Contribution des fourmis à la lutte biologique contre les &lt;i&gt;Loranthaceae&lt;/i&gt;

Yemeda, CF Ladoh; Mony, Ruth; Tchatat, M.; Dibong, Siegfried Didier

doi:10.4314/ijbcs.v7i3.4

Cited by 4 publications

(2 citation statements)

References 17 publications

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“…Cocoa trees are generally cultivated in hot and humid regions where rains are abundant. However, if the ecologies of these regions are suitable for their good development, they could disturb equilibrium needed for the efficiency of biological control against pests damages such as that epiphytic that of parasite plants belonging to LORANTHACEAE's family (Ladoh and Yemeda, 2013). These suitable ecologies could also be favorable for the development of black pods disease epidemics on cocoa trees.…”

Section: Discussionmentioning

confidence: 99%

Adaptation strategies for the adverse effects of climate disruptions on coffee and cocoa trees productivity in Cameroon

Maledy¹,

Adengoyo²,

Nkeng³

et al. 2023

Int. J. Bio. Chem. Sci

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The decline of Cameroon cocoa and coffee productions are increasingly designated as one of the negative consequences of climate change on plants development. The purpose of this study was to contribute to improving the productivity of cocoa and coffee trees, in their production areas, in Cameroon. Thus, 280 plots, located in three different agro-ecological zones, were monitored for five consecutive years (2014-2018). Meteorological data were also systematically collected at each site. Data analysis highlighted three classes of unstable meteorological profiles that reflect the non-recurrence of climatic events on the study sites. Multiple logistic regression analysis showed that the incidence of cocoa black pod disease and that of Arabica coffee berry disease increases with the quantity of rainfall and the number of rainy days. This increase rather induces a decrease in the attack rate of berry borer on the Robusta coffee trees. The results obtained made it possible to identify, by elucidating their respective roles, the climatic variables which have an effect on the productivity of cocoa and coffee trees. They have also led, for the first time, to the conceptualization of innovative technical processes, which can reduce the harmful effects of climatic disturbances on cocoa and coffee crops.

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Section: Discussionmentioning

confidence: 99%

Adaptation strategies for the adverse effects of climate disruptions on coffee and cocoa trees productivity in Cameroon

Maledy¹,

Adengoyo²,

Nkeng³

et al. 2023

Int. J. Bio. Chem. Sci

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“…and Theobroma cacao (Dibong et al, 2011). Loranthaceae plays an important and complex role in biological systems where they interact with ants, birds and mammals (Watson, 2001;Ladoh et al, 2013.). The plants during their evolution, have developed symbiotic interactions with microorganisms.…”

Section: Introductionmentioning

confidence: 99%

Identification and phytochemical screening of Endophytic fungi from stems of <i>Phragmanthera capitata</i> (Sprengel) S. Balle (<i>Loranthaceae</i>)

Ladoh-Yemeda¹,

Nyegue²,

Ngene³

et al. 2015

J. App. Bioscience.

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Objective: The purpose of this study was to identify some endophytic fungi, which were associated with the stems of Phragmanthera capitata (Loranthaceae), and to determine the phytochemical composition of their extracts. Methodology and results:The isolation of endophytic fungi was made on PDA medium (Potato dextrose agar) and the identification was based on macroscopic and microscopic observations of the different strains isolated and using identification keys. The qualitative phytochemical analysis of acetate ethyl extracts of the endophytes was carried out using standard procedures. Eleven fungi species belonging to 4 genera were isolated: Aspergillus (06 species), Penicillium (03), Trichoderma (01) and Fusarium (01). The phytochemical analysis revealed the presence of flavonoids, anthroquinones, tannins, phenols, steroids, coumarins and terpenoids and absence of alkaloids and saponins in all the extracts. Conclusion and application of results:The study shows that endophytic fungi of P. capitata could be a potential source of new bioactive compounds, which can be used in the fields of health and agriculture.

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