New parthenocarpic cucumber hybrids tolerant to downy mildew

Research work was carried out in the State University "Transnistrian Research Institute of agriculture" in film greenhouses (spring-summer and summer turnover) and in the open field on the trellis. The aim of the work is to study the source material and create promising lines of cucumber with high parthenocarpic ability, yield and resistance to downy mildew to obtain on their basis heterosis hybrids of cucumber of universal type for various crop rotations. To achieve this goal in 2013-2017 the following tasks were identified: to study the collection samples and to identify the most resistant to downy mildew; to evaluate the source material and select the stable forms; to study the combinational ability of the main features and properties of the parent forms of cucumber hybrids (parthenocarpy, yield, disease resistance); to study the variability and inheritance of the main useful features and properties; to test promising cucumber hybrids for economically valuable traits and properties...