Published in Scientific Papers. Series A. Agronomy, Vol. LX
Written by Cristian Laurențiu DRAGOMIR
The paper analyzes the behavior of 10 winter wheat genotypes, under 2012-2016 specific conditions, on south-east part of Romania at ARDS Valu lui Traian, Constanta. The cultivars under study had a good behaviour and a different reaction to environmental conditions during 2012-2016. The rainfalls and temperatures from testing period were characterized by large fluctuations, so that, the yield ranged from one year to another. The yields registered by the cultivars under test, generally was affected by the climatic conditions: the highest yields being obtained in 2016 an year with good rainfall and temperatures level, while the lowest ones in the driest year, 2014. Yield stability has been estimated using the relationship between yield of each variety and average of trial, analysis of variance coefficient. In average, on five years, the genotypes Ostrov, Miranda and Faur had the better results. Ostrov genotyp manifested a higher yield stability, Miranda, Faur and Litera had a better stability under contrasting environmental conditions. The purpose of the study was to evaluate the yield performance and stabilities to make the better recommendations about adapted winter wheat cultivars under contrasting environmental conditions, for area farms.
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