DOI: n/a
Abstract
The aim of this study was to obtain information on the association of different characters in a collection of 49 opium poppy genotypes, as well as to determine the traits that have the highest direct effect on the seed and capsule yield. Significant positive correlations were observed between the seed yield and plant height, number of capsules per plant, diameter of main capsule, weight of main capsule, weight of seed of main capsule and capsule yield per plant. The plant height, number of capsules per plant, number of stigma lobes, diameter of main capsule and seed yield per plant were positively and significantly associated with the capsule yield per plant. The highest correlation was detected between the seed and capsule yield per plant (r=0.817). A path coefficient analysis showed that the capsule yield per plant and the main capsule seed weight had the highest positive direct effect on the seed yield per plant (p=0.567 and 0.564, respectively). On
the contrary, the main capsule seed weight had a significant negative direct effect on the capsule yield per plant. The seed yield per plant (p=0.558), number of capsules per plant (0.389) and diameter of main capsule (p=0.364) had the highest direct effect on that trait. Consequently, these characters could be used for the improvement of the seed and capsule yield in opium poppy.