Assessment of the Degree of Relatedness of Some Inbred Lines Created at ARDS Turda

Knowledge of relatedness among maize elite breeding genotypes is useful in planning crosses for hybrid and inbred line improvement assigning them into heterotic groups. This study investigated phenotypic genetic similarities or diversities between 7 flint lines (of common origin) adapted to the early growing regions created at ARDS Turda-Romania. They were studied per se traits two crossing systems: a diallel system, resulting 21 hybrids cyclic system using four testers, thus 28 hybrids. Both parental evaluated several over three years. The level relatedness/diversity was determined by various methods, grouped into: methods methods. Similarities identified certain degree differentiation others. analysis combinations from crossings seven sister highlighted TD236 as only one that differs genetically other. Following data obtained some can be sources favorable traits: TD233 yield, ear weight, grain/ear weight; TD234 number kernels/row, TD237 plant breaking resistance.