| تعداد نشریات | 286 |
| تعداد نشریات سازمان | 84 |
| تعداد شماره‌ها | 2,873 |
| تعداد مقالات | 32,555 |
| تعداد مشاهده مقاله | 42,418,886 |
| تعداد دریافت فایل اصل مقاله | 19,194,492 |
اثر تیمارهای مختلف بر شکست خواب و تحریک جوانه زنی بذر زرین گیاه (Dracocephalum kotschyi Boiss) | ||
| تحقیقات مرتع و بیابان ایران | ||
| مقاله 11، دوره 26، شماره 4، دی 1398، صفحه 918-931 اصل مقاله (316.76 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijrdr.2019.120683 | ||
| نویسندگان | ||
| مهرناز حاتمی* 1؛ محمدرضا صمدی2؛ پریسا خانی زاده2 | ||
| 1استادیارگروه گیاهان دارویی، دانشکده کشاورزی و منابع طبیعی، دانشگاه اراک، اراک، ایران | ||
| 2دانش آموخته کارشناسی ارشد گیاهان دارویی، دانشکده کشاورزی و منابع طبیعی، دانشگاه اراک، اراک، ایران | ||
| چکیده | ||
| بذر اکثر گیاهان دارویی در شرایط طبیعی دارای خواب میباشند، بنابراین شناخت عوامل موثر بر خواب بذر و ایجاد شرایط بهینه برای جوانهزنی آنها برای کشت گسترده گیاهان دارویی لازم میباشد. زرین گیاه (بادرنجبویه دنایی) انحصاری ایران است و گیاهی مهم (در حال انقراض) از خانواده نعناعیان است. این تحقیق به منظور یافتن موثرترین تیمار جهت شکستن خواب بذر زرین گیاه که از مشکلات عمده زراعت آن در سطح وسیع و یا احیا در عرصههای طبیعی آن است صورت گرفت. تیمارهای آزمایش شامل خراش دهی با سمباده، اسید سولفوریک 95% (در دو زمان 3 و 6 دقیقه و تلفیقی از این دو تیمار)، اسید جیبرلیک (125، 250و 500 میکروگرم بر میلی لیتر)، نیتراتپتاسیم (2/0 و 4/0 درصد در 2 بازه زمانی) و همچنین سرمادهی مرطوب (در دمای 5 درجه سانتیگراد به مدت 24، 48و 72 ساعت) در مقایسه با شاهد (آبجاری در دو بازده زمانی 24 و 48 ساعت) انجام شد. آزمایش در قالب یک طرح کاملأ تصادفی اجرا گردید. نتایج بدست آمده نشان داد که در بین تیمارها استفاده از خراشدهی با سمباده و استفاده از اسید سولفوریک بیشترین اختلاف معنیداری در سطح یک درصد بر درصد جوانهزنی، سرعت جوانهزنی، شاخص ویگور، وزن تر و خشک ساقه و وزن تر و خشک ریشه را داشت. نتایج نشان داد که تیمار اسیدسولفوریک به مدت سه دقیقه باعث افزایش معنی داری در میزان جوانهزنی بذور نسبت به شاهد و سایر تیمار های دیگر گردید نتایج یافتهها نشانگر این است که وجود پوسته سخت و موسیلاژ زیاد به عنوان یک مانع فیزیکی است و از طریق ممانعت از گسترش رویان و یا از طریق ایجاد محدودیت در جذب آب و تبادلات گازی به عنوان عوامل محدود کننده جوانهزنی عمل میکند. بنابراین اعمال یکسری از تیمارها نظیر خراش دهی بذر و تیمارهای هورمونی نظیر جیبرلین جوانه زنی بذر زرین گیاه را بهبود می بخشد. | ||
| کلیدواژه‌ها | ||
| بادرنجبویه دنایی؛ خواب بذر؛ گیاه اندمیک؛ اسید سولفوریک | ||
| عنوان مقاله [English] | ||
| Effect of different treatments on breaking seed dormancy and stimulate germination in dragonhead (Dracocephalum kotschyi Boiss) | ||
| نویسندگان [English] | ||
| Mehrnaz Hatami1؛ Mohammadreza Samadi2؛ Parisa Khanizadeh2 | ||
| 1Assistant Professor, Department of Medicinal Plants, Faculty of Agriculture and Natural Resources, Arak University,Arak, Iran | ||
| 2Former M.Sc. Student of Medicinal Plants, Faculty of Agriculture and Natural Resources, Arak University, Arak, Iran | ||
| چکیده [English] | ||
| The most of medicinal plants seeds have dormancy under normal conditions, therefore, it is necessary to know the affective factors on seed dormancy and creation optimal conditions for their germination to extensive cultivation of medicinal plants. Dracocephalum kotschyi is an important Iranian endemic herbs which is extinting in the Lamiaceae family. This research was conducted in order to find the most effective treatment to break seed dormancy, which is one of the major problems cultivation on a large scale and rehabilitation in the natural areas. Experimental treatments including of scarification with sand paper, 95% sulfuric acid in 3 and 6 min and their combination, gibberellic acid (125, 250 and 500 μg ml-1), nitrate potassium (% 0.2 and %0.4 in 2 times) and also for moist chilling was at (5°C for 24, 48 and 72 hours) as compare to control (watering in 24 and 48 hours). The experiment was done base on the completely randomized design (CRD). The obtained results indicated that, there was a significant difference (p-value< 0.01) between in treatments of scarification with sand paper and 95% sulfuric acid on germination percentage, germination rate, vigor index, fresh and dry weight of the plumule and radicle. The results showed that sulphuric acid treatment in 3 minutes increased significantly seed germination as compare to control and other treatments. Obtained results represents that the presence of seed hard shell and high mucilage is a physical barrier and acts as a limiting factor in the germination of dragonhead by preventing the spread of embryos or by limiting the absorption of water and gas exchange. So, application of some treatments like scarification and hormonal treatment such as gibberellin could be improved the germination of dragonhead. | ||
| کلیدواژه‌ها [English] | ||
| Dracocephalum kotschyi, Seed dormancy, Endemic plant, Sulfuric acid | ||
| مراجع | ||
|
- Alvarez, R. and Grigera, S., 2005. Analysis of soil fertility and management effects on yields of wheat and corn in the rolling Pampa of Argentina. Journal of Journal of Agronomy and Crop Science results, 191: 321-329. - Aghaei, R., 2004. Influence of Some growth regulators on stimulation of germination of fertilizer (Ferula ovina). Iranian Journal of Biology, 18 (4): 395-350. - Agrawal, R., 1991. Seed technology. Pub. Co. PVT. LTD. New Delhi. India. - Balouchi, H. R. and Modarres Sanavi, S. A. M., 2006. Effect of gibberlic acid, prechilling, sulfuric acid and potassium nitrate on seed germination and dormancy of annual Medics, Pakistan Journal of Biological Sciences, 9(15): 2875-2880. - Bakhshi Khanyaki, G. H. R. and Fakhri, M., 2015. Effect of Chilling and chemical treatments on seed germination (Capparis spinosa L.). Journal of Cellular Molecular Biotechnology, 18 (5): 43-48. - Black, M., Corbineau, F., Grzesik, M., Guy, P. and Come, D., 1996. Carbohydrate metabolism in the developing and maturing wheat embryo in relation to its desiccation tolerance. – Journal of Experimental Botany., 295: 161-169. - Chang, Y. D., Lee, C. H., Song, J. S. and Hwang, J. K., 2009. Several factors affecting on seed germination of Dracocephalum argunen Fischer ex Link. – Korean Journal Plant Research, 22: 236-241. - Chakraborty, D., Bhattacharya, K., Bandyopadhyay, A. and Gupta, K., 2003. Studies on the germination behavior of Basilicum polystachyon-an ethnobotanically important medicinal plant. Journal of Medicinal and Aromatic Plants, 25: 58-62. - Farhadi, M., Sharifani, M., Heshmatollah, H. And Koohrkhi, A., 2006. Effect of seed cover and moist chilling on germination of pellets. Journal of Agricultural Sciences and Natural Resources of Gorgan, 13 (2): 49-44. - Ghasemi, P., Golparvar, M. and Naved, A., 2007. Effect of different treatments on breaking of sleep and stimulating seed germination of five species of medicinal plants in Chaharmahal va Bakhtiyari. Journal of Research and construction, 74 (20):185-192. - Ghaderi, A., Kamkar, B. and Soltani, A., 2008. Seed science and technology. Mashhad University Press International Seed Testing Association, 1979. The germination test. Journal of Seed Science and Technology, 4:23-28 - Gohari, A., Saeidnia, S., Matsuo, K., Uchiyama, N., Yagura, T. and Michiho, K., 2003. Flavonoid constituents of Dracocephalum kotschy growing in Iran and their trypanocidal activity. – Journal of Natural Medicines. 57: 250-252. - Golshani, S., Karamkhani, F., Monsef Esfehani, H. R. and Abdollahi, M., 2004. Antinociceptive effects of the essential oil of Dracocephalum kotschy in the mouse writhing test. – Journal of Pharmaceutical Sciense, 7: 76-79. - Jalali, A. and Jamzad, Z., 1999. Red data book of Iran. Research Institute of Forests and Rangelands Iran,Tehran, 748p. - Jankju-Borzelabad, M. and Tavakkoli, M., 2008. Investigating seed germination of 10 arid-land plant species. - Iranian journal of Rangeland and Desert Researc. 15(2): 215-226. - Jahaniani, F., Ebrahimi, S. A., Rahbar, R. N. and Mahmoudian, M., 2005. Xanthomicrol is the main cytotoxic component of Dracocephalum kotschyii and a potential anticancer agent. – Phytochem, 66: 1581-1592. - kochaki, A. and Sirmainea, G.H., 2000. Physiology of crops. Mashhad University Press. - Khan, J., Rauf, Z., Ali Rashid, H. and Khattack, M. S., 1999. Different stratification techniques effects on seed germination of Pistachio. Pakistan Journal of Biological Sciences, 2:1412-1414. - Keiffer, C. and Ungar, I., 1997. The effect of extended exposure tohypersaline conditions on the germination of five inland halophytespecies. American Journal of Botany,84: 104-111. - Mahmoodi Sourestani, M., 2008. The effect of different treatments on seed germination of lovage (Levisticum officinale KOCH). Agronomy Journal (Pajouhesh & Sazandegi) 101:34-39. - Mozaffarian, V., 1996. Culture of Plant Names of Iran. Contemporary Culture publication, 740 p. - Maki Zadeh Tafti, M., Farhoudi, R., Naghdi, badi, H. and Mahdi Zadeh, A., 2006. Iranian Journal of Medicinal and Aromatic Plants, 22(2): 105- 116. - Maguire, J. D., 1962. Speed of germination - aid in selection and evaluation for seedling emergence and vigour. Journal of Crop Sciense, 2:176-177. - Morgenson., G., 1999. Effects of cold strafication, warm-cold, stratification, and acid scarification on seed germination of three Crataegus species. Tree planters' Notes, 49 (3): 72-85. - Moravcova, l., pysek, P., Krinke, l., Pergl, J., Perglova, I. and Thompson, K., 2007. Seed germination, dispersal and seed bank in Heracleum mantegazzianum. CAB International, 74-91. - Moradian, z,. Omidi, H., Karimi, T., Azad Bakht, F. and Bazmakani, R., 2017. Evaluation of the effect of hormonal pre-treatment On indexes germination seedlings (Lallemantia iberica F and C.M.) Under drought stress. Journal of Seed Research. 2:21-29. - Nasiri, M., Madah Arefi, H. and Eisvan, H. R., 2005. Study of trend of seed germination and dormancy of some available species in natural resources gene bank. Iran Journal of Rangelands Forests Plant Breed Genet, 12(2): 163-182. - Nabaee, M., Roshandel, P. and Mohammadkhani, A. R., 2013. Effect of chemical treatments, pre-moist chilling, hot and tap water on seed dormancy breaking in Arctium lappa. Journal of Plant Research (Iranian Journal of Biology), 26 (2): 217-225. - Nabaee, M., Roshandel, P. and Mohammadkhani, A. R., 2011. Effective techniques to break seed dormancy and stimulate seed germination in Rheum ribes L. Iranian Journal of Medicinal and Aromatic Plants, 27(2): 212-223. - Najafi Pournavai, M. and Mirza, M., 2007. Iranian Journal of Medicinal and Aromatic Plants, 23(1): 128-133. - Orphanos, P.I., 1983. Germination of caper (Capparis spinosa L.) Seeds. Journal of Horticultural Science,58(2): 267-270. - Qu, X., Baskin, J. M., Wang, L. and Huang, Z., 2008. Effects of cold stratification, temperature, light and salinity on seed germination and radicle growth of the desert halophyte shrub, Kalidium caspicum (chenopodiaceae). Journal of Plant Growth Regulation, 54: 241-248. - Razeghi, F. and Tavakol-Afshari, R., 2010. Study of drought stress on acidic and basic phosphatases present in embryonic axis at early stage of germination of wheat. Agricultural science, 241(2): 385-393. - Rezaei Chineh, A., Tajbakhsh, M., Valizadegan, A., Banai Asl, f. and Mahdavi Kia, H., 2014. Investigation of effective methods in broken seed dipping (Hyoscyamus reticulatus L.). Iranian Journal of Field Crops Research, 12(2): 246-253. - Rajabiyan, T., Saboor, A. and Hassani, H., 2007. Effect of Gibberellic acid and Cold on seed germination of Ferula assa-foetida. Journal of Research in Iranian Medicinal and Aromatic Plants, 23(3): 404-391. - Rawat, B., Khanduri, S., Sharma, P. and Ch, M., 2008. Beneficial effects of cold-moist stratification on seed germination behaviors of Abies pindrow and Picea smithiana. Journal of Forestry Research, 19 (2): 125-130.
- Saeidnia, S., Gohari, A. R., Uchiyama, N., Ito, M., Honda, G. and Kiuchi, F., 2004. Two new monoterpene glycosides and trypanocidal terpenoids from Dracocephalum kotschyi. – Chem. and Pharmaceut. Journal of Bullt 52: 1249-1250. - Serdanya, G. H., 1996. Seed Technology. Mashhad University Press, 288 p. - Scott, S. J., Jones, R. A. and Williams, W. A., 1984. Review of data analysis method for seed germination. Journal of Crop Science, 24: 1192-1199. - Safaian, R. and Azarnivand, H., 2010. The effect of some treatments on seed dormancy breaking and germination of Prangos ferulacea (L.) Lindl. Iranian journal of Rangeland and Desert Research, 17(2): 331-339. - Tajbakhsh, M., 1996. Seed Certificate Recognition and Control. Tabriz Ahrar publication. Zargari, A., 1990. Medicinal plants. Volume Four Tehran University Press, 923 p | ||
|
آمار تعداد مشاهده مقاله: 1,103 تعداد دریافت فایل اصل مقاله: 469 |
||