Abstract
Impact of NaCl treatment on content of photosynthetic pigment,intensity of photosynthesis(Pn) and chlorophyll fluorescence parameters of tomato(cv.Zhongza No.9) seedling at 6-leaf stage were studied under hydroponic culture with 0,50,100,200 or 400 mg/L of NaCl added,respectively.The results showed that the content of photosynthetic pigment was increased in the duration of salt treatment.Gs was decreased with the increase of salt concentration.After 5-day salt treatment,although the higher salt treatment was found with lower Tr value and Tr value of all treatments was found lower than the control,they all tended to little difference.At the beginning(1 day) of salt treatment,Pn of all the treatments was lower than the control,and appeared lower with higher salt concentration.Pn was getting resuming after 3-day salt treatment and maintained a relative stable level until got dropping after 11-or 13-day treatment.The similar change trends were found between Fv/Fm and Fv/Fo,and between Fo and Fm during salt treatment,and each index among all the treatments was tend to close after 9-day salt treatment.qN appeared a decreasing trend and increased with the increase of salinity concentration.
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Claims 13
Claim · model-written summary
Photosynthetic pigment content increased during salt treatment.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- salt treatmente1
- Outcome
- content of photosynthetic pigmente0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato seedlings”
e0“the content of photosynthetic pigment was increased in the duration of salt treatment”
e1“the content of photosynthetic pigment was increased in the duration of salt treatment”
Claim · model-written summary
Gs decreased as salt concentration increased.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- salt treatmente1
- Outcome
- Gse0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato seedlings”
e0“Gs was decreased with the increase of salt concentration”
e1“the content of photosynthetic pigment was increased in the duration of salt treatment”
Claim · model-written summary
Higher salt treatment had lower Tr after five days.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- salt treatmente1
- Outcome
- Tr valuee0
- Direction
- lowere0
- Qualifier
- After 5-day salt treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato seedlings”
e0“After 5-day salt treatment,although the higher salt treatment was found with lower Tr value”
e1“the content of photosynthetic pigment was increased in the duration of salt treatment”
Claim · model-written summary
Tr was lower than control in all treatments after five days.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- salt treatmente1
- Outcome
- Tr valuee0
- Direction
- lowere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato seedlings”
e0“Tr value of all treatments was found lower than the control”
e1“the content of photosynthetic pigment was increased in the duration of salt treatment”
Claim · model-written summary
Tr differences tended to diminish.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- salt treatmente1
- Outcome
- little differencee0
- Direction
- little differencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato seedlings”
e0“they all tended to little difference”
e1“the content of photosynthetic pigment was increased in the duration of salt treatment”
Claim · model-written summary
Pn was lower than control at one day.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- salt treatmente1
- Outcome
- Pne0
- Direction
- lowere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato seedlings”
e0“At the beginning(1 day) of salt treatment,Pn of all the treatments was lower than the control”
e1“the content of photosynthetic pigment was increased in the duration of salt treatment”
Claim · model-written summary
Pn decreased with greater salt concentration.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- salt treatmente1
- Outcome
- lowere0
- Direction
- lowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato seedlings”
e0“appeared lower with higher salt concentration”
e1“the content of photosynthetic pigment was increased in the duration of salt treatment”
Claim · model-written summary
Pn recovered after three days and stayed relatively stable before dropping after 11 or 13 days.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- salt treatmente1
- Outcome
- Pne0
- Direction
- resuminge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato seedlings”
e0“Pn was getting resuming after 3-day salt treatment and maintained a relative stable level until got dropping after 11-or 13-day treatment”
e1“the content of photosynthetic pigment was increased in the duration of salt treatment”
Claim · model-written summary
Fv/Fm and Fv/Fo showed similar changes during salt treatment.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- salt treatmente1
- Outcome
- similar change trendse0
- Direction
- similar change trendse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato seedlings”
e0“The similar change trends were found between Fv/Fm and Fv/Fo”
e1“the content of photosynthetic pigment was increased in the duration of salt treatment”
Claim · model-written summary
Fo and Fm showed similar changes during salt treatment.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- salt treatmente1
- Outcome
- Fo and Fme0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato seedlings”
e0“between Fo and Fm during salt treatment”
e1“the content of photosynthetic pigment was increased in the duration of salt treatment”
Claim · model-written summary
Fluorescence indices tended to converge after nine days.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- salt treatmente1
- Outcome
- each indexe0
- Direction
- closee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato seedlings”
e0“each index among all the treatments was tend to close after 9-day salt treatment”
e1“the content of photosynthetic pigment was increased in the duration of salt treatment”
Claim · model-written summary
qN declined over time.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- salt treatmente1
- Outcome
- qNe0
- Direction
- decreasinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato seedlings”
e0“qN appeared a decreasing trend”
e1“the content of photosynthetic pigment was increased in the duration of salt treatment”
Claim · model-written summary
qN rose with increasing salinity.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- salt treatmente1
- Outcome
- salinity concentratione0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato seedlings”
e0“increased with the increase of salinity concentration”
e1“the content of photosynthetic pigment was increased in the duration of salt treatment”