Abstract:Inheritance of salt tolerance, including leaf firing percentage and reduced percentage of dry shoot clipping weight, in zoysia F1 segregating populations from the cross of Z105(salt tolerant) and Z061( salt sensitive) was investigated by the major gene and polygene mixed genetic model. The results showed that the range of variation of leaf firing percentage and reduced percentage of dry shoot clipping weight for progenies was 10.00~98.33% and 1.87~91.40%, respectively. Both them were far beyond that of their parents(35.00% and 95.00% for leaf firing percentage, 42.10% and 84.59% for reduced percentage of dry shoot clipping weight). One additive major gene model (A-2) was the most suitable model for the leaf firing percentage of Z105×Z061, the additive effect and heritability of major gene was 23.59 and 66.83%, respectively. The reduced percentage of dry shoot clipping weight of Z105×Z061 were controlled by two additive-dominance-epistasis major genes, the most suitable model is B-1 and the additive effects of two major genes were 29.7(da )and 3.23(db) , dominance effects were 15.03(ha)and 2.28(hb),, epistasis effects were-3.23(i), -2.28 (jab), 11.44 (jba), and -12.82 (l), and the heritability was 84.37% (h2mg(%)).