه آزمایش جداگانه در سال 1398 در دانشگاه علوم کشاورزی و منابع طبیعی خوزستان، در قالب طرح کاملاً تصادفی در شش تکرار انجام شد. بیشترین درصد جوانه زنی(10/91 درصد) در 25 درجه سلسیوس اتفاق افتاد و درصد جوانه زنی در دمای پنج، 10، 15، 20و 30 درجه سلسیوس، بهترتیب 27/71، 36/73، 84/80، 59/84 و 97/44 درصد بود. نتایج شوری نشان داد که کاهش 50 درصدی (پارامتر x50 معادله لجستیک) صفات درصد ، جوانه زنی و شاخص جوانه زنی، بهترتیب معادل 71/147، 49/81 و 82/138 میلی مولار بود. همچنین تنش خشکی 66/0-، 040/0- و 58/0- مگاپاسکال، بهترتیب درصد ، سرعت جوانهزنی و شاخص جوانهزنی را % 50 کاهش داد. با افزایش شوری و خشکی، متوسط زمان جوانه زنی افزایش و در بالاترین سطح شوری و خشکی، متوسط زمان جوانه زنی بهترتیب برابر 19/8 و 05/8 روز بود. اطلاعات بهدست آمده از این تحقیق میتواند در پیشبینی گسترش این علف هرز در شرایط تنشهای محیطی در مزارع کشاورزی کمک نماید. | ||
| کلیدواژهها | ||
| خشکی؛ درجه حرارت؛ سرعت جوانه زنی؛ شاخص جوانه زنی؛ شوری؛ متوسط زمان جوانه زنی | ||
| عنوان مقاله [English] | ||
| Seed germination response of Centaurea bruguierana Hand.-Mazz to environmental factors | ||
| نویسندگان [English] | ||
| Ahmad Zare1؛ Fatemeh Deris2؛ Zahra Karimi2 | ||
| 1Plant Production and Genetics Department, Faculty of Agriculture, Agricultural Sciences and Natural Resources University of Khuzestan. Bavi, Mollasani, Iran | ||
| 2Plant Production and Genetics Department, Faculty of Agriculture, Agricultural Sciences and Natural Resources University of Khuzestan. Bavi, Mollasani, Iran | ||
| چکیده [English] | ||
| Centaurea bruguierana is one of the broadleaf weeds in the most regions of Iran and no information is available on its biology of germination, especially the effects of environmental factors on itTo investigate the response of Centaurea bruguierana to temperatures (5, 10, 15, 20, 25, 30, 35 and 40°C), salinity (0, 50, 100, 150, 200, 250, 300 and 350 Mm) and drought stress (0, -o.2, -0.4, -0.6, -0.8, -1 and -1.2 MPa), three separate experiments were conducted in Agricultural Sciences and Natural Resources University of Khuzestan, based on completely randomized design (CRD) with six replicates. Maximum germination percentage (91/10%) accrued at 25°C and germination percentage at 5, 10, 15, 20 and 30 were 71/27%, 73/36%, 80/84% and 44/97%, respectively. The result of salinity revealed that the salinity required for 50% inhibition of germination percentage, rate and index were 147.71, 81.49 and 138.82mM, respectively. Also, 0.66, 0.040 and 0.58 MPa drought stress decreased germination percentage, rate and index by 50%. With increasing salinity and drought, the average germination time increased and at the highest level of salinity and drought, the average germination time was 8.19 and 8.05 days, respectively. The information obtained from this research can help to predict the dynamics of this weed under environmental stresses in agricultural fields. | ||
| کلیدواژهها [English] | ||
| Drought stress, germination index, germination rate, mean germination time, salinity, temperature | ||
| مراجع | ||
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Aroca, R., Porcel, R. and Ruiz-Lozano, M.J. 2012. Regulation of root water uptake under abiotic stres57.s conditions. J. Exp. Bot. 63(1): 43- Baskin, C. C. and Baskin, J.M. 1998. Seeds: Ecology, Biogeography, and Evolution of Dormancy and Germination. New York: Elsevier. Pp: 56–76. Batlla, D. and Benech-Arnold, R.L. 2014. Weed seed germination and the light environment: Implications for weed management. Weed Biol. Manage.14: 77–87. Bremer, K. 1994. Asteraceae: Cladistics and Classification. Timber Press, Portland. Chauhan, B.S. and Johnson, D.E. 2008a. Germination ecology of two troublesome Asteraceae species of rainfed rice: Siam Weed (Chromolaena odorata) and Coat Buttons (Tridax procumbens). Weed Sci. 56:567–573. Chauhan, B.S. and Johnson, D.E. 2008b. Influence of environmental factors on seed germination and seedling emergence of eclipta (Eclipta prostrata) in a tropical environment. Weed Sci. 56: 383–388. Chauhan, B.S., Gill, G. and Preston, C. 2006a. Factors affecting seed germination of annual sowthistle (Sonchus oleraceus) in southern Australia. Weed Sci. 54: 854–860. Chauhan, B.S., Gill, G. and Preston, C. 2006b. African mustard (Brassica tournefortii) germination in southern Australia. Weed Sci. 54:891–897. Ebrahimi, E. and Eslami, S.V. 2012. Effect of environmental factors on seed germination and seedling emergence of invasive Ceratocarpus arenarius. Weed Res. 52:50–59. Florentine, S., Weller, S., Graz, F., Westbrooke, M., Florentine, A., Javaid, M., Fernando, N., Chauhan, B. and Dowling, K. 2016. Influence of selected environmental factors on seed germination and seedling survival of the arid zone invasive species tobacco bush (Nicotianaglauca R. Graham). The Rangeland J. 38: 417–425. Ghaderi-far, F., GHerekhloo, J. and Alimagham, M. 2010. Influence of environmental factors on seed germination and seedling emergence of yellow sweet clover (Melilotusofficinalis). Planta Daninha. 28(3): 463-469. Guillemin, J.P., Gardarin, A., Granger, S., Reibel, C., Munier-Jolain, N. and Colbach, N. 2013. Assessing potential germination period of weeds with base temperatures and base water potentials. Weed Res. 53: 76–87. Hakim, M.A., Juraimi, .A.S., Hanafi, M.M., Selamat, A., Mohd Razi Ismail. S.M. and Karim, R. 2011. Studies on seed germination and growth in weed species of rice field under salinity stress. J. Environ. Biol. 32: 529-536. Javaid, M. and Tanveer, A. 2014. Germination ecology of Emexspinosa and Emex australis, invasive weeds of winter crops. Weed Res. 54: 565–575. Joley, D.B., Maddox, D.M., Mackey, B.E., Schoenig, S.E. and. Casanave, K.A. 1997. Effect of light and temperature on germination of dimorphic achenes of Centaurea solstitialis in California. Can. J. Bot. 75: 2131–2139. Joley, D.B., Maddox, D.M., Schoenig, S.C. and Mackey, B.E. 2003. Parameters affecting germinability and seed bank dynamics in dimorphic achenes of Centaurea solstitialis in California. Can. J. Bot. 81: 993–1007. Joley, D.B., Maddox, D.M., Supkoff, D.M. and Mayfield, A. 1992. Dynamics of yellow starthistle (Centaurea solstitialis) achenes in the field and laboratory. Weed Sci. 40: 190–194. Kader, M.A. 2005. A Comparison of seed germination calculation formulae and the associated interpretation of resulting data. J. Proc. R. Soc. N. S. W. 138: 65–75. Kaya, G., Kaya, M.D., Caliskan, M. and Arslan, Y. 2009. Comparative analysis for germination and seedling growth of wheat with some competitive weeds under salinity. J. Food Agric. Environ. 7: 534-536. Koger, C.H., Reddy, K.N. and Poston, D.H. 2004. Factors affecting seed germination, seedling emergence, and survival of Texas weed (Caperoniapalustris). Weed Sci. 52: 989–995. Lacan, D. and Durand, M. 1996. Na+-K+ exchange at the xylem /symplast boundary. Plant Physiol. 110: 705-711. Lu, P., Sang, W.G. and Ma, K.P. 2006. Effects of environmental factors on germination and emergence of Crofton weed (Eupatorium adenophorum). Weed Sci. 54: 452–457. Martins, C.C., Pereira, M.R.R. and Marchi, S.R. 2011. Germination of Melaleuca quinquenervia seeds under water and salt stress conditions. Planta Daninha. 29(1): 1-6. Michel, B.E. and M.R. Kaufmann. 1973. The osmotic potential of polyethylene glycol 6000. Plant Physiol. 51: 914-916. Negaresh, K. 2019. Centaurea khosraviana (Asteraceae, Cardueae), a new species from NW Iran. Annales Botanici Fennici. 56(1-3): 115-122. Negaresh, K. and Rahiminejad, M.R. 2015. A taxonomic revision of Centaurea sect. Microlophus Asteraceae, Cardueae–Centaureinae) and three new records for the flora of Iran. Nord. J. Bot. 33(3): 335-353. Negaresh, K. and Rahiminejad, M.R .2014. A contribution to the taxonomy of Centaurea sect. Cynaroides (Asteraceae, Cardueae–Centaureinae) in Iran. Phytotaxa. 158(3): 229-244. Negaresh, K. and Rahiminejad, M.R. 2018. A revision of Centaurea sect. Cynaroides (Asteraceae, Cardueae–Centaureinae). Phytotaxa. 363(1): 1-131. Nosratti, I., Abbasi, R., Bagheri, A. and Bromandan, P. 2017. Seed germination and seedling emergence of Iberian starthistle (Centaurea iberica). Weed Biol. Manage. 17: 144–149. Peters, N.C.B., Atkins, H.A. and Brain, P. 2000. Evidence of differences in seed dormancy among populations of Bromussterilis. Weed Res. 40: 467-478. Redondo-Gomez, S., Mateos Naranjo, E., Garzon, O., Cast illo, J.M., Lu que, T. and Figueroa M.E. 2008. Effects of salinity on germination and seedling establishment of endangered Limonium emarginatum (Willd.) O. Kuntze. J. Coastal Res. 24: 201-205. Uygur, S., Smith, L., Uygur, F.N., Cristofaro, M. and Balciunas, J. 2004. Population densities of yellow starthistle (Centaurea solstitialis) in Turkey. Weed Sci. 52(5): 746-753. Wagenitz, G.1980. Centaurea L. In: Flora Iranica (Ed. Rechinger, K. H.) 139b: 313-420. Akademische Druck-U Verlagsanstalt, Graz. Wagenitz, G. 1986. Centaurea in South-West Asia: Patterns of distribution and diversity. Proceedings of the Royal Society of Edinburgh 89B: 11-21. Young, J.A., Clements, C.D., Pitcairn, M.J., Balciunas, J., Enloe, S., Turner, C. and Harmon, D. 2005. Germination-temperature profiles for achenes of yellow starthistle (Centaurea solstitialis). Weed Technol. 19: 815–823. Zhao, N., Li, Q., Guo, W., Zhang, L. and Wang, J. 2018. Effect of environmental factors on germination and emergence of shortawn foxtail (Alopecurus aequalis). Weed Sci. 66(1): 47-56. | ||
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