Osmotic and Ionic Effect on the Seed Germination of Two Phenotypes of Suaeda salsa L. under NaCl Stress Osmotic and ionic stress effects of high NaCl concentration on seedlings of four wheat (Tritium aestivum L.) genotypes Effects of Ecological Factors on Salt-Tolerance of Duccinellia tenuiflora Seeds During Germination Research on Seed Germination Ecology