|
|
|
Seed germinating characteristics of 54 gramineous
species in the alpine meadow on the eastern Qinghai-Tibet plateau |
| Bu Haiyan1, Xu Xiuli1, Liu Kun1, Jia Peng1, Wen Shujun1, Sun Dashuai1, Du Guozhen1, Ren Qingji2 |
| 1.Key Laboratory of Arid and Grassland Agroecology of Ministry of Education, School of Life Sciences, Lanzhou University; 2.Grassland Workstation of Tibetan Autonomous Prefecture of Gannan |
|
|
|
|
Abstract 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 exceeded 20%–40%, and 4 showed less than 20%. A principal-component 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, cluster 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.
|
|
Issue Date: 05 June 2008
|
|
| 1 |
Du G Z 1994 Study of germination process of the common grasses in subalpinemeadow under different temperaturesJournalof Lanzhou University (Natural sciences)30(3)112116 (in Chinese)
|
| 2 |
Grime J P Mason G Curtis A V 1981 A comparative study of germination characteristicsin a local floraJournal of Ecology6910171059.
doi:10.2307/2259651
|
| 3 |
Freas K E Kemp P R 1983 Some relationshipsbetween environmental reliability and seed dormancy in desert annualplantsJournal of Ecology71211217.
doi:10.2307/2259973
|
| 4 |
Harper J L 1977 Population biology of plantsAcademicPress Inc
|
| 5 |
Huang Z Y Gutterman Y 2000 Comparisonof germination strategies of Artemisia ordosica with its two congenersfrom deserts of China and IsraelActa BotanicaSinica42(1)7180 (in Chinese)
|
| 6 |
Huang Z Y Gutterman Y Hu Z H 2000 Seed dispersal and germination in desertplant. Progress of Plant Science (Vol.3, Edited by Li C S)169178BeijingHigher Education Press (in Chinese)
|
| 7 |
Li X H Liu Z M Jiang D M 2004 A comparative study on seed weight, shapeand germination characteristics of 7 Artemisia speciesChinese Journal of Ecology23(5)5760 (in Chinese)
|
| 8 |
Liu Z M Jiang D M Gao H Y 2003 Relationships between plant reproductivestrategies in the life history and disturbanceChinese Journal of Applied Ecology14418422 (in Chinese)
|
| 9 |
Liu Z M Li X H Li R P 2004 A comparative study of seed germinationfor 31 annual species of the Horq in steppeActa Ecologica Sinica24(3)648653 (in Chinese)
|
| 10 |
Olff H 1994 Germination strategies during grassland successionJournal of Ecology826977
|
| 11 |
Sachiko A Izumi W 2000 Seed dormancy/germinationtraits of secen Persicaria speciesand their implication in soil seed bank strategyEcology Research153346.
doi:10.1046/j.1440‐1703.2000.00323.x
|
| 12 |
Wang X M Yi J 2003 The studyon germinating conditions and physiological characteristics of Ceratoides seedsActa Agrestia Sinica11(2)95102 (in Chinese)
|
| 13 |
Wang Z L Wang G Liu X M 1997 Experiment on germination ecology of somedesert plantsJournal of Desert Research17(Suppl.3)1620 (in Chinese)
|
| 14 |
Wang Z L Xu Y Q Wang G 1998 Germination strategies of annual sandyplants under limited precipitationJournalof Lanzhou University (Natural sciences)34(2)98103 (in Chinese)
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
