Volume 13, Issue 4 (2024)
JCP 2024, 13(4): 385-397 |
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Amarlu O A, Mahdian S A, Tajick Ghanbari M A, Mahammadi H. Effect of the foliar fertilizers application on Grapevine trunk diseases. JCP 2024; 13 (4) :385-397
URL: http://jcp.modares.ac.ir/article-3-73132-en.html
URL: http://jcp.modares.ac.ir/article-3-73132-en.html
1- Department of Plant Protection, Faculty of Agronomic Sciences, Sari Agricultural Sciences and Natural Resources University, Sari, Iran. , 21omid234100@gmail.com
2- Department of Plant Protection, Faculty of Agronomic Sciences, Sari Agricultural Sciences and Natural Resources University, Sari, Iran.
3- Department of Plant Protection, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran.
2- Department of Plant Protection, Faculty of Agronomic Sciences, Sari Agricultural Sciences and Natural Resources University, Sari, Iran.
3- Department of Plant Protection, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran.
Abstract: (35 Views)
Grape trunk diseases are critical problems for grapes from the time of planting to the harvest stage. Grapes are susceptible to 29 fungal diseases due to their perennial woody trunk, so identifying and managing them is crucial. Among the methods of controlling these diseases, feeding with mineral fertilizers to reduce leaf symptoms resulting from the toxic secretions of fungi living in the woody part of the tree is of great importance. To manage these diseases, a mixture of fertilizers including calcium chloride CaCl2, 466 g, magnesium nitrate Mg(NO3)2, 403 g, seaweed extract (75 ml) and sterile distilled water 466 ml per liter of foliar spraying on the selected treatments in Sohrabi’s garden were used once every 20 days. Guaiacol peroxidase, catalase and leaf area index were measured in Sohrabi’s garden during 2017 and 2018 and were compared with the control. In the treatments sprayed with the fertilizers, the average amount of guaiacol peroxidase enzyme was 12.72 µl compared to the control (10.6 µl) and the average amount of catalase enzyme was 83.68 µl compared to the control (31.85 µl). The average size of the leaf area in the foliar treatments in Sohrabi’s garden was 11564 mm2, compared to the control that was 4959 mm2. The severity of the disease in the sprayed treatments (19.95 %) was lower than the control (56.6 %). These results are due to the increase in the leaf surface, which increases the amount of photosynthesis, and the increase in guaiacol peroxidase and catalase, which reduce the oxidative stress resulting from fungal secretions, which resulted in decreasing symptoms in foliar treatments.
Article Type: Original Research |
Subject:
Plant Disease Management
Received: 2023/12/27 | Accepted: 2025/01/8 | Published: 2025/01/18
Received: 2023/12/27 | Accepted: 2025/01/8 | Published: 2025/01/18
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