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

28 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 - 1998

Fingerprint

Photosynthesis
cold tolerance
Zea mays
photosynthesis
Temperature
corn
temperature
Growth
Chlorophyll
cold stress
Fluorescence
fluorescence
chlorophyll

Keywords

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

ASJC Scopus subject areas

  • Plant Science

Cite this

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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.",
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T1 - Changes in photosynthesis in inbred maize lines with different degrees of chilling tolerance grown at optimum and suboptimum temperatures

AU - Janda, T.

AU - Szalai, G.

AU - Ducruet, J. M.

AU - Páldi, E.

PY - 1998

Y1 - 1998

N2 - 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.

AB - 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.

KW - Chlorophyll fluorescence

KW - Gas exchange

KW - Intercellular CO concentration

KW - Low temperature stress

KW - Stomatal conductance

KW - Zea mays

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