Effects of sand-burying on seed germination and seedling emergence of six psammophytes species

Abstract

Abstract: This paper studied the effects of sand-burying on the seed germination and seedling emergence of six dominance plants in Keerqin Sandy Land.Six treatments of artificially sand-burying to depths 0,2,4,6,8,10 and 12 cm were designed.The results showed that the seed germination of Agriophyllum squarrosum was significantly different(P<0.05)between different treatments,but that of Artemesia halodendron was only significantly different(P<0.05)between 2 cm and other burial depths.For other four plants,their seed germination was significantly different(P<0.05)only between 0 cm and other burial depths.Sand-burying significantly affected the seedling emergence of all plant species.The emergence rate decreased with increasing burial depth.Higher emergence percentages were obtained at 2 and 4 cm burial depths.The species with larger seeds emerged from deeper depth,and the maximum burial depth of seedling emergence was Sophora flavescdens>Atraphaxis manshurica≥Agriophyllum squarrosum>Hedysarum fruticosum>Bassia dasyphylla>Artemesia halodendron.

Key words: Sand-burying, Seed germination, Psammophytes, Seedling emergence

CLC Number:

Q948.1

LI Rongping, JIANG Deming, LIU Zhimin, LI Xuehua, LI Xiaolan, YAN Qiaoling. Effects of sand-burying on seed germination and seedling emergence of six psammophytes species[J]. Chinese Journal of Applied Ecology, 2004, (10): 1865-1868.

References

[1] Baldwin KA and Maun MA. 1983. Microenvironment of Lake Huron sand dunes. Can J Bot,61:241～255
[2] Brown JF. 1997. Effects of experimental burial on survival, growth,and resource allocation of three species of dune plants. J Ecol, 85:151 ～ 158
[3] Cao X-S (曹新孙 ). 1990. Studies on the Integrated Control of Wind, Sand Drifting and Draught in Eastern Inner Mongolia(2).Huhehante: Inner Mongolia People's Press. (in Chinese)
[4] Chen H, Maun MA. 1999. Effects of sand burial depth on seed germination and seedling emergence of Cirsium pitcheri. Plant Ecol,140 : 53 ～ 60
[5] D' Hertefeldt B and van der Rheenen JWA. 1998. High levels of inter-ramer water translocation in two rhizomatous Carex arenaria and its response to soil-borne pathogens. Oikos, 81:229～237
[6] Grime JP, Mason G, Curtis AV, et al. 1981. A comparative study of germination characteristics in a local flora. J Ecol, 69:1017 ～ 1059
[7] Harper JL. 1977. Population Biology of Plants. New York: Academic Press.
[8] Huang ZY, Gutterman Y. 1998. Artemisia rnonosperma achene germination in sand: Effects of sand depth, sand/water content,cyanobacterial san crust and temperature. J Arid Environ, 38: 27～43
[9] Klimes L, Klimesova J and Osbornova J. 1993. Regeneration capacity and carbohydrate reserves in a donal plant Rumes alpinus: Effect of burial. Vegetation, 109:153～ 160
[10] Maun MA. 1994. Adaptation enhancing survival and establishment of seedling on coastal dune systems. Vegetatio, 111:59～ 70
[11] Maun MA. 1998. Adaptations of plants to burial in coastal sand dunes. Can J Bot, 76: 713 ～ 738
[12] Ren J, Tao L, Liu XM. 2002. Effect of sand burial depth on seed germination and seedling emergence of Calligonum L. species. J Arid Environ, 51 (4): 601 ～ 609
[13] van der Putten WH, van Dijk C and Peters BAM. 1993. Plant-specific soil-borne diseases contribute to succession in foredune vegetation. Nature, 362: 53 ～ 56
[14] van der Valk AG. 1974. Environmental factors controlling the distribution of forbs on coastal oredunes in Cape Hatteras National seashore. Can J Bot, 52:1057～1073
[15] Wang Z, Wang G, Liu X. 1998. Germination strategy of the temperate sandy desert annual chenopod Agriophyllum squarrosum. J Arid Environ, 40: 69 ～ 76
[16] Weller SG. 1985. Establishment of Lithospermum caroliniense on sand dunes:The role of nutlet mass. Ecology, 66:1893 ～ 1901
[17] Yanful M, Maun MA. 1996. Effects of burial of seeds and seedlings from different seed sizes in the emergence and growth of Strophostyles helvola. Can J Bot, 74:1322～ 1330
[18] Zhang JH, Maun MA. 1990. Effects of sand burial on seed germination, seedling emergence, survival, and growth of Agropyron psammophilum. Can J Bot, 68:304～310