Ethanol resistance as a way to evaluate the stability of leaf cell membranes of cynodon (Cynodon dactylon) and four wheat genotypes, significantly different in drought resistance and leaf shape

Abstract

The stability of leaf cell membranes is one of the factors on which the resistance of agricultural crops to the abiotic factors of the environment depends. Ethanol, as a very good solvent of lipids and highly damaging to cell membranes, was used to test the membrane stability of leaf cells of cynodon (Cynodon dactylon) and four genotypes of wheat. The membranes of the cynodon leaf cells are the most resistant. A concentration of 15% ethanol was chosen as the most suitable for testing the wheat genotypes. Of the wheat genotypes, the leaf cells of Katya and Enola have the greatest membrane stability and small leaf dissection index (LDI). The rates of damage to leaf cell membranes are constant in the cynodon and the Katya genotype, while in the other genotypes they increase exponentially.  Genotype of the modern selection Prelom has a small LDI and the most unstable membranes.