1 INTRODUCTIONHydrochlorofluorocarbons(HCFCs)and hydrofluorocarbons(HFCs)are alternatives tochlorofluorocarbons(CFCs),such as CFC12(freon 12),which has been wi
Soil test for availability of nutrients and heavy metals is extensively served as a means for the evaluations of soil fertility, and environmental effects and
Embryogenic calli were induced from the mature seeds of the hexaploid semi-winter wheat. The embryogenic cell line was established, and then the friable calli