Fruit growing
and viticulture of South Russia

Annotation

Research purpose was studying of susceptibility to suntan of fruits of apple varieties various on resistance to a disease when their separate and joint storage in UA, MA and RA with 1-MMP processing and without one, the identification of objective biochemical indicators of the forecast of suntan development. Objects of research are the apple - fruits of Martovskoe, Bogatyr, Zhigulevskoe and others. The considered varieties differ on susceptibility degree to suntan. Biochemical research are carried out in the laboratory of Institute department of the postharvest technologies. Studying of influence of joint and separate storage of fruits with various susceptibility to suntan on their resistance to a disease under the conditions of OA and RA was carried out also in the basic farms of Institute. The influence of joint storage in OA, MA, RA of fruits of various apple-tree varieties on suntan development is established. Under the conditions of limited external air exchange (MA, RA) the excess accumulation of volatile compounds, including α-farnezen, stimulates the development of fruits suntan. The susceptible varieties, which initiate a suntan both at themselves, and at fruits of other varieties at joint storage, differ in higher intensity of biosynthesis of low-volatile compounds including α-farnezen. It is noted that the perspective direction of further research is studying of influence of the content of volatile compounds (including α- farnezen) not only in the fruits, but also in the atmosphere of storage, on development of physiological diseases (including suntan) of apple fruits and development of methods for removal of volatile compounds until the safe concentrations.