Postharvest pigmentation in red Chinese sand pears (Pyrus pyrifolia Nakai) in response to optimum light and temperature |
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| Institution: | 1. Department of Horticulture, The State Agricultural Ministry Key Laboratory of Horticultural Plant Growth, Development & Quality Improvement, Zhejiang University, Hangzhou 310058, Zhejiang Province, China;2. College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi Province, China;1. Department of Horticulture, Oregon State University, Mid-Columbia Agricultural Research and Extension Center, 3005 Experiment Station Dr., Hood River, OR 97031, United States;2. National Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, Shandong 271018, PR China;1. Laboratory of Plant Physiology, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855 Votanikos, Athens, Greece;2. BIO Hellas Institute, Omorfokklisias 27 Marousi, Athens, Greece;3. Laboratory of Pomology, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, Votanikos Athens, Greece;4. Department of Agricultural Technology, School of Agricultural Technology and Food Technology and Nutrition, Technological Educational Institute of Peloponnese, Antikalamos, Kalamata, Greece;1. Fundo de defesa da citricultura (Fundecitrus), Av. Adhemar P. Barros, Araraquara, São Paulo, Brazil;2. Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones Científicas, Universidad Politécnica de Valencia, Ingeniero Fausto Elio s/n, Valencia, Spain;1. Faculty of Bioresources and Environmental Sciences, Ishikawa Prefectural University, 1-308 Suematsu, Nonoichi, Ishikawa 921-8836, Japan;2. Ishikawa Agriculture and Forestry Research Center, Agricultural Experiment Station, Sand Hill Place Agriculture Research Center, Kahoku 929-1126, Japan;1. College of Horticulture, Shenyang Agricultural University, 120 Dongling Road, Shenyang, 110866, China;2. Yanbian Academy of Agricutural Sciences, 359 Longyan Road, Longjing, 133400, China;3. College of Life Sciences, Hubei Engineering University, 272, Traffic Road, Xiaogan, Hubei, 432000, China;4. Institute of Carbon Materials Science, Shanxi Datong University, Datong Shanxi, 037009, China;5. Agricultural College of Yanbian University, 977 Gongyuan Road, Yanji, Jilin, 133002, China |
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| Abstract: | The development of red color in the peel of red Chinese sand pears (Pyrus pyrifolia Nakai) is influenced by temperature and light; however, the response patterns vary among different cultivars. In this study, we systematically investigated the influence of postharvest treatment with various temperatures (low, high, variant and constant) on detached mature fruit of red Chinese sand pear ‘Mantianhong’ and ‘Meirensu’. Fruit of red apple (Malus domestica Borkh.) ‘Royal Gala’ and red European pear (P. communis L.) ‘Cascade’ received the same treatments for comparison. Furthermore, the effects of light quality and irradiance level on ‘Mantianhong’ pears were evaluated at the optimum temperature for anthocyanin accumulation. Fruit firmness and concentrations of total soluble sugars and organic acids were measured to determine fruit quality. The effect of temperature on red Chinese sand pear fruit color was similar to that of apples, but not European pear. Moreover, low temperature more effectively induced red coloration in ‘Mantianhong’ and ‘Meirensu’ pears than high temperature; anthocyanin levels increased with increasing irradiance level from 0 to 532 μmol m?2 s?1, and UV-B and visible light synergistically improved the red color of the fruit. Therefore, a combination of low temperature and high intensity of UV-B/visible light could improve the postharvest coloration of red sand pear fruit. The results will contribute to an improved understanding of the mechanism responsible for the coloration of red Chinese sand pears and will aid development of new techniques to improve color in postharvest fruit. |
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| Keywords: | Red Chinese sand pear European pear Anthocyanin Coloration Temperature Light |
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