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High stability of genotypic differences in puncture resistance of sugar beet (Beta vulgaris) roots under various growing conditions

  • Autor/in: Nause, N., A. Tossens, H. Tschoep, C.M. Hoffmann
  • Jahr: 2021
  • Zeitschrift: Plant Breeding 141
  • Seite/n: 88-95, DOI: 10.1111/pbr.12988
  • Stichworte: dry matter content, genotypic differences, glasshouse and field study, puncture resistance, sugar beet (Beta vulgaris L.), tissue strength

Abstract

Mechanical properties of sugar beet roots are related to their damage susceptibility and storability. For selection in breeding, it is beneficial to identify stable traits that can be measured in young plants. Ten genotypes, nine sugar beet and one fodder beet, were grown in the field (harvest in August and November) and in the glasshouse for 14 weeks. The puncture resistance was measured using a texture analyser. Furthermore, the dry matter content was determined. Genotypic differences in puncture resistance of sugar beet roots could be determined in early growth stages and showed no relevant interaction to environment/growing conditions. The puncture resistance was closely related to the dry matter content of the root. Genotypic differences in puncture resistance are independent of growing conditions (field/glasshouse) and age of the plants (harvest date/growth stage). Puncture resistance is thus a potential trait for selection of genotypes with a high tissue strength. The dry matter content was identified as an easy-to-measure parameter for the preselection of genotypes.
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