Influence of methods of planting micro-plants of potatoes on the number of minitubers

The paper presents the results of research on the comparative evaluation of methods for obtaining minitubers of potatoes of promising varieties of Russian selection. In the course of research, the most preferred methods for growing micro-plants for each variety were identified, which allow to achieve the maximum yield of minitubers from one plant. Of all the varieties studied in the course of the study, the most balanced by fractional composition was the early variety Udacha. To get the maximum number of mini-tubers of potatoes from one plant of the Gusar and Bellarosa varieties, micro-plants that are previously rooted in seedling cassettes should be planted in the beds. For Charoit, Samba, Courtney, Irbitsky and St. Petersburg varieties, rooted plants should be potted. Potato plants of Pennant, Nevsky and Reggae varieties produced top yields of mini tubers when they were bedded directly from test tubes. Luck variety produced the highest tuber yield when its plants were planted in 5L plastic pots. The Lux variety turned out to be more plastic – the plants formed the same number of tubers in three variants at once. A less preferred method for obtaining minitubers for this variety is to plant pre-rooted plants in the beds.