Evaluation of the efficiency of micropropagation of some raisin grape varieties in <i>in vitro</i> culture
The research was carried out in the period of 2014 to 2017 in the Center of biotechnology of the Tajik National University. For the first time in Tajikistan, an assessment of the effectiveness of micropropagation of raisin grape varieties growing in the country was carried out. The different regenerative capacity in in vitro culture was noted at the stage of micropropagation of explants of the studied grape varieties during four passages. An even increase in the average value of the multiplication coefficient over passages of eleven seedless grape varieties is observed from the first to the fourth passage (from 1.5 in the first passage to 3.3 in the fourth). The average value of the multiplication coefficient for the four types of investigated explants by passages is practically the same.