AGRONOMIC PERFORMANCE OF DOUBLED HAPLOID WHEAT-VARIETIES

To determine the value of phenotypic variability of populations of dif ferent origins, two DH varieties (GK Delibab, GK Szindbad), a DH varie ty candidate (Ambitus) and two conventional winter wheat varieties (GK Istvan, GK Kincso) were compared for seven agronomic traits. The aim of the study was to find out if values of phenotypic variability of th eoretically homozygous DH varieties are lower than variability of not homozygous traditional varieties, which have some genetic variation. O n the basis of our analysis it can be established that there is no obv ious difference in the variability of examined characters (plant heigh t, spike length, spike width, spikelet length, spiklet width, number o f node/spike and number of seeds/spike) of populations of different or igins. The value of coefficients of variations (CV) ranged between 5-1 0%, which is characteristic for the balanced population. Only the valu e CV of seed-number/spike was higher. In conclusion, it appears that t he examined populations of different origins cannot be separated by th e value of variability.