Study of horseradish varieties and accessions under the conditions of the north-west area of the Pskov Region

Abstract

Horseradish is a widespread vegetable root crop. However, there is practically no high-quality planting material throughout the country although the Pskov Region is well suited for growing this crop. The main way to increase horseradish yields is the development, study and implementation of highly marketable accessions with high-yielding rhizomes which are resistant to pests and diseases and are suitable for growing in this area. The research goal was to study horseradish varieties and accessions under the conditions of the north-west area of the Pskov Region. The research objectives included studying the morphological and biometric economic indices of horseradish and identifying the most adapted and productive accession. The research targets were the Tolpukhovskiy and Atlant varieties and some collection accessions. In the selection work on horseradish, individual clonal and mass selection procedures were used; the field trials were carried out according to the fundamental methodology. The data obtained underwent statistical processing using variance analysis. The productive and adaptive potentials were evaluated by the L.A. Zhivotkov method. The analysis of the obtained research findings on horseradish accessions under the conditions of the Pskov Region revealed that the accession Uvarovskiy No. 2.1 may be recommended for growing under the conditions of the north-west area of the Pskov Region. Fairly good indices were obtained regarding the morphology, biometrics and economic indices: the yields amounted to 14.8 t ha, marketability - 77%, and the adaptability coefficient was greater than unity and made 1.36-1.46.