Abstract
Abiotic stresses are among the major limiting factors for plant growth and crop productivity. Among these, salinity is one of the major risk factors for plant growth and development in arid to semi-arid regions. Cultivation of salt tolerant crop genotypes is one of the imperative approaches to meet the food demand for increasing population. The current experiment was carried out to access the performance of different rice genotypes under salinity stress and Zinc (Zn) sources. Four rice genotypes were grown in a pot experiment and were exposed to salinity stress (7 dS m−1), and Zn (15 mg kg−1 soil) was applied from two sources, ZnSO4 and Zn-EDTA. A control of both salinity and Zn was kept for comparison. Results showed that based on the biomass accumulation and K+/Na+ ratio, KSK-133 and BAS-198 emerged as salt tolerant and salt sensitive, respectively. Similarly, based on the Zn concentration, BAS-2000 was reported as Zn-in-efficient while IR-6 was a Zn-efficient genotype. Our results also revealed that plant growth, relative water content (RWC), physiological attributes including chlorophyll contents, ionic concentrations in straw and grains of all rice genotypes were decreased under salinity stress. However, salt tolerant and Zn-in-efficient rice genotypes showed significantly higher shoot K+ and Zn concentrations under saline conditions. Zinc application significantly alleviates the harmful effects of salinity by improving morpho-physiological attributes and enhancing antioxidant enzyme activities, and the uptake of K and Zn. The beneficial effect of Zn was more pronounced in salt-tolerant and Zn in-efficient rice genotypes as compared with salt-sensitive and Zn-efficient genotypes. In sum, our results confirmed that Zn application increased overall plant’s performance under saline conditions, particularly in Zn in-efficient and tolerant genotypes as compared with salt-sensitive and Zn efficient rice genotypes.
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Claims 14
Claim · model-written summary
KSK-133 was classified as salt tolerant based on biomass accumulation and K+/Na+ ratio.
- Taxon
- Rice
Oryza sativat0 - Material
- KSK-133e0
- Outcome
- salt tolerante0
- Qualifier
- biomass accumulation and K+/Na+ ratioe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“based on the biomass accumulation and K+/Na+ ratio, KSK-133 and BAS-198 emerged as salt tolerant and salt sensitive, respectively”
t0“Rice”
Claim · model-written summary
BAS-198 was classified as salt sensitive based on biomass accumulation and K+/Na+ ratio.
- Taxon
- RiceOryza sativat0
- Material
- BAS-198e0
- Outcome
- salt sensitivee0
- Qualifier
- biomass accumulation and K+/Na+ ratioe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“based on the biomass accumulation and K+/Na+ ratio, KSK-133 and BAS-198 emerged as salt tolerant and salt sensitive, respectively”
t0“Rice”
Claim · model-written summary
BAS-2000 was classified as Zn-in-efficient based on Zn concentration.
- Taxon
- RiceOryza sativat0
- Material
- BAS-2000e0
- Outcome
- Zn-in-efficiente0
- Qualifier
- Zn concentratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“based on the Zn concentration, BAS-2000 was reported as Zn-in-efficient while IR-6 was a Zn-efficient genotype”
t0“Rice”
Claim · model-written summary
IR-6 was classified as Zn-efficient based on Zn concentration.
- Taxon
- RiceOryza sativat0
- Material
- IR-6e0
- Outcome
- Zn-efficiente0
- Qualifier
- Zn concentratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“based on the Zn concentration, BAS-2000 was reported as Zn-in-efficient while IR-6 was a Zn-efficient genotype”
t0“Rice”
Claim · model-written summary
Salinity stress decreased rice plant growth.
- Taxon
- riceOryza sativae0
- Treatment
- salinity stresse0
- Outcome
- plant growthe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant growth, relative water content (RWC), physiological attributes including chlorophyll contents, ionic concentrations in straw and grains of all rice genotypes were decreased under salinity stress”
t0“Rice”
Claim · model-written summary
Salinity stress decreased rice relative water content (RWC).
- Taxon
- riceOryza sativae0
- Treatment
- salinity stresse0
- Outcome
- relative water content (RWC)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant growth, relative water content (RWC), physiological attributes including chlorophyll contents, ionic concentrations in straw and grains of all rice genotypes were decreased under salinity stress”
t0“Rice”
Claim · model-written summary
Salinity stress decreased rice chlorophyll contents.
- Taxon
- riceOryza sativae0
- Treatment
- salinity stresse0
- Outcome
- chlorophyll contentse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant growth, relative water content (RWC), physiological attributes including chlorophyll contents, ionic concentrations in straw and grains of all rice genotypes were decreased under salinity stress”
t0“Rice”
Claim · model-written summary
Salinity stress decreased rice ionic concentrations in straw and grains.
- Taxon
- riceOryza sativae0
- Treatment
- salinity stresse0
- Outcome
- ionic concentrations in straw and grainse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant growth, relative water content (RWC), physiological attributes including chlorophyll contents, ionic concentrations in straw and grains of all rice genotypes were decreased under salinity stress”
t0“Rice”
Claim · model-written summary
Salt tolerant and Zn in-efficient rice genotypes had higher shoot K+ under saline conditions.
- Taxon
- riceOryza sativae0
- Material
- salt tolerant and Zn-in-efficient rice genotypese0
- Outcome
- shoot K+e0
- Direction
- highere0
- Setting
- saline conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt tolerant and Zn-in-efficient rice genotypes showed significantly higher shoot K+ and Zn concentrations under saline conditions”
Claim · model-written summary
Salt tolerant and Zn in-efficient rice genotypes had higher Zn concentrations under saline conditions.
- Taxon
- riceOryza sativae0
- Material
- salt tolerant and Zn-in-efficient rice genotypese0
- Outcome
- Zn concentrationse0
- Direction
- highere0
- Setting
- saline conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt tolerant and Zn-in-efficient rice genotypes showed significantly higher shoot K+ and Zn concentrations under saline conditions”
Claim · model-written summary
Zinc application improving rice morpho-physiological attributes under salinity.
- Taxon
- RiceOryza sativat0
- Treatment
- Zinc applicatione0
- Outcome
- morpho-physiological attributese0
- Direction
- improvinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc application significantly alleviates the harmful effects of salinity by improving morpho-physiological attributes and enhancing antioxidant enzyme activities, and the uptake of K and Zn”
t0“Rice”
Claim · model-written summary
Zinc application enhancing rice antioxidant enzyme activities under salinity.
- Taxon
- RiceOryza sativat0
- Treatment
- Zinc applicatione0
- Outcome
- antioxidant enzyme activitiese0
- Direction
- enhancinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc application significantly alleviates the harmful effects of salinity by improving morpho-physiological attributes and enhancing antioxidant enzyme activities, and the uptake of K and Zn”
t0“Rice”
Claim · model-written summary
Zinc application enhancing rice uptake of K and Zn under salinity.
- Taxon
- RiceOryza sativat0
- Treatment
- Zinc applicatione0
- Outcome
- uptake of K and Zne0
- Direction
- enhancinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc application significantly alleviates the harmful effects of salinity by improving morpho-physiological attributes and enhancing antioxidant enzyme activities, and the uptake of K and Zn”
t0“Rice”
Claim · model-written summary
The benefit of Zn was greater in salt tolerant and Zn in-efficient rice genotypes than salt sensitive and Zn efficient genotypes.
- Taxon
- RiceOryza sativat0
- Material
- salt-tolerant and Zn in-efficient rice genotypese0
- Treatment
- Zne0
- Outcome
- beneficial effect of Zne0
- Direction
- more pronouncede0
- Comparator
- salt-sensitive and Zn-efficient genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The beneficial effect of Zn was more pronounced in salt-tolerant and Zn in-efficient rice genotypes as compared with salt-sensitive and Zn-efficient genotypes”
t0“Rice”
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