Mobilization Of Genetic Resources Of Hyssopus Officinalis L. For Selection For Seed Productivity And Essential Oil Content

Abstract

Abstract We studied 52 varieties and breeding samples from the collection of medicinal hyssop in the Botanical Garden of Belgorod State University (2017-2020). Of these, 16 varieties of domestic selection included in the State Register of Breeding Achievements approved for use in the Russian Federation, as well as 33 breeding samples obtained by selection from wild cenopopulations of the Volokonovsky district of the Belgorod region and 3 breeding samples obtained by selection from local selection varieties ‘Volokonovsky’ (2 samples) and ‘Lazar’ (1 sample). As a standard for the evaluation of varieties and breeding samples in the collection nursery, the variety ‘Volokonovsky [[CHECK_SINGLEQUOT_ENT]] was selected. The research was carried out in the framework of joint research programs with the federal research centers of the Russian Academy of Sciences: Williams Research Center for Forage Production & Agroecology, All-Russian Research Institute of Phytopathology. From the forms of various ecological and geographical origin, 11 breeding samples were identified: 2 varieties (‘Volokonovsky’-CPI – 114, ‘Lazar’-CPI – 126), and 9 selections from natural populations and varieties (CPI-03, CPI-04, CPI-28, CPI-29, CPI-30, CPI-31, CPI-32, CPI-33, CPI-34), which have a complex of useful features: long flowering (56-62 days), bush height-50-67 cm and dense structure of bushes; leafiness at the level of 60-67%. They are highly productive: the dry matter yield is 3.5-4.4 kg / m2, the seed yield is 30.1-45.4 g*(m) −2. At the same time, two breeding samples have a high level of essential oil content: CPI-33 – 0.67%, CPI-34 – 0.61%, which allows us to consider them as a source material for selection on this basis.