تاثیر امواج التراسونیک و تنش خشکی بر برخی صفات ذرت

نوع مقاله: مقاله پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی دانشگاه شاهرود، شاهرود، ایران

2 دانشیار، گروه زراعت و اصلاح نباتات، دانشکده کشاورزی دانشگاه شاهرود، شاهرود، ایران

چکیده

تأثیر مثبت پرتودهی بذر با امواج التراسونیک بر رشد گیاه­چه اخیراٌ مورد توجه پژوهشگران قرار گرفته است. بیشتر آزمایش­ها در این مورد، به جوانه­زنی و استقرار اولیه گیاه­چه معطوف شده است. هدف از این تحقیق، بررسی واکنش گیاه بالغ ذرت به این امواج تحت شرایط تنش خشکی بود. یک آزمایش مزرعه­ای به­صورت فاکتوریل در قالب طرح بلوک­های کامل تصادفی با سه تکرار در مزرعه تحقیقاتی دانشگاه شاهرود در سال 1393 اجرا شد که تیمارها شامل سه سطح تنش خشکی (شاهد، قطع آبیاری از آغاز مرحله گلدهی و قطع آبیاری از مرحله خمیری­شدن دانه) و پنج زمان پرتودهی بذر با امواج التراسونیک (شاهد، 2، 4، 6 و 8 دقیقه) بودند. نتایج نشان داد که بر خلاف آثار اصلی فاکتورها که بر بیشتر صفات مورد مطالعه (به غیر از اثر امواج بر وزن خشک ساقه و برگ) معنی­دار بود، برهمکنش خشکی و پرتودهی تنها بر دو صفت ارتفاع بوته و قطر ساقه معنی­دار شد. این نشان می­دهد که با تغییر شدت تنش خشکی، تأثیر پرتودهی بر بیشتر صفات مورد مطالعه دستخوش تغییر نمی­شود. پرتودهی بذر به مدت شش دقیقه توانست میانگین این صفات را به­ترتیب 8، 10 و 12 درصد نسبت به شاهد افزایش دهد. به­طور کلی، نتایج این تحقیق نشان داد که پرتودهی بذر ذرت با امواج اولتراسونیک تحت هر دو شرایط تنش و بدون تنش خشکی، باعث قوی­تر شدن گیاه ­شد، به­ویژه تحت شرایط تنش خشکی که پرتودهی توانست اثر نامطلوب تنش خشکی را بر گیاه کاهش دهد. 

کلیدواژه‌ها


عنوان مقاله [English]

Effect of ultrasound and drought stress on some traits of corn

نویسندگان [English]

  • Maryam Saleminasab 1
  • Manouchehr Gholipoor 2
  • Hassan Makarian 2
  • Hassan Aryani Mohammadi 2
1 M. Sc. Student, Dept. of Agronomy and Plant Breeding, Faculty of Agriculture, Shahrood University, Shahrood, Iran
2 Assoc. Prof., Dept. of Agronomy and Plant Breeding, Faculty of Agriculture, Shahrood University, Shahrood, Iran
چکیده [English]

The positive effect of irradiation of seeds with ultrasonic waves on seedling growth has recently been considered by researchers. However, most experiments in this regard, have been focused on germination and early establishment of seedlings. The objective of this research was to investigate the response of corn plants to this waves under drought stress conditions. A filed experiment was conducted as factorial based on randomized complete block design with three replications at research field of Shahrood University, Shahrood, Iran, in 2014. The treatments were three levels of drought stress (control, irrigation interruption from flowering stage and irrigation interruption from grain dough stage) and five irradiation times (control, 2, 4, 6 and 8 minutes). The results indicated that unlike the main effects of factors that had significant effect on the most traits studied (except the effect of ultrasonic waves on stem and leaf dry weight), the interaction effect of drought and irradiation was significant on plant stem diameter. This shows that irradiation effect on the most traits studied does not change with thev change in drought stress intensity. Irradiation of seeds with six minutes could increase the average of these traits by 8, 10 and 12%, respectively. In total, irradiation of corn seeds with the ultrasonic waves under both stress and non-stress conditions was resulted to produce the stronger plants, especially under drought stress conditions where irradiation could decrease the unfavorable effect of drought stress.

کلیدواژه‌ها [English]

  • Ear diameter
  • Stem growth
  • Irradiation
  • Irrigation interruption
Abkhazar, H. R. and Ghahraman, B. 2003. Determination of sensitivity to water stress at different growth stages of winter wheat in Mashhad weather conditions. Crop Research Journal 5: 13-18. (In Persian with English Abstract).##Al-Kaisi, M. M. and Xinhua, Y. 2003. Effect of nitrogen rate, irrigation rate and plant population on corn yield and water use efficiency. Agronomy Journal 95: 1475- 1482.##Ashrafe, M. and Foolda, M. R. 2006. Pre-sowing seed treatment: A shotgun approach to improve germination, plant growth and crop yield under saline and non-saline conditions. Advanced Agronomy 88: 223-271.##Awad, T. S., Moharram, H. A., Shaltout, O. E., Asker, D. and Youssef, M. M. 2012. Applications of ultrasound in analysis, processing and quality control of food: A review. Food Research International 48: 410-427.##Daneshmand, A., Shirani-Rad, A. M. and Ardekani, M. R.  2006. Evaluation of tolerance to water stress in spring oil seed rape genotypes. Agricultural Research Journal of Islamic Azad University 5: 12-120. (In Persian with English Abstract).##Ebadi, S., Gholipoor, M. and Gholami, A. 2013. Effect of ultrasound and nitroxin biological fertilizer on growth, yield and yield components of cowpea (Vigna sinensis L.). Proceedings of 2nd National Symposium of Sustainable Development of Agriculture and Healthy Environment. Aug. 27-28, Hamedan, Iran. (In Persian).##Emam, Y. and Ranjbar, G. H. 2001. The effect of plant density and water stress during vegetative phase on grain yield components and water use efficiency of maize. Iranian Journal of Crop Science 3: 51-63. (In Persian with English Abstract).##Emam, Y. and Seghateleslami, M. J. 2005. Crop yield, physiology and processing. Shiraz University Press. (In Persian).##Khahjehpoor, M. R. 2004. Industrial plants. Jahad-e-Daneshgahi Press, Isfahan University of Technology, Iafahan, Iran. (In Persian).##Marghaeezadeh, G., Gharineh, M., Fathi, G., Abdali, A. and Farbod, M. 2001. Effects of ultrasound waves and magnetic field on growth and yield of Curum copticum in field conditions. Agronomy Journal (Pajouhesh-Va-Sazandegi) 104: 142-151. (In Persian with English Abstract).##Maskoke, A. M. and Mortazavi, A. 2007. Comparing ultrasound with alkali in time for drying grapes and raisin production. Iranian Journal of Nutrition Science and Food Technology 12: 48-57. (In Persian with English Abstract).##Molazem-Hoeeseini, H. 2014. Interactive effects of ultrasound and drought on chickpea. M. Sc. Dissertation, Shahrood University of Technology, Shahrood, Iran. (In Parsian).##Neilson, D. C. and Nelson, N. O. 1998. Black bean sensitivity to water stress at various growth stages. Crop Science 28: 422-427.##Rabbani, C. and Emami, A. 2011. Grain yield response of corn hybrids to drought stress. Production and Processing of Agricultural and Horticultural Products 6: 1-12. (In Persian with English Abstract).##Rajabian, S., Gholipoor, M. and Abasdokht, H. 2012. Effect of ultrasound and Pseudomonas bacterium on growth and yield of corn. M. Sc. Dissertation, Shahrood University of Technology, Shahrood, Iran. (In Parsian).##Risca, I. M., Fartais, L. and Stiuca, P. 2007. Ultrasound effects contributions on the Norway spruce seeds germination (Picea abies L. (Karsten)). Genetics and Biological Molecules 3:87-88.##Saleminasab, M., Gholipoor, M., Makarian, H. and Ariani-Mohammadi, H. 2015. Effect of ultrasound, priming and temperature on germination of corn.Proceedings of 1st National Conference on Novel Findings in Bioscience and Agriculture, May 21-22, Zabol University, Zabol, Iran. (In Persian).##Sasani, S., Jahansooz, M. R. and Ahmadi, A. 2014. The effects of deficit irrigation on water use efficiency, yield and quality of forage pearl millet.Proceedings of 13th International Crop Science Congress, Sept. 4-7, Karaj, Iran.  (In Persian).##Sharifi, A. and Ayvaz, M. 2011. Application of ultrasound in food processing as non-destructive method. Proceedings of 20th National Congress of Food Sience and Technology, Aug. 17-19, Tehran, Iran. (In Persian).##Soltani, A. and Galeshi, S. 2002. Importance of rapid canopy closure for wheat production in a temperate sub-humid environment: experimentation and simulation. Field Crops Research 77: 17-30.##Sorkhy, L. F. 2009. Evaluating the effect of ultrasound waves and magnetic field on seeds germination in marygold (Calendula officinalis L.). Proceedings of 6thIranian Horticultural Science Congress, July 13-16, University of Guilan, Rasht, Iran. (In Persian).##Yadav, R. S., Gayadin, A. and Jaiswal, K. 2001. Morpho-physiological changes and variable yield of wheat genotypes under moisture stress conditions. Indian Journal of Plant Physiology 6: 390-394.##Yang, C. M., Fan, M. J. and Hsiang, W. M. 1993. Growth and yield responses of maize (Zea mays L.) to water deficit timing and strength. Journal of Agriculture Research of China 42: 173-186.##Yaldagard, M., Mortazavi, S. A. and Tabatabaie, F. 2008. Influence of ultrasonic on the germination of barley seed and its alpha-amylase. African Journal of Biotechnology 7: 2456-2471.