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Effect of Water Deficit on Grain Yield and Yield Components Ispaghula (Plantago ovata Forssk) | ||
| Journal of Medicinal plants and By-product | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 17 آبان 1399 اصل مقاله (625.91 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22092/jmpb.2020.352135.1269 | ||
| نویسندگان | ||
Amirnoushan Shojaei1؛ Parvin Salehi Shanjani  2؛ Reza Zazarghami3؛ Ali Ashraf Jafari 2؛ Ghorban Nurmohammadi1
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| 1Faculty of Agriculture Sciences and Food Industries, Islamic Azad University, Science and Research Branch, Tehran, Iran | ||
| 2Natural Resources Gene Bank, Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization, Tehran, Iran | ||
| 3Agricultural Biotechnology Research Institute, Agricultural Research, Education and Extension Organization, Shahid Fahmideh Blvd., Karaj, Iran | ||
| چکیده | ||
| Drought is the major factor limiting factor of plant growth and productivity in many regions of the world. To determine the response of different ecotypes of ispaghula (Plantago ovata) to drought stress, a field experiment was conducted at the Research Institute of Forests and Rangelands, Tehran, Iran in 2018. The experimental design was split plot based on a randomized complete block design (RCBD) with three replications. The main factor included drought stress at three levels (control (D1), drought stress after flowering stage with a supplemental irrigation in the filling stage (D2) and post-flowering drought stress (D3). The second factor contained eight ecotypes of Plantago ovate, including: Dehloran (3328), Alborz (3968), Markazi (14592), Dashtestan (21228), Hormozgan-1 (31536), Hormozgan-2 (31563), Ghaen (37496) and Sarbisheh (38917). The results showed significant effect of drought stress and ecotypes for all traits (p <0.01).The interaction between ecotypes and drought stress was not significant for yield and yield components. Ispaghula ecotypes showed similar responses to drought stress. The highest grain yield with average value of 720 kg ha-1 obtained in ecotype 3328 and it was considered as the best ecotype for drought stress conditions. Ispaghula grain yield decreased by an average 11.02% and 23.65% with drought stress D2 and D3 in comparison with control (D1), respectively. Also, there was a significant difference between D2 and D3, but grain yield of D3 was 11.26% lower than D2. Regardless of the drought stress level, Dehloran (3328) ecotype produced the highest grain and recommended for breeding improved varieties, due to Dehloran (3328) ecotype had a good yield under normal irrigation conditions and with Occurrence of stress, it had fewer yield than other ecotypes. | ||
| کلیدواژه‌ها | ||
| Drought stress؛ Medicinal plants؛ Ispaghula؛ Grain production | ||
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آمار تعداد مشاهده مقاله: 4 تعداد دریافت فایل اصل مقاله: 2 |
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