Effects of sand-burying on seed germination and seedling emergence of six psammophytes species
Li, R.; Jiang, D.; Liu, Z.; Li, X.; Li, X.; Yan, Q.
Ying Yong Sheng Tai Xue Bao 15(10): 1865-1868
2004
ISSN/ISBN: 1001-9332 PMID: 15624824 Document Number: 567650
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( P0.05) between different treatments, but that of Artemesia halodendron was only significantly different (P0.05) between 2 cm and other burial depths. For other four plants, their seed germination was significantly different (P0.05) 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.