Abstract
The current findings concluded the reverse impacts of arsenic (As) stress on ten contrasting maize varieties (Malika 2016, Sahiwal 2002, Agaitti 2002, Pearl, Akbar, Pak Afghoi, Neelum, Pioneer, Sadaf, MMRI-Yellow). A pot experiment was designed to screen out the tolerant and susceptible maize varieties at Government College University Faisalabad. Genetic variability among the maize varieties explodes their individual coping traits either tolerant or sensitive against As accumulation. The exposure to different levels of As (50, 100 mg/kg) stress were examined. Application of As stress substantially decreased the growth attributes in all maize varieties. Arsenic also induced a significant decline in chlorophyll contents in all maize varieties, especially in sensitive varieties. Remarkable decrease was observed in growth and chlorophyll attributes, while increase was recorded in malondialdehyde (MDA), hydrogen peroxide (H 2 O 2 ), ascorbic acid (ASA), superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) activities. Results of current study show that variety Pearl of maize was more tolerant with minimum decrease in growth, while Akbar variety was more sensitive with maximum decrease in all growth attributes against As stress. Furthermore, maize varieties namely Neelum, Sahiwal, Poineer and Pak Afghoi also presented as tolerant varieties, while Sadaf, MMRI and Malika proved as moderately sensitive against As stress. The higher As tolerance of Pearl variety was associated with persistency to maintain higher growth and chlorophyll contents under As stress as compared to the other varieties.
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Claims 9
Claim · model-written summary
Arsenic stress substantially decreased growth attributes in all maize varieties.
- Treatment
- As stresse1
- Outcome
- growth attributese1
- Direction
- substantially decreasede1
- Setting
- pot experimente2
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ten contrasting maize varieties”
e1“Application of As stress substantially decreased the growth attributes in all maize varieties”
e2“A pot experiment was designed to screen out the tolerant and susceptible maize varieties”
Claim · model-written summary
Arsenic induced a significant decline in chlorophyll contents in all maize varieties, especially sensitive ones.
- Treatment
- Arsenice1
- Outcome
- chlorophyll contentse1
- Direction
- declinee1
- Qualifier
- especially in sensitive varietiese1
- Setting
- pot experimente2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ten contrasting maize varieties”
e1“Arsenic also induced a significant decline in chlorophyll contents in all maize varieties, especially in sensitive varieties”
e2“A pot experiment was designed to screen out the tolerant and susceptible maize varieties”
Claim · model-written summary
Arsenic stress increased malondialdehyde, hydrogen peroxide and ascorbic acid in maize.
- Treatment
- Arsenice1
- Outcome
- malondialdehyde (MDA), hydrogen peroxide (H 2 O 2 ), ascorbic acid (ASA)e3
- Direction
- increasee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ten contrasting maize varieties”
e1“Arsenic also induced a significant decline in chlorophyll contents in all maize varieties, especially in sensitive varieties”
e3“while increase was recorded in malondialdehyde (MDA), hydrogen peroxide (H 2 O 2 ), ascorbic acid (ASA)”
Claim · model-written summary
Arsenic stress increased superoxide dismutase, peroxidase and catalase activities in maize.
- Treatment
- Arsenice1
- Outcome
- superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) activitiese3
- Direction
- increasee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ten contrasting maize varieties”
e1“Arsenic also induced a significant decline in chlorophyll contents in all maize varieties, especially in sensitive varieties”
e3“while increase was recorded in malondialdehyde (MDA), hydrogen peroxide (H 2 O 2 ), ascorbic acid (ASA), superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) activities”
Claim · model-written summary
Maize variety Pearl was more tolerant to arsenic stress, with the minimum decrease in growth.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ten contrasting maize varieties”
e1“Results of current study show that variety Pearl of maize was more tolerant with minimum decrease in growth”
e2“Akbar variety was more sensitive with maximum decrease in all growth attributes against As stress”
Claim · model-written summary
Maize variety Akbar was more sensitive to arsenic stress, with the maximum decrease in all growth attributes.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ten contrasting maize varieties”
e2“Akbar variety was more sensitive with maximum decrease in all growth attributes against As stress”
Claim · model-written summary
Maize varieties Neelum, Sahiwal, Poineer and Pak Afghoi were presented as tolerant to arsenic stress.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ten contrasting maize varieties”
e1“maize varieties namely Neelum, Sahiwal, Poineer and Pak Afghoi also presented as tolerant varieties”
e2“while Sadaf, MMRI and Malika proved as moderately sensitive against As stress”
Claim · model-written summary
Maize varieties Sadaf, MMRI and Malika were presented as moderately sensitive to arsenic stress.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ten contrasting maize varieties”
e2“while Sadaf, MMRI and Malika proved as moderately sensitive against As stress”
Claim · model-written summary
The higher arsenic tolerance of Pearl was associated with maintaining higher growth and chlorophyll contents under arsenic stress than other varieties.
- Material
- Pearl varietye1
- Treatment
- As stresse1
- Outcome
- growth and chlorophyll contentse1
- Direction
- highere1
- Comparator
- the other varietiese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ten contrasting maize varieties”
e1“The higher As tolerance of Pearl variety was associated with persistency to maintain higher growth and chlorophyll contents under As stress as compared to the other varieties”
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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.