Mobilization, replenishment and study of grapevine gene pool in Don Ampelographic Collection named aſter Ya.I. Potapenko: DOI 110.34919/IM.2022.24.3.002

Abstract

Field collections are the main method of conservation grapevine genetic diversity. Each viticultural region has its own unique local assortment. The objective of the work is to mobilize, replenish and study grapevine gene pool of various ecological and geographical origins in Ampelographic Collection in the Lower Don region. The place of research is the Don Ampelographic Collection named aſter Ya.I. Potapenko (Novocherkassk, Rostov region). The object of research is 116 varieties and forms of grapes during the period of observation and study in 2019-2021. The work on conservation, replenishment and study of grapevine gene pool is carried out in the Collection. Currently, the Сollection contains 875 grape varieties of various origins. Over the past 3 years, the Сollection has been replenished with 15 varieties. In total 18 grape varieties and forms under study with a high estimated cropping capacity were selected: ‘Vostorg’, ‘Grushevskiy Belyi’, ‘Rusmol’, ‘Tsvetochnyi’; ‘Bessergenevskiy No. 1’, ‘Bessergenevskiy No. 3’, ‘Bessergenevskiy No. 10’, ‘Bezimyannyi Donskoy’, ‘Shilohvostyi’; ‘Romulus’, ‘Megrabuyr’, ‘Hercules’, ‘Muscat Derbentskiy’, etc. The largest average bunch weight had 5 table varieties – ‘Bokalnyi Chernyi’, ‘Hercules’, ‘Rusmol’, ‘Oktyabrenok’, ‘Bart’. At tasting of table and seedless grapes, 12 varieties got the highest tasting scores: ‘Sublima Seedless’, ‘Arsenievskiy’, ‘Bogotyanovskiy’, ‘Roshfor’, ‘Zarya Nesvetaya’, ‘Talisman’, ‘Hercules’, ‘Muscat Derbentskiy’, etc. For micro-winemaking, 138 varietal samples were transferred. The varieties ‘Latsu Kere’, ‘Neizvestnyi Donskoy’, ‘Tsimlyanskiy Sergienko’, ‘Bessergenevskiy No. 7’, ‘Kosorotovskiy’, ‘Riesling Italianskiy’ were pointed out as promising for quality winemaking in the conditions of Lower Don region. According to the results of varietal study in the Collection, 8 local Don grape varieties were included in the Russian Federation Register in 2021-2022: ‘Kumshatskiy Belyi’, ‘Mushketnyi’, ‘Durman’, ‘Makhrovatchik’, ‘Tsimlyanskiy Belyi’, ‘Tsimladar’, ‘Efremovskiy’, ‘Bessergenevskiy No. 10’.