Frost resistance of 'Chinese spring'/'Cheyenne' chromosome substitution lines under short- and long-day hardening conditions

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Investigations were carried out under phytotronic conditions to study the effect of daylength on the frost resistance of a 'Chinese Spring'/'Cheyenne' chromosome substitution series. The frost resistance of the 5A, 7A, 4B, 5B, 1D and 5D lines was significantly better when raised and hardened with long-day (16h) rather than short-day (8h) illumination. The frost resistance-increasing effect of daylength could be demonstrated after freezing lines 5A and 5D at both -10°C and -12°C. An increase in the duration of illumination in the course of preliminary growth and hardening promoted the development of a higher level of frost resistance. This positive effect was most pronounced for chromosome substitution lines, where the frost resistance was significantly better than that of 'Chinese Spring' even with normal day-lengths.

Original languageEnglish
Pages (from-to)93-94
Number of pages2
JournalPlant Breeding
Volume117
Issue number1
DOIs
Publication statusPublished - Mar 1998

Keywords

  • Daylength
  • Frost resistance
  • Hardening
  • Substitution series
  • Triticum aestivum

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Genetics
  • Plant Science

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