Abstract
The effect of irradiance on the ratio of variable to maximum fluorescence (Fv/Fm) and on the anthocyanin content of chilled (0.5 °C) young maize plants was investigated after returning the plants to a non-chilling temperature (25 °C). Compared to control plants grown throughout at 25 °C in the light, the Fv/Fm hardly changed during chilling or when returned to a non-chilling temperature in the dark, but there was a decrease in this parameter if the plants were shifted to the light after the cold treatment. Similarly, compared to the control plants there was no change in the anthocyanin content either at low temperature or after transfer to 25 °C in the dark. However, there was a sudden increase in the anthocyanin level after returning the plants from dark cold conditions to a non-chilling temperature in the light.
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Claims 2
Claim · model-written summary
Fv/Fm of chilled maize plants decreased when plants were shifted to the light after the cold treatment, compared with controls grown at 25 degrees; it hardly changed in the dark.
- Treatment
- shifted to the light after the cold treatmente2
- Outcome
- Fv/Fme3
- Direction
- decreasee2
- Comparator
- control plantse1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chilled maize plants”
e1“Compared to control plants grown throughout at 25”
e2“there was a decrease in this parameter if the plants were shifted to the light after the cold treatment”
e3“the Fv/Fm hardly changed during chilling”
Claim · model-written summary
Anthocyanin level in maize suddenly increased after plants were returned from dark cold conditions to a non-chilling temperature in the light.
- Treatment
- returning the plants from dark cold conditions to a non-chilling temperature in the lighte1
- Outcome
- anthocyanin levele1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chilled maize plants”
e1“there was a sudden increase in the anthocyanin level after returning the plants from dark cold conditions to a non-chilling temperature in the light”
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