Ideotype Selection of Perennial Flax (Linum spp.) for Herbaceous Plant Habit Traits

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Abstract

(1) Background: Annual flax (Linum usitatissimum) and many wild relatives possess showy blue flowers and finely textured foliage. To promote the use of blue-flowered flax as ornamentals, an herbaceous perennial flax breeding program was initiated to develop ideotypes and test their effectiveness. The objectives of this study were to (a) compare traits of interest for herbaceous perennials in breeding populations (CF, oilseed) and accessions of annual/perennial species in a common garden; (b) quantify the impact of selection (direct, indirect) for traits of interest; (c) identify top candidate species for continued breeding using the herbaceous perennial flax crop ideotype; (2) Methods: Recorded traits, based on the perennial flax ideotype, included: flower diameter, flowering period, stem length and diameter, plant width and height, summer and winter survival; (3) Results: OS and CF populations had smaller stem diameters, longer flowering periods, larger plant size, more uniform growth, and improved winter survival compared to wild species. Linum austriacum was the top wild species for the CF breeding ideotype but comparable in performance with L. perenne for the herbaceous perennial flax ideotype; (4) Conclusions: The effect of 1–5 yrs. on selection for target/non-target traits in wild species for future R&D is exemplified with selection and release of an herbaceous/garden ornamental perennial flax for the market.

Original languageEnglish (US)
Article number3127
JournalAgronomy
Volume12
Issue number12
DOIs
StatePublished - Dec 2022

Bibliographical note

Funding Information:
This research was funded by the Minnesota Agricultural Experiment Station, project number MAES-21-100; the Forever Green Initiative, grant numbers 00071139, CON000000084498; the USDA-ARS Crop Germplasm Committee grant number CON000000085489 for funding this research.

Publisher Copyright:
© 2022 by the authors.

Keywords

  • cut flowers
  • herbaceous perennials
  • Linum austriacum
  • Linum lewisii
  • Linum perenne
  • oilseed

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