نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه زراعت و اصلاح نباتات، واحد رشت، دانشگاه آزاد اسلامی، رشت، ایران

2 دانشگاه آزاد اسلامی واحد رشت

چکیده

پرایمینگ نقش مهمی بر بنیه بذر و گیاه‌چه دارد. عامل اول این پژوهش؛ دو رقم برنج (خزر و هاشمی) و عامل دوم؛ ده سطح تیمار پرایمینگ (T1-T10) بود. آزمون‌های بنیه بذر و ارزیابی گیاه‌چه بر اساس دستورالعمل ISTA انجام شد. نتایج نشان داد که، رقم خزر از نظر وزن تر ریشه‌چه (7/14 میلی‌گرم) و تعداد ریشه‌چه (5)، نسبت به رقم هاشمی برتر بود. مدت زمان لازم (ساعت) برای رسیدن به 50% جوانه‌زنی (R50) در رقم خزر، 50 ساعت و در رقم هاشمی، 41 ساعت بود که بر این اساس رقم هاشمی از یکنواختی بالاتری در جوانه‌زنی برخودار است. تیمار پرایمینگ با KCl بالاترین مقدار هدایت الکتریکی را ایجاد کرد. کمترین زمان لازم برای رسیدن به 5، 10 و 50 درصد جوانه‌زنی به ترتیب با 13، 16 و 32 ساعت، مربوط به تیمار هایدروپرایمینگ بود. همچنین بیشترین سرعت جوانه‌زنی مربوط به تیمار هایدروپرایمینگ بود. کمترین زمان تا رسیدن به 95 درصد جوانه‌زنی با 66 ساعت، در تیمار هایدروپرایمینگ رقم هاشمی محاسبه شد. بیشترین استقرار گیاهچه در روز بیستم بعد از کاشت در مزرعه مربوط به بذر بدون تیمار پرایمینگ بود. تیمار هایدروپرایمینگ به دلیل هزینه پایین و اثرگذاری مثبت در سرعت و یکنواختی جوانه‌زنی در رقم هاشمی به کاربران توصیه می‌شود.

کلیدواژه‌ها

Abdul Shukor, J., Md. P. Anwar, A. Selamat, A. Puteh, and K. Azmi. 2012. The influence of seed priming on weed suppression in aerobic rice. Pak. J. Weed Sci. Res. 18: 257-264.
Afzal,S., A. Butt, A. Afzal, S. M. A. Basra, and U. H. Rehman. 2012.Alleviation of salt stress in fine aromatic rice by seed priming. Aust. J. Crop Sci. 6: 1401‒1407.
Akira, A., T. Hiroki, F. Takahiro, A. Koichiro, K. Mikiko, S. Hitoshi, U. Aiko, M. Makoto, and T. Ryohei. 2012. OsGA20ox1, a candidate gene for a major QTL controlling seedling vigor in rice (Oryza sativa L.). Theor.Appl. Gen. 125: 647–657.
Allahgholipour Mehrzad, M, and S. Mohammadsalehi. 2004. Characterization of Some Local Rice Cultivars under Guilan Conditions. Rice Research Institute Publications, Iran (In Persian).
Basra, S.M.A., M. Farooq, K. Hafeez, and N. Ahmed. 2004. Osmohardening: A new technique for rice seedinvigoration. Intl. Rice Res. Notes.27: 74–75.
Basra, S. M. A., M. Farooq, R. Tabassum, and N. Ahmed. 2005. Physiological and biochemical aspects of seedvigour enhancement treatments in fine rice (Oryza sativa L.). Seed Sci. Technol.33: 623–628.
Bewley, J.D. 1997.Seedgermination and dormancy.Plant Cell. 9:1055-1066.
Bradford, K.J. 1986.Manipulation of seed water relations via osmotic priming to improve germination under stress conditions. Hort. Sci. 21: 1105-1112.
Chiu, K.V., C. S. Wang, and J. M. Sung. 1995. Lipid proxidation and peroxide scavenging enzymes associated with accelerate aging and hydration of water melon seed hidiffering in ploidy. Phsiolgia Plantrum. 94: 441-446.
Cruz, R.P., S. C. K. Milach, and L. C. Federizzi. 2006. Inheritance of rice coldtolerance at the ermination stage. Gen. Mol. Biol. 29: 314-320.
Deshpande V. N., B. D. Waghmode, V. V. V. Dalvi, and P. B. Vanave. 2003. Naphthaleneacetic acid holds promise in hybrid rice seed production. Ind. J. Gen. Plant Breeding. 63(2): 157–158.
Di Girolamo, G. and L. Barbanti. 2012. Treatment conditions and biochemical processes influencing seed priming effectiveness. Intl. J. Agron. 7: 178-188.
Du, L. V., and T. P. Tuong. 2002. Enhancing the performance of dry-seeded rice: effects of seed priming, seedling rate and time of seedling. In: Pandey, S., M. Mortimer, L. Wade, T. P. Tuong, K. Lopes and B. Hardy (eds.), Direct Seeding: Research Strategies and Opportunities. Intl. Rice Res. Ins., Los Baños, Philippines, pp. 241–256.
Farooq, M., S. M. A. Basra, K. Hafez, and S. A. Asad. 2005. Use of commercial fertilizers as osmotica for rice priming. J. Agric. Soc. Sci.1 (2): 172-175.
Farooq, M., A. Basra, and A. Wahid. 2006. Priming of field-sown rice seed enhances germination, seedling establishment, allometry and yield. Plant Growth Reg. 49: 285–294.
Farooq, M., S. M. A. Basra, A. Wahid, A. Khaliq, and N. Kobayashi. 2009. Rice seed invigoration. pp 137–175 In: E. Lichtfouse (ed.), Sustainable Agriculture Reviews– Book Series. Springer.
Farooq, M., A. Wahid, N. Ahmad, and S.A. Asad. 2010. Comparative efficacy of surface rying and re-drying seed priming in rice: changes in emergence, seedling growth and associated metabolic events. Paddy Water Environ. 8: 15–22.
Ghiyasi, M., R. Tajbakhsh, and A. Amini. 2011. Effect of osmopriming on harvested seed vigor of maize (Zea mays L.). Adv. Environ. Bio. 5(11): 3540-3542.
Gonzales, A., A. J. Gordan, C. L. James, and C. Arrese-Igor. 1995. The role of sucrose synthase in response of soybean nodules to drought. J. Expt. Bot. 46: 1515-1523.
Harris, D. 1996.The effect of manure, genotype, seed priming, depth and date of sowing on the emergence and early growth of Sorghum bicolor L. Moench in semi arid Bostswana. Soil Tilage Res. 40: 73-88.
ISTA, 2009.International Rules for Seed Testing.Edition (2009).
Judi, S., and F.Sharizadeh. 2004. Investigation of hydro-priming effects on barley cultivars. J. Des. 11: 99-109.
Kaur, S., A. K. Gupta, and N. Kaur. 2002. Effect of osmo and hydro priming of chickpea seeds onseedling growth and carbohydrate metabolism under water deficit stress. Plant Growth Reg. 37: 17-22.
Kazemnejad, M, and A. Mahmoudi. 2007. Production Costs and Trends in Rice Prices (Challenges, Outlook and Solutions). Ministry of Agriculture, Deputy of Planning and Economics, Institute of Planning and Agricultural Economics Research (In Persian).
Maroufi, K., H. Farahani Aliabadi, and O. Moradi. 2011. Thrmo priming influence on seedling production in wheat (Triticum aestivum L.). Adv. Envion. Biol. 5(11): 3664-3667.
Pandey, S., and L.E. Velasco. 2002. Economics of direct seeding in Asia: patterns of adoption and research priorities. In: Pandey, S., M. Mortimer, L. Wade, T.P. Tuong, K. Lopes and B. Hardy(eds.), Direct Seeding: Research Strategies and Opportunities. International Rice Research Institute, Los Baños, Philippines.
Rashid, A., P. A. Hollington, D. Harris, and P. Khan. 2006. On farm seed priming for barely on normal, saline and sodic soils in North West Frontier province, Pakistan. 24: 276-281.
Redona, E.D., and D. J. Mackill. 1996. Genetic variation for seedling vigor traits in rice. Am. Soc. Agro. 36: 285-290.
Rehman, H., S. M. A. Basra, M. Farooq, N. Ahmed, and I. Afzal. 2011. Seed priming with CaCl2 improves the stand establishment, yield and quality attributes in direct seeded rice (Oryza sativa). Intl. J. Agric. Biol. 13 (5): 786–790.
Ross C., R. W. Bell, and P. F. White. 2000. Phosphorus seed coating and soaking for improving seedling growth of (Oryza sativa L.) (rice) cv. IR66. Seed Sci. Technol. 28: 391–401.
Ruan S. L., X. Q. Zhong, W. Q. Hua, S. L. Ruan, Q. Z. Xue, and Q. H. Wang. 2003. Physiological effects of seed priming on salt-tolerance of seedlings in hybrid rice (Oryza sativa L.). Sci. Agric. Sinica. 36: 463–468.
Samiullah, A.F., and D. Khan. 1997. Improving performance of Brassica junacoa by seed treatment with pyridoxine. Newzland J.Crop Hortic. Sci. 25: 43-47.
Sikder, S., M. A. Hasan, and M. S. Hossain. 2009. Germination characteristics and mobilization of seed reserves in maize varieties as influenced by temperature regimes. J. Agric. Rural Develop. 2: 51- 56.
Singh, A. K., B. U. Choudhury, and B. A. M. Bouman. 2002. Effects of rice establishment methods on crop performance water use and mineral nitrogen. Proceedings of the International Workshop on Water-wise Rice Pro-duction. Intl. Rice Res. Inst., Los Bano˜s, Philippines, pp.237–246.
Sivritepe, N., H. O. Sivritepe, and A. Eris. 2003.The effects of NaCl priming on salt tolerance in melon seedling grown under saline conditions. Sci. Hortic.97: 229- 237.
Soltani, A., E. Zeinali, S. Galeshi, and N. Latifi. 2001. Genetic variation for and interrelationships among seed vigor traits in wheat from the Caspian Sea Coast of Iran. Seed Sci. Technol. 29: 653-662.
Sung, F.J., and Y. H. Chang. 1993. Biochemical activities associated with priming of sweet corn seeds to improve vigor. Seed Sci. Technol. 21: 97-105.
Tavakol Afshari, R., S. Afshari, and N. Majnon Hoseini. 2007. Effect of Abscisic acid and Cytokinins on seed germination and vigor of deterioration rape seed under high drought stress. J. Agron. Sci. 39: 194-179.
Vieira A. R., M. G., Vieira, A. C. Fraga, J. A. Oliveira, C. D. Santos, G. G. Vieira, and C. D. Santos. 2002. Action of gibberellic acid (GA3) on dormancy and activity of alpha-amylase in rice seeds. Revista Brasileira de Sementes. 24: 43–48.
Yari, L., A. Zareyan, S. Sheidaie, and F. Khazaei.2012.Influence of high and low temperature treatments on germination and seedling vigor of rice (Oryza sativa L.).World Appl. Sci. J. 16 (7): 1015-1018.