the major purpose of this study is to assess the perception of managers in the forest, range and watershedorganization. it is an applied study by using descriptive–correlative method. a questionnaire was developedand data collected from 105 respondents. the validity and reliability of questionnaires was verified. theresults of study show that there was a relationship between educational level, ...

Climate change during the last 40 years has had a serious impact on agriculture and threatens global food nutritional security. From over half million plant species, cereals legumes are most important for Although systematic breeding relatively short history, conventional coupled with advances in technology crop management strategies increased yields by 56 % globally between 1965?85, referred t...