Paclobutrazol-Induced Biochemical Changes in Pomegranate (Punica granatum L.) cv. ‘Malas Saveh’ under Freezing Stress
- سال انتشار: 1393
- محل انتشار: مجله بین المللی علوم و فنون باغبانی، دوره: 1، شماره: 2
- کد COI اختصاصی: JR_IJHST-1-2_010
- زبان مقاله: انگلیسی
- تعداد مشاهده: 382
نویسندگان
Department of Horticultural Sciences, Faculty of Agriculture, Bu-Ali Sina University,Hamedan, Iran
Department of Horticultural Sciences, Faculty of Agriculture, Bu-Ali Sina University,Hamedan, Iran
Pomegranate Research Station, Saveh Agriculture Research Center. Saveh, Iran
Professor and Director of Pomology and Viticulture Program, University of Idaho, Parma Research and Extension Center, ۲۹۶۰۳ U of I Lane, Parma, ID ۸۳۶۶۰, USA
چکیده
Freezing injury is an important limiting factor in the production of pomegranate in Iran.The aim of the present study was to evaluate the effect of paclobutrazol (PBZ) on cold hardiness of pomegranate (Punica granatum L.) cv. ‘Malas Saveh’. Different concentrations of PBZ including 0 (control), 31, 62, 125 or 250 mg L–1 were sprayed on one-year-old plants in August and the electrolyte leakage of their stems was measured at three acclimation stages (November, January, and March). PBZ treatments, especially at 125 and 250 mg L–1 concentrations increased cold hardiness, and corresponding soluble carbohydrates and proline contents. The highest variation in freezing tolerance was observed between control and PBZ-treated plants in January, and the lowest found in November. Irrespective of PBZ treatment, correlations between cold hardiness and soluble carbohydrate concentrations were stronger, compared to proline. Soluble carbohydrates were higher in January, associated with deep dormancy, whereas the maximum proline content was detected in March, at deacclimation stage. Results suggest that PBZ application can reduce low temperature-induced dysfunction of cell membrane through increasing soluble carbohydrates and proline contentsکلیدواژه ها
electrolyte leakage, freezing injury, proline, soluble carbohydratesاطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.