بررسی واکنش جوانه زنی بذر پیاز (Allium cepa) به دما با آنالیز ترمال تایم و تعیین دماهای کاردینال با استفاده از توابع رگرسیونی مختلف

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد دانشگاه تهران

2 دانشجوی دکتری

3 عضو هیات علمی دانشگاه تهران

چکیده

این تحقیق به منظور کمی سازی واکنش سرعت جوانه‌زنی و درصد جوانه‌زنی بذر پیاز (Allium cepa) نسبت به دماهای مختلف انجام گرفت. بدین‌منظور، جوانه‌زنی این گیاه تحت تأثیر تیمارهای دمایی (5، 10، 15، 20، 25، 30 و 35 درجه سانتی گراد) در آزمایشگاه تحقیقات بذر پردیس کشاورزی و منابع طبیعی دانشگاه تهران در سال 1394 بررسی شد. نتایج نشان داد که با افزایش دما از 5 به 30 درجه سانتی‌گراد، سرعت جوانه‌زنی و درصد جوانهزنی افزایش و پس از آن کاهش یافت. با برازش چهار مدل رگرسونی غیر خطی شامل دوتکه‌ای، دندان‌مانند، بتا و بتای تغییر یافته، مدل‌های دندان‌مانند و بتای تغییر یافته به عنوان مدل برتر انتخاب که با استفاده از مدل دندان مانند دماهای پایه، مطلوب تحتانی و مطلوب فوقانی و سقف به ترتیب 3/0، 99/24، 33، 89/35 درجه سانتی‌گراد و با استفاده از مدل بتا دماهای پایه، مطلوب و سقف به ترتیب 2/0، 87/26 و 51/35 برآورد شد. برای پیش بینی زمان جوانه‌زنی در دماهای ثابت مختلف از مدل زمان-دمایی استفاده گردید که ضریب ثابت ترمال تایم برابر 43/3191 درجه سانتیگراد بر ساعت بود.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

The evaluation response of onion (Allium cepa) seed germination to temperature by Thermal-time analysis and determine cardinal temperatures by using nonlinear regression

نویسنده [English]

  • arash mamedi 1
1
2
3
چکیده [English]

This study was conducted to quantify germination response of onion (Allium cepa) to temperature. For this purpose, seeds were exposed to Various constant temperatures (5, 10, 15, 20, 25, 30, 35 and 40ºC) treatments in seed lab, the university of Tehran, in 2015. The effects of temperatures on rate and percentage of germination was significant. With temperature increasing from 5 to 30ºC, both germination percentage and rate increased, while it decreased with increasing temperature from 30 to 35ºC. Cardinal temperatures of seed germination were estimated by using four regression models including dent-like, segmented, beta modified and beta Models. The best model for estimating cardinal temperatures was dent-like and beta modified models that by used dent-like model The base, under optimal, upper optimal and ceiling temperatures were 0.3, 24.99, 33 and 35.89 °C, respectively, and following beta modified model, The base, optimal and ceiling temperature were 0.2, 26.87 and 35.51°C. For predicting time of germination at different constant temperatures used Thermal-time that constant coefficient of Thermal-time was 3191.43 (°Cd).

کلیدواژه‌ها [English]

  • dent-like model
  • beta modified model
  • cardinal temperatures
  • germination and Thermal-time

مراجع

  1. Alvarado, V. & Bradford, K.J. (2002). A hydrothermal time model explains the cardinal temperatures for seed germination. Plant Cell Environment, 25, 1061-1069.
  2. Boroumand Rezazadeh, Z. & Koocheki. A. (2006). Evaluation of cardinal temperature for three species of medicinal plants, Ajowan (Trachyspermum ammi), Fennel (Foeniculum vulgare) and Dill (Anethum graveolens). Biaban Desert Journal, 11(2), 11-16. (In Farsi)
  3. Brodford, K. J. (2002). Applications of hydrothermal time to quantifying and modeling seed germination and dormancy. Weed Science, 50, 248-260.
  4. Cheng, Z. & Bradford, K. J. (1999). Hydrothermal time analysis of tomato seed germination responses to priming treatments. Journal of Experimental Botany, 50(330), 89-99.
  5. Ellis, R.H., Covell., S., Roberts., E.H. & Summerfield, R.J. (1986). The influence of temperature on seed germination rate in grain legumes. II. Intraspecific variation in chickpea (Cicer arietinum L.) at constant temperatures. Journal of experimental botany, 37, 1503-1515.
  6. Ganjeali, A., Parsa, M. & Khatib, M. (2006). Quantifying seed germination response of Chickpea genotypes under temperature and drought stress regimes. Iranian Journal of Water, Soil and Plant in Agriculture, 8(1), 12-17. (In Farsi)
  7. Jame, Y.W. & Cutforth, H.W. (2004). Simulating the effects of temperature and seeding depth on germination and emergence of spring wheat. Agricultural and Forest Meteorology, 124(3), 207-218.
  8. Jami Al-Ahmadi, M. & Kafi, M. (2007). Cardinal temperatures for germination of Kochia scoparia (L.). Journal of Arid Environment, 68, 308–314.
  9. Jalilian, A., Mazaheri, D., Taval afshar, R., Rahimian, R., Abdollahian, H. & Gohari, J. (2004). Evaluation of basic temperature and germination trend  for  monogerm  sugar  beet  at  different temperature. Sugar Beet, 20(2), 97-112.
  10. Kebreab, E. & Murdoch, A. J. (1999). Modelling the effects of water stress and temperature on germination rate of (Orobanche aegyptiaca) seeds. Journal of Experimental Botany, 50(334), 655-664.‏
  11. Kheirkhah, M., Koocheki, A., Rezvani Moghadam, P. & Nasiri Mahallati, M. (2011). Determination cardinal temperature for perennial medicinal plant Kakooti germination (Ziziphora clinopodioides Lam.). Iranian Journal of water, soil and plant in Agriculture, 8(1), 18-25. (In farsi).
  12. Maguire J. D. (1962). Speed of germination-aid in selection and evaluation for seedling emergence and vigor. Crop Science, 2, 176-177.
  13. Martinz, M.C., Corzo, N. & M. VilIiamiel. (2007). Biological properties of onion and garlic. Trends in Food Science Technology, 18, 609-625.
  14. Mwale, S. S., Azam-Ali, S. N., Clark, J. A., Bradley, R. G. & Chatha, M. R. (1994). Effect of temperature on germination of sunflower. Seed Science and Technology, 22, 565–571.
  15. Naik L.B. & Srinivas K. (1992). Seed production of vegetable crops-onion-A Review. Agricultural Review, 13, 59-80.
  16. Piper, E. L., Boote, K. J., Jones, J. W. & Grimm, S. S. (1996). Comparison of two phenology models for predicting flowering and maturity date of soybean. Crop Science, 36, 1606–1614.
  17. Pourreza, J., & Bahrani, A. (2012). Estimating cardinal temperatures of milk thistle (Silybum marianum) seed germination. American-Eurasian Journal of Agricultural and Environmental Science, 12, 1485-1489.
  18. Ramin, A. A. (1997). The influence of temperature on germination of taree Irani (Allium ampeloprasumL.  spp. iranicum W.). Seed Science and Technology, 25, 419-426.
  19. Soltani, E., Soltani, A., Galeshi, S., Ghaderi-Far, F. & Zeinali, E. (2013). Seed germination modeling of wild mustard (Sinapis arvensis L.) as affected by temperature and water potential: hydrothermal time model. Journal of Plant Production, 20 (1), 1-16.
  20. Tabrizi, L., Nasiri Mahalati, M. & Kochaki, A. (2004). Investigation on the cardinal temperature for germination of Plantago ovate and Plantago psyllium. Iranian Journal of Field Crops Research, 2, 143-151. (in Farsi)
  21. Tolyat, M. A., Tavakkol Afshari, R., Jahansoz, M. R., Nadjafi, F. & Naghdibadi, H. A. (2014). Determination of cardinal germination temperatures of two ecotypes of Thymus daenensis subsp. daenensis. Seed Science and Technology, 42, 28-35. ‏
  22. Ueno, K. (2003). Effect of Temperature During of Immature Seed Germination. Seed Science and Technology, (31), 587-595.
  23. Windauer, L. B., Martinez, J., Rapoport, D., Wassner, D., & Benech-Arnold, R. (2012). Germination responses to temperature and water potential in Jatropha curcas seeds: a hydrotime model explains the difference between dormancy expression and dormancy induction at different incubation temperatures. Annals of botany, 109(1), 265-273.‏
  24. Yan, W. & Hunt, L. A. (1999). An Equation for modelling the temperature response of plants using only the cardinal temperatures. Annals of Botany, 84, 607-614.
  25. Yin, X., Krop, M. J., McLaren, G. & Visperas, R. M. (1995). A nonlinear model for crop development as a function of temperature. Agricultural and Forest Meteorology, 77, 1-16

فایل ها

سابقه مقاله

  • تاریخ دریافت: 23 مهر 1395
  • تاریخ بازنگری: 18 بهمن 1396
  • تاریخ پذیرش: 28 اسفند 1395
  • تاریخ انتشار: 01 اسفند 1396

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