Breeding Studies On Sunflower(Helianthus Annuus L.)

Provide an Information on the variability and heritability of some agrronomic characters inciuding yield and its components in eieven sunfiower cultivars under different nitrogen fertil ization rates. another objective of this study was to det- ermine the phenotypic, genotypic and envirommental correl ation coefficients between the most important sunflower ch- aracters as well as path coefficient and regression coeffi cient.