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Seed dormancy and germination of three herbaceous perennial desert ephemerals from the Junggar Basin, China

  • An-jun Tang (a1), Mei-hua Tian (a2) and Chun-lin Long (a1) (a3)

Abstract

The purpose of our study was to better understand seed germination ecology of the spring ephemeral herbaceous perennials, Ixiolirion tataricum, Tulipa iliensis and Scorzonera pusilla, in the temperate desert in the Junggar Basin of northwestern China. Seeds of I. tataricum, T. iliensis and S. pusilla were dormant at maturity but when subjected to cold, dry (2 months at 4°C) followed by cold, wet ( ≤ 40 days at 4°C) conditions, they germinated to 100%, 96% and 93%, respectively. After 2 months' dry storage at 4°C, seeds germinated to only 11%, 3% and 42%, respectively at 15°C, and no seeds germinated at 30°C. Seeds of the three species were not sensitive to light. Low ( < 12.7%) and high (21.4%) soil moisture contents suppressed germination. In addition, both final germination percentages and rates of the three species decreased dramatically with a decrease in water potential from 0 to − 3.17 MPa. Thus, the low-temperature requirement for dormancy break and germination cues seed germination to occur in early spring when soil moisture is favourable for germination and subsequent seedling establishment.

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Corresponding author

*Correspondence Fax: +86 871 521 6201 Email: long@mail.kib.ac.cn (C.-l. Long); tanganjun@mail.kib.ac.cn (A.-j. Tang)

References

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Baskin, C.C. and Baskin, J.M. (1988) Germination ecophysiology of herbaceous plant species in a temperate region. American Journal of Botany 72, 285305.
Baskin, C.C. and Baskin, J.M. (1998) Seeds: ecology, biogeography and evolution of dormancy and germination. San Diego, Academic Press.
Beatley, J.C. (1974) Phenological events and their environmental triggers in Mojave desert ecosystems. Ecology 55, 856863.
Boyer, J.S. and Knipling, E.B. (1965) Isopiestic technique for measuring leaf water potentials with a thermocouple psychrometer. Proceedings of the National Academy of Sciences, USA 54, 10441051.
Bulmer, M.G. (1984) Delayed germination of seeds: Cohen's model revisited. Theoretical Population Biology 26, 367377.
Cohen, D. (1996) Optimizing reproduction in a randomly varying environment. Journal of Theoretical Biology 12, 119129.
Donohue, K. (2003) Setting the stage: phenotypic plasticity as habitat selection. International Journal of Plant Sciences 164, S79S92.
Flores, J., Jurado, E. and Arredono, A. (2006) Effects of light on germination of seeds of Cactaceae from the Chihuahuan Desert, Mexico. Seed Science Research 16, 149155.
Gao, W.Y., Li, Z.L. and Xiao, P.G. (1997) Temperature effects on seed dormancy relieving of Fritillaria thunbergii Miq. Journal of Chinese Pharmaceutical Sciences 6 (3), 160165(in Chinese with an English abstract).
Ghazanfar, S.A. (1997) The phenology of desert plants: a 3-year study in a gravel desert wadi in northern Oman. Journal of Arid Environments 35, 407417.
Gutterman, Y. (1990) Does the germination differ in plants originating in deserts receiving winter or summer rain? Israel Journal of Botany 39, 355372.
Gutterman, Y. (1993) Seed germination in desert plants. Berlin, Springer-Verlag.
Huang, Z.Y. and Gutterman, Y. (1999) Germination of Artemisia sphaerocephala (Asteraceae) occurring in the sandy desert areas of Northwest China. South African Journal of Botany 65, 187196.
Huang, Z.Y. and Gutterman, Y. (2000) Comparison of germination strategies of Artemisia ordosica with its two congeners from deserts of China and Israel. Acta Botanica Sinica 42 (1), 7180(in Chinese with an English abstract).
ISTA (International Seed Testing Association) (1999) International rules for seed testing. Seed Science and Technology 27 (Supplement), 1333.
Khan, M.A. and Ungar, I.A. (1997) Effects of the thermoperiod on recovery of seed germination of halophytes from saline conditions. American Journal of Botany 84, 279283.
Koller, D. (1969) The physiology of dormancy and survival of plants in desert environments. Symposium of the Society of Experimental Biology 23, 449469.
Koller, D., Sachs, M. and Negbi, M. (1964) Germination-regulating mechanisms in some desert seeds. VIII. Artemisia monosperma. Plant and Cell Physiology 5, 85100.
Liu, P., Zhang, H.B., Qin, L., Jiang, G.Q., Lan, H.Y. and Zhang, F.C. (2007) Preliminary study on characteristics of fecundity and germination of four ephemeral plants in Xinjiang. Xinjiang Agricultural Sciences 44, 247251(in Chinese with an English abstract).
Liu, Y.X. (1982) Inquiring into the formation of Chinese desert flora. Acta Phytotaxonomica Sinica 2, 131141(in Chinese with an English abstract).
Ma, S.J. and Tan, D.Y. (2007) Phenology and sex expression of Junggar desert ephemerals Neotorularia korolkovii and Isatis violascens (Brassicaceae). Acta Ecologica Sinica 27, 486496(in Chinese with an English abstract).
Ma, S.J., Liu, X.F. and Tan, D.Y. (2006) The phenology of ephemeral plants of eight Brassicaseae and its adaptation to the desert environment. Journal of Xinjiang Agricultural University 29, 14(in Chinese with an English abstract).
Mao, Z.M. and Zhang, D.M. (1994) The conspectus of ephemeral flora in northern Xinjiang. Arid Zone Research 11, 126(in Chinese with an English abstract).
Moot, D.J., Scott, W.R., Roy, A.M. and Nicholls, A.C. (2000) Base temperature and thermal time requirements for germination and emergence of temperate pasture species. New Zealand Journal of Agricultural Research 43, 1525.
Pake, C.E. and Venable, D.L. (1996) Seed banks in desert annuals: implications for persistence and coexistence in variable environments. Ecology 77, 14271435.
Pan, W.B. and Huang, P.Y. (1995) The ecology of four ephemeral plants. Acta Phytoecologica Sinica 19, 8591(in Chinese with an English abstract).
Pías, B. and Guitián, P. (2001) Flowering phenology and pollen-to-ovule ratio in coastal dune communities near Eurosiberian–Mediterranean border in NW Iberian peninsula. Flora 196, 475482.
Pons, T.L. (2000) Seed responses to light. pp. 237260in Fenner, M. (Ed.) Seeds: the ecology of regeneration in plant communities (2nd edition). New York, CAB International.
Probert, R.J. (2000) The role of temperature in the regulation of seed dormancy and germination. pp. 261292in Fenner, M. (Ed.) Seeds: the ecology of regeneration in plant communities (2nd edition). New York, CAB International.
Rees, M. (1994) Delayed germination of seeds: a look at the effects of adult longevity, the timing of reproduction, and population age/stage structure. The American Naturalist 144, 4364.
Rojas-Aréchiga, M., Orozco-Segovia, A. and Vázquez-Yanes, C. (1997) Effect of light on germination of seven species of cacti from the Zapotitlán Valley in Puebla, México. Journal of Arid Environments 36, 571578.
Sun, C.G. and Fang, J. (2000) Studies on the medicinal plant seed germination of lily family (Liliaceae). Chinese Traditional and Herbal Drugs 31, 127129(in Chinese with an English Abstract).
Tang, A.J. (2008) Comparative studies on physio-ecological characteristics of seeds of different species in heterogenous environments. Doctoral dissertation, The Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China.
Tang, A.J., Tian, M.H. and Long, C.L. (2009) Environmental control of seed dormancy and germination in the short-lived Olimarabidopsis pumila (Brassicaceae). Journal of Arid Environments 73, 385388.
Tielbörger, K.andValleriani, A. (2005) Can seeds predict their future? Germination strategies of density-regulated desert annuals. Oikos 111, 235244.
Tobe, K., Zhang, L.P. and Omasa, K. (2006) Seed germination and seedling emergence of three Artemisia species (Asteraceae) inhabiting desert sand dunes in China. Seed Science Research 16, 6169.
Valverde, T., Quijas, S., López-Villavicencio, M. and Castillo, S. (2004) Population dynamics of Mammillaria magnimamma Haworth (Cactaceae) in a lava-field in Central Mexico. Plant Ecology 170, 167184.
Walck, J.L., Baskin, J.M. and Baskin, C.C. (2000) Increased sensitivity to green light during transition from conditional dormancy to nondormancy in seeds of three species of Solidago (Asteraceae). Seed Science Research 10, 495499.
Wang, X.Q., Jiang, J., Lei, J.Q., Zhang, W.M. and Qian, Y.B. (2003) Distribution of ephemeral plants and their significance in dune stabilization in the Gurbantunggut Desert. Journal of Geographical Sciences 13, 323330.
Wang, Y. (1993) Phenological observation of the early ephemeral and ephemeroid plant in Xinjiang. Arid Zone Research 10, 3439(in Chinese with an English abstract).
Wesche, K., Pietsch, M., Ronnenberg, K., Undrakh, R. and Hensen, I. (2006) Germination of fresh and frost-treated seeds from dry Central Asian steppes. Seed Science Research 16, 123136.
Yin, L.K., Zhang, J., Wei, Y. and Yan, C. (2004) Biodiversity and conservation of plant germplasm resources in Xinjiang. Arid Zone Research 21 (Supplement), 58(in Chinese).
Zhang, X.T. and Tan, D.Y. (2007) Phenology of 10 ephemeral species of Asteraceae in relation to the main meterological factors. Arid Zone Research 24, 470475(in Chinese with an English abstract).
Zong, W.J., Liu, K., Bu, H.Y., Xu, X.L. and Wu, G.L. (2006) The mode of seed size variation and the effects of seed size on fifty-one species of Compositae plants in an alpine meadow. Journal of Lanzhou University (Natural Sciences) 42, 5255(in Chinese with an English abstract).

Keywords

Seed dormancy and germination of three herbaceous perennial desert ephemerals from the Junggar Basin, China

  • An-jun Tang (a1), Mei-hua Tian (a2) and Chun-lin Long (a1) (a3)

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