Seed germination of three dominant Artemisia species in loess hilly region: alternating temperature, osmotic potential, and light effects
Date
2008-02-28
Authors
Chao, Y.
Zong-suo, L.
Journal Title
Journal ISSN
Volume Title
Publisher
ORCID
Type
Presentation
Degree Level
Abstract
In this study, we evaluated the effects of alternating temperature, osmotic potential and light in the achene germination of three dominant Artemisia species (A. scoparia, A. gmelinii Web. and A. giraldii Pamp.) on arable old land after being abandoned in loess hilly region of Northern Shaanxi, in order to provide information about germination requirements which could be use for conservation studies. Results showed that A. scoparia had wider alternating temperature extremes than two other species and A. giraldii Pamp. and A. gmelinii Web. had lower optimum alternating temperature (25 oC/20 oC) than A. scoparia (30 oC/25 oC). Osmotic potential affected germination of all species significantly, but A. scoparia had better germination results than others in every treatment. In light treatments, although A. giraldii Pamp. and A. gmelinii Web. had lower germination proportion in white light, they had bigger germination proportion in darkness than A. scoparia.
Description
Keywords
arable old land after being abandoned, seed storage, mucilaginous layer
Citation
Degree
Department
Program
Advisor
Committee
Citation
Part Of
Soils and Crops Workshop