Kaolin Improves Photosynthetic Pigments, and Antioxidant Content, and Decreases Sunburn of Mangoes: Field Study
The Keitt mango tree has a low canopy that leads to an increase in sunburned fruits. Hence, the fruit quality is markedly reduced due to the fruit being exposed to physiological disorders. The sunburn injury problem is common due to high levels of solar radiation and the low number of leaves, which...
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| Format: | Article |
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MDPI AG
2022-06-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/12/7/1535 |
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| author | Ashraf E. Hamdy Hosny F. Abdel-Aziz Haitham El-khamissi Nada Ibrahim AlJwaizea Ahmed Abou El-Yazied Samy Selim Moataz M. Tawfik Khadiga AlHarbi Mohamed S. M. Ali Amr Elkelish |
| author_facet | Ashraf E. Hamdy Hosny F. Abdel-Aziz Haitham El-khamissi Nada Ibrahim AlJwaizea Ahmed Abou El-Yazied Samy Selim Moataz M. Tawfik Khadiga AlHarbi Mohamed S. M. Ali Amr Elkelish |
| author_sort | Ashraf E. Hamdy |
| collection | DOAJ |
| description | The Keitt mango tree has a low canopy that leads to an increase in sunburned fruits. Hence, the fruit quality is markedly reduced due to the fruit being exposed to physiological disorders. The sunburn injury problem is common due to high levels of solar radiation and the low number of leaves, which minimizes the protection of small, newly formed fruits. Kaolin spray has emerged as a promising approach for mango trees since it improves vegetative growth, yield, and fruit quality in new lands. This search aimed to study the influence of spraying kaolin on Keitt mango trees grafted on ‘Succary’ rootstock. The treatments were as follows: control, 2%, 4%, and 6% of kaolin. Our results indicated that the applications of kaolin significantly improved leaf area, tree canopy volume, photosynthesis pigments such as chlorophyll-a and b, carotenoids of leaf and yield (kg/tree), and the physical and chemical characteristics of Keitt mango cultivar in comparison with the control. A higher concentration of kaolin decreased the leaf content of antioxidants such as total phenolic, total flavonoid, CAT, POX, and PPO enzyme activities. Furthermore, the number of sunburned fruits was significantly reduced after the application of kaolin in comparison to control fruits. Regarding vegetative growth, our results indicated that adding kaolin at 6% enhanced the leaf surface area and tree canopy volume compared to the control and other treatments. A similar trend was noticed regarding yield and fruit quality, whereas the best values were obtained when kaolin was sprayed at a concentration of 6%. In conclusion, the application of kaolin can improve the production and fruit quality of Keitt mango trees by reducing the effects of adverse summer conditions. |
| first_indexed | 2024-03-09T12:22:47Z |
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| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-09T12:22:47Z |
| publishDate | 2022-06-01 |
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| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-65302c7eb0ca432babec26d9917f20de2023-11-30T22:38:15ZengMDPI AGAgronomy2073-43952022-06-01127153510.3390/agronomy12071535Kaolin Improves Photosynthetic Pigments, and Antioxidant Content, and Decreases Sunburn of Mangoes: Field StudyAshraf E. Hamdy0Hosny F. Abdel-Aziz1Haitham El-khamissi2Nada Ibrahim AlJwaizea3Ahmed Abou El-Yazied4Samy Selim5Moataz M. Tawfik6Khadiga AlHarbi7Mohamed S. M. Ali8Amr Elkelish9Horticulture Department, Faculty of Agriculture, Al-Azhar University, Cairo 11651, EgyptHorticulture Department, Faculty of Agriculture, Al-Azhar University, Cairo 11651, EgyptDepartment of Agriculture Biochemistry, Faculty of Agriculture, Al-Azhar University, Cairo 11651, EgyptDepartment of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi ArabiaDepartment of Horticulture, Faculty of Agriculture, Ain Shams University, Cairo 11566, EgyptDepartment of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka 72388, Saudi ArabiaBotany Department, Faculty of Science, Port Said University, Port Said 42526, EgyptDepartment of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi ArabiaDepartment of Horticulture, Faculty of Agriculture, Suez Canal University, Ismailia 41522, EgyptBotany Department, Faculty of Science, Suez Canal University, Ismailia 41522, EgyptThe Keitt mango tree has a low canopy that leads to an increase in sunburned fruits. Hence, the fruit quality is markedly reduced due to the fruit being exposed to physiological disorders. The sunburn injury problem is common due to high levels of solar radiation and the low number of leaves, which minimizes the protection of small, newly formed fruits. Kaolin spray has emerged as a promising approach for mango trees since it improves vegetative growth, yield, and fruit quality in new lands. This search aimed to study the influence of spraying kaolin on Keitt mango trees grafted on ‘Succary’ rootstock. The treatments were as follows: control, 2%, 4%, and 6% of kaolin. Our results indicated that the applications of kaolin significantly improved leaf area, tree canopy volume, photosynthesis pigments such as chlorophyll-a and b, carotenoids of leaf and yield (kg/tree), and the physical and chemical characteristics of Keitt mango cultivar in comparison with the control. A higher concentration of kaolin decreased the leaf content of antioxidants such as total phenolic, total flavonoid, CAT, POX, and PPO enzyme activities. Furthermore, the number of sunburned fruits was significantly reduced after the application of kaolin in comparison to control fruits. Regarding vegetative growth, our results indicated that adding kaolin at 6% enhanced the leaf surface area and tree canopy volume compared to the control and other treatments. A similar trend was noticed regarding yield and fruit quality, whereas the best values were obtained when kaolin was sprayed at a concentration of 6%. In conclusion, the application of kaolin can improve the production and fruit quality of Keitt mango trees by reducing the effects of adverse summer conditions.https://www.mdpi.com/2073-4395/12/7/1535<i>Mangifera indica</i> L.mangokaolinsunburnfruit qualityyield increasing |
| spellingShingle | Ashraf E. Hamdy Hosny F. Abdel-Aziz Haitham El-khamissi Nada Ibrahim AlJwaizea Ahmed Abou El-Yazied Samy Selim Moataz M. Tawfik Khadiga AlHarbi Mohamed S. M. Ali Amr Elkelish Kaolin Improves Photosynthetic Pigments, and Antioxidant Content, and Decreases Sunburn of Mangoes: Field Study Agronomy <i>Mangifera indica</i> L. mango kaolin sunburn fruit quality yield increasing |
| title | Kaolin Improves Photosynthetic Pigments, and Antioxidant Content, and Decreases Sunburn of Mangoes: Field Study |
| title_full | Kaolin Improves Photosynthetic Pigments, and Antioxidant Content, and Decreases Sunburn of Mangoes: Field Study |
| title_fullStr | Kaolin Improves Photosynthetic Pigments, and Antioxidant Content, and Decreases Sunburn of Mangoes: Field Study |
| title_full_unstemmed | Kaolin Improves Photosynthetic Pigments, and Antioxidant Content, and Decreases Sunburn of Mangoes: Field Study |
| title_short | Kaolin Improves Photosynthetic Pigments, and Antioxidant Content, and Decreases Sunburn of Mangoes: Field Study |
| title_sort | kaolin improves photosynthetic pigments and antioxidant content and decreases sunburn of mangoes field study |
| topic | <i>Mangifera indica</i> L. mango kaolin sunburn fruit quality yield increasing |
| url | https://www.mdpi.com/2073-4395/12/7/1535 |
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