Effects of temperature and light on seed germination of ephemeral plants in the Gurbantunggut Desert, China: implications for vegetation restoration

作     者：CHEN Yanfeng CAO Qiumei LI Dexin LIU Huiliang ZHANG Daoyuan 

作者机构：Department of Tourism ManagementSchool of Geography and TourismQufu Normal UniversityRizhao 276826China CAS Key Laboratory of Biogeography and Bioresource in Arid LandXinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqi 830011China University of Chinese Academy of SciencesBeijing 100049China Yili Botanical GardenXinjiang Institute of Ecology and GeographyChinese Academy of SciencesXinyuan 835800China Turpan Eremophytes Botanical GardenChinese Academy of SciencesTurpan 838008China 

出 版 物：《Journal of Arid Land》 (干旱区科学（英文版）)

年 卷 期：2019年第11卷第6期

页      面：916-927页

核心收录：

学科分类：0710[理学-生物学] 071001[理学-植物学] 07[理学] 

基　　金：funded by the Science and Technology Plan Project of Xinjiang Uygur Autonomous Region (2016B03040) the National Natural Science Foundation of China (31570529, 31660162, 31971428, 31770638) the Youth Innovation Promotion Association of Chinese Academy of Sciences (2018477) 

主　　题：dormancy sand dune seed germination percentage seed germination pattern sowing time 

摘      要：Seed germination is a key transitional stage in plant life cycle and is strongly regulated by temperature and ***, research on the effects of temperature and light on seed germination is extremely meaningful for vegetation restoration, especially in desert *** of 28 ephemeral plants collected from the Gurbantunggut Desert of China were incubated at different temperatures(5℃/1℃, 15℃/5℃, 20℃/5℃, 25℃/10℃ and 30℃/15℃) in 12-h light/12-h darkness or continuous darkness regimes, and the responses of seed germination to temperature and light and the germination speed were studied in *** showed that seed germination percentage of the 28 ephemeral plants significantly differed to temperature and *** classified the studied plants as the following groups based on their responses to temperature: 1 low temperature responsed plants, 12 moderate temperature responsed plants, 7 high temperature responsed plants, 4 non-responsed plants and 5 plants of no *** should be noted that Corispermum lehmannianum Bunge is sensitive to both moderate and high *** were 4 groups of plant in response to light, i.e., 7 light responsed plants, 10 dark responsed plants, 6 light non-responsed plants and 5 plants of no *** on seed germination speed of the 28 ephemeral plants, we divided them into 4 patterns of germination, i.e., very rapid, moderately rapid, moderate and *** variations of temperature, precipitation and sand dune types in the study area, we suggested that very rapid and moderately rapid germinated plants could be used to moving sand dunes in early spring during vegetation restoration, moderate germinated plants could be used to semi-fixed sand dunes in late autumn, and slow germinated plants could be used to sand plain in ***, seedling establishment and vegetation restoration would be improved by considering seed germination characteristics of these ephemeral plants in the Gurbantunggut Des