NDLI: Strong light inhibits germination of Artemisia sphaerocephala and A. ordosica at low temperature and its relevance to revegetation in sandy lands of Inner Mongolia, China

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Strong light inhibits germination of Artemisia sphaerocephala and A. ordosica at low temperature and its relevance to revegetation in sandy lands of Inner Mongolia, China

Content Provider	Springer Nature Link
Author	Lai, Liming Zheng, Yuanrun Bai, Hua Yu, Yunjiang An, Ping Li, Xiangjun Rimmington, Glyn M. Shimizu, Hideyuki
Copyright Year	2010
Abstract	Artemisia sphaerocephala and A. ordosica are two dominant shrub species in Mu Us sandy land (Inner Mongolia, China) and are widely used for vegetation restoration. However, there are two different conclusions about the effect of light on their germination: light promotes germination versus light inhibits germination. The aim of this study was to evaluate these two conclusions and relate the results to instances of failure of these two species to germinate well when air-dispersed in revegetation projects. The effects of fluctuating temperature, light/dark, source (population), position on mother plant, storage condition, and storage time were tested on germination of achenes of these two species. At low temperature, final percent germination (FPG) of achenes in dark and nearly dark conditions was significantly higher than those in light. At 10:20°C, achenes of both A. sphaerocephala and A. ordosica had higher FPG in dark than in light regardless of source, position on mother plants or storage condition. At suboptimum (5:15°C) and supraoptimal (25:35°C) temperatures, germination of A. sphaerocephala and A. ordosica achenes was inhibited in both light and darkness. It was concluded that light inhibits germination of A. sphaerocephala and A. ordosica achenes at low (10:20°C) temperature but not at high (15:25°C) temperature. Since the temperature in Mu Us sandy land is around 10:20°C in early June, when air sowing is done, achenes should germinate best when they are covered by a thin layer of sand.
Starting Page	771
Ending Page	780
Page Count	10
File Format	PDF
ISSN	09123814
Journal	Ecological Research
Volume Number	25
Issue Number	4
e-ISSN	14401703
Language	English
Publisher	Springer Japan
Publisher Date	2010-03-26
Publisher Place	Japan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Artemisia ordosica Artemisia sphaerocephala Desertification Germination Light intensity Mu Us sandy land Vegetation rehabilitation Forestry Behavioural Sciences Evolutionary Biology Zoology Plant Sciences Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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