THE REACTION OF SOME WINTER BARLEY GENOTYPES TO THE NORTH-WEST PEDOCLIMATIC CONDITIONS OF ROMANIA

This paper is aimed to evaluate the behaviour of 25 winter barley genotypes, tested on the acid soils at ARDS Livada during the 2016-2018 period, in two ways of sowing: one at a distance of 12.5 cm between the rows and the other one at the distance of 25cm. The variance analysis led to the fact that the sowing distance (D), as a variation source, does not significantly influence the yield On the other hand the variety (S) and the interaction of distance and years between the barley varieties, had a significant influence on the yield The regression analysis and the variation coefficient led to the identification of the most productive, stable and adaptable genotypes. specific to this area (Ametist, Cardinal, Artemis, Smarald). The larger sowing distance positively influenced the thousand grain weight, the hectolitre mass and the number and weight of the barley grains/ears. The attacks of the pathogen agents have been reduced (with 3-6%) and the resistance to lodging has been increased (with over 30%).