نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشگاه یاسوج

2 گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه یاسوج، یاسوج، ایران

چکیده

با وجود صفات مطلوب کیفی ذرت شیرین، کشت این گیاه به‌جهت ضعف برخی ویژگی‌های جوانه‌زنی، بنیه ضعیف، چروکیده‌گی بذر و استقرار ضعیف گیاهچه در خاک محدود می‌باشد، استفاده از ترکیبات معدنی در پوشش‌دهی بذر می‌تواند شاخص‌های جوانه‌زنی، ویژگی‌های گیاهچه‌ای و فیزیکی بذر ذرت شیرین را بهبود دهد. برای بهبود کارایی بذر ذرت شیرین با استفاده از پوشش‌دهی بذر، پژوهشی در آزمایشگاه فناوری بذر دانشکده کشاورزی دانشگاه یاسوج در سال 1397 به صورت فاکتوریل سه عاملی در قالب طرح کاملاً تصادفی با چهار تکرار 25 بذری اجرا شد. عامل اول شامل غلظت‌ محلول‌های کیتوزان (صفر -اسید استیک 3/0 درصد، 5/0 و 75/0 درصد) ، عامل دوم صمغ عربی (صفر -آب مقطر و 4/0 درصد) و عامل سوم ترکیب پوششیV10K2.5P5 (ورمی‌کولیت (V) با نسبت وزنی 10 برابر وزن بذر، کائولن (K) با نسبت وزنی 5/2 برابر وزن بذر و پرلیت (P) با نسبت وزنی 5 برابر وزن بذر) و عدم وجود ترکیب پوششی بود. نتایج اثر برهمکنش صمغ عربی و ترکیب پوششی در سطح کیتوزان 5/0 درصد نشان داد که بیشترین شاخص طولی بنیه گیاهچه (24/183) مربوط به تیمار پوششی صمغ عربی 4/0 درصد و ترکیب پوششی V10K2.5P5 بود که با کمترین شاخص طولی بنیه گیاهچه (70/85) از تیمار پوششی صمغ عربی 4/0 درصد و عدم وجود ترکیب پوششی اختلاف معنی داری نشان داد. نتایج کلی آزمایش نشان داد که تیمار پوششی کیتوزان 5/0 درصد+ ترکیب پوششی V10K2.5P5+ صمغ عربی 4/0 درصد در مقایسه با دیگر تیمارهای آزمایش اثر بخشی بیشتری بر روی شاخص‌های جوانه‌زنی و ویژگی های بذر ذرت شیرین داشت.

کلیدواژه‌ها

Akram Qaderi, F., b. Kamkar, and A. Soltani. 2014. Seed science and technology. Third edition. Publications University of Mashhad, Iran. (In Persian)
Akramian, M., A. Hosseini, M. Kazerooni, and M. J. Rezvani. 2007. Effect of seed osmopriming on germination and seedling development of fennel (Foeniculum vulgare mill.). Iran. J. Field Crop Sci. 5(1): 37-46.
 Almansouri, M., J. M. Kinet, and S. Lutts. 2001. Effect of salt osmotic stresses on germination in durum wheat (Triticum durum Desf.). Plant Soil. 231: 243-254.
Bajji, M., J. M. Kinet, and S. J. Lutts. 2002. Osmotic and ionic effects of NaCl on germination, early seedling growth, and ion content of Atriplex halimus (Chenopodiaceae). Can. J. Plant Sci. 80(3): 297-304.
Barghmadi, R. 2013. The effect of seed coating with trichoderma and bacteria and seed storage conditions on growth components and control of Rhizoctonia soybean disease. Master's thesis, University of Tehran, Iran. (In Persian, with English Abstract)
Copeland, L. O. and M. B. McDonald. 2001. Principles of Seed Science and Technology. 4th. ed., Springer Science+Buisiness Media, LLC., Boston, U.S.
Dana, M. N. and R. B. Lerner. 2001. Starting seeds indoors, in: General horticulture. Purdue University Northwest. p. 37–42.
Defang, Z. and L. Xinrong. 2012. Physiological Effects of chitosan coating on Wheat growth and activities of Protective Enzyme with Drought Tolerance. Open J. Soil Sci. 2(3): 282-288.
Devlieghere, F., A. Vermeulen, and J. J. Debevere. 2004. Chitosan: Antimicrobial activity, interactions with food components and applicability as a coating on fruit and vegetables. Food Microbiol. 21(6): 703-714.
Doulat Kordestani, M., M. Taghvaee, F. Afzali, and M. Zarei. 2012. Investigation of the effect of organic coating on the early vigor of (Calotropis procera L.). First National Desert Conference (Science, Technology and Sustainable Development.) International Desert Research Center, University of Tehran. June 27 to 22. (In Persian)
Eskandarnejad, S., S. Khavari Khorasani, S. Bakhtiari, and A. Heidaria. 2013. Effect of row spacing and plant density on yield and yield components of sweet corn (Zea mays L.) varieties. (In Persian, with English Abstract). Adv Crop Sci. 3(1): 81-88.
Farooq, M., A. Wahid, and H. M. Kadambot Siddique. 2012. Micronutrient application through eedtreatments a review. J. Soil Sci. Plant Nutr. 12(1): 125-142.
Guan, Y. J., J. Hu, X. J. Wang, and C. X. Shao. 2009. Seed priming with chitosan improves maize germination and seedling growth in relation to physiological changes under low temperature stress. J ZHEJIANG UNIV-SC A. 10(6): 427-433.
Havard, I. and D. Trener. 1995. Legume seed inoculation technology- areview. Soil Biol. Biochem. 36: 1275-1288.
Hosseini, 2017. The effect of bio-priming and seed coating on some of germination and seedling growth indices in anise (Pimpinella anisum L.) under drought stress. M.Sc. Thesis. Faculty of Agriculture, Yasuj University, Iran.(In Persian, with English Abstract)
Ikic, I., M. Maric evic, S. Tomasovic, J. Gunjaca, Z. S. Atovic, and H. S. Arcevic. 2012. The effect of germination temperature on seed dormancy in Croatian-grown winter wheats. Euphytica. 188: 25-34.
International Seed Testing Association (ISTA). 2010. International rules for seed testing. ISTA, Bassersdorf, Switzerland.
Kephart, K. D., D. M. Wichman, K. Topinka, and K. J. Kirkland. 2004. Seeding date and polymer seed coating effects on plant establishment and yield of fall seeded canola in the Northern Great Plains. Can. J. Plant Sci. 84: 955-963.
Kiran, S. P., R. Paramesh, G. Nishanth, K. Channakeshava, and B. Niranjana Kumara. 2014. Influence of Seed Pelleting on Seed Quality of Sunflowerhybrid seed production of KBSH-53 (Helianthus annus L.). Int. J. Plant Breed. 3(2): 2277–2288.
Mahdavi, H. and S. Maleki Farahani. 2014. Investigating the effect of seed coating with low-consumption element solution on germination and some sugar beet growth characteristics. Conference on Seed Science and Technology. Sept. 4-6. Pages 1-3.
Mehrabi, H. R., M. R. Chaichi, R. Tavakolafshari, H. Madah Arefi, and Gh. Zahedi Amiri. 2010. Effects of seed coating methods on seed germination of Sanguisorba minor in different soil moisture levels and sowing depths. Iranian J. Range. Desert Res. 17(3): 489-498.(In Persian)
Miller, T. and S. J. Chapman. 1978. Germination responses of three forage grasses to different concentration of six salts. J. Range. Manag. 31(2): 123-124.
Moomeni, Kh. 2017. Influence of bio-priming, hormone priming and seed coating on the quality and germination characteristics of parsley Seed (Petroselinum crispum). M.Sc. Thesis, Faculty of Agriculture, Birjand University.(In Persian, with English Abstract)
 Pagter, M., C. Bragato, M. Malagoli, and H. J. Brix. 2009. Osmotic and ionic effects of NaCl and Na2So4 salinity on Phragmites australis. Aquat. Bot. 90(1): 43-51.
Piri, R. 2016. The Effect of bio-priming and seed coating on some germination and seedling growth indices of cumin (Cuminum cyminum L.) under drought stress, M.Sc. Thesis, Faculty of Agriculture, Yasuj University, Iran. (In Persian, with English Abstract)
Rattin, J., A. Di Benedetto and T. Gomatti. 2006. The effects of transplant in sweet maize (Zea mays L.) growth and yield. J. Agric. Res. 1(1): 58-67.
Saadat, F. M. and R. Ehteshami. 2015. Effect of seed coating with micronutrients on some germination and vigor characteristics of marigold (Calendula officinalis). Iranian J. Seed Sci. Res. 2(2): 29-40. (In Persian, with English Abstract)
Saadat, F. M. and R. Ehteshami. 2016. Effect of seed coating with growth promoting bacteria and micronutrients on maize germination indices. Iranian J. Seed Sci. Res. 3(2): 81-94. (In Persian, with English Abstract)
Schultheis, J. R. 2010. Sweet corn production II. North Carolina Cooperative extension Service; State, North Carolina State University, U.S.A., Department. Revised 12/94: 201.
Scott, D. 1998. Effects of seed coating on establishment. NEW ZEAL J AGR RES. 18: 59-67.
Shaarbaf esfahani, A., M. Basiri, M. Karimzadeh, and S. M. Teacher Hashemi. 2009. The effect of seed pelleting and the use of germination inhibitors in alfalfa, mung bean and sainfoin varieties for autumn cultivation. Iranian J. Rang. Desert Res. 2(16): 137-149. (In Persian, with English Abstract)
Shakib, S. 2014. The effect of different seedling methods on seed germination of Fortuynia bungei boiss under drought and low temperature conditions. M.Sc. Thesis, University of Tehran, Iran (In Persian, with English Abstract).
Silva-Castro, I., J. Javier Diez, P. Martín-Ramos, G. Pinto, A. Alves, J. Martín-Gil  and J. Martín-García. 2018. Application of Bioactive Coatiing Based on Chitosan and Propolis for Pinus spp. Protection against Fusarium circinatum. Forests. 9(11): 2-14.