Effects of Salinity and Water Depth on Germination of Phragmites Australis in Coastal Wetland of the Yellow River Delta
1154 Clean – Soil, Air, Water 2012, 40 (10), 1154–1158 Junbao Yu1 Research Article Xuehong Wang1,2 Kai Ning1,2 Yunzhao Li1,2 Effects of Salinity and Water Depth on Germination Huifeng Wu1 of Phragmites australis in Coastal Wetland of the Yuqin Fu1,2 Di Zhou1,2 Yellow River Delta Bo Guan1 3 Qianxin Lin Phragmites australis, a perennial herb and a widespread species, is widely distributed in coastal wetland in the Yellow River Delta. Laboratory experiments were carried out to 1 Key Laboratory of Coastal Zone assess the effects of water and salinity on seed germination of P. australis and recovery Environmental Processes, Yantai Institute of Coastal Zone Research response after seed transferred to distilled water. The germination responses of seeds (YIC), Chinese Academy of Sciences were determined over a wide range of salinities of 0, 0.5, 1, 2, 2.5, and 3% and water (CAS); Shandong Provincial Key depths of 0, 2, 4, 6, 8, 10, and 15 cm. Final percent germination and germination speed Laboratory of Coastal Zone except for at 0.5% salinity treatment were decreased with increasing salinities. Lower Environmental Processes, YICCAS, Yantai, P. R. China salinity (0.5%) could stimulate germination of P. australis, while seed germination was 2Graduate University of Chinese nearly inhibited completely at salinity 3%. P. australis percent germination was Academy of Sciences, Beijing, China decreased with water depth increasing except 2 cm water depth treatment. Percent 3Department of Oceanography and germination and speed were great and fast at lower water depth. After end of the Coastal Sciences, Louisiana State recovery period, the final percent germination of P.
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