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Journal of Arid Land  2019, Vol. 11 Issue (6): 916-927    DOI: 10.1007/s40333-019-0027-4
Orginal Article     
Effects of temperature and light on seed germination of ephemeral plants in the Gurbantunggut Desert, China: implications for vegetation restoration
CHEN Yanfeng1,2,3, CAO Qiumei2, LI Dexin2,3, LIU Huiliang2,4,5,*(), ZHANG Daoyuan2,5
1 Department of Tourism Management, School of Geography and Tourism, Qufu Normal University, Rizhao 276826, China
2 CAS Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
3 University of Chinese Academy of Sciences, Beijing 100049, China
4 Yili Botanical Garden, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Xinyuan 835800, China
5 Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan 838008, China
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Seed germination is a key transitional stage in plant life cycle and is strongly regulated by temperature and light. Therefore, research on the effects of temperature and light on seed germination is extremely meaningful for vegetation restoration, especially in desert ecosystems. Seeds of 28 ephemeral plants collected from the Gurbantunggut Desert of China were incubated at different temperatures (5°C/1°C, 15°C/5°C, 20°C/5°C, 25°C/10°C and 30°C/15°C) 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 2016. Results showed that seed germination percentage of the 28 ephemeral plants significantly differed to temperature and light. We 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 germination. It should be noted that Corispermum lehmannianum Bunge is sensitive to both moderate and high temperatures. There 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 germination. Based 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 slow. Combining 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 summer. Thus, seedling establishment and vegetation restoration would be improved by considering seed germination characteristics of these ephemeral plants in the Gurbantunggut Desert, China.

Key wordsdormancy      sand dune      seed germination percentage      seed germination pattern      sowing time     
Received: 27 December 2018      Published: 10 December 2019
Corresponding Authors: Huiliang LIU     E-mail:
Cite this article:

CHEN Yanfeng, CAO Qiumei, LI Dexin, LIU Huiliang, ZHANG Daoyuan. Effects of temperature and light on seed germination of ephemeral plants in the Gurbantunggut Desert, China: implications for vegetation restoration. Journal of Arid Land, 2019, 11(6): 916-927.

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