Effects of cold storage on postharvest leaf and flower quality of potted Oriental-, Asiatic- and LA-hybrid lily cultivars |
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| Institution: | 1. Niigata Agricultural Research Institute, Horticultural Research Center, Mano, Seiro, Niigata, 957-0111, Japan;2. Faculty of Agriculture, Niigata University, 2-8050 Ikarashi, Niigata, 950-2181, Japan;3. Institute of Vegetable and Floriculture Science, NARO, Fujimoto, Tsukuba, 305-8519, Japan;4. Faculty of Agriculture, Tokyo University of Agriculture, Funako, Atsugi, 243-0034, Japan;1. Department of Chemistry, Payame Noor University (PNU), P. O. Box 19395-4697, Tehran, Iran;2. Department of Agriculture, Payame Noor University (PNU), P.O. Box 19395-4697, Tehran, Iran;1. Key Laboratory of Landscaping Agriculture, Ministry of Agriculture and Rural Affairs, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China;2. Jiangsu Graduate Workstation of Nanjing Agricultural University and Nanjing Oriole Island Modern Agricultural Development Co., Ltd., Nanjing, 210043, China;3. College of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China;1. Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou, 450009, China;2. Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China;3. The New Zealand Institute for Plant & Food Research Limited, Auckland, New Zealand;1. Landscape Engineering Institute of National Forestry Bureau, Southwest Forestry University, 650224, PR China;2. Department of Horticulture and Landscape Architecture, Oklahoma State University, 74075, USA |
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| Abstract: | The effects of cold storage of mature potted plants on postharvest leaf and flower quality were investigated in several cultivars of three major groups (Oriental, Asiatic and LA) of hybrid lilies (Lilium spp.). Mature plants were stored in darkness at 3 °C for 2 weeks before placing them in a postharvest evaluation room (22 °C) and were compared with plants moved directly to the evaluation room. The efficacy of GA4+7 plus benzyladenine (BA) treatments (applied just before cold storage) for preventing cold-induced postharvest disorders in each cultivar was also evaluated. In all cultivars, cold storage caused several adverse effects on postharvest quality, including accelerated leaf yellowing or browning, bud abortion and reduced flower or inflorescence longevity. Leaf abscission was observed only in Oriental-hybrids. Treatment with GA4+7 plus BA significantly reduced these disorders and improved the overall postharvest quality after cold storage. While different cultivars differed greatly in their sensitivity to cold storage, all the cultivars benefited from GA4+7 plus BA treatment. Experiments indicated that GA4+7 plus BA treatments could be applied as early as 2 weeks before the mature bud stage without compromising the positive effects. |
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