Abstract
NaCl stress is one of the most serious forms of salt stress. Prohexadione–calcium (EA) is a plant growth regulator, and gibberellin (GA) is a plant hormone that regulates various plant developmental processes. In this experiment, Guanghong 3 and Huang Huazhan served as experimental rice (Overza sativa L.) varieties to study the effects of EA and GA on the growth of rice seedlings. The results revealed that NaCl treatment significantly inhibited plant growth and destroyed the balance of the carbon metabolism. The inhibition effect of NaCl stress on the growth and physiological metabolism of rice seedlings was alleviated by EA and GA, but the effects of EA and GA were slightly different. Compared with the NaCl treatment, the EA and GA treatments significantly increased the net photosynthetic rate, stem base width, and dry matter accumulation but had opposite effects on the plant height, with the GA treatment significantly increasing the plant height of rice seedlings. The EA treatment was superior to the GA treatment in improving the metabolic pathway efficiency of sucrose and starch in the leaves of rice seedlings. The soluble sugar content, sucrose content, fructose content, sucrose synthase activity, sucrose phosphate synthase activity, α-amylase activity, β-amylase activity, and starch phosphorylase activity increased with increasing NaCl stress time, and the changes in the starch content and acid invertase activity were the opposite. The max/min values were reached on the 13th day of NaCl stress.
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Claims 12
Claim · model-written summary
NaCl stress significantly inhibited rice seedling growth.
- Taxon
- Rice Seedlings
Oryza sativat0 - Treatment
- NaCl treatmente0
- Outcome
- plant growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl treatment significantly inhibited plant growth”
t0“Rice Seedlings”
Claim · model-written summary
NaCl stress destroyed the balance of carbon metabolism in rice seedlings.
- Taxon
- Rice SeedlingsOryza sativat0
- Treatment
- NaCl treatmente0
- Outcome
- the balance of the carbon metabolisme1
- Direction
- destroyede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NaCl treatment significantly inhibited plant growth”
e1“destroyed the balance of the carbon metabolism”
t0“Rice Seedlings”
Claim · model-written summary
EA treatment increased net photosynthetic rate, stem base width and dry matter accumulation compared with NaCl treatment.
- Taxon
- Rice SeedlingsOryza sativat0
- Treatment
- EAe2
- Outcome
- net photosynthetic rate, stem base width, and dry matter accumulatione2
- Direction
- increasede2
- Comparator
- NaCl treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Compared with the NaCl treatment, the EA and GA treatments significantly increased the net photosynthetic rate, stem base width, and dry matter accumulation but had opposite effects on the plant height”
t0“Rice Seedlings”
Claim · model-written summary
GA treatment increased net photosynthetic rate, stem base width and dry matter accumulation compared with NaCl treatment.
- Taxon
- Rice SeedlingsOryza sativat0
- Treatment
- GAe2
- Outcome
- net photosynthetic rate, stem base width, and dry matter accumulatione2
- Direction
- increasede2
- Comparator
- NaCl treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Compared with the NaCl treatment, the EA and GA treatments significantly increased the net photosynthetic rate, stem base width, and dry matter accumulation but had opposite effects on the plant height”
t0“Rice Seedlings”
Claim · model-written summary
GA treatment significantly increased plant height of rice seedlings compared with NaCl treatment.
- Taxon
- Rice SeedlingsOryza sativat0
- Treatment
- GA treatmente3
- Outcome
- plant heighte3
- Direction
- increasinge3
- Comparator
- NaCl treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“with the GA treatment significantly increasing the plant height of rice seedlings”
e2“Compared with the NaCl treatment, the EA and GA treatments significantly increased the net photosynthetic rate, stem base width, and dry matter accumulation but had opposite effects on the plant height”
t0“Rice Seedlings”
Claim · model-written summary
EA and GA had opposite effects on plant height of rice seedlings.
- Taxon
- Rice SeedlingsOryza sativat0
- Treatment
- EA and GA treatmentse2
- Outcome
- plant heighte2
- Comparator
- NaCl treatmente2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Compared with the NaCl treatment, the EA and GA treatments significantly increased the net photosynthetic rate, stem base width, and dry matter accumulation but had opposite effects on the plant height”
t0“Rice Seedlings”
Claim · model-written summary
EA treatment was superior to GA treatment in improving sucrose and starch metabolic pathway efficiency in rice seedling leaves.
- Taxon
- Rice SeedlingsOryza sativat0
- Organ / stage
- leavese4
- Treatment
- EAe4
- Outcome
- metabolic pathway efficiency of sucrose and starche4
- Direction
- superiore4
- Comparator
- GA treatmente4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The EA treatment was superior to the GA treatment in improving the metabolic pathway efficiency of sucrose and starch in the leaves of rice seedlings”
t0“Rice Seedlings”
Claim · model-written summary
Soluble sugar, sucrose and fructose contents increased with increasing NaCl stress time.
- Taxon
- Rice SeedlingsOryza sativat0
- Treatment
- NaCl stress timee5
- Outcome
- soluble sugar content, sucrose content, fructose contente5
- Direction
- increasede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“The soluble sugar content, sucrose content, fructose content, sucrose synthase activity, sucrose phosphate synthase activity, α-amylase activity, β-amylase activity, and starch phosphorylase activity increased with increasing NaCl stress time”
t0“Rice Seedlings”
Claim · model-written summary
Sucrose synthase, sucrose phosphate synthase and α-amylase activities increased with increasing NaCl stress time.
- Taxon
- Rice SeedlingsOryza sativat0
- Treatment
- NaCl stress timee5
- Outcome
- sucrose synthase activity, sucrose phosphate synthase activity, α-amylase activitye5
- Direction
- increasede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“The soluble sugar content, sucrose content, fructose content, sucrose synthase activity, sucrose phosphate synthase activity, α-amylase activity, β-amylase activity, and starch phosphorylase activity increased with increasing NaCl stress time”
t0“Rice Seedlings”
Claim · model-written summary
β-amylase and starch phosphorylase activities increased with increasing NaCl stress time.
- Taxon
- Rice SeedlingsOryza sativat0
- Treatment
- NaCl stress timee5
- Outcome
- β-amylase activity, and starch phosphorylase activitye5
- Direction
- increasede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“The soluble sugar content, sucrose content, fructose content, sucrose synthase activity, sucrose phosphate synthase activity, α-amylase activity, β-amylase activity, and starch phosphorylase activity increased with increasing NaCl stress time”
t0“Rice Seedlings”
Claim · model-written summary
Starch content and acid invertase activity changed in the opposite direction to the sugar and enzyme changes with increasing NaCl stress time.
- Taxon
- Rice SeedlingsOryza sativat0
- Treatment
- NaCl stress timee5
- Outcome
- starch content and acid invertase activitye7
- Direction
- decreaseinferrede7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“The soluble sugar content, sucrose content, fructose content, sucrose synthase activity, sucrose phosphate synthase activity, α-amylase activity, β-amylase activity, and starch phosphorylase activity increased with increasing NaCl stress time”
e7“the changes in the starch content and acid invertase activity were the opposite”
t0“Rice Seedlings”
Claim · model-written summary
Maximum and minimum values of the measured variables were reached on day 13 of NaCl stress.
- Taxon
- Rice SeedlingsOryza sativat0
- Treatment
- NaCl stresse6
- Outcome
- max/min valuese6
- Value
- 13th daye6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“The max/min values were reached on the 13th day of NaCl stress”
t0“Rice Seedlings”
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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.