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Volume 13
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10.3390/plants13020252
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Article

Evaluation of Five Chrysanthemum morifolium Cultivars against Leaf Blight Disease Caused by Alternaria alternata at Rooting and Seedling Growth Stages

by
Mayada K. Seliem
1,
Naglaa A. Taha
2,
Nahla I. El-Feky
2,
Khaled Abdelaal
3,
Hassan El-Ramady
4,*,
Mohammed E. El-Mahrouk
5 and
Yousry A. Bayoumi
5,*
1
Ornamental and Floriculture Department, Horticulture Research Institute, El-Sabahia, Alexandria 21599, Egypt
2
Plant Pathology Research Institute, Agriculture Research Center, Giza 12619, Egypt
3
EPCRS Excellence Center, Plant Pathology and Biotechnology Lab., Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt
4
Soil and Water Department, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt
5
Horticulture Department, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt
*
Authors to whom correspondence should be addressed.
Plants 2024, 13(2), 252; https://doi.org/10.3390/plants13020252
Submission received: 26 December 2023 / Revised: 12 January 2024 / Accepted: 13 January 2024 / Published: 16 January 2024
(This article belongs to the Special Issue Epidemiology and Control of Plant Diseases II)
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Abstract

During the winter of 2018, leaf blight on florist’s daisy (Chrysanthemum morifolium L.) was noticed in Egypt. The disease, which was identified as caused by Alternaria alternata, was widely spread and led to serious damage for the exportation sector of this crop. Therefore, a study was conducted to better understand what can be conducted to minimize the problem in the future. Isolates were gathered and evaluated on five chrysanthemum cultivars (i.e., ‘Feeling Green Dark’, ‘Talitha’, ‘Chrystal Regan’, ‘Arctic queen’, and ‘Podolsk Purple’) grown in a greenhouse. The objectives were to isolate and identify the phytopathogen and detect the resistant degree of these cultivars with emphasis on the early growth stages of the crop. The results showed that ‘Podolsk Purple’ was the most resistant cultivar against the different isolates during the rooting and seedling growth stages. ‘Chrystal Regan’ was very susceptible to the different isolates. In addition, the isolate from ‘Feeling Green Dark’ was the strongest, which negatively affected the chlorophyll content and its fluorescence parameters besides other measured vegetative and anatomical features. The findings indicated that the best anatomical characters of the stem and leaf, like the thickness of cuticle and cortex, stem diameter, xylem vessel diameter, and thickness of epidermis as well as lamina thickness were recorded in the ‘Podolsk Purple’ cultivar. This study highlighted that by using the right cultivars, chrysanthemum can be cultivated during the winter season under Egyptian conditions. These results can be a part of solution to overcome the leaf blight caused by A. alternata on chrysanthemum during the early growing stages.
Keywords: florist’s daisy; phytopathogen; antioxidants; photosynthetic rate; climate change; chlorophyll fluorescence; histological parameters florist’s daisy; phytopathogen; antioxidants; photosynthetic rate; climate change; chlorophyll fluorescence; histological parameters

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MDPI and ACS Style

Seliem, M.K.; Taha, N.A.; El-Feky, N.I.; Abdelaal, K.; El-Ramady, H.; El-Mahrouk, M.E.; Bayoumi, Y.A. Evaluation of Five Chrysanthemum morifolium Cultivars against Leaf Blight Disease Caused by Alternaria alternata at Rooting and Seedling Growth Stages. Plants 2024, 13, 252. https://doi.org/10.3390/plants13020252

AMA Style

Seliem MK, Taha NA, El-Feky NI, Abdelaal K, El-Ramady H, El-Mahrouk ME, Bayoumi YA. Evaluation of Five Chrysanthemum morifolium Cultivars against Leaf Blight Disease Caused by Alternaria alternata at Rooting and Seedling Growth Stages. Plants. 2024; 13(2):252. https://doi.org/10.3390/plants13020252

Chicago/Turabian Style

Seliem, Mayada K., Naglaa A. Taha, Nahla I. El-Feky, Khaled Abdelaal, Hassan El-Ramady, Mohammed E. El-Mahrouk, and Yousry A. Bayoumi. 2024. "Evaluation of Five Chrysanthemum morifolium Cultivars against Leaf Blight Disease Caused by Alternaria alternata at Rooting and Seedling Growth Stages" Plants 13, no. 2: 252. https://doi.org/10.3390/plants13020252

APA Style

Seliem, M. K., Taha, N. A., El-Feky, N. I., Abdelaal, K., El-Ramady, H., El-Mahrouk, M. E., & Bayoumi, Y. A. (2024). Evaluation of Five Chrysanthemum morifolium Cultivars against Leaf Blight Disease Caused by Alternaria alternata at Rooting and Seedling Growth Stages. Plants, 13(2), 252. https://doi.org/10.3390/plants13020252

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