[Effects of sand-burying on seed germination and seedling emergence of six psammophytes species].
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 > or = Agriophyllum squarrosum > Hedysarum fruticosum > Bassia dasyphylla > Artemesia halodendron.
Li
Rongping
R
Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China.
Jiang
Deming
D
Liu
Zhimin
Z
Li
Xuehua
X
Li
Xiaolan
X
Yan
Qiaoling
Q
D019663:Chenopodiaceae / Q000502:physiology; D003889:Desert Climate; D018525:Germination / Q000502:physiology*; D018521:Plant Physiological Phenomena; D036226:Seedlings / Q000502:physiology*; D012639:Seeds / Q000502:physiology*; D012822:Silicon Dioxide; D029909:Sophora / Q000502:physiology*
D012822:Silicon Dioxide