Characteristics of Seed-Setting of Two Ecotypes Leymus chinensis on Heterogeneity Soil

Abstract:

Characteristics of seed-setting of two Leymus chinensis ecotypes under saline-alkali soil and sandy soil habitats on Songnen plain were studied, such as number of grains and seed-setting percentage. The results showed that number of grains and seed-setting percentage of two L. chinensis ecotypes fluctuated within a certain range. Variation coefficients of single spike grain number and seed-setting percentage were 79.37% and 87.2% higher. The number of grains and seed-setting percentage of two L. chinensis ecotypes under saline-alkali soil habitat were lower than those under sandy soil habitat. Significance test showed that seed-setting percentage of two L. chinensis ecotypes, and the single spike grain number of grey-green L. chinensis ecotypes between saline-alkali soil habitat and sandy soil habitat were significant or very significant. In results, the sexual reproduction of two L. chinensis ecotype populations had a stronger adaptation for the habitats, the two ecotypes take the same adaptable reproduction strategy, due to the change of habitat condition, the characteristics of seed-setting have a plastic changes accordingly, and individual difference in population under the same habitat was resulted by microhabitat differences.

• Periodical: Applied Mechanics and Materials (Volumes 522-524)
• Pages: 1076-1079
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.522-524.1076
• Online since: February 2014
• Authors: Chan Zhou, Jun Feng Zhu, Hui Liang, Zhuo Zhang, Yun Fei Yang*
• Keywords: Ecotype, Leymus chinensis, Plasticity, Seed-Setting, Songnen Plain

References

[1] D. Li and H. Y Zheng: Remedy Ways and Biological Mechanism of Saline-alkali Grassland on Songnen Plain, (Science Press, Beijing, 1995). In Chinese.

[2] G.Z. Bao, C.L. Kang and X.L. Li: Acta Ecology Sinica. Vol. 22, No. 8 (2002), pp.1362-1366. In Chinese.

[3] Z. Cui, L.Y. Qu and Y. G. Zu: Acta Ecology Sinica. Vol. 20, No. 3 (2000), pp.434-439. In Chinese.

[4] C Zhou and Y.F. Yang: Chinese Journal of Applied Ecology. Vol. 17, No. 1 (2006), pp.51-54. In Chinese.

[5] Z.X. Su: Acta Ecology Sinica. Vol. 16, No. 5 (1996), pp.517-527. In Chinese.

[6] Y.F. Yang and D.J. Li: Acta Ecology Sinica. Vol. 21, No. 5 (2001), pp.752-758. In Chinese.

[7] Y.F. Yang and L Zhu: Botany Journal. Vol. 37, No. 3 (1995) , pp.222-230. In Chinese.

[8] Z. C Zhong: Chin. Journal of Plant Ecology. Vol. 19, No. 2 (1995), P. 1-13. In Chinese.

[9] Y.F. Yang, Y. C Zhu: Acta Ecology Sinica. 8(1988), pp.256-262. In Chinese.

[10] C. Zhong: Research on Ecological Adaption Mechanism of Plant Populations, (Science. Press, Beijing, 2000). In Chinese.

[11] C. Zhou, Y F. Yang: Progress in Natural Science. Vol. 16, No. 11 (2006), pp.1150-1155. In Chinese.

[12] Y.F. Yang, L.M. Yang and B. T Zhang: Botany Journal. Vol. 42, No. 3 (2000), pp.294-299. In Chinese.

[13] C.H. Zhang, Y.F. Yang: Acta Ecology Sinica. Vol. 10, No. 2 (2001), pp.7-13. In Chinese.

[14] Y.F. Yang, H.Y. Zheng and J.D. Li: Acta Ecology Sinica. Vol. 18, No. 3 (1998), pp.302-308. In Chinese.

[15] N Zhu: The Status Quo and Progress on Plant Population Ecology (Heilongjiang Science and Technology Publications, Harbin, 1994). In Chinese.

[16] N Zhu: The Status Quo and Progress on Plant Population Ecology (Heilongjiang Science and Technology Publications, Harbin, 1994). In Chinese.

[17] H Jiang: Spruce Population Ecology, (China Forestry Publications, Beijing, 1992). In Chinese.

[18] Y.C. Zhu: Biological Ecology of L. chinensis, (Jilin Science and Technology Publications, Changchun, 2004). In Chinese.

[19] V.M. Kerner: Their Forms, Growth, Reproduction, and Distribution (Holt Publications, New York, 1895).

[20] K.P. Wang: Research on L. chinensis Species DifferentiationⅠ: Study of Wild Populations, (Chinese Forestry Publications, Beijing, 1984). In Chinese.

[21] C. Zhou, Y. F Yang: Progress in Natural Science. Vol. 14, No. 11 (2003), pp.1840-1845. In Chinese.