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پاسخ صفات مورفوفیزیولوژیکی در چهار گونه بابونه در شرایط دیم و تنش خشکی در شرایط گلخانه | ||
| تحقیقات ژنتیک و اصلاح گیاهان مرتعی و جنگلی ایران | ||
| مقاله 5، دوره 28، شماره 1 - شماره پیاپی 55، شهریور 1399، صفحه 51-66 اصل مقاله (808.14 K) | ||
| نوع مقاله: مقاله علمی - پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijrfpbgr.2019.124781.1330 | ||
| نویسندگان | ||
| پروین صالحی* 1؛ لیلا رسول زاده2؛ لیلا فلاح حسینی2؛ معصومه رمضانی یگانه2؛ محمود امیرخانی2؛ محمد رضا پهلوانی2؛ سید اسمعیل سیدیان2؛ حمیده جوادی3 | ||
| 1دانشیار پژوهش، بخش تحقیقات بانک ژن منابع طبیعی ایران، مؤسسه تحقیقات جنگلها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران | ||
| 2پژوهشگر، بخش تحقیقات بانک ژن منابع طبیعی ایران، مؤسسه تحقیقات جنگلها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران | ||
| 3استادیار پژوهش، بخش تحقیقات بانک ژن منابع طبیعی، مؤسسه تحقیقات جنگلها و مراتع کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران | ||
| چکیده | ||
| تنش خشکی یکی از مهمترین عوامل محدودکننده حیات و رشد گیاهان در نواحی مختلف ایران است. در این پژوهش ویژگیهای مورفولوژی بوتههای حاصل از بذرهای چهار گونه بابونه چندساله Anthemis tinctoria، Matricaria recutita، Tripleurospermum sevanenseوTanacetum parthenium موجود در بانک ژن منابع طبیعی ایران در شرایط دیم مزرعه تحقیقاتی البرز کرج (مؤسسه تحقیقات جنگلها و مراتع کشور) ارزیابی شدند. نتایج نشان دادند که در شرایط دیم، گونه M. recutita نسبت به سه گونه بابونه دیگر بیشترین سطح پوشش، ارتفاع، تعداد گل و وزن خشک بوته را داشته و در مدت زمان کوتاهتری به گلدهی کامل رسید. در آزمایش گلخانه بهمنظور مطالعه سازوکارهای فیزیولوژیکی پاسخ به شرایط کمآبی، گیاهان تحت چهار تیمار خشکی شامل آبیاری کافی (شاهد)، تنش خشکی ملایم (75 درصد ظرفیت زراعی)، تنش خشکی متوسط (55 درصد ظرفیت زراعی) و تنش خشکی شدید (35 درصد ظرفیت زراعی) قرار گرفتند. تغییرات محلولهای محافظ اسمزی (پرولین و قندهای محلول)، محتوای آب نسبی (RWC)، آنزیمهای آنتیاکسیدانت (پراکسیداز و پلیفنلاکسیداز) و پیگمانهای گیاهان تحت تنش بررسی گردید. بررسی سازوکارهای فیزیولوژیکی پاسخ به شرایط کمآبی گونههای بابونه در شرایط گلخانه نشان داد که M. recutita نسبت به سه گونه بابونه دیگر به علت ظرفیت بالاتر تنظیم اسمزی تحمل بیشتری به تنش خشکی شدید داشته، در حالی که سه گونه A.tinctoriaT. sevanenseو T. parthenium تحمل خوبی به شرایط تنش متوسط نشان دادند. | ||
| کلیدواژهها | ||
| آنزیمهای آنتیاکسیدانت؛ بابونه؛ تنش خشکی؛ کلروفیل؛ مورفولوژی | ||
| عنوان مقاله [English] | ||
| Morpho-physiological responses of four chamomile species to rainfed conditions and drought stress under greenhouse conditions | ||
| نویسندگان [English] | ||
| Parveen Salehi Shanjani1؛ Leila Rasoulzadeh2؛ Leila Fallah Hoseini2؛ Mosoumeh Ramezani Yeganeh2؛ Mahmoud Amirkhani2؛ Mohammad Reza Pahlavani2؛ Seyed Esmaeil Seyedian2؛ Hamideh Javadi3 | ||
| 1Assoc. Prof, Natural Resources Gene Bank, Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization, Tehran, I.R. Iran | ||
| 2Researcher,, Natural Resources Gene Bank, Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization, Tehran, I.R. Iran. | ||
| 3Asist. Prof., Natural Resources Gene Bank, Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization, Tehran, I.R. Iran. | ||
| چکیده [English] | ||
| Drought stress is one of the most important factors limiting the survival and growth of plant in different parts of Iran. In this study, the morphological characteristics of four perennial chamomiles species, Anthemis tinctoria, Matricaria recutita, Tripleurospermum sevanense and Tanacetum parthenium, were evaluated in rainfed and greenhouse conditions in Alborz research field, Research Institute of Forests and Rangelands, Iran. The results showed that M. recutita had the highest plant crown surface, height, flower number,plant dry weight; and early flowering date in rainfed conditions compared to the other three species. In the greenhouse experiment in order to study the physiological mechanisms of response to water deficit, the four species were subjected to four drought treatments including well-watered (control), mild drought stress (75% of field capacity (FC)), moderate drought stress (55% of FC), and severe drought stress (35% of FC). Changes in compatible solutes (proline and soluble sugars), relative water content (RWC), antioxidant enzymes (peroxidase and polyphenol oxidase) and pigments of stress plants were investigated. The result of the physiological response of the chamomile species in greenhouse condition showed that M. recutita was the most tolerant species to severe drought stress conditions due to its the higher osmotic regulation capacity, while the other three species A. tinctoria, T. servanes and Tanacetum parthenium showed good tolerant to moderate stress conditions. | ||
| کلیدواژهها [English] | ||
| Antioxidant enzymes, chamomile, chlorophylls, drought stress, morphology | ||
| مراجع | ||
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