Efficacy of Selected Plant Extracts in the Management of Tomato
Early Blight Disease Caused by Alternaria solani

Joseph, Abiodun; Ese, Efe-Imafidon Akere; Ademiluyi, Benson Oluwafemi

doi:10.3923/ajppaj.2017.48.52

Cited by 8 publications

(5 citation statements)

References 11 publications

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“…BEs also have been considered as an effective alternative for plant pathogen control and stress mitigation in recent years (Joseph et al, 2017;Van Oosten et al, 2017). Rongai et al (2017) observed that BE from pomegranate (Punica granatum) peels showed antifungal activity on F. oxysporum f. sp.…”

mentioning

confidence: 99%

Mitigation of the Impact of Vascular Wilt and Soil Hypoxia on Cape Gooseberry Plants by Foliar Application of Synthetic Elicitors

Chávez-Arias¹,

Gómez-Caro²,

Restrepo-Díaz³

2020

horts

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Physalis peruviana L. crops are exposed to different stress conditions that limit their productivity. Within these conditions, abiotic stress caused by water and biotic stress by Fusarium oxysporum f. sp. physali (Foph) are frequent at commercial levels. The foliar application of synthetic elicitors can be a tool to mitigate the negative impacts of these stresses. The objective of this study was to evaluate the interaction between Foph inoculation and three foliar applications of brassinosteroids (BR), salicylic acid (SA), and a commercial elicitor based on botanical extracts (BE) of Echinacea purpurea, Potentilla erecta, and Aloe vera on the physiological [stomatal conductance (gS), leaf water potential (Ψwf), chlorophyll fluorescence, and growth] and biochemical [photosynthetic pigments, malondialdehyde (MDA) production, and proline content] responses of cape gooseberry plants subjected to a 6-day waterlogging period. The established treatments were as follows: 1) waterlogged plants without Foph; 2) waterlogged plants with Foph; 3) waterlogged, noninoculated (Foph−) plants treated foliarly with BR, SA, or BE; and 4) waterlogged, inoculated (Foph+) plants treated foliarly with BR, SA, or BE. The results showed that the foliar application of BR or SA reduced vascular wilt development in plants subjected to a hypoxia period. In addition, three applications of BR, SA, or BE favored gS, Ψwf, growth, and chlorophyll fluorescence parameters in cape gooseberry plants under the interaction between Foph and oxygen deficit in the soil. Also, higher photosynthetic pigment and proline contents were observed in plants treated with elicitors under stress combination, whereas a lower MDA production was evidenced in this group of plants. In conclusion, BR, SA, or BE can help mitigate the negative effects of the simultaneous occurrence of Foph and a waterlogging condition for 6 days in cape gooseberry plants.

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confidence: 99%

Mitigation of the Impact of Vascular Wilt and Soil Hypoxia on Cape Gooseberry Plants by Foliar Application of Synthetic Elicitors

Chávez-Arias¹,

Gómez-Caro²,

Restrepo-Díaz³

2020

horts

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“…Pinworm numbers were significantly higher in control (6) (P = 0.05) than the other treatments. Numerous leaf damage was observed in control (20) which differed significantly (P = 0.05) across treatments. More fruit damage was seen in control (14) and differed significantly (P = 0.05) from the other treatments.…”

mentioning

confidence: 95%

“…Therefore, plant disease/pest management alternatives that are environmentally friendly, without side effects on humans, and economically affordable to farmers are needed to improve yield and fruit quality [20] [21] [22]. Plant bioactive extracts are known to have anti-microbial and anti-insecticidal properties which are ecologically friendly, available, durable, affordable and effective for pest/disease management.…”

Section: Introductionmentioning

confidence: 99%

Botanicals, as a Sustainable Agroecological Alternative to Synthetic Pesticide for Controlling Leaf Miner (Pinworm) and Fusarium Wilt Disease of Tomato

Oben,

Arrey,

Mbah

et al. 2023

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“…Tomato (Solanum lycopersicum L.) is an economical prime vegetable, cultivated in all parts of the world (Joseph et al, 2017). Tomato is considered a model crops species, belonging to the Solanaceae family (Zakawa et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

First Report of Curvularia Lunata and Alternaria Alternata Causing Leaf Blights on Tomatoes in Sindh, Pakistan

Magsi,

Saand,

Kalwar

et al. 2024

Pak. J. Biotechnol

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The tomato is an economically important crop that grows worldwide. The numerous fungal pathogens attacking tomato crops and causing severe diseases lead to yield loss. A few studies conducted regarding the identification of tomato fungal pathogens in Pakistan. However, no report was found to identify the fungal pathogens of tomato crops grown in Sindh. This study aimed to isolate, identify and characterize the tomato fungal pathogens in District Kamber Shahdadkot. Subsequently, thirty diseased tomato plant samples (leaves & stems) were collected from distinct villages of Taluka Kamber District Kamber Shahdadkot. These samples were collected in polythene bags and marked with symbols like S1, S2 and so on (S=Sample). All samples were brought into Botany Department lab and CBC Shah Abdul Latif University Khairpur. PDA media was prepared, sterilized and poured into petri plates. Prior to the inoculation, pieces from samples were soaked in a 1% solution of sodium hypochlorite (NaOCl) for a minute. The petri plates were inoculated separately and incubated at natural room temperature (260C to 280C) for arising and growth. Three days later, the inoculation site manifests signs and symptoms of fungal development. Within a week fungus reached at preferable growth and spores were formed. Two slides from each petriplate were prepared i. e. one from the center of the cultures and other from the margins of the cultures. In order to finish this application, slide-sized scotch tape was cut up and immersed on the surface of cultures gently. The off cuts of the scotch tap introduced the fungal materials (mycelia and spores), which were pressed with love to the glass slides and observed. The fungi identification was made by using applications of morphological characteristics like morphology of the cultures, nature, and type of the mycelium, the shape of spores, and the color of the spores. Following these characters two fungal species were identified i. e. Curvularia lunata and Alternaria alternata

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Efficacy of Selected Plant Extracts in the Management of Tomato Early Blight Disease Caused by Alternaria solani

Cited by 8 publications

References 11 publications

Mitigation of the Impact of Vascular Wilt and Soil Hypoxia on Cape Gooseberry Plants by Foliar Application of Synthetic Elicitors

Mitigation of the Impact of Vascular Wilt and Soil Hypoxia on Cape Gooseberry Plants by Foliar Application of Synthetic Elicitors

Botanicals, as a Sustainable Agroecological Alternative to Synthetic Pesticide for Controlling Leaf Miner (Pinworm) and Fusarium Wilt Disease of Tomato

First Report of Curvularia Lunata and Alternaria Alternata Causing Leaf Blights on Tomatoes in Sindh, Pakistan

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