Comparative assessment of the degree of damage to cell membranes of lentil samples of the VIR world collection of various ecological and geographical origin

Differences in the degree of damage to cell membranes in small-seeded and large-seeded (plate) varieties of lentils of the world collection of VIR named after V.I. N.I. Vavilov. An assessment of the relative drought resistance of lentils by determining the exosmosis of electrolytes from plant leaves made it possible to identify samples with the lowest cell membrane permeability as an indirect indicator of drought resistance. High resistance to "physiological drought" in laboratory conditions was noted in the following samples: 2021 - k-2872 (USA), k-2850 (Russia), k-1043 (Italy), k-2839 (Canada), k-2365 (Sweden), k-1964 (Ethiopia); 2022 - k-1850 (Armenia), k-2850 (Russia), k-2365 (Sweden). Therefore, it is purposeful to include samples k-2850 (Russia) and k-2365 (Sweden) as highly resistant in breeding programs to create a valuable initial material of lentils in the arid zones of the Russian Federation. Samples of lentils with increased adaptive potential are proposed. Keywords: LENTILS, COLLECTION, SAMPLE, EXOSMOSIS, DEGREE OF DAMAGE, CELL MEMBRANES