Abstract
Pomegranate (Punica granatum L.) fruit quality depends on many traits including visual, biochemical and mineral characteristics. One of the negative traits is aril whitening (AW) which is a frequently observed disorder in hot and dry climates, that leads to decline in desirable fruit quality. Color, antioxidant, and mineral contents of the arils are of prime importance as quality traits. Therefore, this study aims to investigate the effect of shading and foliar minerals on fruit quality during the fruit development stages of pomegranate. Treatments included shaded (50% green net) and unshaded trees and foliar application of trees with potassium sulfate (K, 1% and 2%) or sodium silicate (Si, 0.05, 0.1 and 0.15%) during two growing seasons. Results showed that the severity of AW at harvest decreased significantly when trees were covered with shading compared to control. The color values of L* and ⁰hue for arils were lower in fruits grown under shading conditions indicating darker red arils. Shading significantly reduced chilling injury in cold storage compared to open field fruits. Shading and Si 0.15% increased superoxide dismutase, and catalase enzymes activity while decreased Polyphenol oxidase and peroxidase. Covering trees with shading and Si 0.15% spray resulted in the highest total anthocyanin, antioxidant activity, and total phenolics content in the arils. Shading as well as Si 0.15% increased macronutrients content of the arils. The study concluded that covering pomegranate trees and spraying with Si in hot climate reduced AW, increased antioxidant traits, and led to higher fruit quality.
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Claims 7
Claim · model-written summary
Shading significantly decreased the severity of aril whitening at harvest in pomegranate compared with control trees.
- Taxon
- pomegranate
Punica granatumt0 - Material
- cv. Ghojaght0
- Treatment
- covered with shadinge1
- Outcome
- severity of AW at harveste1
- Direction
- decreasede1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pomegranate cv. Ghojagh”
e1“Results showed that the severity of AW at harvest decreased significantly when trees were covered with shading compared to control”
Claim · model-written summary
Under shading, the L* and hue color values of pomegranate arils were lower, indicating darker red arils.
- Taxon
- pomegranatePunica granatumt0
- Material
- cv. Ghojaght0
- Organ / stage
- arilse2
- Treatment
- under shading conditionse2
- Outcome
- color values of L* and ⁰hue for arilse2
- Direction
- lowere2
- Qualifier
- indicating darker red arilse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pomegranate cv. Ghojagh”
e2“The color values of L* and ⁰hue for arils were lower in fruits grown under shading conditions indicating darker red arils”
Claim · model-written summary
Shading significantly reduced chilling injury of pomegranate in cold storage compared with open field fruits.
- Taxon
- pomegranatePunica granatumt0
- Material
- cv. Ghojaght0
- Treatment
- Shadinge3
- Outcome
- chilling injury in cold storagee3
- Direction
- reducede3
- Comparator
- open field fruitse3
- Setting
- cold storagee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pomegranate cv. Ghojagh”
e3“Shading significantly reduced chilling injury in cold storage compared to open field fruits”
Claim · model-written summary
Shading and Si 0.15% spray increased superoxide dismutase and catalase enzyme activity in pomegranate.
- Taxon
- pomegranatePunica granatumt0
- Material
- cv. Ghojaght0
- Treatment
- Shading and Si 0.15%e4
- Gene
- superoxide dismutasee4
- Outcome
- superoxide dismutase, and catalase enzymes activitye4
- Direction
- increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pomegranate cv. Ghojagh”
e4“Shading and Si 0.15% increased superoxide dismutase, and catalase enzymes activity while decreased Polyphenol oxidase and peroxidase”
Claim · model-written summary
Shading and Si 0.15% spray decreased polyphenol oxidase and peroxidase activity in pomegranate.
- Taxon
- pomegranatePunica granatumt0
- Material
- cv. Ghojaght0
- Treatment
- Shading and Si 0.15%e4
- Gene
- Polyphenol oxidasee4
- Outcome
- Polyphenol oxidase and peroxidasee4
- Direction
- decreasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pomegranate cv. Ghojagh”
e4“Shading and Si 0.15% increased superoxide dismutase, and catalase enzymes activity while decreased Polyphenol oxidase and peroxidase”
Claim · model-written summary
Covering pomegranate trees with shading and Si 0.15% spray gave the highest total anthocyanin, antioxidant activity and total phenolics content in the arils.
- Taxon
- pomegranatePunica granatumt0
- Material
- cv. Ghojaght0
- Organ / stage
- arilse5
- Treatment
- Covering trees with shading and Si 0.15% spraye5
- Outcome
- total anthocyanin, antioxidant activity, and total phenolics contente5
- Direction
- higheste5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pomegranate cv. Ghojagh”
e5“Covering trees with shading and Si 0.15% spray resulted in the highest total anthocyanin, antioxidant activity, and total phenolics content in the arils”
Claim · model-written summary
Shading and Si 0.15% increased macronutrient content of pomegranate arils.
- Taxon
- pomegranatePunica granatumt0
- Material
- cv. Ghojaght0
- Organ / stage
- arilse6
- Treatment
- Shading as well as Si 0.15%e6
- Outcome
- macronutrients contente6
- Direction
- increasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“pomegranate cv. Ghojagh”
e6“Shading as well as Si 0.15% increased macronutrients content of the arils”
The same questions in other papers
silicon atom · nutrient: content · Punica granatum (pomegranate)Results agree
1 paper in the same direction as this paper
- positive
application · quality: phytochemicals · Punica granatum (pomegranate)Positive and negative results
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- no effect
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1 paper in the same direction as this paper
- positive
shade · quality: postharvest · Punica granatum (pomegranate)Results agree
2 papers in the same direction as this paper
- positive
- 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.