The variety of forms that occur in a plant species reflect its genetic diversity. Since this germplasm represents the raw material with which plant breeders work there is considerable interest in preserving representatives of old varieties, land races and related wild species[Pluknet et al.,1987]. These line may be a valuable source of agronomic genes in the future. Biotechnology makes diverse germplasm sources more valuable than ever before because genetic material form different species,genera and even kingdoms can now be stably incorporated and expressed in plant.