EX VITRO ADAPTATION OF REMONTANT RASPBERRY VARIETIES

Abstract

The studies were carried out in the Biotechnology department of the RUE “Institute of Fruit Growing” in 2019–2020. Three samples of remontant raspberry – the Heracles (control), Heritage (control) and Verasnevaya varieties are the key-focus of the research.
 Studies on the adaptation of regenerated plants of raspberry varieties on the studied substrates have showed that the
 proportion of adapted plants ranged from 70 to 100 %, with the exception of a mixture of peat “Florabel-5” with agroperlite
 3:1 for the Heracles variety – 56.67 %. The use of the agroperlite substrate made it possible to obtain 100 % adaptation of the
 plants of the studied control varieties (Heracles and Heritage) and the Verasnevaya variety. The use of Dvina peat, both in pure form and in a mixture with agroperlite 3:1 made it possible to obtain not less than 93.33–96.67 %. According to a set of indicators (shoot length, number and length of roots), the best substrate for the adaptation of regenerated plants of the Verasnevaya variety was the use of peat “Dvina” and “Florabel-5” in its pure form and mixed with agroperlite 3:1. The best substrates for adaptation for the Heracles variety was the use of peat “Florabel-5” in its pure
 form and mixed with agroperlite 3:1, as well as peat “Dvina” in its pure form. As for the Heritage variety the best substrates
 for adaptation was the use of peat “Florabel-5” in its pure form, peat “Dvina” in its pure form and mixed with agroperlite 3:1.