"Per se" value in some synthetic varieties of corn created at SCDA Turda.

Using different breeding methods (mass selection, recurrent selection full -SIB and half –SIB, recurrent selection with testcross) year by year corn breeder aims to improve genetic heritage of synthetic population, to amplify the additive effect of gene interaction inside the population in order to simplify his creation work for superior inbred lines and hybrids. This paper presents results obtained in two location trials designed and planted in 2006 and 2007 using some corn synthetic populations created at SCDA Turda. There were registered data concerning yield, lodging, and earliness in assay to get a better initial genetic material for further breeding work. Some of the synthetics have prooved good tolerance to water stress but their yielding capacity is lower then in case of commercial hybrids, on a very significant level.