‌Methods for overcoming seed dormancy in jimsonweed (Datura stramonium L.)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 Assistant Professor, Sharhrekord University, Faculty of Agriculture, Department of Agronomy, Sharhrekord, Islamic Republic of Iran

2 Former Ph. D. Student of Crop Physiology, Department of Agronomy and Plant Breeding, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran

3 Assistant Professor, Department of Agronomy and Plant Breeding, Faculty of Agriculture, Yasouj University, Yasouj, Iran

4 Ph. D. Candidate, Plant Genetics and Breeding, University College of Agriculture & Natural Resources, University of Tehran, Karaj, Iran

5 M. Sc. Student of Weed Science, Department of Agronomy and Plant Breeding, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran

چکیده

This study aimed to examine dormancy-breaking of jimsonweed seeds. Seeds were collected from Hamedan. They were subjected to different treatments: (a) concentrated sulfuric acid for 1, 1.5, and 2 min; (b) hot water at 80°C and 90°C for 5 and 10 min; (c) mechanical scarification with sandpaper; (d) light exposure for 10, 20, and 30 days; and (e) fluctuating temperature (5–15°C). The highest germination (90%) was for seeds scarified with sandpaper, but it did not differ significantly from that of seeds scarified with sulfuric acid for 1.5 min. Hot water treatment increased germination percentage but it was lower than sandpaper and acid treatments. Superior treatment affected radicle and plumule length, vigor index, mean germination time, and seedling length. Lower α- and β-amylase activities were detected in dormant seeds, and these enzymes’ activity increased significantly in superior treatment. It seems that scarification by sandpaper or sulphuric acid for 1.5 min is a general requirement for breaking dormancy of jimsonweed seeds. So, they are recommended.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

‌Methods for overcoming seed dormancy in jimsonweed (Datura stramonium L.)

نویسندگان [English]

  • Ali Abbasi Surki 1
  • Hossein Reza Rouhi 2
  • Ali Moradi 3
  • Fathollah Zeinali 4
  • Javad Alimoradi 5
1 Assistant Professor, Sharhrekord University, Faculty of Agriculture, Department of Agronomy, Sharhrekord, Islamic Republic of Iran
2 Former Ph. D. Student of Crop Physiology, Department of Agronomy and Plant Breeding, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran
3 Assistant Professor, Department of Agronomy and Plant Breeding, Faculty of Agriculture, Yasouj University, Yasouj, Iran
4 Ph. D. Candidate, Plant Genetics and Breeding, University College of Agriculture & Natural Resources, University of Tehran, Karaj, Iran
5 M. Sc. Student of Weed Science, Department of Agronomy and Plant Breeding, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran
چکیده [English]

This study aimed to examine dormancy-breaking of jimsonweed seeds. Seeds were collected from Hamedan. They were subjected to different treatments: (a) concentrated sulfuric acid for 1, 1.5, and 2 min; (b) hot water at 80°C and 90°C for 5 and 10 min; (c) mechanical scarification with sandpaper; (d) light exposure for 10, 20, and 30 days; and (e) fluctuating temperature (5–15°C). The highest germination (90%) was for seeds scarified with sandpaper, but it did not differ significantly from that of seeds scarified with sulfuric acid for 1.5 min. Hot water treatment increased germination percentage but it was lower than sandpaper and acid treatments. Superior treatment affected radicle and plumule length, vigor index, mean germination time, and seedling length. Lower α- and β-amylase activities were detected in dormant seeds, and these enzymes’ activity increased significantly in superior treatment. It seems that scarification by sandpaper or sulphuric acid for 1.5 min is a general requirement for breaking dormancy of jimsonweed seeds. So, they are recommended.

کلیدواژه‌ها [English]

  • α-Amylase
  • β-amylase
  • germination
  • sandpaper

مراجع

  1. Aliero, B. L. (2004). Effects of sulfuric acid, mechanical scarification and wet heat treatments on germination of seeds of Parkia biglobosa. African journal of biotechnology, 3, 179-181.
  2. Alvarado, V. & Bradford, K. J. (2005). Hydrothermal time analysis of seed dormancy in true (botanical) potato seeds. Seed Science Research, 15, 77-88.
  3. Arana, M. V., de Miguel, L. C. & Sanchez, R. A. (2006). A phytochrome-dependent embryonic factor modulates gibberellin responses in the embryo and micropylar endosperm of Datura ferox seeds. Planta, 223, 847-857.
  4. Baskin, J. M. & Baskin, C. C. (2004). A classification system for seed dormancy. Seed Science Research, 14, 1-16.
  5. Biswas, P. K., Devi, A., Roy, P. K. & Paul, K. B. (1978). Enzyme activity in dormant and nondormant large crabgrass (Digitaria sanguinalis) seeds following hydration. Weed Science, 26, 90-93.
  6. Brown, N. A. S. & Bridglall, S. S. (1989).Preliminary studies of seed dormancy in Datura stramonium. South African Journal of Botany, 53(1), 107-109.
  7. Copeland, L. O. & McDonald, M. B. (2001). Principles of Seed Science and Technology. 4th edn. Kluwer Academic Publishers Press.
  8. Farashah, H. D., Afshari, R. T., Sharifzadeh, F. & Chavoshinasab, S. (2011). Germination improvement and alpha-Amylase and beta-1, 3-glucanase activity in dormant and non-dormant seeds of oregano (Origanum vulgare). Australian Journal of Crop Science, 5, 421-427.
  9. Farhoudi, R., Makkizadeh, M. T., Sharifzadeh, F., Kochakpor, M. & Rashidi, S. (2007). Study of dormancy-breaking of Madder seed (Rubia tinctorum). Seed Science and Technology, 35, 739-743.
  10. Jayasuriya, K. M., Baskin, J. M., Geneve, R. L. & Baskin, C. C. (2009). A proposed mechanism for physical dormancy break in seeds of Ipomoea lacunosa (Convolvulaceae). Annals of Botany, 103, 433-445.
  11. ISTA. (1996) International rules for seed testing. International Seed Testing Association. Seed Science and Technology.
  12. Kishorekumar, A., Abdul, J.C., Manivannan, P., Sankar, B., Sridharan, R. & Panneerselvam, R. (2007). Comparative effects of different triazole compounds on growth, photosynthetic pigments and carbohydrate metabolism of Solenostemon rotundifolius. Colloids and Surfaces B: Biointerfaces, 60, 207-212.
  13. Oudhia, P. & Tripathi, R.S. (1998). Allelopathic potential of Datura stramonium L. Crop Research, 16(1), 37-40.
  14. Morrison, D. A., McClay, K., Porter, C. & Rish, S. (1998). The role of the lens in controlling heat-induced breakdown of testa-imposed dormancy in native Australian legumes. Annals of Botany, 82, 35-40.
  15. Reisman-Beirman, O., Kigel, J. & Rubin, B. (1989). Short soaking in water inhibits germination of Datura ferox L. and D. stramonium L. seeds. Weed Research, 29(5),
    357-36.
  16. Rouhi, H. R., Aboutalebian, M. A., Saman, M., Mahmoudieh Champiri, R. & Karimi, F. (2013). Seed germination and dormancy breaking methods for pheasant’s eye (Adonis vernalis L.). International Journal of Agricultural Research and Review, 3, 172-15.
  17. Schwienbacher, E., Navarro-Cano, J. A., Neuner, G. & Erschbamer, B. (2011). Seed dormancy in alpine species. Flora, 206, 845-856.
  18. Schelin, M., Tigabu, M., Eriksson, I., Swadago, L. & Oden, P. C. (2003). Effect of scarification, gibberllic acid and dry heat treatments on the germination of Balanties Egyptian seed from the Sudanian savanna in Burkina Faso. Seed Science and Technology, 31, 605-617.
  19. Sepehri, A. & Rouhi, H. R. (2016). Enhancement of seed vigor performance in aged groundnut (Arachis hypogaea L.) seeds by sodium nitroprusside under drought stress. Philippine Agricultural Scientist, 99(4), 339-347.
  20. Sixtus, C. R., Hill, G. D. & Scoot, R. R. (2003). The effect of temperature and scarification method on Ulex europaeus seed germination. New Zealand Plant Protection, 56, 201-205.
  21. Tárrago, J. F. & Nicolás, G. (1976). Starch degradation in the cotyledons of germinating lentils. Plant Physiology, 58, 618-621.
  22. Veblen, K. E. (2012). Savanna glade hotspots: Plant community development and synergy with large herbivores. Journal of Arid Environment, 78, 119-127.
علوم گیاهان زراعی ایران
دوره 48، ویژه نامه
مهر 1396
صفحه 35-41

فایل ها

سابقه مقاله

  • تاریخ دریافت: 02 بهمن 1394
  • تاریخ بازنگری: 03 شهریور 1395
  • تاریخ پذیرش: 23 شهریور 1395
  • تاریخ انتشار: 01 مهر 1396

هم رسانی

ارجاع به این مقاله

آمار