Abstract
Changing climatic conditions have an impact on the commercial harvest and production of Capsicum annuum L. across the world. It is a summer crop that grows best at 21°C (low) to 37 °C (high) temperature. Changes in normal growth, poor shoot and root length, increased antioxidant activity, low sugar content, high proline content, and poor yield were observed in bell pepper at low temperature stress. A research trial was conducted on bell peppers in the Department of Plant Pathology at University of Agriculture, Faisalabad. Bell peppers were cultivated hydroponically and alpha-tocopherol control (0ppm), 25ppm, 50ppm, and 100ppm were applied in foliar application. At the reproductive period, a low temperature stress of 18 °C day and 15 °C night was used given. After seven days of foliar spray, plants were exposed to cold temperatures during the day and night. After seven days of stress, the plants were harvested and morphological, physiological, and biochemical data were examined. Plant growth, leaf area, number of leaves, buds, and flowers, photosynthetic pigments, relative water content, cell membrane permeability, total soluble sugar, total reducing sugar, protein contents, and total free amino acid levels were all reduced when exposed to high temperatures. When the stress of low temperature was applied, there was a rise in proline, phenolic, flavonoid, H2O2, MDA, enzymatic antioxidants SOD, CAT, POD, and in APX. Under temperature stress, foliar application of alpha-tocopherol significantly improved CAT, POD, APX activity, decreased MDA, H2O2, and improved proline content. Exogenously administered alpha-tocopherol was found to be effective in boosting capsicum growth and antioxidant capability under low temperature stress.
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Claims 12
Claim · model-written summary
Reported high-temperature exposure reduced growth, leaf traits, reproductive traits, pigments and water content.
- Taxon
- bell peppert0
- Treatment
- high temperaturese0
- Outcome
- Plant growth, leaf area, number of leavese0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Plant growth, leaf area, number of leaves, buds, and flowers, photosynthetic pigments, relative water content, cell membrane permeability, total soluble sugar, total reducing sugar, protein contents, and total free amino acid levels were all reduced when exposed to high temperatures.”
t0“Bell Pepper”
Claim · model-written summary
Reported high-temperature exposure reduced buds, flowers and photosynthetic pigments.
- Taxon
- bell peppert0
- Treatment
- high temperaturese0
- Outcome
- buds, and flowers, photosynthetic pigmentse0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Plant growth, leaf area, number of leaves, buds, and flowers, photosynthetic pigments, relative water content, cell membrane permeability, total soluble sugar, total reducing sugar, protein contents, and total free amino acid levels were all reduced when exposed to high temperatures.”
t0“Bell Pepper”
Claim · model-written summary
Reported high-temperature exposure reduced relative water content, membrane permeability and soluble sugar.
- Taxon
- bell peppert0
- Treatment
- high temperaturese0
- Outcome
- relative water content, cell membrane permeability, total soluble sugare0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Plant growth, leaf area, number of leaves, buds, and flowers, photosynthetic pigments, relative water content, cell membrane permeability, total soluble sugar, total reducing sugar, protein contents, and total free amino acid levels were all reduced when exposed to high temperatures.”
t0“Bell Pepper”
Claim · model-written summary
Reported high-temperature exposure reduced reducing sugar, protein and free amino acid levels.
- Taxon
- bell peppert0
- Treatment
- high temperaturese0
- Outcome
- total reducing sugar, protein contents, and total free amino acid levelse0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Plant growth, leaf area, number of leaves, buds, and flowers, photosynthetic pigments, relative water content, cell membrane permeability, total soluble sugar, total reducing sugar, protein contents, and total free amino acid levels were all reduced when exposed to high temperatures.”
t0“Bell Pepper”
Claim · model-written summary
Low-temperature stress raised proline, phenolic and flavonoid levels.
- Taxon
- bell peppert0
- Treatment
- stress of low temperaturee0
- Outcome
- proline, phenolic, flavonoide0
- Direction
- risee0
Not reportedComparator
Verbatim
e0“When the stress of low temperature was applied, there was a rise in proline, phenolic, flavonoid, H2O2, MDA, enzymatic antioxidants SOD, CAT, POD, and in APX.”
t0“Bell Pepper”
Claim · model-written summary
Low-temperature stress raised H2O2 and MDA.
Not reportedComparator
Verbatim
e0“When the stress of low temperature was applied, there was a rise in proline, phenolic, flavonoid, H2O2, MDA, enzymatic antioxidants SOD, CAT, POD, and in APX.”
t0“Bell Pepper”
Claim · model-written summary
Low-temperature stress raised SOD, CAT and POD antioxidants.
Not reportedComparator
Verbatim
e0“When the stress of low temperature was applied, there was a rise in proline, phenolic, flavonoid, H2O2, MDA, enzymatic antioxidants SOD, CAT, POD, and in APX.”
t0“Bell Pepper”
Claim · model-written summary
Low-temperature stress raised APX.
Not reportedComparator
Verbatim
e0“When the stress of low temperature was applied, there was a rise in proline, phenolic, flavonoid, H2O2, MDA, enzymatic antioxidants SOD, CAT, POD, and in APX.”
t0“Bell Pepper”
Claim · model-written summary
Alpha-tocopherol significantly improved CAT, POD and APX activity under temperature stress.
- Taxon
- bell peppert0
- Treatment
- foliar application of alpha-tocopherole0
- Outcome
- CAT, POD, APX activitye0
- Direction
- improvede0
Not reportedComparator
Verbatim
e0“Under temperature stress, foliar application of alpha-tocopherol significantly improved CAT, POD, APX activity, decreased MDA, H2O2, and improved proline content.”
t0“Bell Pepper”
Claim · model-written summary
Alpha-tocopherol reduced MDA and H2O2 under temperature stress.
- Taxon
- bell peppert0
- Treatment
- foliar application of alpha-tocopherole0
- Outcome
- MDA, H2O2e0
- Direction
- decreasede0
Not reportedComparator
Verbatim
e0“Under temperature stress, foliar application of alpha-tocopherol significantly improved CAT, POD, APX activity, decreased MDA, H2O2, and improved proline content.”
t0“Bell Pepper”
Claim · model-written summary
Alpha-tocopherol improved proline content under temperature stress.
- Taxon
- bell peppert0
- Treatment
- foliar application of alpha-tocopherole0
- Outcome
- proline contente0
- Direction
- improvede0
Not reportedComparator
Verbatim
e0“Under temperature stress, foliar application of alpha-tocopherol significantly improved CAT, POD, APX activity, decreased MDA, H2O2, and improved proline content.”
t0“Bell Pepper”
Claim · model-written summary
Alpha-tocopherol boosted pepper growth and antioxidant capability under low temperature stress.
- Taxon
- bell peppert0
- Treatment
- Exogenously administered alpha-tocopherole0
- Outcome
- capsicum growth and antioxidant capabilitye0
- Direction
- boostinge0
Not reportedComparator
Verbatim
e0“Exogenously administered alpha-tocopherol was found to be effective in boosting capsicum growth and antioxidant capability under low temperature stress.”
t0“Bell Pepper”
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