KNO<sub>3</sub>, Nano-Zn, and Fe Foliar Application Influence the Growth and Physiological Responses of <i>Aloe vera</i> under Salinity
<i>Aloe vera</i> L. is a perennial drought-tolerant plant that is commonly used in the pharmaceutical, food, and cosmetic industries. To evaluate the effects of the foliar application of KNO<sub>3</sub>, nano-Zn, and Fe (0 and 2 mgL<sup>−1</sup>) on <i>Aloe...
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| Format: | Article |
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MDPI AG
2022-09-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/12/10/2360 |
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| author | Asghar Ebrahimzadeh Soraya Ghorbanzadeh Lamia Vojodi Mehrabani Erika Sabella Luigi De Bellis Mohammad Bagher Hassanpouraghdam |
| author_facet | Asghar Ebrahimzadeh Soraya Ghorbanzadeh Lamia Vojodi Mehrabani Erika Sabella Luigi De Bellis Mohammad Bagher Hassanpouraghdam |
| author_sort | Asghar Ebrahimzadeh |
| collection | DOAJ |
| description | <i>Aloe vera</i> L. is a perennial drought-tolerant plant that is commonly used in the pharmaceutical, food, and cosmetic industries. To evaluate the effects of the foliar application of KNO<sub>3</sub>, nano-Zn, and Fe (0 and 2 mgL<sup>−1</sup>) on <i>Aloe vera</i> plants under NaCl salinity stress (0, 50, 100 mM), a factorial experiment was conducted based on a completely randomized design. The results revealed that foliar applications influenced the root dry weight. The chlorophyll b content was affected by the salinity plus the foliar application. The total soluble solids content, chlorophyll a, phenolics, and flavonoids of the leaves, the gel content, catalase and superoxide dismutase activity, malondialdehyde, proline, and mineral nutrients content were impacted by the treatments as well. The highest values for the gel content (0.37 g per leaf) and plant dry weight (13.1 g per pot) were recorded at 0 mM NaCl + KNO<sub>3</sub> + nano-Fe. The top K/Na ratio (35.2), and the largest K (69 g kg<sup>−1</sup>), P (6.6 g kg<sup>−1</sup>), Ca (31 g kg<sup>−1</sup>), and Mg (2.5 g kg<sup>−1</sup>) contents were recorded after the 0 mM NaCl + KNO<sub>3</sub> treatment. The highest Fe content (383 g kg<sup>−1</sup>) was observed with 0 mM NaCl + nano-Fe treatment, and the maximum Zn content (37.6 mg kg<sup>−1</sup>) was measured after the 0 mM NaCl + nano Zn treatment. One hundred mM NaCl increased the malondialdehyde and Na contents. The largest amount of catalase activity was measured after the 50 mM NaCl + KNO<sub>3</sub> + nano-Zn treatment. Salinity stress had adverse effects on the growth and physiological responses of <i>Aloe vera.</i> However, the foliar application of KNO<sub>3</sub>, nano-Zn and Fe mitigated the damaging effects of salinity. The results from more detailed studies would be advisable for pioneer farmers and the agricultural sector. |
| first_indexed | 2024-03-09T20:54:23Z |
| format | Article |
| id | doaj.art-4e982106e5194ca9b88fc5b4fcd65af9 |
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| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-09T20:54:23Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-4e982106e5194ca9b88fc5b4fcd65af92023-11-23T22:25:43ZengMDPI AGAgronomy2073-43952022-09-011210236010.3390/agronomy12102360KNO<sub>3</sub>, Nano-Zn, and Fe Foliar Application Influence the Growth and Physiological Responses of <i>Aloe vera</i> under SalinityAsghar Ebrahimzadeh0Soraya Ghorbanzadeh1Lamia Vojodi Mehrabani2Erika Sabella3Luigi De Bellis4Mohammad Bagher Hassanpouraghdam5Department of Horticultural Science, Faculty of Agriculture, University of Maragheh, Maragheh 55181-83111, IranDepartment of Horticultural Science, Faculty of Agriculture, University of Maragheh, Maragheh 55181-83111, IranDepartment of Agronomy and Plant Breeding, Faculty of Agriculture, Azarbaijan Shahid Madani University, Tabriz 53751-71379, IranDepartment of Biological and Environmental Sciences and Technologies, University of Salento, Piazza Tancredi, 7, 73100 Lecce, ItalyDepartment of Biological and Environmental Sciences and Technologies, University of Salento, Piazza Tancredi, 7, 73100 Lecce, ItalyDepartment of Horticultural Science, Faculty of Agriculture, University of Maragheh, Maragheh 55181-83111, Iran<i>Aloe vera</i> L. is a perennial drought-tolerant plant that is commonly used in the pharmaceutical, food, and cosmetic industries. To evaluate the effects of the foliar application of KNO<sub>3</sub>, nano-Zn, and Fe (0 and 2 mgL<sup>−1</sup>) on <i>Aloe vera</i> plants under NaCl salinity stress (0, 50, 100 mM), a factorial experiment was conducted based on a completely randomized design. The results revealed that foliar applications influenced the root dry weight. The chlorophyll b content was affected by the salinity plus the foliar application. The total soluble solids content, chlorophyll a, phenolics, and flavonoids of the leaves, the gel content, catalase and superoxide dismutase activity, malondialdehyde, proline, and mineral nutrients content were impacted by the treatments as well. The highest values for the gel content (0.37 g per leaf) and plant dry weight (13.1 g per pot) were recorded at 0 mM NaCl + KNO<sub>3</sub> + nano-Fe. The top K/Na ratio (35.2), and the largest K (69 g kg<sup>−1</sup>), P (6.6 g kg<sup>−1</sup>), Ca (31 g kg<sup>−1</sup>), and Mg (2.5 g kg<sup>−1</sup>) contents were recorded after the 0 mM NaCl + KNO<sub>3</sub> treatment. The highest Fe content (383 g kg<sup>−1</sup>) was observed with 0 mM NaCl + nano-Fe treatment, and the maximum Zn content (37.6 mg kg<sup>−1</sup>) was measured after the 0 mM NaCl + nano Zn treatment. One hundred mM NaCl increased the malondialdehyde and Na contents. The largest amount of catalase activity was measured after the 50 mM NaCl + KNO<sub>3</sub> + nano-Zn treatment. Salinity stress had adverse effects on the growth and physiological responses of <i>Aloe vera.</i> However, the foliar application of KNO<sub>3</sub>, nano-Zn and Fe mitigated the damaging effects of salinity. The results from more detailed studies would be advisable for pioneer farmers and the agricultural sector.https://www.mdpi.com/2073-4395/12/10/2360minerals contentmalondialdehydeprolinechlorophyllcatalase |
| spellingShingle | Asghar Ebrahimzadeh Soraya Ghorbanzadeh Lamia Vojodi Mehrabani Erika Sabella Luigi De Bellis Mohammad Bagher Hassanpouraghdam KNO<sub>3</sub>, Nano-Zn, and Fe Foliar Application Influence the Growth and Physiological Responses of <i>Aloe vera</i> under Salinity Agronomy minerals content malondialdehyde proline chlorophyll catalase |
| title | KNO<sub>3</sub>, Nano-Zn, and Fe Foliar Application Influence the Growth and Physiological Responses of <i>Aloe vera</i> under Salinity |
| title_full | KNO<sub>3</sub>, Nano-Zn, and Fe Foliar Application Influence the Growth and Physiological Responses of <i>Aloe vera</i> under Salinity |
| title_fullStr | KNO<sub>3</sub>, Nano-Zn, and Fe Foliar Application Influence the Growth and Physiological Responses of <i>Aloe vera</i> under Salinity |
| title_full_unstemmed | KNO<sub>3</sub>, Nano-Zn, and Fe Foliar Application Influence the Growth and Physiological Responses of <i>Aloe vera</i> under Salinity |
| title_short | KNO<sub>3</sub>, Nano-Zn, and Fe Foliar Application Influence the Growth and Physiological Responses of <i>Aloe vera</i> under Salinity |
| title_sort | kno sub 3 sub nano zn and fe foliar application influence the growth and physiological responses of i aloe vera i under salinity |
| topic | minerals content malondialdehyde proline chlorophyll catalase |
| url | https://www.mdpi.com/2073-4395/12/10/2360 |
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