Abstract
ABSTRACT This study reports the relationship of the leaf ionic composition with the grain yield and yield components of wheat in response to salinity x sodicity and salinity alone. The study was conducted in soil culture in pots with three treatments including control (ECe 2.6 dS m− 1 and SAR 4.53), salinity (ECe 15 dS m− 1 and SAR 9.56), and salinity x sodicity (ECe 15 dS m− 1 and SAR 35). The soil was treated before being put in the pots and the pots were arranged in a completely randomized factorial arrangement with five replications. The seeds of three wheat genotypes were sown directly in the pots and the study was continued till the crop maturity. At booting stage, the leaf second to the flag leaf of each plant was collected and analyzed for sodium (Na+), potassium (K+), and chloride (Cl−). At maturity, plants were harvested and data regarding grain yield and yield components were recorded. This study shows that salinity and sodicity in combination decreases the grain yield of wheat more than the salinity alone with a greater difference in the sensitive genotype. This study also shows that as for salinity, the maintenance of lower Na+ and higher K+ concentrations and higher K+: Na+ ratio in the leaves relates positively with the better development of different yield components and higher grain yield in saline sodic soil conditions. Although, the leaf Cl− concentration was increased significantly by salinity as well as salinity x sodicity and would have affected the growth and yield, yet it does not seem to determine the genotypic tolerance or sensitivity to either salinity or salinity x sodicity.
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Claims 7
Claim · model-written summary
Combined salinity and sodicity decreased wheat grain yield more than salinity alone, particularly in the sensitive genotype.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- salinity and sodicity in combinatione0
- Outcome
- grain yielde0
- Direction
- decreasese0
- Qualifier
- greater difference in the sensitive genotypee0
- Comparator
- salinity alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study shows that salinity and sodicity in combination decreases the grain yield of wheat more than the salinity alone with a greater difference in the sensitive genotype.”
Claim · model-written summary
Lower leaf Na+ concentration was positively related to wheat yield components and grain yield in saline sodic soil.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- leavese0
- Compound
- Na+e0
- Outcome
- different yield components and higher grain yielde0
- Direction
- highere0
- Setting
- saline sodic soil conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the maintenance of lower Na+ and higher K+ concentrations and higher K+: Na+ ratio in the leaves relates positively with the better development of different yield components and higher grain yield in saline sodic soil conditions.”
t0“Wheat”
Claim · model-written summary
Higher leaf K+ concentration was positively related to wheat yield components and grain yield in saline sodic soil.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- leavese0
- Compound
- K+e0
- Outcome
- different yield components and higher grain yielde0
- Direction
- highere0
- Setting
- saline sodic soil conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the maintenance of lower Na+ and higher K+ concentrations and higher K+: Na+ ratio in the leaves relates positively with the better development of different yield components and higher grain yield in saline sodic soil conditions.”
t0“Wheat”
Claim · model-written summary
Higher leaf K+: Na+ ratio was positively related to wheat yield components and grain yield in saline sodic soil.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- leavese0
- Compound
- K+: Na+e0
- Outcome
- different yield components and higher grain yielde0
- Direction
- highere0
- Setting
- saline sodic soil conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the maintenance of lower Na+ and higher K+ concentrations and higher K+: Na+ ratio in the leaves relates positively with the better development of different yield components and higher grain yield in saline sodic soil conditions.”
t0“Wheat”
Claim · model-written summary
Salinity significantly increased wheat leaf Cl− concentration.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- salinitye0
- Outcome
- leaf Cl− concentratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the leaf Cl− concentration was increased significantly by salinity as well as salinity x sodicity”
t0“Wheat”
Claim · model-written summary
Combined salinity and sodicity significantly increased wheat leaf Cl− concentration.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- salinity x sodicitye0
- Outcome
- leaf Cl− concentratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the leaf Cl− concentration was increased significantly by salinity as well as salinity x sodicity”
t0“Wheat”
Claim · model-written summary
Leaf Cl− concentration did not appear to determine wheat genotype tolerance or sensitivity to salinity or combined salinity and sodicity.
- Taxon
- WheatTriticum aestivumt0
- Compound
- Cl−e0
- Outcome
- genotypic tolerance or sensitivitye0
- Qualifier
- does not seem to determinee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Although, the leaf Cl− concentration was increased significantly by salinity as well as salinity x sodicity and would have affected the growth and yield, yet it does not seem to determine the genotypic tolerance or sensitivity to either salinity or salinity x sodicity.”
t0“Wheat”
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