Techniques for improving the quality of seed material of the Pskemski and Altai types of onions

The article presents the results of research on the application of methods of pre-sowing treatment of seeds of perennial types of onion crops: Pskov and Altai their sowing indicators. Of the four options as the most effective for each type of onion. For Altai onions, this is a treatment with succinic acid of 4 g/l, with an exposure of 24 hours, and for Pskov onions, the stratification of seeds with low positive temperatures of +4℃.