k Rezaei - Islamic Azad University, Abhar branch, Abhar, Iran
z Rezavand - Islamic Azad University, Abhar branch, Abhar, Iran
r Haghparast - Seraroud research institute of rainfed agriculture, Kermanshah, Iran

In recent years, with increasing population, more food supplies are required to be produced. This has, unfortunately, caused the overuse of agricultural lands and chemical fertilizers, which, in turn, has caused thepollution of environment and ground waters, loss of agricultural lands, and endangering the human health. That’s whyresearchers have turned to organic agriculture to minimize the use of chemical substances in agriculture. They have found that one of the most effective ways is increasing genetic diversity in agricultural types, by which they can identify different types that are normally resistant to pests and weeds and have better productivity. With regard to the presence of different sub-climates, it is not possible to identify resistant and superior types in every region, considering the limited facilities of agricultural research centers,that are responsible for introducing new types.

sustainable agriculture, organic agriculture, genetic diversity, evolutionary eugenics, environmental pollution