Chemical Mutagenesis in Selection Currants ( <i>Ribes L.)</i> and Gooseberry ( <i>Grossularia Mill</i>.)
The optimum concentration of the solutions for the treatment of mutagens varieties of black currants, red currants and gooseberries: 0.005% nitrozoetilmochevina, 0.01% diethyl sulfate, 0.1% ethyleneimine, 0.05% dimethyl sulfate exposure at 12 hours. When using higher concentrations of mutagens (0.5 to 1%), along with an increase in the total number of mutants, reduced the percentage of plants with economic utility changes. At a concentration of 1% solutions of mutagens is no shoot development of terminal buds due to shrinkage. The higher number of somatic mutations induced nitrozoetilmochevinoy and diethyl less ethylenimine and dimethyl sulfate. Mutant forms of black currants, red currants and gooseberries with morphological change and leaf chlorophyll violations revealed a clear relation to yield and bush habit.