Cereal Research Communications

, Volume 34, Issue 2–3, pp 1037–1042 | Cite as

Evaluation of freezing tolerance in advanced progeny from a cross of Avena sativa X A. macrostachya

  • Hongmei Jia
  • David P. LivingstonIII
  • J. Paul MurphyEmail author
  • David R. Porter


Avena macrostachya is a perennial, autotetraploid oat. In its natural habitat it has a high degree of winter hardiness. The objective of this experiment was to screen 53 backcross progenies of an interspecific cross between the cultivar Brooks (A. sativa) and A. macrostachya using a controlled freezing test. No entry tested was more freezing tolerant than the recurrent parent Brooks. These results indicated that freeze tolerance from A. macrostachya had not been introgressed into the progeny. It was suggested that the mechanism for winter hardiness in A. macrostachya is different from that in A. sativa and may involve an escape mechanism rather than a genetically controlled freezing resistance mechanism.

Key Words

Avena macrostachya A. sativa winter hardiness freezing tolerance perennial oat 


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Copyright information

© Akadémiai Kiadó, Budapest 2006

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  • Hongmei Jia
    • 1
  • David P. LivingstonIII
    • 2
  • J. Paul Murphy
    • 3
    Email author
  • David R. Porter
    • 4
  1. 1.BASF Plant ScienceCharlotteUSA
  2. 2.USDA and North Carolina State UniversityRaleighUSA
  3. 3.North Carolina State UniversityCharlotteUSA
  4. 4.USDA Agricultural Research CenterStillwater, OklahomaUSA

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