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PECULIARITIES OF THE DEVELOPMENT OF EXPLANTS RUBUS IDAEUS L. AND RIBES NIGRUM L. PROMISING VARIETIES OF BREEDING OF FEDERAL RESEARCH CENTER FOR HORTICULTURE AT THE STAGE OF INTRODUCTION TO CULTURE IN VITRO

https://doi.org/10.31676/2073-4948-2020-63-44-52

Abstract

The results of studies of the peculiarities of development of raspberry (Rubus idaeus L.) and black currant (Ribes nigrum L.) explants at the stage of in vitro culture introduction are presented. Analysis of the data obtained allows us to conclude that the most effective sterilization mode for raspberry explants is a 7 % sodium hypochlorite solution with an exposure of 16 minutes, and for black currants is a 5 % lysoformin solution with an exposure of 20 minutes. The survival rate of raspberry explants varied within 62.5–100.0 %, black currant — 66.7–100.0 %, depending on the variety. A greater percentage of the established black currant explants was noted in the varieties ‘Mif’ and ‘Gamayun’, raspberries — ‘Skromnitsa’, ‘Beglyanka’, ‘Gerakl’, ‘Gusar’, ‘Solnyshko’, ‘Meteor’ and ‘Kirzhach’. Modification of nutrient media with cytokinins at the stage of introduction into culture affects the subsequent development of explants. Studies examined the effect of growth regulators of a cytokinin nature: 6–benzylaminopurine, thidiazuron and kinetin. Raspberry varieties ‘Gerakl’, ‘Peresvet’ and ‘Solnyshko’, cultivated on a nutrient medium supplemented with kinetin at a concentration of 0.5 mg/l, had a microshoot length of 14.0; 9.0 and 12.5 mm, respectively. It was more effective to add of 6–BAP and thidiazuron to the culture media for the ‘Skromnitsa’ and ‘Gusar’ varieties. In these variants, the length of micro-shoots was 12.8 and 11.0 mm for the ‘Skromnitsa’ variety, and 14.0 and 11.4 mm for the ‘Gusar’ variety, respectively. Characterizing the peculiarities of development of blackcurrant explants, it was noted that for the varieties ‘Charodey’, ‘Barmaley’ and ‘Mif’ kinetin had a greater stimulating effect on growth processes. The greater parameter of the length of micro-shoots was 16.7 and 12.5 mm in the black currant varieties ‘Charodey’ and ‘Mif’, respectively. The general assessment of the data obtained on the study of the effect of sterilizing substances and modifications of nutrient media based on cytokinins of various natures when berry crops are introduced into in vitro culture suggests that the variety characteristics of plants have a significant effect on the regenerative capacity of raspberry and black currant explants.



About the Authors

O. V. Vershinina
Federal Horticultural Research Center for Breeding, Agrotechnology and Nursery
Russian Federation
Moscow



I. A. Bjadovskiy
Federal Horticultural Research Center for Breeding, Agrotechnology and Nursery
Russian Federation
Moscow



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For citations:


Vershinina O.V., Bjadovskiy I.A. PECULIARITIES OF THE DEVELOPMENT OF EXPLANTS RUBUS IDAEUS L. AND RIBES NIGRUM L. PROMISING VARIETIES OF BREEDING OF FEDERAL RESEARCH CENTER FOR HORTICULTURE AT THE STAGE OF INTRODUCTION TO CULTURE IN VITRO. Pomiculture and small fruits culture in Russia. 2020;63(1):44-52. (In Russ.) https://doi.org/10.31676/2073-4948-2020-63-44-52

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