Chemical mutagenesis in head cabbage Brassica oleracea var. capitata L.: I. Survival and variability of properties from morphological characteristic of M1 generation

The purpose of study was to establish the chemical mutagene influence - ethyl methane sulphonate (EMS) on the germination and the survival of head cabbage plants in M1 generation, Ditmarsko variety, as well as to establish the phenotype expression changes of properties from morphological characteristic in economic maturity. Chemical mutagene EMS application in seed of 0.5 %, 0.6% and 0.7% concentration was studied not to cause lethality under LD50 in M1 generation, Ditmarsko variety. Germination and survival are relatively resistant processes, which were differently influenced by EMS concentration. Chemical mutagene gave inhibiting and stimulating effects on the property expressions from the morphological characteristic of Mj generation genotypes. It resulted in a widely phenotype diversity regarding to studied indexes.