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تولید ارقام سنتتیک مقاوم به خشکی رازیانه و ارزیابی آنها در شرایط آبیاری معمول و تنش خشکی در مرحله پس از گلدهی | ||
| تحقیقات ژنتیک و اصلاح گیاهان مرتعی و جنگلی ایران | ||
| مقاله 3، دوره 24، شماره 1، اردیبهشت 1395، صفحه 29-41 اصل مقاله (241.52 K) | ||
| نوع مقاله: مقاله علمی - پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijrfpbgr.2016.106165 | ||
| نویسندگان | ||
| کیوان بهمنی1؛ علی ایزدی دربندی* 2؛ اعظم اکبری3 | ||
| 1دانشجوی دکتری، گروه علوم زراعی و اصلاح نباتات، پردیس ابوریحان، دانشگاه تهران، پاکدشت، ایران | ||
| 2نویسنده مسئول مکاتبات، دانشیار گروه علوم زراعی و اصلاح نباتات، پردیس ابوریحان، دانشگاه تهران، پاکدشت، ایران، پست الکترونیک: aizady@ut.ac.ir | ||
| 3دانش آموخته کارشناسی ارشد گروه علوم زراعی و اصلاح نباتات، پردیس ابوریحان، دانشگاه تهران، پاکدشت، ایران | ||
| چکیده | ||
| رازیانه از مهمترین گیاهان دارویی است که دانه و اسانس آن در صنایع دارویی، غذایی و آرایشی کاربرد فراوان دارد. در این پژوهش نحوه تولید دو رقم سنتتیک رازیانه زودرس و میانرس با ویژگی تحمل به خشکی بررسی و همچنین نتاج نسل اول آنها بههمراه چهار اکوتیپ والدی در دو آزمایش جداگانه در شرایط آبیاری معمول و تنش خشکی ارزیابی شدند. نتایج تجزیه واریانس نشان داد که از نظر کلیه صـفات مـورد بررسی اختلاف بسیار معنیداری بین ژنوتیپهای مورد مطالعه در هر دو شـرایط آبیاری معمول و تنش خشکی وجود داشت. مقایسه میانگین ژنوتیپهای مورد مطالعه نشان داد که در شرایط آبیاری معمول بیشـترین عملکـرد دانه متعلق به اکوتیپهای والدی فزوه و مشکین شهر و در شرایط تنش بیشترین عملکرد دانه متعلق به ارقام سنتتیک میانرس و زودرس بود. بررسی مقایسات مستقل بین ارقام سنتتیک و اکوتیپهای والدی در هر تیپ رشدی نشان داد در شرایط تنش خشکی ارقام سنتتیک نسبت به ژنوتیپهای والدی دارای میانگین عملکرد دانه و عملکرد اسانس بیشتری بودند. در نهایت میتوان گفت ایجاد ارقام سنتتیک بهعنوان یک روش اصلاحی برای ایجاد تحمل به خشکی در رازیانه قابل توصیه است. | ||
| کلیدواژهها | ||
| ارقام سنتتیک؛ تنش خشکی؛ رازیانه؛ عملکرد | ||
| عنوان مقاله [English] | ||
| Development of drought tolerant synthetic cultivars of fennel and their assessment under normal and drought conditions at stage after flowering | ||
| نویسندگان [English] | ||
| keivan bahmani1؛ ali izady-darbandy2؛ aazam akbari3 | ||
| چکیده [English] | ||
| Fennel (Foeniculum vulgare) is one of the most important medicinal plants with many usages in medical, food and cosmetic industries. Development method of two early and medium maturity synthetic cultivars of fennel with the aim of drought tolerance is discussed. The synthetic cultivars were assessed along with their elite parents at two separate environments, with normal irrigation and drought stress conditions. Results showed on the two environmental conditions, there were significant differences among the genotypes. Mean comparison of genotypes showed that in non-stress conditions, the most seed yield belonged to parental medium maturity genotypes of Meshkinshahr and Fozveh; and in drought stress conditions belonged to early and medium maturity synthetic cultivars. Independent mean comparison among the synthetic cultivars and the parents in each growth conditions showed that; in stress conditions according to the elite parents the synthetic cultivars had higher seed and essential oil yields. Finally, for enhancement of drought tolerance of fennel species, breeding method of synthetic cultivar is recommended, so that in environments with variable climate, especially water shortage, the mentioned cultivars can produce satisfactory yield. | ||
| کلیدواژهها [English] | ||
| Drought Stress, Fennel, synthetic cultivar, yield | ||
| مراجع | ||
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