首页|Seed germinating characteristics of 54 gramineous species in the alpine meadow on the eastern Qinghai-Tibet plateau
Seed germinating characteristics of 54 gramineous species in the alpine meadow on the eastern Qinghai-Tibet plateau
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NSTL
万方数据
维普
The germination experiment was started on March 3,2004,and seeds were collected from July to October in 2003.We analyzed the percentage of germination,days to first germination,germination period and days to 50% germination.Among the 54 examined species,26 species exceeded 80% germination,11 species exceeded 60%-80% germination,8 exceeded 40%-0%,5 exceeded20%-40%,and 4 showed less than 20%.A principalcomponent analysis revealed that the species were distributed along two statistically independent axes,the first primarily represented the germination rate and the second represented the time of germination process.Based on scores of germination characteristics,duster analysis of the 54 gramineous species could be divided into 4 distinct groups:rapid,slow,intermediate germinating (germination percentage＞ 50%),and low germinating (germination percentage＜ 50%).The meaning of different groups to the vegetation regeneration was discussed.
alpine meadowgramineous speciesseed germination
Haiyan BU、Qingji REN、Xiuli XU、Kun LIU、Peng JIA、Shujun WEN、Dashuai SUN、Guozhen DU
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Key Laboratory of Arid and Grassland Agroecology of Ministry of Education,School of Life Sciences,Lanzhou University,Lanzhou 730000,China
Grassland Workstation of Tibetan Autonomous Prefecture of Gannan,Hezuo 747000,China
NETL
NSTL
万方数据
维普
