Abstract
The effect of seed priming with sand on the seed germination,seedling emergence,the characters of seeding growth and development of the transgenic insect resistant cotton stressed with different concentrations of NaCl was studied,using two extending transgenic insect resistant cotton cultivars,CCRI 41 and Z-905,as materials and their genetic background cultivar,CCRI 23,as check.The results indicated that it was harmful for the seed germination and field emergence of the upland cotton seeds when they were treated with different concentration of NaCl.The germination percentage and field emergence of the transgenic insect resistant cotton cultivars stressed by NaCl were much lower than those of their genetic background check.However,priming treatment with sand could alleviate the harm of the NaCl stress significantly.After the treatment of seed priming,the germination percentage and seedling emergence on the condition of NaCl stress were increased significantly,and the seed tolerance to the salt stress was enhanced greatly,especially for the transgenic insect resistant cotton cultivars.There were great differences in the effect of the seed priming treatments on the seed germination and field emergence,stressed by NaCl,between the transgenic insect resistant cotton and their genetic background one;and the formers,with weaker tolerance against NaCl stress,had a better effect than that of their genetic background one without exogenous insect resistant genes.The results of biochemical analysis showed that the activities of peroxidase(POD)and superoxide dismutase(SOD)in cotyledons and roots of cotton seedling increased significantly,but decreased dramatically for the content of malondialdehyde(MDA),when they were treated by seed priming with sand,comparing with the check.This experiment indicated that sand priming for cotton seed could enhance the salt tolerance of seedlings due to increasing the antioxidant enzyme activity and reducing the malondialdehyde(MDA)accumulating in the cotton seedlings,which suggested that sand priming may help to improve seedling establishment and enhance the ability of salt tolerance in cotton.
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Claims 9
Claim · model-written summary
NaCl harmed cotton seed germination and field emergence.
- Taxon
- upland cottone0
- Treatment
- different concentration of NaCle0
- Outcome
- seed germination and field emergencee0
- Direction
- harmfule0
Not reportedComparator
Verbatim
e0“it was harmful for the seed germination and field emergence of the upland cotton seeds when they were treated with different concentration of NaCl”
Claim · model-written summary
Under NaCl, transgenic cultivars had lower germination and field emergence than their background check.
- Taxon
- cotton
Gossypium hirsutume0 - Material
- transgenic insect resistant cotton cultivarse0
- Outcome
- germination percentage and field emergencee0
- Direction
- much lowere0
- Comparator
- genetic background checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The germination percentage and field emergence of the transgenic insect resistant cotton cultivars stressed by NaCl were much lower than those of their genetic background check”
Claim · model-written summary
Sand priming significantly increased germination and seedling emergence under NaCl.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- seed priminge0
- Outcome
- germination percentage and seedling emergencee0
- Direction
- increasede0
- Qualifier
- NaCl stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After the treatment of seed priming,the germination percentage and seedling emergence on the condition of NaCl stress were increased significantly”
t0“Cotton”
Claim · model-written summary
Sand priming enhanced seed salt tolerance, especially in the transgenic cultivars.
- Taxon
- cottonGossypium hirsutume0
- Material
- transgenic insect resistant cotton cultivarse0
- Treatment
- priming treatment with sande1
- Outcome
- seed tolerance to the salt stresse0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the seed tolerance to the salt stress was enhanced greatly,especially for the transgenic insect resistant cotton cultivars”
e1“priming treatment with sand”
Claim · model-written summary
Priming benefits differed between transgenic cotton and its genetic background, with greater benefit in the transgenic cultivars.
- Taxon
- cottonGossypium hirsutume0
- Material
- transgenic insect resistant cottone0
- Outcome
- effect of the seed priming treatments on the seed germination and field emergencee0
- Direction
- bettere0
- Comparator
- genetic background onee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were great differences in the effect of the seed priming treatments on the seed germination and field emergence,stressed by NaCl,between the transgenic insect resistant cotton and their genetic background one;and the formers,with weaker tolerance against NaCl stress,had a better effect than that of their genetic background one without exogenous insect resistant genes”
Claim · model-written summary
Sand priming significantly increased peroxidase and superoxide dismutase activities in cotyledons and roots.
- Taxon
- cottonGossypium hirsutume0
- Organ / stage
- cotyledons and rootse0
- Treatment
- seed priming with sande1
- Outcome
- activities of peroxidase(POD)and superoxide dismutase(SOD)e0
- Direction
- increasede0
- Comparator
- the checke1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“activities of peroxidase(POD)and superoxide dismutase(SOD)in cotyledons and roots of cotton seedling increased significantly”
e1“when they were treated by seed priming with sand,comparing with the check”
Claim · model-written summary
Sand priming sharply reduced malondialdehyde content.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- seed priming with sande0
- Outcome
- content of malondialdehyde(MDA)e0
- Direction
- decreasede0
- Comparator
- the checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased dramatically for the content of malondialdehyde(MDA),when they were treated by seed priming with sand,comparing with the check”
t0“Cotton”
Claim · model-written summary
The authors attributed increased cotton salt tolerance to increased antioxidant activity and reduced malondialdehyde accumulation.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- sand priminge0
- Outcome
- salt tolerance of seedlingse0
- Qualifier
- increasing the antioxidant enzyme activity and reducing the malondialdehyde(MDA)accumulatinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sand priming for cotton seed could enhance the salt tolerance of seedlings due to increasing the antioxidant enzyme activity and reducing the malondialdehyde(MDA)accumulating in the cotton seedlings”
Claim · model-written summary
The authors suggested sand priming may improve cotton seedling establishment and salt tolerance.
- Taxon
- cottonGossypium hirsutume0
- Outcome
- sand priming may help to improve seedling establishment and enhance the ability of salt tolerancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sand priming may help to improve seedling establishment and enhance the ability of salt tolerance in cotton”
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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.