Abstract
Plant growth and development is hampered by various environmental stresses including salinity. Effect of salt stress on relative water contents, membrane permeability, chlorophyll contents and carotenoids level was evaluated to assess their suitability as reliable indicator of salt tolerance in hot pepper. Cultivars Maha, Tata Puri and Hot Queen were subjected to different NaCl concentrations (2 [control], 4, 6 and 8 dS m -1 ). Root and shoot length, dry matter contents, relative growth rate, leaf area, specific leaf area and leaf area ratio were significantly reduced by higher salinity levels (6 and 8 dS m -1 ). Nonetheless, all the aforementioned attributes improved at 4 dS m -1 compared with control (2 dS m -1 ). In contrast, relative leaf water content (RLWC) was markedly affected with an increase in salinity stress. However, leaf chlorophyll contents and carotenoids (CAR) were significantly higher at 6 dS m -1 than the control. Salt tolerance index was high for Tata Puri followed by Hot Queen. Changes in RLWC and antioxidant activity were strongly correlated with dry matter, specific leaf area and relative growth rates. While, change in leaf area ratio, chlorophyll contents and membrane permeability was not correlated with the growth traits. In crux, RLWC and CAR contents can be used as reliable index of salt tolerance in hot pepper.
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Claims 9
Claim · model-written summary
Higher salinity significantly reduced root and shoot length, dry matter, growth rate and leaf-area traits.
- Taxon
- hot pepper
Capsicum frutescenst0 - Treatment
- higher salinity levels (6 and 8 dS m -1 )e0
- Outcome
- Root and shoot length, dry matter contents, relative growth ratee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root and shoot length, dry matter contents, relative growth rate, leaf area, specific leaf area and leaf area ratio were significantly reduced by higher salinity levels (6 and 8 dS m -1 )”
t0“EVALUATION OF DIFFERENT GROWTH AND PHYSIOLOGICAL TRAITS AS INDICES OF SALT TOLERANCE IN HOT PEPPER (CAPSICUM ANNUUM L.)”
Claim · model-written summary
At 4 dS m -1, the growth attributes improved relative to control.
- Taxon
- hot pepperCapsicum frutescenst0
- Treatment
- 4 dS m -1e0
- Outcome
- all the aforementioned attributese0
- Direction
- improvede0
- Comparator
- control (2 dS m -1 )e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all the aforementioned attributes improved at 4 dS m -1 compared with control (2 dS m -1 )”
t0“EVALUATION OF DIFFERENT GROWTH AND PHYSIOLOGICAL TRAITS AS INDICES OF SALT TOLERANCE IN HOT PEPPER (CAPSICUM ANNUUM L.)”
Claim · model-written summary
Relative leaf water content changed markedly with increasing salinity.
- Taxon
- hot pepperCapsicum frutescenst0
- Treatment
- salinity stresse0
- Outcome
- relative leaf water content (RLWC)e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“relative leaf water content (RLWC) was markedly affected with an increase in salinity stress”
t0“EVALUATION OF DIFFERENT GROWTH AND PHYSIOLOGICAL TRAITS AS INDICES OF SALT TOLERANCE IN HOT PEPPER (CAPSICUM ANNUUM L.)”
Claim · model-written summary
Leaf chlorophyll content was significantly higher at 6 dS m -1 than control.
- Taxon
- hot pepperCapsicum frutescenst0
- Treatment
- 6 dS m -1e0
- Outcome
- leaf chlorophyll contentse0
- Direction
- highere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf chlorophyll contents and carotenoids (CAR) were significantly higher at 6 dS m -1 than the control”
t0“EVALUATION OF DIFFERENT GROWTH AND PHYSIOLOGICAL TRAITS AS INDICES OF SALT TOLERANCE IN HOT PEPPER (CAPSICUM ANNUUM L.)”
Claim · model-written summary
Carotenoids were significantly higher at 6 dS m -1 than control.
- Taxon
- hot pepperCapsicum frutescenst0
- Treatment
- 6 dS m -1e0
- Outcome
- carotenoids (CAR)e0
- Direction
- highere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf chlorophyll contents and carotenoids (CAR) were significantly higher at 6 dS m -1 than the control”
t0“EVALUATION OF DIFFERENT GROWTH AND PHYSIOLOGICAL TRAITS AS INDICES OF SALT TOLERANCE IN HOT PEPPER (CAPSICUM ANNUUM L.)”
Claim · model-written summary
Tata Puri had the highest salt tolerance index, followed by Hot Queen.
- Taxon
- hot pepperCapsicum frutescenst0
- Material
- Tata Purie0
- Outcome
- Salt tolerance indexe0
- Direction
- highe0
- Comparator
- Hot Queene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salt tolerance index was high for Tata Puri followed by Hot Queen”
t0“EVALUATION OF DIFFERENT GROWTH AND PHYSIOLOGICAL TRAITS AS INDICES OF SALT TOLERANCE IN HOT PEPPER (CAPSICUM ANNUUM L.)”
Claim · model-written summary
Changes in relative leaf water content and antioxidant activity correlated strongly with growth traits.
- Taxon
- hot pepperCapsicum frutescenst0
- Organ / stage
- RLWCe0
- Outcome
- dry matter, specific leaf area and relative growth ratese0
- Qualifier
- strongly correlatede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Changes in RLWC and antioxidant activity were strongly correlated with dry matter, specific leaf area and relative growth rates”
t0“EVALUATION OF DIFFERENT GROWTH AND PHYSIOLOGICAL TRAITS AS INDICES OF SALT TOLERANCE IN HOT PEPPER (CAPSICUM ANNUUM L.)”
Claim · model-written summary
Leaf area ratio, chlorophyll content and membrane permeability changes did not correlate with growth traits.
- Taxon
- hot pepperCapsicum frutescenst0
- Organ / stage
- leaf area ratioe0
- Outcome
- growth traitse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“change in leaf area ratio, chlorophyll contents and membrane permeability was not correlated with the growth traits”
t0“EVALUATION OF DIFFERENT GROWTH AND PHYSIOLOGICAL TRAITS AS INDICES OF SALT TOLERANCE IN HOT PEPPER (CAPSICUM ANNUUM L.)”
Claim · model-written summary
The authors proposed RLWC and carotenoid content as reliable salt-tolerance indices.
- Taxon
- hot pepperCapsicum frutescense0
- Outcome
- RLWC and CAR contents can be used as reliable index of salt tolerancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“RLWC and CAR contents can be used as reliable index of salt tolerance in hot pepper”
The same questions in other papers
salinity · growth · Capsicum frutescens (hot pepper)Results agree
5 papers in the same direction as this paper
- negative
- negative
- no effect
2 papers more in this group
See all 6 papers →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.