Nomenclatural standards of spring barley cultivars bred by the Volga Scientific Research Institute of Selection and Seed-Growing named after P.N. Konstantinov

Abstract

The article discusses the cultivars of spring two-row barley ‘Povolzhsky 22’, ‘Povolzhsky 49’, ‘Povolzhsky Yantar’, and ‘Povolzhsky Priz’ bred by the Volga Scientific Research Institute of Selection and Seed-Growing named after P.N. Konstantinov, a branch of the Samara Federal Research Center of the Russian Academy of Sciences. The article describes the morphological, biological and economic characteristics of the cultivars. To prepare herbarium specimens of nomenclatural standards, plant material of cultivars ‘Povolzhsky 22’, ‘Povolzhsky 49’, and ‘Povolzhsky Yantar’ was used. These cultivars are represented by one herbarium sheet each and duplicated by 2, 1 and 3 sheets, respectively. A herbarium specimen of cultivar ‘Povolzhsky Priz’ has also been prepared, although State Variety Testing of the cultivar was not completed in 2023. This herbarium specimen will be registered as the nomenclatural standard of the cultivar when the latter will be included in the State Register.All herbarium specimens include whole plants at the milky ripeness stage, ears at the waxy ripeness stage, and grain samples. Appropriate plants were collected in Pushkin, in the fields of the “Pushkin and Pavlovsk Laboratories of VIR” (St. Petersburg), and ears and grains were obtained from the Volga Scientific Research Institute of Selection and Seed-Growing named after P.N. Konstantinov (Samara Province).All materials used for preparing herbarium specimens of a cultivar are the offspring of plants obtained as a result of individual family selection. Herbarium specimens of nomenclatural standards, their duplicates and herbarium specimens of cultivar ‘Povolzhsky Priz’ were prepared in accordance with the recommendations of the International Code of Nomenclature of Cultivated Plants (ICNCP), registered in the VIR Herbarium database and transferred to the Herbarium of Cultivated Plants of the World, their Wild Relatives and Weeds (WIR) at the National Center for Plant Genetic Resources.