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تأثیر محلول‌پاشی برگی نیترات کلسیم و کلرید کلسیم بر خصوصیات آنتی‌اکسیدانی و کیفیت گیاه دارویی عناب (Ziziphus jujuba Mill.) | ||
| تحقیقات گیاهان دارویی و معطر ایران | ||
| مقاله 14، دوره 33، شماره 5 - شماره پیاپی 85، دی 1396، صفحه 871-881 اصل مقاله (208.99 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijmapr.2017.111043.2059 | ||
| نویسندگان | ||
| مهدی قسمتی1؛ فرید مرادی نژاد* 2؛ مهدی خیاط3 | ||
| 1دانش‌آموخته کارشناسی ارشد، گروه علوم و مهندسی باغبانی، دانشکده کشاورزی، دانشگاه بیرجند، بیرجند، ایران | ||
| 2دانشیار، گروه علوم و مهندسی باغبانی، دانشکده کشاورزی، دانشگاه بیرجند، بیرجند، ایران | ||
| 3استادیار، گروه علوم و مهندسی باغبانی، دانشکده کشاورزی، دانشگاه بیرجند، بیرجند، ایران | ||
| چکیده | ||
| عناب (Ziziphus jujuba Mill.) یکی از گیاهان دارویی ارزشمند است که به‌دلیل دارا بودن ویتامین‌ها، موسیلاژ، آنتی‌اکسیدان، آلکالوئید و ترکیب‌های فنولی کاربرد فراوانی در صنایع دارویی دارد. کلسیم یکی از مهمترین عناصر معدنی است که در تعیین کیفیت میوه دخالت دارد و همچنین نقش این عنصر در بهبود متابولیت‌های ثانویه در گیاهان به اثبات رسیده است. با وجود این اطلاعات اندکی در مورد کاربرد برگی این عنصر در گیاه عناب وجود دارد. از این‌رو در این مطالعه اثر محلول‌پاشی برگی نیترات کلسیم و کلرید کلسیم بر خصوصیات آنتی‌اکسیدانی و کیفی میوه عناب در قالب طرح بلوک کامل تصادفی اجرا گردید. تیمارها شامل شاهد (آب مقطر)، کلرید کلسیم (0.5% و 1%) و نیترات کلسیم (0.5% و 1%) بودند. محلول‌پاشی در دو مرحله، در زمان تقسیم سلولی میوه (20 روز بعد از اتمام گلدهی) و کامل شدن رشد سلولی میوه (40 روز بعد از اتمام گلدهی) انجام شد. نتایج نشان داد که محلول‌پاشی با نیترات کلسیم 0.5% باعث افزایش معنی‌دار مقدار اسیدیته میوه شد، همچنین تیمار کلرید کلسیم 0.5% مقدار آنتوسیانین میوه را نسبت به شاهد افزایش داد. بیشترین میزان آنتی‌اکسیدان، ویتامین ث و محتوی کلسیم میوه در تیمار کلرید کلسیم 1% حاصل شد. حداکثر مقادیر کلروفیل a، b و کل در برگ‌های درختان تیمار شده با نیترات کلسیم 1% مشاهده گردید. به‌طور کلی نتایج نشان داد که محلول‌پاشی برگی با نمک‌های کلسیم موجب بهبود خصوصیات آنتی‌اکسیدانی و کیفی میوه‌ها نسبت به شاهد می‌شود. | ||
| کلیدواژه‌ها | ||
| آنتوسیانین؛ آنتی‌اکسیدان؛ کلروفیل؛ کلسیم؛ ویتامین ث | ||
| عنوان مقاله [English] | ||
| Effects of foliar application of calcium nitrate and calcium chloride on antioxidant properties and quality of Ziziphus jujuba Mill. | ||
| نویسندگان [English] | ||
| M. Ghesmati1؛ F. Moradinezhad2؛ M. Khayayt3 | ||
| 1M.Sc. Graduated, Department of Horticultural Science, Faculty of Agriculture, University of Birjand, Birjand, Iran | ||
| 2Department of Horticultural Science, Faculty of Agriculture, University of Birjand, Birjand, Iran | ||
| 3Department of Horticultural Science, Faculty of Agriculture, University of Birjand, Birjand, Iran | ||
| چکیده [English] | ||
| Jujube (Ziziphus jujuba Mill.) is one of the invaluable medicinal plants, widely used in the pharmaceutical industry due to its vitamins, mucilage, antioxidants, alkaloids and phenolic compounds. Calcium, involved in determining the fruit quality, is one of the most important minerals and its role in the improvement of secondary metabolites in plants has been proved. Nevertheless, little information is available regarding the foliar application of this element on jujube plant. Hence, the current research was aimed to investigate the effects of foliar application of calcium nitrate or calcium chloride on antioxidant properties and quality attributes of jujube fruit. The study was carried out in a randomized complete block design. Treatments were included control (distilled water), calcium chloride (0.5 and 1%) and calcium nitrate (0.5 and 1%). The Foliar application was done in two stages; in fruit cell division stage (20 days after full bloom) and in fruit cell growth stage (40 days after full bloom). The results showed that foliar application of calcium nitrate (0.5%) significantly increased the titratable acidity of the fruit. Calcium chloride treatment (0.5%) also increased fruit anthocyanin content compared to the control. The highest antioxidant properties, vitamin C, and calcium content were obtained in calcium chloride (1%) treatment. The maximum values of chlorophyll a, b and total were observed in the leaves treated with calcium nitrate at a concentration of 1%. In general, the results showed that foliar application of calcium salts improved the quality and antioxidant properties of jujube fruits compared to the control. | ||
| کلیدواژه‌ها [English] | ||
| Anthocyanin, Antioxidant, chlorophyll, calcium, vitamin C | ||
| مراجع | ||
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