The primary assessment of the red oak seeds quality and prospects for its bioinvasive potential realization in the Samara region urban environment

The world population growth postulates a necessity for food increase to provide mankind with edible products. A growing number of archaeobotanical finds acorns indicates that they were important as staple some regions. According its characteristics, red oak is one the promising species can resource potential forests in Middle Volga region. Compared local one, wood more resistant vascular and necrotic-cancerous pathologies. also powdery mildew. On territory region, still rare, because limited use plantations. subject study quality seeds formed by trees from arboretum Institute Ecology Basin (Togliatti city), where collected an amount enough assess introduced on new it. internal structure dense shells was carried out digital microfocus radiography using PRDU installation. This method included international standards, primarily assessing formation grain damage phytophages. X-ray screening allowed categorize seeds: 1) seeds, fully formed, filled not damaged insects; 2) that, when falling tree, retain their cupula (do have developed content); 3) insects during cotyledons; 4) without cupula, but varying severity underdevelopment; 5) partial underdevelopment cotyledons, which do fill entire volume seed coats. weight size parameters Samara region correspond indicators other regions are: diameter 1,76 0,01 cm; length 2,48 0,02 1000 4224 62,65 g (harvest 2021). At same time, only 55 39% (harvests 2021 2022, respectively) sufficiently high be used sowing. Considering prospects agent biological invasion, authors point variability harvest years, proportion low-quality well small self-seedings increased demands soil moisture.