Lutte contre la maladie du bayoud par solarisation et fumigation du sol. Une expérimentation dans les palmeraies du Maroc

Essarioui, Adil; Sedra, Moulay Hassan

doi:10.1051/cagri/2017043

Cited by 10 publications

(6 citation statements)

References 18 publications

(22 reference statements)

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“…"Bayoud" disease is the principal enemy of palm trees that puts at risk the future of the date industry in Morocco [4]. Bayoud is a tracheomycosis caused by the soil-borne fungal pathogen Foa.…”

Section: Introductionmentioning

confidence: 99%

Exploring the potential of using bioactive plant products in the management of Fusarium oxysporum f.sp. albedinis: the causal agent of Bayoud disease on date palm (Phoenix dactylifera L.)

Bouhlali¹,

Derouich²,

Ben-Amar³

et al. 2020

Beni-Suef Univ J Basic Appl Sci

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Background “Bayoud” disease caused by Fusarium oxysporum f. sp. albedinis (Foa) poses a serious threat to date palm (Phoenix dactylifera L.) in Morocco. However, research studies performed to discover biological methods to control this disease remain limited. The present study has set objectives to determine antifungal activity of five plants extracts (Acacia cyanophylla, Cupressus atlantica, Eucalyptus torquata, Nerium oleander, and Schinus molle) against Foa and link this effect to their content in polyphenols and flavonoids as well as their antioxidant properties. Results Plant extracts showed significant differences (p < 0.05) regarding their antifungal activity. The extracts of E. torquata and C. atlantica showed the strongest antifungal effect resulting in the inhibition of mycelial growth, sporulation, and spore germination in a dose-dependent manner. In addition, there were significant differences among the examined plant extracts in respect to their total polyphenols (1.536–7.348 g GAE/100 g DW), flavonoids (0.986–5.759 g RE/100 g DW), and antioxidant properties measured by Trolox equivalent antioxidant capacity (TEAC) (7.47–38.97 mmol TE/100 g DW) and ferric-reducing antioxidant power (FRAP) assay (8.95–47.36 mmol TE/100 g DW). Moreover, the antifungal potential of plant extracts was found to be moderately to strongly correlated with their polyphenol and flavonoid contents as well as their antioxidant activity, implying that the effective inhibitory activity of these plant extracts is partly due to their richness in antioxidative secondary metabolites. Conclusion Our findings shed further light on plants as a-yet-untapped resource of bioactive compounds and constructed the foundation for the development of new biological approaches to best manage Bayoud disease.

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Section: Introductionmentioning

confidence: 99%

Exploring the potential of using bioactive plant products in the management of Fusarium oxysporum f.sp. albedinis: the causal agent of Bayoud disease on date palm (Phoenix dactylifera L.)

Bouhlali¹,

Derouich²,

Ben-Amar³

et al. 2020

Beni-Suef Univ J Basic Appl Sci

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“…For reference, Bayoud disease is caused by Fusarium oxysporum f. Sp. Albedinis (Foa), the first threat of date palm (Phoenix dactylifera L.) in Morocco (Essarioui and Sedra, 2017). This disease appeared and spread throughout all Moroccan oases, killing about 10 million palm trees (Sedra, 2012), which constitutes a real threat to the oasis system.…”

Section: Study Areamentioning

confidence: 99%

Exploring the land use and land cover change in the period 2005–2020 in the province of Errachidia, the pre-sahara of Morocco

et al. 2022

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The study investigates the land use and land cover (LULC) in Errachidia province (Pre-Saharan of Morocco) in the period 2005–2020. To this end, remote sensing (RS) tools such as LULC, the normalized difference vegetation index (NDVI), the normalized difference water index (NDWI), the Enhanced Vegetation Index (EVI), Gravity Recovery and Climate Experiment (GRACE) satellite data, and precipitations were processed and combined. The monitoring of LULC over this period reveals different changes in this area. Generally, for water bodies, two trends can be observed, an increasing trend since 2006 and a decreasing trend from 2011 to the present. However, an increasing trend was recorded for the urban-and-built-up-lands and the grasslands categories. NDVI, NDWI, and EVI showed three major peaks recorded in the same periods (in 2007, 2009, and 2015). In terms of water storage, three phases were found. The first depicted the lowest groundwater quantities with a decreasing trend, which corresponds to a period of drought and/or human pressure. The second phase, the most important that recorded the greatest storage of water while the third phase corresponds to low storage with a decreasing trend. LULC of croplands reveals a slightly increasing trend from 2012 to 2020, which shows an orientation to an extension of crops mainly of date palm encouraged by government programs. A strong correlation between the seasonal NDVI and water storage using GRACE-Data for the period was found. In the end, recommendations on the adaptation to CC were proposed. The findings demonstrate that RS techniques are useful tools to detect hydrological droughts, observe, and conserve land resources. In arid areas such as Errachidia, the solution lies in rationalizing the use of water resources protecting them from uncontrolled anthropogenic events, which may alleviate the pressure. To support local sustainable development, environmental scientists and decision-makers may use the outputs of this study.

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“…Ce résultat est complété par des travaux publiés ailleurs montrant que ce régime déficitaire n'a pas d'impact non plus sur les rendements en dattes. Le deuxième article propose une méthode de lutte contre la fusariose vasculaire du palmier dattier, le bayoud, à travers une méthode couplant la solarisation et la fumigation (Essarioui et Sedra, 2017). Ce travail, qui prolonge une longue série de travaux sur le bayoud depuis près d'un siècle (Saaidi, 1992), offre des perspectives de traitement localisé de cette maladie, en particulier dans de nouvelles plantations qui ne sont pas (encore) infestées à grande échelle.…”

Section: Les Contributions Au Numéro Thématiqueunclassified

Les oasis en Afrique du Nord : dynamiques territoriales et durabilité des systèmes de production agricole

Bouaziz¹,

Hammani²,

Kuper³

2018

Cah. Agric.

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Résumé -Les oasis sahariennes ont connu des changements particulièrement profonds et déstabilisants dans la seconde moitié du 20 e siècle, s'accompagnant de transformations sociales, économiques, agricoles et environnementales. Aux oasis phoenicicoles étagées classiques, viennent s'adjoindre de nouvelles extensions ou projets agricoles à travers des initiatives étatiques ou locales. Dans un contexte où les formes d'agriculture les plus modernes et les plus traditionnelles sont juxtaposées, il est pertinent d'analyser à la fois les ruptures et les continuités entre ces différentes formes d'agriculture saharienne. C'est précisément dans le but de contribuer à améliorer et partager les connaissances sur les dynamiques agricoles et territoriales en cours dans les oasis en Afrique du Nord, que nous avons organisé un symposium international à Zagora, oasis de peuplement millénaire. Le présent numéro thématique prolonge cette discussion sur ces dynamiques au sein des anciennes et nouvelles oasis et leurs interrelations avec les modes d'élevage et les activités non agricoles. Les différentes contributions au numéro thématique montrent les risques induits par les changements rapides. Elles dévoilent aussi des oasis bien vivantes, dont la durabilité passe sans doute par la cohabitation d'initiatives diversifiées.Mots clés : oasis / Maghreb / eau souterraine / agriculture / palmier dattier Abstract -Oases in North Africa: territorial dynamics and sustainability of farming systems. The Saharan oases experienced particularly profound and destabilizing changes in the second half of the 20th century, accompanied by social, economic, agricultural and environmental transformations. New extensions and agricultural projects have been implemented through a multitude of state or local initiatives. In a context where the most modern and traditional forms of agriculture are juxtaposed, it is important to analyze not only the ruptures, but also the continuities between these different forms of Saharan agriculture. It is precisely with the aim of improving and sharing knowledge on the agricultural and territorial dynamics underway in the oases in North Africa, that we organized an international symposium in Zagora, a millennial settlement oasis. This thematic issue continues the discussion of these dynamics within the old and new oases and their interrelations with farming and non-agricultural activities. The various contributions to the thematic issue show the risks of rapid change. They also reveal living oases, whose sustainability will undoubtedly depend on the coexistence of diversified initiatives.

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Lutte contre la maladie du bayoud par solarisation et fumigation du sol. Une expérimentation dans les palmeraies du Maroc

Cited by 10 publications

References 18 publications

Exploring the potential of using bioactive plant products in the management of Fusarium oxysporum f.sp. albedinis: the causal agent of Bayoud disease on date palm (Phoenix dactylifera L.)

Exploring the potential of using bioactive plant products in the management of Fusarium oxysporum f.sp. albedinis: the causal agent of Bayoud disease on date palm (Phoenix dactylifera L.)

Exploring the land use and land cover change in the period 2005–2020 in the province of Errachidia, the pre-sahara of Morocco

Les oasis en Afrique du Nord : dynamiques territoriales et durabilité des systèmes de production agricole

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