Evaluation of varieties of common hop (Humulus lupulus L.) collection according to agronomic traits

Abstract

The paper presents the results of 2018-2020 research on the study of 248 Russian and foreign varieties of the collection of common hop (Humulus lupulus L.) in order to identify promising ones with a complex of agronomic traits for developing new varieties adapted to the natural and climatic conditions of the hop-growing regions of the Russian Federation. The research was carried out in the conditions of the Chuvash Republic on dark gray forest heavy loamy soil. Sixty hop varieties in the early-ripening, mid-early and mid-ripening groups with the yields above 26.3 c/ha (weighing more than 3.5 kg of raw cones from one bush) were identified. High-yielding varieties prevailed in the mid-ripening group of the collection (67 %). The adaptability of the collection varieties to natural and climatic conditions was evaluated on the third, fourth and fifth years of the hop plantings (in three tabs). There have been identified six varieties, which in some years of growing exceeded the control variety Podvyazny according to adaptability coefficients (1.23-1.23-1.15): early-ripening English variety Golden Star (1.58-1.37-1.03); mid-early Russian variety Zvenigovsky (1.72-1.16-1.07); mid-ripening Russian variety Serebryanka Kalistovskaya (1.47-1.28-1.17), Guslitsky (1.50-1.26-1.23), Ukrainian Kruglyak-Seryak (1.76-1.44-1.18), Group 4 (1.80-1.80-1.31). The most consistently high results were shown by Group 4, Guslitsky, Kruglyak-Seryak. High-resinous varieties with a high content of alpha acids belonging to different types of hops were noted specifically. According to the complex of agronomic traits and resistance to false powdery mildew, 19 collection varieties have been identified.

3-year results of hop hybrids testing

“…/doi.org/10.1051/bioconf/20248401023 84 also become a food base for specialised pests of hops. Therefore, it is especially important to control these biotic factors in years characterised by abnormal weather, as they can significantly influence the results of the research.Seeds obtained from female hop plants of the Saxon, Marinka, Late Cluster, Porphyry and Plunscher varieties available in the World Variety Collection of the Institute[15] were used in the breeding process. Pollination took place either by random pollination (APaccidental pollination) or by a mixture of pollen from several varieties of male plants (PMpollen mixture).Description of the control varieties: Standard 1 (Podvyazny variety) -average yield 30.0 kg/ha, average alpha content 9.7 %.…”