Abstract
Abstract Interactive effect of NaCl salinity and putrescine on shoot growth, ion (Na + , K + and CI − ) concentration in leaf, stem and inflorescence and yield of rice (Oryza sativa L. var. GR‐3) were studied. When rice plants were subjected to salt stress (12 dS/m) the extension growth and dry weight of shoot system as well as total leaf area and chlorophyll content were found markedly reduced. Analysis of leaf, stem and inflorescence of salt‐stressed plants showed higher concentration of Na + and Cl ions and lower concentration of K + ion compared to the control. Salinization also caused a considerable fall in grain yield. Foliar application of putrescine (10 −5 M) significantly increased the growth and yield of salt‐stressed plants. Putrescine treatment decreased the influx of Na + and Cl − ions and increased the K + level in all the tissues of salinized plants examined. Putrescine also increased the chlorophyll content in salt‐stressed plants. These results suggest that exogenous application of putrescine can be used successfully to ameliorate the stress injuries caused by NaCl salinity in rice plants to a considerable extent.
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Claims 10
Claim · model-written summary
Salt stress markedly reduced the extension growth and dry weight of the rice shoot system compared with control.
- Taxon
- rice
Oryza sativae0 - Treatment
- salt stress (12 dS/m)e0
- Outcome
- extension growth and dry weight of shoot systeme0
- Direction
- markedly reducede0
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When rice plants were subjected to salt stress (12 dS/m) the extension growth and dry weight of shoot system as well as total leaf area and chlorophyll content were found markedly reduced”
e1“showed higher concentration of Na + and Cl ions and lower concentration of K + ion compared to the control”
Claim · model-written summary
Salt stress markedly reduced total leaf area and chlorophyll content of rice compared with control.
- Taxon
- riceOryza sativae0
- Treatment
- salt stress (12 dS/m)e0
- Outcome
- total leaf area and chlorophyll contente0
- Direction
- markedly reducede0
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When rice plants were subjected to salt stress (12 dS/m) the extension growth and dry weight of shoot system as well as total leaf area and chlorophyll content were found markedly reduced”
e1“showed higher concentration of Na + and Cl ions and lower concentration of K + ion compared to the control”
Claim · model-written summary
Salinization caused a considerable fall in rice grain yield.
- Taxon
- riceOryza sativae0
- Treatment
- Salinizatione2
- Outcome
- grain yielde2
- Direction
- falle2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When rice plants were subjected to salt stress (12 dS/m) the extension growth and dry weight of shoot system as well as total leaf area and chlorophyll content were found markedly reduced”
e2“Salinization also caused a considerable fall in grain yield”
Claim · model-written summary
Salt stress increased the concentration of Na + and Cl ions in leaf, stem and inflorescence of rice compared with control.
- Taxon
- riceOryza sativae0
- Organ / stage
- leaf, stem and inflorescencee2
- Treatment
- salt stress (12 dS/m)e0
- Outcome
- concentration of Na + and Cl ionse1
- Direction
- highere1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When rice plants were subjected to salt stress (12 dS/m) the extension growth and dry weight of shoot system as well as total leaf area and chlorophyll content were found markedly reduced”
e1“showed higher concentration of Na + and Cl ions and lower concentration of K + ion compared to the control”
e2“Analysis of leaf, stem and inflorescence”
Claim · model-written summary
Salt stress lowered the concentration of K + in leaf, stem and inflorescence of rice compared with control.
- Taxon
- riceOryza sativae0
- Organ / stage
- leaf, stem and inflorescencee2
- Treatment
- salt stress (12 dS/m)e0
- Outcome
- concentration of K + ione1
- Direction
- lowere1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When rice plants were subjected to salt stress (12 dS/m) the extension growth and dry weight of shoot system as well as total leaf area and chlorophyll content were found markedly reduced”
e1“showed higher concentration of Na + and Cl ions and lower concentration of K + ion compared to the control”
e2“Analysis of leaf, stem and inflorescence”
Claim · model-written summary
Foliar putrescine significantly increased the growth and yield of salt-stressed rice.
- Taxon
- riceOryza sativae0
- Treatment
- Foliar application of putrescinee3
- Outcome
- growth and yielde4
- Direction
- increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When rice plants were subjected to salt stress (12 dS/m) the extension growth and dry weight of shoot system as well as total leaf area and chlorophyll content were found markedly reduced”
e3“Foliar application of putrescine”
e4“significantly increased the growth and yield”
Claim · model-written summary
Putrescine treatment decreased the influx of Na + and Cl ions in salinized rice.
- Taxon
- riceOryza sativae0
- Treatment
- Putrescine treatmente4
- Outcome
- influx of Na + and Cle4
- Direction
- decreasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When rice plants were subjected to salt stress (12 dS/m) the extension growth and dry weight of shoot system as well as total leaf area and chlorophyll content were found markedly reduced”
e4“Putrescine treatment decreased the influx of Na + and Cl”
Claim · model-written summary
Putrescine treatment increased the K + level in all tissues of salinized rice.
- Taxon
- riceOryza sativae0
- Treatment
- Putrescine treatmente4
- Outcome
- K + levele5
- Direction
- increasede5
- Qualifier
- in all the tissues of salinized plants examinede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When rice plants were subjected to salt stress (12 dS/m) the extension growth and dry weight of shoot system as well as total leaf area and chlorophyll content were found markedly reduced”
e4“Putrescine treatment decreased the influx of Na + and Cl”
e5“increased the K + level in all the tissues of salinized plants examined”
Claim · model-written summary
Putrescine increased chlorophyll content of salt-stressed rice.
- Taxon
- riceOryza sativae0
- Treatment
- Putrescinee6
- Outcome
- chlorophyll contente6
- Direction
- increasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When rice plants were subjected to salt stress (12 dS/m) the extension growth and dry weight of shoot system as well as total leaf area and chlorophyll content were found markedly reduced”
e6“Putrescine also increased the chlorophyll content”
Claim · model-written summary
Exogenous putrescine application can be used to ameliorate salinity stress injuries in rice.
- Taxon
- rice plantsOryza sativae7
- Treatment
- exogenous application of putrescinee7
- Outcome
- ameliorate the stress injuriese7
- Qualifier
- to a considerable extente7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“These results suggest that exogenous application of putrescine can be used successfully to ameliorate the stress injuries caused by NaCl salinity in rice plants to a considerable extent”
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See all 691 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.