Abstract
The implementation of proper agricultural practices is important for reducing the effect of salt stress in plants. Therefore, this experiment was conducted in 2014/2015 and 2015/2016 seasons at Ras Sudr station of Desert Research Center, South Sinai Governorate, Egypt, to determine the most effective selenium (Se) dose and application method on lettuce plants Bruma cultivar under salt stress conditions. Six different Se treatments; Se0 (without application as a control), Se1 (seed soaking in 30 µmol l-1 for 12 h), Se2 (seed soaking in 50 µmol l-1 for 12 h), Se3 (foliar application of 10 µmol l-1), Se4 (foliar application of 20 µmol l-1) and Se5 (foliar application of 30 µmol l-1) were applied. The results showed that Se provision through both of the tested methods improved the plant leaf number, chlorophyll content, as well as N, P, K and Ca concentrations in the leaves, when compared with the control treatment. Moreover, Na content decreased in the leaves, which were treated than those of the control treatment. The plants grown under the Se treatments had larger heads and higher yields than the untreated plants. Foliar spraying was the most effective method of Se application of the lettuce plants, and the best results were obtained with the foliar spraying treatment at 20 µmol l-1 sodium selenate. These results suggest that applying the appropriate dose of Se via foliar spraying has the potential for use as an efficient and practical method of improving plant growth and enhancing salt-stress resistance in lettuce plants.
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Claims 10
Claim · model-written summary
Selenium provision improved the leaf number of lettuce compared with the control treatment.
- Taxon
- lettuce
Lactuca sativae0 - Material
- Brumae0
- Treatment
- Se provisione1
- Outcome
- leaf numbere1
- Direction
- improvede1
- Comparator
- control treatmente1
- Setting
- Ras Sudr statione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this experiment was conducted in 2014/2015 and 2015/2016 seasons at Ras Sudr station of Desert Research Center, South Sinai Governorate, Egypt, to determine the most effective selenium (Se) dose and application method on lettuce plants Bruma cultivar under salt stress conditions”
e1“The results showed that Se provision through both of the tested methods improved the plant leaf number, chlorophyll content, as well as N, P, K and Ca concentrations in the leaves, when compared with the control treatment”
Claim · model-written summary
Selenium provision improved the chlorophyll content of lettuce compared with the control treatment.
- Taxon
- lettuceLactuca sativae0
- Material
- Brumae0
- Treatment
- Se provisione1
- Outcome
- chlorophyll contente1
- Direction
- improvede1
- Comparator
- control treatmente1
- Setting
- Ras Sudr statione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this experiment was conducted in 2014/2015 and 2015/2016 seasons at Ras Sudr station of Desert Research Center, South Sinai Governorate, Egypt, to determine the most effective selenium (Se) dose and application method on lettuce plants Bruma cultivar under salt stress conditions”
e1“The results showed that Se provision through both of the tested methods improved the plant leaf number, chlorophyll content, as well as N, P, K and Ca concentrations in the leaves, when compared with the control treatment”
Claim · model-written summary
Selenium provision improved leaf N, P and K concentrations of lettuce compared with the control treatment.
- Taxon
- lettuceLactuca sativae0
- Material
- Brumae0
- Organ / stage
- leavese1
- Treatment
- Se provisione1
- Outcome
- N, P, Ke1
- Direction
- improvede1
- Comparator
- control treatmente1
- Setting
- Ras Sudr statione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this experiment was conducted in 2014/2015 and 2015/2016 seasons at Ras Sudr station of Desert Research Center, South Sinai Governorate, Egypt, to determine the most effective selenium (Se) dose and application method on lettuce plants Bruma cultivar under salt stress conditions”
e1“The results showed that Se provision through both of the tested methods improved the plant leaf number, chlorophyll content, as well as N, P, K and Ca concentrations in the leaves, when compared with the control treatment”
Claim · model-written summary
Selenium provision improved leaf Ca concentration of lettuce compared with the control treatment.
- Taxon
- lettuceLactuca sativae0
- Material
- Brumae0
- Organ / stage
- leavese1
- Treatment
- Se provisione1
- Outcome
- Ca concentrationse1
- Direction
- improvede1
- Comparator
- control treatmente1
- Setting
- Ras Sudr statione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this experiment was conducted in 2014/2015 and 2015/2016 seasons at Ras Sudr station of Desert Research Center, South Sinai Governorate, Egypt, to determine the most effective selenium (Se) dose and application method on lettuce plants Bruma cultivar under salt stress conditions”
e1“The results showed that Se provision through both of the tested methods improved the plant leaf number, chlorophyll content, as well as N, P, K and Ca concentrations in the leaves, when compared with the control treatment”
Claim · model-written summary
Selenium treatment decreased leaf Na content of lettuce compared with the control treatment.
- Taxon
- lettuceLactuca sativae0
- Organ / stage
- leavese2
- Treatment
- See0
- Outcome
- Na contente2
- Direction
- decreasede2
- Comparator
- control treatmente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this experiment was conducted in 2014/2015 and 2015/2016 seasons at Ras Sudr station of Desert Research Center, South Sinai Governorate, Egypt, to determine the most effective selenium (Se) dose and application method on lettuce plants Bruma cultivar under salt stress conditions”
e2“Moreover, Na content decreased in the leaves, which were treated than those of the control treatment”
Claim · model-written summary
Selenium treatments gave lettuce larger heads than untreated plants.
- Taxon
- lettuceLactuca sativae0
- Treatment
- Se treatmentse3
- Outcome
- headse3
- Direction
- largere3
- Comparator
- untreated plantse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this experiment was conducted in 2014/2015 and 2015/2016 seasons at Ras Sudr station of Desert Research Center, South Sinai Governorate, Egypt, to determine the most effective selenium (Se) dose and application method on lettuce plants Bruma cultivar under salt stress conditions”
e3“The plants grown under the Se treatments had larger heads and higher yields than the untreated plants”
Claim · model-written summary
Selenium treatments gave lettuce higher yields than untreated plants.
- Taxon
- lettuceLactuca sativae0
- Treatment
- Se treatmentse3
- Outcome
- yieldse3
- Direction
- highere3
- Comparator
- untreated plantse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this experiment was conducted in 2014/2015 and 2015/2016 seasons at Ras Sudr station of Desert Research Center, South Sinai Governorate, Egypt, to determine the most effective selenium (Se) dose and application method on lettuce plants Bruma cultivar under salt stress conditions”
e3“The plants grown under the Se treatments had larger heads and higher yields than the untreated plants”
Claim · model-written summary
Foliar spraying was the most effective method of selenium application for lettuce.
- Taxon
- lettuceLactuca sativae0
- Treatment
- Foliar sprayinge4
- Outcome
- most effectivee4
- Direction
- most effectivee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this experiment was conducted in 2014/2015 and 2015/2016 seasons at Ras Sudr station of Desert Research Center, South Sinai Governorate, Egypt, to determine the most effective selenium (Se) dose and application method on lettuce plants Bruma cultivar under salt stress conditions”
e4“Foliar spraying was the most effective method of Se application of the lettuce plants, and the best results were obtained with the foliar spraying treatment”
Claim · model-written summary
The best lettuce results were obtained with the foliar spraying treatment.
- Taxon
- lettuceLactuca sativae0
- Treatment
- foliar spraying treatmente4
- Outcome
- best resultse4
- Direction
- beste4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this experiment was conducted in 2014/2015 and 2015/2016 seasons at Ras Sudr station of Desert Research Center, South Sinai Governorate, Egypt, to determine the most effective selenium (Se) dose and application method on lettuce plants Bruma cultivar under salt stress conditions”
e4“Foliar spraying was the most effective method of Se application of the lettuce plants, and the best results were obtained with the foliar spraying treatment”
Claim · model-written summary
Applying the appropriate dose of selenium via foliar spraying is suggested as an efficient and practical way to improve lettuce growth and salt-stress resistance.
- Taxon
- lettuce plantsLactuca sativae5
- Outcome
- applying the appropriate dose of Se via foliar sprayinge5
- Qualifier
- enhancing salt-stress resistancee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“These results suggest that applying the appropriate dose of Se via foliar spraying has the potential for use as an efficient and practical method of improving plant growth and enhancing salt-stress resistance in lettuce plants”
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