اخبار و اعلانات

 آمار

تعداد نشریات285
تعداد نشریات سازمان83
تعداد شماره‌ها3,094
تعداد مقالات34,531
تعداد مشاهده مقاله49,377,747
تعداد دریافت فایل اصل مقاله79,826,806
Afshar Nezhad, Bahareh, Salehi Shanjani, Parvin, Ghotbi Ravandi, Ali Akbar, Dadmand, Mohammad. (1404). Determination of cardinal temperatures for seed germination in Thymus kotschyanus, T. daenensis, and T. lancifolius. سامانه مدیریت نشریات علمی, 14(6), 534-540. doi: 10.22034/jmpb.2025.367157.1780
Bahareh Afshar Nezhad; Parvin Salehi Shanjani; Ali Akbar Ghotbi Ravandi; Mohammad Dadmand. "Determination of cardinal temperatures for seed germination in Thymus kotschyanus, T. daenensis, and T. lancifolius". سامانه مدیریت نشریات علمی, 14, 6, 1404, 534-540. doi: 10.22034/jmpb.2025.367157.1780
Afshar Nezhad, Bahareh, Salehi Shanjani, Parvin, Ghotbi Ravandi, Ali Akbar, Dadmand, Mohammad. (1404). 'Determination of cardinal temperatures for seed germination in Thymus kotschyanus, T. daenensis, and T. lancifolius', سامانه مدیریت نشریات علمی, 14(6), pp. 534-540. doi: 10.22034/jmpb.2025.367157.1780
Afshar Nezhad, Bahareh, Salehi Shanjani, Parvin, Ghotbi Ravandi, Ali Akbar, Dadmand, Mohammad. Determination of cardinal temperatures for seed germination in Thymus kotschyanus, T. daenensis, and T. lancifolius. سامانه مدیریت نشریات علمی, 1404; 14(6): 534-540. doi: 10.22034/jmpb.2025.367157.1780

Determination of cardinal temperatures for seed germination in Thymus kotschyanus, T. daenensis, and T. lancifolius

Journal of Medicinal plants and By-products
مقاله 2، دوره 14، شماره 6، بهمن و اسفند 2025، صفحه 534-540    اصل مقاله (1.27 M)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22034/jmpb.2025.367157.1780
نویسندگان
Bahareh Afshar Nezhad1؛ Parvin Salehi Shanjani* 2؛ Ali Akbar Ghotbi Ravandi3؛ Mohammad Dadmand4
1Research Institute of Forests and Rangelands, Tehran, Iran
2Natural Resources Gene Bank, Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization, Tehran, Iran
3Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran
4Bank of Research Institute of Forests and Rangelands, Research Agricultural, Education and Extension Organization, Tehran, Iran
چکیده
To evaluate the germination characteristics and determine the cardinal germination temperatures of Thymus kotschyanus Boiss. & Hohen, T. daenensis Celak., and T. lancifolius Celak., a factorial experiment was conducted in 2023, at the Seed Technology Research Laboratory of the Natural Resources Gene Bank of Iran. This experiment, designed in a completely randomized format with three replications, aimed to evaluate the germination characteristics and determine the cardinal temperatures of germination of three thyme species: Thymus kotschyanus, Thymus daenensis, and T. lancifolius. The seeds were exposed to a range of temperatures from 5 to 40 °C, a crucial step in understanding their germination behavior. Three non-linear regression models, including dent-like, segmented, and beta, were employed to characterize the germination rate response of three thyme species across eight temperature levels. Statistical indices such as root mean squared error (RMSE) and coefficient of determination (R²) were utilized to compare the models. Results from this experiment demonstrated that the studied thyme species exhibited similar germination peaks due to similar initial growth rates. Based on the results, the dent-like model provided the best fit for T. lancifolius with a basic temperature of 7.58 °C, a lower optimum temperature of 15.10 °C, an upper optimum temperature of 15.65 °C, and a ceiling temperature of 36.19 °C, with R² and RMSE values of 0.97 and 0.15, respectively. For T. kotschyanus, the dent-like model with a basic temperature of 5 °C, lower optimum temperature of 17.47 °C, upper optimum temperature of 19.73 °C, and a ceiling temperature of 34.24 °C, and R² and RMSE values of 0.92 and 0.08, respectively, also showed a good fit. However, for T. daenensis, the segmented model with an essential temperature of 6 °C, optimum temperature of 20 °C, and ceiling temperature of 36 °C, and R² and RMSE values of 0.99 and 0.06, respectively, provided the most reliable fit. Conclusively, the germination temperature range for all three thyme species was 10 to 35 °C, with an optimal germination temperature of 15 to 20 °C. These results emphasized the high adaptability and promising cultivation potential of the three thyme species in temperate natural resource areas, offering a significant implication for future agricultural practices.
کلیدواژه‌ها
Basic temperature؛ Ceiling temperature؛ Optimal temperature؛ Thyme
مراجع
  1. Stahl-Biskup E., Saez F. Thyme—The Genus Thymus. CRC Press, Boca Raton. 2002.
  2. Jalali M., Vahidinia A. Medicinal and Industrial Applications of Thyme (Thymus spp.). 2020.
  3. Ueno K. Effect of temperature during immature seed germination. Seed Science and Technology. 2003;31:587-595.
  4. Jami Al-Ahmadi M., Kafi M. Cardinal temperatures for germination of Kochia scoparia L. Journal of Arid Environments. 2007;68:308-314.
  5. Mwale S.S., Azam-Ali S.N., Clark J.A., Bradley R.G., Chataha M.R. Effect of temperature on germination of sunflower (Helianthus annuus L.). Seed Science and Technology. 1994;22:565-571.
  6. Jalilian A., Mazaheri D., Taval Afshar R., Rahimian R., Abdollahian H., Gohari J. Evaluation of basic temperature and germination trend for monogerm sugar beet at different temperatures. Sugar Beet. 2004;20(2):97-112.
  7. Bradford K.J. Application of hydrothermal time to quantifying and modeling seed germination and dormancy. Weed Science. 2002;50:248-260.
  8. Alvarado V., Bradford K.J. A hydrothermal time model explains the cardinal temperatures for seed germination. Plant, Cell & Environment. 2002;25:1061-1069.
  9. Pessotto M., Roberts T., Bertucci M., dos Santos C., Ross J., Savin M. Determining cardinal temperatures for eight cover crop species. Agrosystems, Geosciences & Environment. 2023;6:10.1002/agg2.20393.
  10. Iannucci A., Fonzo N.D., Martiniello P. Temperature requirements for seed germination in four annual clovers grown under two irrigation treatments. Seed Science and Technology. 2000;28:59-66.
  11. Najafi F. The effect of different irrigation regimes and density on the quality and quantity of the medicinal plant esforza (Plantago ovata Forsk). MSc Thesis, Faculty of Agriculture, Ferdowsi University of Mashhad. 2001. (In Persian)
  12. Bannayan M., Nadjafi F., Rastgoo M., Tabrizi L. Germination properties of some wild medicinal plants from Iran. Journal of Seed Technology. 2006;28:80-86.
  13. Tabrizi B., Walleigh R. Defining next-generation products: An inside look. Harvard Business Review. 1997;75(6):116-125. (In Persian)
  14. Adam N.R., Dierig D.A., Coffelt T.A., Wintermeyer M.J. Cardinal temperatures for germination and early growth of two Lesquerella species. Industrial Crops and Products. 2007;25:24-33.
  15. Tabrizi L., Kochki A.R., Nasiri Mahalati M. Evaluation of the cardinal temperatures of germination of two species of Plantago. Iranian Agricultural Research Journal. 2013;2(2):143-150. (In Persian)
  16. Taher Abadi Sh., Goldani M., Taher Abadi Sh., Fazeli Kakhki F. Determination of cardinal temperatures in the seeds of Henbane, Aconite and Hemp. Journal of Plant Protection (Agricultural Science and Industry). 2014;29(1):16-22.
  17. Mamedi A., Salehi Shanjani P., Divargar F. Response of Festuca arundinacea seed germination to temperatures, water potentials, and priming treatments using hydro- and thermal-time models. Physiology and Molecular Biology of Plants. 2022;28:1545-1558.
  18. Golmohammadzadeh S., Zaefarian F., Rezvani M., Chauhan B.S. Quantifying cardinal temperatures and thermal time for seed germination of Papaver dubium and P. rhoeas. Plant Ecology and Diversity. 2022;15:67-76.
  19. Boroumand Rezazadeh Z., Koocheki A. Evaluation of cardinal temperature for three species of medicinal plants, Ajowan (Trachyspermum ammi), Fennel (Foeniculum vulgare), and Dill (Anethum graveolens). Biaban (Desert Journal). 2006;11(2):11-16. (In Farsi)
  20. Soltani A., Maddah V. Simple, applied programs for education and research in agronomy. Shahid Beheshti University Press. 2010. (In Persian)
  21. Jame Y.W., Cutforth H.W. Simulating the effects of temperature and seeding depth on germination and emergence of spring wheat. Agricultural and Forest Meteorology. 2004;124(3):207-218.
  22. Tolyat M.A., Afshari R.T., Jahansoz M.R., Nadjafi F., Naghdibadi H.A. Determination of cardinal germination temperatures of two ecotypes of Thymus daenensis subsp. daenensis. Seed Science and Technology. 2014;42:28-35.
  23. Ganjeali A., Parsa M., Amiri-Deh-Ahmadi S.R. Determination of cardinal temperatures and thermal time requirement during germination and emergence of chickpea genotypes (Cicer arietinum L.). Iranian Journal of Pulses Research. 2011;2(2):97-108. (In Persian)
  24. Demir I., Ermis S., Mıs S. Estimation of Seed Longevity in Onion Seed Lots by a Vigor Test of Radicle Emergence. Horticulturae. 2022;8(11):1063.
  25. Ellis R.H., Roberts E.H. The quantification of ageing and survival in orthodox seeds. Seed Science and Technology. 1981;9:373-409.
  26. Agrawal R.L. Seed Technology. Oxford IBH Publishing, New Delhi. 2004.
  27. Kamkar B., Ahmadi M., Mahdavi-Damghani A., Villalobos F.J. Quantification of the cardinal temperatures and thermal time requirement of opium poppy (Papaver somniferum L.) seeds to germinate using nonlinear regression models. Industrial Crops and Products. 2012;35:192-198.
  28. Fakhrrad S.F., Ghanbari A., Rastgoo M. Estimation of Cardinal Temperatures of Carthamus oxycantha Germination Using Different Regression Models. Journal of Plant Protection. 2019;32:569-578.
  29. Copeland L.O., McDonald M.B. Principles of Seed Science and Technology. Chapman and Hall, USA. 1995.
  30. Ramin A.A. The influence of temperature on germination of taree Irani (Allium ampeloprasum L. spp. iranicum W.). Seed Science and Technology. 1997;25:419-426.
  31. Hashemi A., Baruti S.H., Tavakol Afshari R. Determining the cardinal temperatures of Marguerite seed (Chrysanthemum maximum Ramond). Iranian Journal of Seed Science and Technology. 2017;5:77-84. (In Persian)
  32. Hashemi A., Tavakkol Afshari R., Tabrizi L. Investigation of germination properties and important temperatures of Plantago ovate seed. Journal of Iranian Agricultural Plant Science. 2016;47(1):1-7. (In Persian)
  33. Hashemi A., Sharif Zadeh F., Maali Amiri R., Tavakkol Afshari R. Evaluation of germination of safflower seed (Carthamus tinctorius L.) Faraman cultivar, under water deficit stress and determination of cardinal germination temperatures. Iranian Journal of Seed Science and Technology. 2020;9:73-.
  34. Trudgill D.L., Squire G.R., Thompson K. A thermal time basis for comparing the germination requirements of some British herbaceous plants. New Phytologist. 2000;145(1):107-114.
  35. Thygerson T., Harris J.M., Smith B.N., Hansen L.D., Pendleton R.L., Booth D.T. Metabolic response to temperature for six populations of winter fat (Eurotia lanata). Thermochimica Acta. 2002;394(1-2):211-217.
  36. Hanson C.V., Oelke E.A., Putnam D.H., Oplinger E.S. Psyllium. Alternative Field Crops Manual. Horticulture, Purdue University, Indiana. 1992.
  37. Amiri Monfared V., Hashemi A., Mamedi A., Tavakkol Afshari R. Evaluation of germination characteristics and determination of cardinal temperatures of poppy (Papaver somniferum) seed. Iranian Journal of Seed Science and Technology. 2018;6(2):229-239.
  38. Bewley J.D., Black M. Seeds: Physiology of Development and Germination. Plenum Press, New York, USA. 1994.
آمار
تعداد مشاهده مقاله: 273
تعداد دریافت فایل اصل مقاله: 185


counter
سامانه مدیریت نشریات علمی. طراحی و پیاده سازی از سیناوب