Correlation and path-coefficent analysis in half sib families of globe artichoke (Cynara cardunculus var. Scolymus (l.) Fiori)

Abstract

The yield is a complex trait and indirect selection through correlated, less complex and easy measurement traits would be anadvisable strategy to increase yield. To assess artichoke genetic variation for different agronomic traits, the phenotypic andgenotypic correlation coefficients among these traits and the direct and indirect effects of these traits on the total yield, 10 halfsibfamilies were used. Total yield recorded positive genotypic correlation with number of heads and the length, diameter andweight of heads. Number of head and their weight had direct positive contribution towards total yield per plant. Indirect effect ofplant diameter and length and weight of head, on number of heads plant height, are shown. These results allow us to selectmaterials with high yields by choosing those with a large diameter of plant and upper length of main head.

Keywords

• Genetic correlation
• Agronomic traits
• Path analysis
• Half-sibs
• Cynara