Effects of seed size and temperature on seed dormancy in an alpine meadow on the eastern Tsinghai‐Tibet plateau

摘要：

As a complex phenomenon, dormancy is an important persistence mechanism for many weeds in temperate regions (Baskin and Baskin 1998 ).Although germination could be influenced by lots of factors, temperature is one of the most important environmental factors influencing the induction of seed dormancy ( Strand,1980 ).Meanwhile most studies have concentrated on demonstrating intraspecific variation in seed size with respect to their fitness.However, studies dealing with variation in seed size among species are few (Foster 1985 ; Murali KS 1997).In this research, we aimed to assess correlations between seed size and proportion dormancy of 534 plants in a whole community and whether these correlations change depending on temperature treatments.

关键词： seed dormancy alpine meadow temperature treatment seed size Tsinghai‐Tibet plateau

作者: Wenlong Li Jing Xu Guozhen Du Zizhen Li

作者单位: School of Pastoral Agriculture Science and Technology,Lanzhou University,Lanzhou 730000,China Institute of Environmental and Ecological Economics,Lanzhou Commercial College,Lanzhou,730020;China Key Laboratory of Arid and Grassland Agroecology,Lanzhou University,Lanzhou 730000,China.

会议类型: 国际会议

会议名称: 2008世界草地与草原大会

会议地点: 呼和浩特

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）