ORGANIZATION OF COMPETITIVE VARIETY TESTING OF SELECTED PROMISING POTATO VARIETIES

This article outlines the results of an experiment comparing the newly developed potato variety “Tashkent Ertagisi” with the standard variety “Sante” in an early-stage trial. According to the experimental findings, the phenological observations of the “Tashkent Ertagisi” and standard “Sante” varieties grown in the selection nursery were as follows. In the standard variety, it took 28 days for 75% of the seedlings to emerge, 34 days for tuber formation, and 52 days for flowering. In contrast, the new “Tashkent Ertagisi” variety required only 22 days for 75% seedling germination, 28 days for tuber formation, and 38 days for flowering. Experimental results confirmed that the growth phases of the new “Tashkent Ertagisi” variety developed 18-20 days earlier than those of the standard variety.