THE PRODUCTIVITY OF SOME WHEAT VARIETIES IN THE SOIL AND CLIME CONDITIONS FROM SOUTH-WESTERN ZONE OF MEHEDINTI COUNTY

The researches aimed the comparative study of some winter wheat varieties in conventional cropping system in the conditions of reddish preluvosoil from Vanju Mare, on a 400 ha surface for a better knowing of their features in order to recommend them for cropping. During two years (2016 – 2017) there have been cropped the following wheat crop kinds: Glossa – romanian variety and two austrian varieties: Balaton and Astardo.Regarding the yield obtained by Glossa variety, it recorded an average of 6.100 kg/ha and Balaton and Astardo varieties, an average yield of 7200 kg/ha. The high yield recorded by austrian varieties is due to the fact that they belong to Premium group, very productive, very tolerant to drought and with high ecological plasticity, with good winter resistance, high tillering capacity, highly receptive to fertilizers and superior as quality. The biologic potential is very high, reaching 11.000 kg/ha. The protein content of the wheat grain depends on the following factors: the variety, the cropping technology (irrigation, fertilization) and the soil and clime conditions. Good protein content determines a good baking quality. Among the technological factors, the fertilization is the most important that increases the protein content of the wheat kernels. The wet gluten content and the falling index are favorably influenced by the nitrogen fertilizer applying. There is recommended the cropping of wheat varieties that have a high production capacity, with a good resistance to the main risk factors of the clime, with tolerance to the main foliar diseases, with superior quality indicators from different maturity classes