Effect of Some Physical Treatments to Overcome Zarin-giyah (Dracocephalum kotschyi Boiss.) Seed Dormancy

Research On Crop Ecophysiology

دوره 16، شماره 1، فروردین 2021، صفحه 22-28   

شناسه دیجیتال (DOI): 10.30486/roce.2021.702523

نویسندگان

MAEDEH BOHLOULI¹؛ HOSSEIN ALI ASADI - GHARNEH¹؛ ELHAM CHAVOSHI²؛ NAFISEH ZAMINDAR³

¹Department of Horticultural Science, Faculty of Agriculture, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran

²Department of Soil Science, Faculty of Agriculture, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran

³Department of Food Science and Technology, Faculty of Agriculture, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran

چکیده

Effect of Some Physical Treatments to Overcome Zarin-giyah (Dracocephalum kotschyi Boiss.) Seed Dormancy
 
Maedeh  Bohlouli¹, Hossein Ali Asadi - Gharneh^1*, Elham Chavoshi², Nafiseh Zamindar³

Department of Horticultural Science, Faculty of Agriculture, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
Department of Soil Science, Faculty of Agriculture, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
Department of Food Science and Technology, Faculty of Agriculture, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran

 
*Correspondence Author E-mail: [e-mail]
 
Received: 20 September 2020                                                                                Accepted:  18 November  2021
 
 
Abatract
 
Zarin-giyah (Dracocephalum kotschyi Bioss.) is a medicinal plant and an endemic species in Iran. It is grown and well adapted to high elevations. This plant can be found in some areas such as Tabriz, Yasuj, Mazandaran and Isfahan. Germination in Zarin-giyah seed is irregular and takes a long period of time. This study conducted in 2021-2022, and the potential of Zarin-giyah seed dormancy release was evaluated using eight different treatments which consisted of: scratching with sandpaper, 24 hours of running water + 12 weeks of cooling at 4˚C, 48 hours of running water + 12 weeks of cooling at 4˚C, 60 ˚C hot water for ten minutes, freezing the seeds for 48 hours at -18 ˚C, 24 hours of running water + 48 hours of freezing at -18 ˚C, 24 hours of running water + scratching and the control. The result showed that seedling germination index, root and shoot dry weight, shoot length, mean germination time and germination rate were significant at the 1% probability level. Also, these results showed that using 24 hours of running water and 12 weeks of cooling at 4˚C improved germination traits in Zarin-giyah. Reducing the duration of seed immersion in running water is suggested as a means of achieving better results.
 
 
 
 

کلیدواژه‌ها

Keywords: Germination rate؛ Medicinal plant؛ Dormancy-release treatments؛ Zarin-giyah

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Bohlouli.3 .pdf