Effects of wheat varieties on main life parameters of wheat aphids Relationship between chemical compositions of "8455" wheat plant and population dynamics of Schizaphis graminum and Macrosiphum avenae Rain and wind interfere with natural population development of Macrosiphum avenae (Fabricius) Fuzzy comprehensive decision-making for resistance of wheat varieties to Macrosiphum avenae Resistance to aphid determining and screening in wheat species (lines) or sources THE RELATION BETWEEN AMINO ACIDS AND THE RESISTANCE OF WHEAT VARIETIES TO THE ENGLISH GRAIN APHID MACROSIPHUM AVENAE F.