Ранняя диагностика сортов черной смородины (Ribes nigrum L.) на устойчивость к мучнистой росе (Sphaerotheca mors-uvae (Schw) Berk. et Gurt)

Abstract

For the first time in the conditions of Belarus, the anatomical peculiarities of the black currants leaf of Belarusian selection were studied in connection to the resistance to powdery mildew in the dynamics of three age groups of plants according to 20 anatomical signs. The connection between the anatomical peculiarities of the black currants leaf structure and resistance to powdery mildew was investigated and analysed, the anatomical criteria of black currants resistance to an agent of powdery mildew were shown with the help of different variants of statistic processing. The anatomical method of early diagnostics of resistance to powdery mildew of black currants sorts, based on the dependence of the development of disease on the sizes of stoma in low epidermis and low epidermis thickness of the black currants leaf, was developed for the first time in the world practice.