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کاربرد مدل های رگرسیونی در تخمین دماهای کاردینال جوانه زنی بذر اکوتیپ های مختلف زیره سبز (Cuminum cyminum L.) | ||
| علوم و فناوری بذر ایران | ||
| مقاله 8، دوره 6، شماره 1 - شماره پیاپی 11، خرداد 1396، صفحه 79-88 اصل مقاله (727.08 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22034/ijsst.2017.113217 | ||
| نویسندگان | ||
| محترم حبیب زاده زرندی1؛ ایرج اله دادی2؛ حمیده خلج3؛ محمد رضا لبافی* 4 | ||
| 1گروه زراعت، پردیس ابوریحان،دانشگاه تهران، پاکدشت، ایران | ||
| 2هیات علمی، گروه زراعت و اصلاح نباتات پردیس ابوریحان، دانشگاه تهران، پاکدشت، ایران. | ||
| 3هیئت علمی، گروه کشاورزی، دانشگاه پیام نور، تهران، ایران. | ||
| 4مرکز تحقیقات گیاهان دارویی، پژوهشکده گیاهان دارویی جهاد دانشگاهی، کرج، ایران. | ||
| چکیده | ||
| تحقیق حاضر به منظور ارزیابی برخی مدل های رگرسیونی غیر خطی برای توصیف سرعت جوانه زنی و تعیین دماهای کاردینال بذر چهار اکوتیپ زیره سبز (Cuminum cyminum L.) نسبت به دما اجرا گردید. آزمایش به صورت طرح کاملاً تصادفی با چهار تکرار در آزمایشگاه زراعت، پردیس ابوریحان دانشگاه تهران، در سال 1390 انجام شد. در این آزمایش بذور چهار اکوتیپ زیره سبز (خراسان، جندق، کرمان و اصفهان) تحت تاثیر شش تیمار دمایی (0، 5 ، 15 ، 25، 35 و 45 درجه سانتی گراد) قرار گرفتند و سرعت جوانه زنی بذور محاسبه گردید. نتایج تجزیه واریانس نشان داد، که دما اثر معنی داری در سطح یک درصد بر سرعت جوانه زنی دارد. با توجه به اینکه کمترین مقدار AICc و بیشترین مقدار Adj R2 مربوط به مدل دو تکه ای بود نسبت به مدل های دیگر سرعت جوانه زنی نسبت به دما را در اکوتیپ های زیره سبز بهتر توصیف نمود. براین اساس دمای پایه، دمای مطلوب و دمای سقف برای اکوتیپ خراسان به ترتیب 0، 11.4 ، 25، در اکوتیپ کرمان به ترتیب 0، 11.5 ، 28.9، اکوتیپ جندق 0 ، 9.6 ، 27.1 و اکوتیپ اصفهان به ترتیب0، 10.1 ، 35.5 درجه سانتی گراد تخمین زده شد. با توجه به نتایج می توان برای کمی سازی واکنش سرعت جوانه زنی این اکوتیپ ها از مدل دو تکهای استفاده نمود. | ||
| کلیدواژه‌ها | ||
| زیره سبز؛ سرعت جوانه زنی؛ مدل های رگرسیونی غیر خطی؛ دماهای کاردینال | ||
| عنوان مقاله [English] | ||
| Application of nonlinear regression models for prediction of cardinal temperatures in seed germination of various cumin (Cuminum cyminum) ecotypes | ||
| نویسندگان [English] | ||
| M. Habibzadeh Zarandi1؛ I. Allahdadi2؛ H. Khalaj3؛ M.R. Labbafi4 | ||
| 1Department of Agronomy, Aburaihan College, University of Tehran, Pakdasht, Iran. | ||
| 2Assistant Professor,Department of Agronomy, Aburaihan College, University of Tehran, Pakdasht, Iran. | ||
| 3Assistant Professor, Agriculture Department, Payam Noor University, Tehran, Iran. | ||
| 4Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Karaj, Iran. | ||
| چکیده [English] | ||
| This study was done to evaluate different nonlinear regression models to describe the response of germination rate and to determinate the cardinal temperature of four ecotypes of Cuminum cyminum(Cumin) seeds. This experiment was arranged in the form of three-factor factorial completely randomized design with 4 replications at the Agronomy Laboratory (Aburaihan College, University of Tehran) in 2011.The seeds were treated with different temperatures (0, 5, 15, 25, 35 and 45 oc) and the germination rate were calculated. The result showed that the temperature had a significant effect on germination rate of all plants. The segmented model was superior compared to other models in ecotypes of cumin since the minimum amount of AICc and maximum value of Adj R2 were related to this model. Base (Tb), optimum (To) and ceiling (Tc) temperatures were predicted with appropriate models. Tb, To, and Tc for Khorasani ecotype were 0, 11.4, 25 °C; for Krmani ecotype were 0, 11.5, 28.9 °C, for Jandaghi ecotype were 3.1, 9.6, 27.1 °C and for Esfahan ecotype 0, 10.1, 35.5 °C, respectively. It was concluded that this model can be used to quantify response of cumin seed germination to temperature and to obtain the proper cardinal temperatures of germination. | ||
| کلیدواژه‌ها [English] | ||
| Cuminum cyminum, germination rate, nonlinear regression model, cardinal temperatures | ||
| مراجع | ||
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