Abstract
A pot culture was carried out with Oryza sativa L. vari-Co-39, to investigate the effects of supplementary calcium chloride on plants grown at NaCl (50mM) concentration. Treatments were: (1) Control: nutrient solution alone (C); (2) nutrient solution plus 50mM sodium chloride (NaCl); (3) nutrient solution plus 10mM calcium chloride (CaCl 2 ); (4) nutrient solution plus 15mM calcium chloride (CaCl 2 ); (5) nutrient solution and 50 mM NaCl plus supplementary 10 mM CaCl 2 (NaCl + CaCl 2 ); and (6) 50 mM NaCl plus additional mixture of 15 mM CaCl 2 in nutrient solution (NaCl + CaCl 2 ). The plants grown under salt stress produced low dry weight and relative water content than those grown in standard nutrient solution and in CaCl2 alone. Supplemental calcium chloride added to nutrient solution containing salt significantly improved growth and relative water content. Membrane permeability increased with high NaCl application and these increases in root membrane permeability were decreased with supplementary Ca. The concentration of chloride (Cl) increases highly for all treatments. Sodium (Na) concentration in plant tissues increased in both shoots and roots at high NaCl treatment. Application of supplementary Ca lowered Na concentration. Concentrations of Ca. K and N were at deficient ranges in the plants grown at high NaCl levels and these deficiencies were corrected by supplementary Ca. The ameliorating effect of Ca on growth and physiological variables could reduce the negative effect of salinity of Oryza sativa L., plants.
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Claims 9
Claim · model-written summary
Salt stress reduced dry weight and relative water content of rice relative to standard nutrient solution and CaCl2 alone.
- Taxon
- Oryza sativa
Oryza sativat0 - Material
- vari-Co-39e0
- Treatment
- NaCl (50mM)e3
- Outcome
- dry weight and relative water contente1
- Direction
- lowe1
- Comparator
- standard nutrient solutione1
- Setting
- pot culturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A pot culture was carried out with Oryza sativa L. vari-Co-39”
e3“plants grown at NaCl (50mM) concentration”
e1“The plants grown under salt stress produced low dry weight and relative water content than those grown in standard nutrient solution and in CaCl2 alone”
t0“Oryza sativa Grown at High NaCl Salinity”
Claim · model-written summary
Supplemental calcium chloride added to saline nutrient solution significantly improved growth and relative water content of rice.
- Taxon
- Oryza sativaOryza sativat0
- Treatment
- Supplemental calcium chloridee2
- Outcome
- growth and relative water contente2
- Direction
- improvede2
- Comparator
- nutrient solution containing salte2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Supplemental calcium chloride added to nutrient solution containing salt significantly improved growth and relative water content”
t0“Oryza sativa Grown at High NaCl Salinity”
Claim · model-written summary
High NaCl application increased membrane permeability in rice.
- Taxon
- Oryza sativaOryza sativat0
- Treatment
- high NaCl applicatione3
- Outcome
- Membrane permeabilitye3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Membrane permeability increased with high NaCl application and these increases in root membrane permeability were decreased with supplementary Ca”
t0“Oryza sativa Grown at High NaCl Salinity”
Claim · model-written summary
Supplementary Ca decreased the NaCl-induced increase in root membrane permeability of rice.
- Taxon
- Oryza sativaOryza sativat0
- Organ / stage
- roote3
- Treatment
- supplementary Cae3
- Outcome
- root membrane permeabilitye3
- Direction
- decreasede3
- Comparator
- high NaCl applicatione3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Membrane permeability increased with high NaCl application and these increases in root membrane permeability were decreased with supplementary Ca”
t0“Oryza sativa Grown at High NaCl Salinity”
Claim · model-written summary
Chloride concentration increased strongly in all treatments of rice.
- Taxon
- Oryza sativaOryza sativat0
- Outcome
- concentration of chloride (Cl)e5
- Direction
- increasese5
- Qualifier
- for all treatmentse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“The concentration of chloride (Cl) increases highly for all treatments”
t0“Oryza sativa Grown at High NaCl Salinity”
Claim · model-written summary
High NaCl treatment increased sodium concentration in shoots and roots of rice.
- Taxon
- Oryza sativaOryza sativat0
- Organ / stage
- shoots and rootse6
- Treatment
- high NaCl treatmente6
- Outcome
- Sodium (Na) concentration in plant tissuese6
- Direction
- increasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Sodium (Na) concentration in plant tissues increased in both shoots and roots at high NaCl treatment”
t0“Oryza sativa Grown at High NaCl Salinity”
Claim · model-written summary
Supplementary Ca lowered sodium concentration in rice.
- Taxon
- Oryza sativaOryza sativat0
- Treatment
- Application of supplementary Cae7
- Outcome
- Na concentratione7
- Direction
- lowerede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Application of supplementary Ca lowered Na concentration”
t0“Oryza sativa Grown at High NaCl Salinity”
Claim · model-written summary
Concentrations of Ca, K and N were at deficient ranges in rice grown at high NaCl levels.
- Taxon
- Oryza sativaOryza sativat0
- Outcome
- Concentrations of Ca. K and Ne1
- Qualifier
- deficient rangese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Concentrations of Ca. K and N were at deficient ranges in the plants grown at high NaCl levels”
t0“Oryza sativa Grown at High NaCl Salinity”
Claim · model-written summary
Supplementary Ca corrected the Ca, K and N deficiencies of rice grown at high NaCl levels.
- Taxon
- Oryza sativaOryza sativat0
- Treatment
- supplementary Cae2
- Outcome
- deficienciese2
- Direction
- correctede2
- Comparator
- high NaCl levelse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Concentrations of Ca. K and N were at deficient ranges in the plants grown at high NaCl levels”
e2“these deficiencies were corrected by supplementary Ca”
t0“Oryza sativa Grown at High NaCl Salinity”
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