Abstract
Abstract The aim of this study was to determine the effects of sodium selenate (15, 30, 45, 60, 75, 90, and 105 mg kg −1 ) on the germination and seedling growth of Changnongjing 1 rice ( Oryza sativa L.) at 25 °C and 30 °C. Low selenate concentrations induced shorter and more uniform germination periods than did ultrapure water at both temperatures. Seedlings primed with low selenate concentrations were superior to those primed with ultrapure water in terms of plant height, fresh weight, dry matter accumulation, and soluble carbohydrate and protein contents. Lower selenate concentrations (15–75 mg kg −1 ) induced higher chlorophyll and phenol contents in seedlings than did ultrapure water. Lower selenate concentrations also increased the superoxide dismutase (SOD), peroxidase (POX), catalase (CAT), and glutathione peroxidase (GPx) contents in seedlings and significantly decreased the stress-related malondialdehyde (MDA) content compared to ultrapure water. In conclusion, rice seedling germination and growth were promoted by priming with low selenate concentrations (15–75 mg kg −1 ) but inhibited by priming with high selenate concentrations (90–105 mg kg −1 ).
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Claims 9
Claim · model-written summary
Low selenate shortened germination periods versus water at both temperatures.
- Taxon
- rice
Oryza sativat0 - Treatment
- Low selenate concentrationse0
- Outcome
- germination periodse0
- Direction
- shortere0
- Qualifier
- both temperaturese0
- Comparator
- ultrapure watere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low selenate concentrations induced shorter and more uniform germination periods than did ultrapure water at both temperatures”
t0“Rice”
t1“Rice”
Claim · model-written summary
Low selenate made germination periods more uniform.
- Taxon
- riceOryza sativat0
- Treatment
- Low selenate concentrationse0
- Outcome
- germination periodse0
- Direction
- more uniforme0
- Comparator
- ultrapure watere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low selenate concentrations induced shorter and more uniform germination periods than did ultrapure water at both temperatures”
t0“Rice”
t1“Rice”
Claim · model-written summary
Low selenate improved plant height, fresh weight and dry matter accumulation.
- Taxon
- riceOryza sativat0
- Treatment
- low selenate concentrationse0
- Outcome
- plant height, fresh weight, dry matter accumulatione0
- Direction
- superiore0
- Comparator
- ultrapure watere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seedlings primed with low selenate concentrations were superior to those primed with ultrapure water in terms of plant height, fresh weight, dry matter accumulation”
t0“Rice”
t1“Rice”
Claim · model-written summary
Low selenate improved soluble carbohydrate and protein contents.
- Taxon
- riceOryza sativat0
- Treatment
- low selenate concentrationse1
- Outcome
- soluble carbohydrate and protein contentse0
- Direction
- superiore1
- Comparator
- ultrapure watere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soluble carbohydrate and protein contents”
t0“Rice”
t1“Rice”
e1“Seedlings primed with low selenate concentrations were superior to those primed with ultrapure water in terms of plant height, fresh weight, dry matter accumulation, and soluble carbohydrate and protein contents”
Claim · model-written summary
Selenate at 15–75 mg kg −1 increased chlorophyll and phenol contents.
- Taxon
- riceOryza sativat0
- Treatment
- Lower selenate concentrations (15–75 mg kg −1 )e0
- Outcome
- chlorophyll and phenol contentse0
- Direction
- highere0
- Comparator
- ultrapure watere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lower selenate concentrations (15–75 mg kg −1 ) induced higher chlorophyll and phenol contents in seedlings than did ultrapure water”
t0“Rice”
t1“Rice”
Claim · model-written summary
Lower selenate increased SOD, POX, CAT and GPx contents.
- Taxon
- riceOryza sativat0
- Treatment
- Lower selenate concentrationse0
- Outcome
- superoxide dismutase (SOD), peroxidase (POX), catalase (CAT), and glutathione peroxidase (GPx) contentse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lower selenate concentrations also increased the superoxide dismutase (SOD), peroxidase (POX), catalase (CAT), and glutathione peroxidase (GPx) contents in seedlings”
t0“Rice”
t1“Rice”
Claim · model-written summary
Lower selenate significantly decreased seedling MDA content versus water.
- Taxon
- riceOryza sativat0
- Treatment
- Lower selenate concentrationse1
- Outcome
- stress-related malondialdehyde (MDA) contente0
- Direction
- decreasede0
- Comparator
- ultrapure watere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly decreased the stress-related malondialdehyde (MDA) content compared to ultrapure water”
t0“Rice”
t1“Rice”
e1“Lower selenate concentrations also increased the superoxide dismutase (SOD), peroxidase (POX), catalase (CAT), and glutathione peroxidase (GPx) contents in seedlings and significantly decreased the stress-related malondialdehyde (MDA) content compared to ultrapure water”
Claim · model-written summary
Low selenate at 15–75 mg kg −1 promoted rice seedling germination and growth.
- Taxon
- riceOryza sativae0
- Treatment
- priming with low selenate concentrations (15–75 mg kg −1 )e0
- Outcome
- seedling germination and growthe0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice seedling germination and growth were promoted by priming with low selenate concentrations (15–75 mg kg −1 )”
Claim · model-written summary
High selenate at 90–105 mg kg −1 inhibited rice seedling germination and growth.
- Taxon
- riceOryza sativat0
- Treatment
- priming with high selenate concentrations (90–105 mg kg −1 )e0
- Outcome
- seedling germination and growthe1
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inhibited by priming with high selenate concentrations (90–105 mg kg −1 )”
t0“Rice”
t1“Rice”
e1“rice seedling germination and growth were promoted by priming with low selenate concentrations (15–75 mg kg −1 )”
The same questions in other papers
selenate · physiology: oxidative · Oryza sativa (rice)Results differ
1 in the opposite direction
- negative
selenate · physiology: pigments · Oryza sativa (rice)Positive and negative results
1 in the opposite direction
- negative
selenate · growth · Oryza sativa (rice)Results agree
2 papers in the same direction as this paper
- positive
- positive
seed treatment · growth · Oryza sativa (rice)Positive and negative results
229 papers in the same direction as this paper · 15 in the opposite direction
- positive
- positive
- positive
241 papers more in this group
See all 245 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.