Abstract
The effect of foliar Se application on salt-stressed peppers was investigated. The two-year field experiment consisted of the T0: 3 g NaCl L−1, T1: 6 g NaCl L−1 and T2: 9 g NaCl L−1 saline treatments and two Se doses (Se-: 0 mg L−1 vs Se+:2 mg L−1), exogenously applied from leaf development until fruit maturation. Biometric characters, photosynthetic capacity, water status, antioxidant enzymes, oxidative stress markers, organic compounds and mineral nutrients were monitored. Data revealed a helpful effect of Se on pepper growth and photosynthetic capacity under T0 and T1. This was linked to an enhanced leaf K+ content and selective absorption of K+ over Na+ under T0+Se+. The beneficial role of Se in the T1 was owed to the significant increase of proline in leaves and stems, thus helping in maintaining cell membrane stability. An activation of protective mechanisms like photochemical quenching (qP) was also noticed in the T1+Se+. Peppers’ sensitivity to T2 is owed to a substantial reduction of net photosynthesis (Pn) relative to T0, oxidative stress and build-up of MDA. The results could indicate that T0 and T1 salinity levels impacts were lessened with Se supply through the enhancement of ion selectivity, osmoprotection and photosynthetic performances.
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Claims 8
Claim · model-written summary
Foliar selenium had a helpful effect on pepper growth and photosynthetic capacity under T0 and T1 salinity.
- Treatment
- foliar Se applicatione0
- Outcome
- growth and photosynthetic capacitye2
- Direction
- helpful effecte2
- Qualifier
- under T0 and T1e2
- Comparator
- Se-: 0 mg L−1e1
CapsicumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of foliar Se application on salt-stressed peppers was investigated”
e1“two Se doses (Se-: 0 mg L−1 vs Se+:2 mg L−1), exogenously applied from leaf development until fruit maturation”
e2“Data revealed a helpful effect of Se on pepper growth and photosynthetic capacity under T0 and T1”
Claim · model-written summary
Selenium under T0 salinity was associated with enhanced leaf K+ content.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of foliar Se application on salt-stressed peppers was investigated”
e3“This was linked to an enhanced leaf K+ content and selective absorption of K+ over Na+ under T0+Se+”
Claim · model-written summary
Selenium under T0 salinity was associated with selective absorption of K+ over Na+.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of foliar Se application on salt-stressed peppers was investigated”
e3“This was linked to an enhanced leaf K+ content and selective absorption of K+ over Na+ under T0+Se+”
Claim · model-written summary
Selenium under T1 salinity significantly increased proline in pepper leaves and stems.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of foliar Se application on salt-stressed peppers was investigated”
e4“The beneficial role of Se in the T1 was owed to the significant increase of proline in leaves and stems”
Claim · model-written summary
Selenium under T1+Se+ activated photochemical quenching (qP) in pepper.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of foliar Se application on salt-stressed peppers was investigated”
e5“An activation of protective mechanisms like photochemical quenching (qP) was also noticed in the T1+Se+”
Claim · model-written summary
The T2 salinity level reduced net photosynthesis (Pn) in pepper relative to T0.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of foliar Se application on salt-stressed peppers was investigated”
e6“Peppers’ sensitivity to T2 is owed to a substantial reduction of net photosynthesis (Pn) relative to T0, oxidative stress and build-up of MDA”
Claim · model-written summary
The T2 salinity level increased malondialdehyde (MDA) build-up in pepper.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of foliar Se application on salt-stressed peppers was investigated”
e6“Peppers’ sensitivity to T2 is owed to a substantial reduction of net photosynthesis (Pn) relative to T0, oxidative stress and build-up of MDA”
Claim · model-written summary
Selenium supply may lessen T0 and T1 salinity impacts through ion selectivity, osmoprotection and photosynthetic performance.
- Treatment
- Se supplye7
- Outcome
- salinity levels impactse7
- Qualifier
- enhancement of ion selectivity, osmoprotection and photosynthetic performancese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of foliar Se application on salt-stressed peppers was investigated”
e7“The results could indicate that T0 and T1 salinity levels impacts were lessened with Se supply through the enhancement of ion selectivity, osmoprotection and photosynthetic performances”
The same questions in other papers
selenium atom · physiology: photosynthesis · Capsicum (peppers)Results agree
1 paper in the same direction as this paper
- positive
application · physiology: photosynthesis · Capsicum (peppers)Results agree
1 paper in the same direction as this paper
- positive
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.