Changes in photosynthesis in inbred maize lines with different degrees of chilling tolerance grown at optimum and suboptimum temperatures

T. Janda, G. Szalai, J. M. Ducruet, E. Páldi

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

The effects of growth temperature on changes in net photosynthetic rate (P(N)) and the chlorophyll fluorescence induction parameter F(v)/F(m) were investigated after cold stress in inbred maize Fines with different degrees of cold tolerance. There was no significant difference between lines grown at optimum temperatures of 25/23 and 20/18 °C as regards P(N) and F(v)/F(m) determined at the growth temperature, but these parameters were lower for plants grown at a suboptimum temperature of 15/13 °C. After cold treatment, the decrease in P(N) was more pronounced in chilling-sensitive lines. The higher the growth temperature was, the more pronounced decrease occurred in P(N) and F(v)/F(m). Thus at low growth temperature both damaging and adaptive processes occur.

Original languageEnglish
Pages (from-to)205-212
Number of pages8
JournalPhotosynthetica
Volume35
Issue number2
DOIs
Publication statusPublished - Dec 1 1998

Keywords

  • Chlorophyll fluorescence
  • Gas exchange
  • Intercellular CO concentration
  • Low temperature stress
  • Stomatal conductance
  • Zea mays

ASJC Scopus subject areas

  • Physiology
  • Plant Science

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