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اثر کیفیت نور بر ویژگیهای مورفوفیزیولوژیک قلمه سه رقم داوودی در مرحله ریشهزایی (Chrysanthemum×grandiflorum) در اتاقک رشد | ||
| علوم باغبانی ایران | ||
| دوره 54، شماره 3، مهر 1402، صفحه 439-455 اصل مقاله (1.43 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/ijhs.2023.348301.2064 | ||
| نویسندگان | ||
| عزیزاله خندان میرکوهی* 1؛ شیوا پاکزاد1؛ محسن کافی2 | ||
| 1گروه مهندسی علوم باغبانی و فضای سبز، دانشکدگان کشاورزی و منابع طبیعی، دانشکده کشاورزی، دانشگاه تهران، کرج، ایران | ||
| 2گروه مهندسی علوم باغبانی و فضای سبز، دانشکدگان کشاورزی و منابع طبیعی، دانشکده کشاورزی، دانشگاه تهران، کرج، ایران. | ||
| چکیده | ||
| در این پژوهش کارایی لامپ‌های الایدی به عنوان جایگزین دیگر نورهای تکمیلی در شرایط مختلف، از نظر مرحله رشد هر گیاه و هدف از کشت، مورد بررسی قرار گرفت. آزمایش به صورت فاکتوریل در قالب طرح پایه کاملا تصادفی اجرا شد؛ عامل اول، قلمه‌های انتهایی سه رقم مختلف داوودی با کد‌های (C1:440)، (C2:542) و (C3:567) و عامل دوم سطوح نوری L1، L2، L3، L4 به ترتیب بیانگر قرمز-آبی، قرمز، آبی و سفید بود. قلمه‌های تهیه شده درون گلدا‌ن‌های دارای پرلیت شکری کشت شدند و به اتاقک رشد انتقال یافتند. در این بررسی، ویژگی‌هایی از جمله سطح و تعداد برگ، ویژگیهای ریشه و ساقه، میزان کلروفیل a، b و کل، شاخص عملکرد کوانتوم فتوسنتزی (Fv/Fm)، شاخص عملکرد، مالون‌دی‌آلدهائید، پرولین، آنتوسیانین‌های برگ و کربوهیدرات‌های محلول، اندازه‌گیری شد. بر اساس نتایج، بیش‌ترین میزان محتوای کلروفیل کل گیاه در طیف ترکیبی قرمز-آبی مشاهده شد. بیش‌ترین میزان شاخص عملکرد کوانتوم فتوسنتزی (Fv/Fm) در طیف آبی، حداکثر میزان آنتوسیانین‌های برگ در رقم 440 در نور قرمز و کم‌ترین مقدار مالون دی‌آلدهائید در رقم 542 در نور سفید مشاهده شد. بیش‌ترین سطح برگ مربوط به رقم 567 تحت تیمار نور قرمز-آبی و بیش‌ترین تعداد برگ در رقم 440 و نور قرمز-آبی ثبت شد. بهترین ویژگیهای ریشه مربوط به رقم 440 و نور ترکیبی قرمز-آبی بود. بطور کلی، با در نظر گرفتن شاخص‌های فیزیولوژی و مورفولوژی، در بین نورهای الایدی استفاده شده برای ارقام مختلف، بهترین نور در شرایط اتاقک رشد ، نورهای قرمز-آبی و نور تک رنگ آبی، تشخیص داده شد. | ||
| کلیدواژه‌ها | ||
| آنتوسیانین؛ الایدی؛ کلروفیل؛ گیاهان زینتی؛ عملکرد کوانتومی فتوسنتزی | ||
| عنوان مقاله [English] | ||
| The Effect of Light Quality on the Morphophysiological Characteristics of Cuttings of Three Varieties of Chrysanthemum in the Rooting Stage (Chrysanthemum grandiflorum) in the Growth Chamber | ||
| نویسندگان [English] | ||
| Azizollah Khandan-Mirkohi1؛ Shiva Pakzad1؛ Mohsen Kafi2 | ||
| 1Department of Horticultural Science and Landscape Engineering, Faculty of Agriculture, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran | ||
| 2Department of Horticultural Science and Landscape Engineering, Faculty of Agriculture, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran | ||
| چکیده [English] | ||
| The effectiveness of LED lamps was evaluated as an alternative to other supplementary lights in different conditions in terms of the growth stage of each plant and the purpose of the cultivation. A factorial experiment was carried out based on completely randomized design. The first factor was the terminal cuttings of three different cultivars of chrysanthemum, given codes of (C1:440), (C2:542) and (C3:567) and the second factor was the light levels of L1, L2, L3 and L4 which represent red-blue, red, blue and white, respectively. Cuttings were planted in the pots filled with small sized perlite, then transferred to the growth chamber. Characteristics such as leaf surface and number, root and stem characteristics, chlorophyll a and b and total, photosynthetic quantum performance index (Fv/Fm), PIabs, malondialdehyde, proline, leaf anthocyanins and soluble carbohydrates were measured. Based on the results, the highest amount of total chlorophyll content was observed in the red-blue combined spectrum, the highest amount of photosynthetic quantum performance index (Fv/Fm) in C1 cultivar under the blue spectra, the maximum amount of leaf anthocyanins in C1 under red light and the lowest amount of malondialdehyde in C2 under the white light. Meanwhile, the maximum value of leaf area was related to C3 under red-blue light treatment and the maximum number of leaves to C1 under red-blue light. The best characteristics of the root were belonged to the C1 cultivar under combined red-blue light. As a result, in terms of physiological and morphological indicators, among the used LED lights, red-blue lights and monochromatic blue light were the best treatments in the growth chamber conditions. | ||
| کلیدواژه‌ها [English] | ||
| Anthocyanin, LED, Chlorophyll, Ornamental plants, Photosynthetic quantum function | ||
| مراجع | ||
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