Effects of drought on the physiological parameters of fruit crops leaves

Development of the modern horticulture is impossible without studying adaptive capabilities crops cultivars and hybrids. Drought one major factors, which negatively influence on plants growth development in summer period. This stress factor results disruption photosynthetic apparatus, changing electron flux, facilitates accumulation free radicals. Activation plant defense systems can suppress oxidative stress. In this research, physiological biochemical characteristics leaves under drought different pear, plum cherry growing Krasnodar region during period were studied. It was found that driest month — august, majority state, resulted an increase malondialdehyde content. The greatest potential to noted pear Williams Flamenco, as well among there Volshebnitsa Sashenka. better resistance detected control cultivar Stenley According obtained data, it decrease chlorophylls content correlated with carotenoid contents.