Abstract
Excessive cadmium (Cd) content in soil leads to a number of phytotoxic effects and challenges agricultural production. Aim of this study was to investigate different responses of two maize inbreds and their hybrid to an elevated Cd content in soil by measuring photosynthetic and biochemical activity and to identify a Cd tolerance mechanism. Antioxidant statusrelated parameters varied significantly between inbreds and treatments. Dry mass increased in both inbreds, but remained unchanged in hybrid. After the Cd treatment, parameters of chlorophyll a fluorescence varied between inbreds and hybrid performance was similar to inbred B84. We concluded that inbred B84 is Cd-sensitive compared to Os6-2, which did not appear to be negatively affected by Cd treatment at this growth stage studied. We suspect that due to a dilution effect in the hybrid, there was no or very weak Cd stress detected by biochemical parameters, although stress was detected by chlorophyll a fluorescence.
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Claims 8
Claim · model-written summary
Antioxidant status parameters varied significantly between maize inbreds and treatments.
- Outcome
- Antioxidant statusrelated parameterse0
Zea maysNot reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize inbreds and their hybrid”
e0“Antioxidant statusrelated parameters varied significantly between inbreds and treatments.”
Claim · model-written summary
Dry mass increased in both maize inbreds after cadmium treatment.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize inbreds and their hybrid”
e0“Dry mass increased in both inbreds, but remained unchanged in hybrid.”
e1“Excessive cadmium (Cd) content in soil”
Claim · model-written summary
Dry mass remained unchanged in the maize hybrid.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize inbreds and their hybrid”
e0“Dry mass increased in both inbreds, but remained unchanged in hybrid.”
e1“Excessive cadmium (Cd) content in soil”
Claim · model-written summary
After cadmium treatment, chlorophyll a fluorescence parameters varied between maize inbreds.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize inbreds and their hybrid”
e0“After the Cd treatment, parameters of chlorophyll a fluorescence varied between inbreds and hybrid performance was similar to inbred B84.”
Claim · model-written summary
The maize hybrid performed similarly to inbred B84 in chlorophyll a fluorescence parameters after Cd treatment.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize inbreds and their hybrid”
e0“After the Cd treatment, parameters of chlorophyll a fluorescence varied between inbreds and hybrid performance was similar to inbred B84.”
Claim · model-written summary
The authors judged inbred B84 more cadmium-sensitive than Os6-2 at the studied growth stage.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize inbreds and their hybrid”
e0“We concluded that inbred B84 is Cd-sensitive compared to Os6-2, which did not appear to be negatively affected by Cd treatment at this growth stage studied.”
Claim · model-written summary
Os6-2 did not appear negatively affected by Cd treatment at the studied growth stage.
- Material
- Os6-2e0
- Treatment
- Cd treatmente0
- Outcome
- negatively affectede0
- Qualifier
- at this growth stage studiede0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize inbreds and their hybrid”
e0“Os6-2, which did not appear to be negatively affected by Cd treatment at this growth stage studied.”
Claim · model-written summary
In the hybrid, biochemical parameters showed no or very weak Cd stress, although chlorophyll a fluorescence detected stress.
- Material
- hybridt0
- Outcome
- Cd stress detected by biochemical parameterse0
- Qualifier
- although stress was detected by chlorophyll a fluorescencee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize inbreds and their hybrid”
e0“there was no or very weak Cd stress detected by biochemical parameters, although stress was detected by chlorophyll a fluorescence.”
The same questions in other papers
cadmium atom · growth · Zea mays (maize)Results differ
10 papers in the same direction as this paper · 85 in the opposite direction
- positive
- negative
- negative
92 papers more in this group
See all 96 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.