| Wheat is widely cultivated in the world and the total volume of its annual trade is higher than any other cereal crops. It plays an important role in the world economy.To improve the yield and quality of wheat is an important project to breeder with genetic method. Wild emmer (Triticum. Dicoccoides Kom), as a close species to common wheat, has many good characteristics which can be used to improve common wheat (. T. aestivum L) and is precious material in wheat evalution.To investigate homology of genome A and B between wild emmer and common wheat, an SSR analysis of the two species was conducted. To evaluate the salt tolerance, the salt tolerance of 93 accessions of wild emmer from Israel was studied prilimarily with water culture method . The main results obtained were as follow:1 The DN A polymorphism of genome A and genome B between common wheat and wild emmer could be classified into two groups. It indicated that a considerable degree of genetic differertiation has taken place in the A and B genomes of two species during evolution from wild emmer to common wheat.2 The similarities co-efficiency of A genome of common wheat and wild emmer was slightly higher than that of B genome. The result suggested that different genomes had different genetic speed or stability during evolution.3 The similarities co-efficiency between wild emmer and hexaploid synthetic was higher than that between wild emmer and common wheat. So that crossing among species is not a simple combination of genomes, but involve introgression of chromosomes, and the evolution made by this action was bigger than that made by environment.4 According to the results of salt tolerance identification, the salt tolerance of wild emmer is lower than that of common wheat in the whole. To contrast salt tolerance of 8 different native populations of emmer wheat from Israel, there was a drastical diversity. The native populations No. 3 was higher than others.
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