Emanuela Lungu, Racz Ionut, Daniel George Serban, Daniela Trifan, Maria Magdalena Turek Rahoveanu, and Ionel Alin Ghiorghe
1 ”Dunarea de Jos” University of Galati, Romania
2 Agricultural Research and Development Station of Braila, Romania
3 University of Agricultural Science and Veterinary Medicine Cluj Napoca, Faculty of Agriculture, Romania
4 Agricultural Research and Development Station Turda, Romania
Twelve winter wheat genotypes with different genetic contitution were studied for their adaptability and performaces in the limitative field conditions in three different seeding rate: 350 seeds/m2, 550 seeds/m2 and 750 seeds/m2. Katarina variety has registered the highest grain yield – 5920.2 kg ha-1 at 350 seeds/m2, Lv 6x genotype 7678.4 kg ha-1 at 550 seeds/m2 and Glosa variety- 7528.1 kg ha-1 at 750 seeds/m2. The relationship between yield traits is quite varied, each genotype having a specific reaction to limited conditions. Regarding the quality indices the most varieties has a high quality parameters. The PCA analysis allowed the identification of performant genotypes both for grain yield and quality parameters. The unfavorable climatic condititions has canceled the advantage of hibrid vigor of Hyxperia genotype both for grain yield and grain quality having a negative economic impact generated by the purchase of hybrid seed compared to variety seeds.