TY CONF TI RESULT OF BREEDING RESEARCH ON POTATO HYBRIDS IN THE REPUBLIC OF MARI EL. KW potatoes KW hybrids KW diseases KW productivity KW selection KW genotype. JO XIII All-Russian scientific-practical conference of young scientists «Achievements and prospects of development of the Russian agriculture", dedicated to the memory of R.G. Gareev AU Udalova, E.. PY 2023 PB TRIA FRC Kazan Scientific Center of RAS