Abdelhak Rhouma

Abdelhak Rhouma
High Agronomic Institute of Chott Mariem | ISA-CM · Research Unit of Horticulture, Landscape and Environment

PhD in Plant Health and Environment Protection

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36
Publications
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Publications

Publications (36)
Article
Powdery mildew is one of the most important diseases that causes significant economic losses in melon. Chemical fungicides and tolerant melon varieties, which may reduce pathogen severity and encourage positive plant responses, are viable techniques for controlling this disease. The study objectives were to investigate the effectiveness of contact...
Article
Full-text available
Alternaria alternata, responsible for Alternaria leaf spot, is spread worldwide, notably in Iraq. This disease is characterized by lesion formation on the leaves, leading to substantial yield and quality losses in several plant species such as Cucumis melo (melon). Glomus mosseae and Trichoderma harzianum are considered eco-friendly and bio-safe al...
Article
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Life on Earth is exposed to a variety of light spectrum from ultraviolet-B to wavelengths, called natural radiation. The electromagnetic spectrum ultraviolet (UV) consists of 3 classes: UV-A (315-400 nm), UV-B (280-315 nm) and UV-C (200-280 nm), with UV-A and UV-B reaching only the surface of the earth. UV radiation affects plants and fungal pathog...
Article
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In recent years, the emergence of downy mildew had a significant impact on the production of cucurbits and disease control systems at multiple scales. Downy mildews wreak havoc on vital crops around the world, causing massive production losses. In order to achieve successful disease control, accurate identification and monitoring of these plant pat...
Article
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Fusarium wilt disease caused by Fusarium oxysporum f. sp. cucumerinum is a severe disease of cucumbers causing yield losses worldwide. Various experiments were conducted to assess the antifungal potential of fungal bio-agents isolated from soil and cucumber seed (bio-priming). Trichoderma koningii seemed to be the most effective bio-agent against F...
Article
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This research was carried out to assess the potential impacts of arbuscular mycorrhizal fungi (AMF) complex (Glomus geosporum and Rhizophagus irregularis) synergy with poultry manure (PM) on the survival of Cucurbita maxima and Telfairia occidentalis grown under salt stress conditions. This experiment was set up in a completely randomized design wi...
Article
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Grapevine is an important fruit crop grown in the Chott Sidi Abdel Salam oasis in south eastern Tunisia. It provides great economic potential for the oasis population due to its higher yield and monetary returns. It, also, has a good nutritional value and is consumed fresh or in dried form. Powdery mildew represents one of the most destructive dise...
Technical Report
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Cucurbits are one of the most valuable vegetable crops worldwide, and a large number of annual species are under cultivation. Plant pathogens challenge our efforts to maximize crop production. More than 200 known pathogens are infecting various cucurbits. Fungi, bacteria and other pathogens attack different parts of cucurbitaceous plants, causing d...
Technical Report
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Peach leaf curl is caused by Taphrina deformans, a biotrophic parasitic fungus. About 90% of the peach acres are treated for this destructive disease. Leaves produced in the spring are deformed, thickened, curled, and colored red or yellow instead of normal green. Severely affected shoots die. Irregular reddish lesions are sometimes seen on the fru...
Technical Report
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Among the fungal diseases affecting tomato crops, early blight caused by Alternaria solani Ellis and Martin is considered as one of the most devastating disease leading to an accountable losses. Early blight shows up as leaf blight on the lower part of plants. The disease moves upward, and by early to midsummer , early blight has caused a "firing-u...
Technical Report
Full-text available
Charcoal rot of cucurbits is a serious disease spreading all around the world. Therefore, this technical document summarizes the current knowledge of cucurbits charcoal rot disease epidemiology, symptoms and signs, disease cycle, ecology and disease management strategies. Charcoal rot disease is caused by the pathogenic fungus Macrophomina phaseoli...
Article
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The Gabes oasis in the southeastern Tunisia is particularly important as it represents a unique coastal oases in the Mediterranean and the world. Chott Sidi Abdel Salam oasis, with an area of approximately 100 ha, was chosen for this study (2018–2019). Aiming to effectively manage and protect the biodiversity of this coastal oasis, the cultivated v...
Article
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Eggplant, an important vegetable crop in Iraq, faces yield losses due to early blight disease caused by Alternaria solani. Two antagonistic fungi (Aspergillus niger and Purpureocillium lilacinum) isolated from eggplant rhizosphere were tested in vitro (dual confrontation technique) and in vivo (preventive treatments) as potential bioagents against...
Technical Report
Full-text available
Downy mildew is a common problem in soybean [Glycine max (L.) Merill] which grown in field conditions but is rarely seen in greenhouses. Soybean downy mildew, caused by fungus-like organism Peronospora manshurica (Class Oomycetes; Phylum Oomycota), is a widely spread disease and can survive in crop residues and on the seed surfaces. P. manshurica h...
Technical Report
Full-text available
Mint plants (Mentha spp.) which belong to the family: Lamiaceae is one of the common vegetable crops which planted in different countries around the world. It's an important food source in addition to its medicinal and industrial uses. It was infected by many fungal diseases including rust disease which caused by the obligate parasite fungus Puccin...
Article
Alternaria solani, causal agent of eggplant early blight, is an important airborne pathogen responsible annually of regrettable losses and reduction in total yield. Fungicide treatments are widely used being the most effective for controlling this disease. It is well acknowledged that the prolonged use of fungicides often causes health risks to hum...
Technical Report
Full-text available
Abdelhak Rhouma, Yehya A. Salih, Khaled Atallaoui and Mohammad Imad Khrieba 2021. Technical document on powdery mildew and anthracnose of Mentha spp. Asian Journal of Plant and Soil Sciences, 6(1): 39-45 (Indexed in Publons, Google Scholar, etc.). https://www.ikprress.org/index.php/AJOPSS/article/view/6967 Mentha spp. (locally named mint or spearmi...
Article
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The eggplant production has gone through increasing difficulties due to relatively low yields in the last few years in Iraq. Alternaria solani, the causal agent of eggplant early blight; attacks hybrid and local varieties either in open field or in the greenhouse, causing a serious damage that led to decrease in crop yield. The strategies employed...
Article
Full-text available
Several pathogens fungi responsible for total yield losses are worldwide spread notably in Iraq. The alternatives strategies to decrease disease development are those able to destruct a total or partial population density using eco-friendly approach treatments. In this investigation, we demonstrate the symbiotic interaction with Trichoderma koningi...
Article
Full-text available
Alternaria solani responsible for early blight of eggplant is a worldwide spread notably in Iraq. The use of biological control agents represents the best alternative and eco-friendly approach. Two soil-borne fungal (Paecilomyces lilacinus and Trichoderma harzianum) were tested in laboratory conditions using the dual confrontation technique at diff...
Book
Full-text available
Le palmier dattier (Phoenix dactylifera L.) constitue, pour les régions sahariennes et présahariennes l'élément essentiel de l'écosystème oasien où son rôle est vital non seulement en raison de son importance économique, mais aussi de sa grande adaptation écologique. La présence du palmier dattier au milieu du désert a permis de créer un microclima...
Article
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Recently, a wide range of symptoms including light yellow lesions gradually turning into brown stripes were noticed on date palm leaves in Iraq. In this context, the aim of this study were to isolate the phytopathogens associated with these symptoms, evaluate their pathogenicity and assess the efficacy of two fungicides (Score and Pentanol) under i...
Article
Full-text available
In this study, nine fungal species belonging to genus Aspergillus (6) and Penicillium (3), which were found on whiteflies cadavers adults collected from cucumber cultivation fields in Basra Iraq, are characterized regarding mycelial growth rate at different culture media, pH levels and temperature degrees, and their sensitivity under in vitro assay...
Article
The Chott Sidi Abdel Salam oasis has natural assets that have led to the development of various human activities in this oasis. However, this oasis currently suffers from overpressures on natural and human resources. Therefore, the condition of this oasis was assessed based on an investigation of and discussions with 100 farmers as well as study re...
Article
Full-text available
The objective of this study was to isolate and identify the pathogen cause yellowing and Spotting of the detached leaves of date palm and efficiency of Chemical Pesticides to control Spotting and Yellowing of Palm Tissues. The isolation and identification results showed presence of Fusarium spp. and Alternaria fungus from infected roots of infected...
Book
Full-text available
L'explosion démographique constitue un phénomène majeur à l'échelle de notre planète. Ainsi, la centralisation des populations en croissance dans les villes rend l'environnement un enjeu de plus en plus sensible. En effet, on prévoit que la population mondiale actuelle (7,2 milliards) devrait augmenter pour atteindre 8,1 milliards en 2025 et 9,6 mi...
Article
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Monosporascus cannonballus responsible for cucurbits Monosporascus root rot and vine decline, is worldwide spread notably in Tunisia. The most appropriate strategies to suppress disease development are those able to reduce the ascospores population using eco-friendly approach treatments. Seven soilborne fungal isolates were tested in vitro (by dual...
Article
Monosporascus cannonballus is a prominent soil-borne pathogen in the principal Tunisian cucurbits growing areas. One experimental field, was chosen for this study at three growing seasons (A: 2009/10; B: 2010/11 and C: 2013/14), located in the High Institute of Agronomy Chott Meriem (Sousse, Tunisia). The aim of this investigation was to assess the...
Poster
Background and aim: The soil is rich of microorganisms that could be beneficial or pathogens and soil fungi fulfill both roles and are ubiquitous. Some soil fungi are potential pathogen to both plants and other organisms. These pathogens are responsible of reduced production, disease or death of plants. Anthracnose caused by Colletotrichum gloeospo...
Article
Full-text available
Soil mycoflora analysis from cucurbits showed remarkable diversity A total of 180 soil samples were collected from experimental field treated with four doses of organic amendments (0, 20, 40, 60 tons per hectare) and cultivated by five cucurbits (watermelon, grafted watermelon, muskmelon, grafted muskmelon and squash) to determining number of soil-...
Article
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In an attempt to develop an alternative strategy, it is interesting to assess the best method of fungicide application, the position of the leaflets treated and the effect of a reduced dose on the infection level. Two fungicides, Ridomil Gold ® and Copper Nordox ® were evaluated to control mildew infection caused by Phytophthora infestans on potato...
Poster
En Tunisie, avec les pertes de production dans certaines régions cultivées en cucurbitacées, la lutte contre le dépérissement des cucurbitacées est devenue une priorité. L’orientation internationale est le développement d’une méthode de lutte intégrée, peu onéreuse et compatible avec les préoccupations environnementale. L’une des approches privilég...
Chapter
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Soil mycoflora analysis from watermelon rhizosphere showed remarkable diversity. The screening revealed the presence of antagonist and pathogenic fungi belonging to 16 species. The highest isolation frequency was for Aspergillus terreus (13.82%), then A. niger (12.59%), A. pseudoelegans (10.81%) and A. flavus (9.88%). According to this work, both m...
Presentation
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Gabés .... Que reste-t-il de cette paradis? Presque rien…
Book
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L'oasis de Chott Sidi Abdel Salam est l’unique oasis littorale de la méditerranée et l'un des derniers exemples d'oasis dans le monde. Il s’agit d’une ancienne oasis traditionnelle qui doit son existence à trois ressources naturelles et patrimoniales. Aussi, l’oasis constitue un refuge pour une faune riche en petits mammifères, reptiles, mollusques...
Article
Full-text available
Very few studies of the potential of Hydrogen (pH) of water and sediment wetland at Ramsar site 2076/2012 have been reported in the literature. In this context, a sampling was collected from five sites of Oued El Malah and Tarf El Maa (north of Gabes: south-east of Tunisia). The results showed that the pH complies with national and international re...

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For more information regarding our goals and methods please visit our websites: DYSONA - Applied Science http://applied.dysona.org DYSONA - Life Science http://life.dysona.org E-NAMTILA https://e-namtila.com