Parasitisme des champs semenciers de cacaoyers par les &lt;i&gt;Loranthaceae&lt;/i&gt; dans la localité de Nkoemvone (sud Cameroun)

Ondoua, JM; Sd, Dibong; Taffouo, V. D.; Biyon, JB Ngotta

doi:10.4314/jab.v85i1.1

Cited by 7 publications

(9 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…With regard to the vertical structure of the crop plants, the high incidence values according to the classes of (2-4 m) and (4-8 m) on the one hand in cocoa and coffee trees and on the other hand starts with rubber trees from classes (8-12 m) and over. These results confirm the work of Soro [21] in Côte d'Ivoire and Ondoua et al [26] in Cameroon.…”

Section: Discussionsupporting

confidence: 93%

Parasitism of Loranthaceae on crops: case of plantations in rural area on the periphery of Jean Lorougnon Guédé University of Daloa, Central-West Côte d'Ivoire

Amon¹,

Koulibaly²,

Sako³

2020

World J. Adv. Res. Rev.

View full text Add to dashboard Cite

In Côte d'Ivoire, tree crops are an important source of agricultural income. Unfortunately, the disquieting expansion of Loranthaceae is observed on many annuity crops like cocoa trees, coffee trees and rubber trees. This situation can harm the economy generated by the activity out coming from these speculations. The aim of this study is therefore, to know the diversity of Loranthaceae and to determine the extent of their infestation on crops, in rural area on the periphery of the University Jean Lorougnon Guédé. The inventories were carried out by surface and roving survey methods coupled with direct observations on individuals of cocoa trees, coffee trees and rubber trees. In total, 3 species of Loranthaceae: Globimetula danglagei, Phragmanthera capitata var. capitata and Tapinanthus bangwensis (T. bangwensis) were inventoried in the plantations. T. bangwensis is the most abundant parasite on crops. Forty-one host species divided into 34 genera and 21 families have been identified within the plantations. The Fabaceae (19.51%) and the Malvaceae (9.75%) are the most infested families. On cocoa trees, coffee trees and rubber trees, the parasitism of Loranthaceae respectively indicated the following pairs of values (incidence and severity index): (42.86±7.02% and 33.99±7.10%), (25.93±11.65% and 21.92±3.11%) and (6.38±0.97% and 6.72±1.55%). The results indicated a significant difference between the incidences of infestation, the crop severity index as a function of Diameter Breast Height (DBH). The incidence of Loranthaceae infestation on all the annuity crops is around 24.93±17.20% and the severity index is 20.88±12.47%.

show abstract

Section: Discussionsupporting

confidence: 93%

Parasitism of Loranthaceae on crops: case of plantations in rural area on the periphery of Jean Lorougnon Guédé University of Daloa, Central-West Côte d'Ivoire

Amon¹,

Koulibaly²,

Sako³

2020

World J. Adv. Res. Rev.

View full text Add to dashboard Cite

show abstract

“…Par contre la bordure de la parcelle de Likomba possède le nombre de touffes par individu le moins élevé (2,49). Ondoua et al (2015) ont trouvé un taux de parasitisme maximum de 17,48 % chez les cacaoyers dans le Sud-Cameroun. Cette différence par rapport au taux de parasitisme observé dans le sud-ouest s'explique par le fait que le parasitisme varie en fonction de la position géographique et des paramètres floristiques de l'hôte (Dibong et al, 2009 ;Raynald Roques & Paré, 1996cit.…”

Section: Resultatsunclassified

Niveau de parasitisme des hévéas par les <i>Loranthaceae</i> dans la région du Sud-ouest Cameroun

Biyon¹,

Dibong²,

Taffouo³

et al. 2016

J. App. Bioscience.

View full text Add to dashboard Cite

Ngotta Biyon Bi et al. J. Appl. Biosci. 2015Niveau de parasitisme des hévéas par les Loranthaceae dans la région du Sud-ouest Cameroun 9055Niveau de parasitisme des hévéas par les Loranthaceae dans la région du Sud-ouest Cameroun NGOTTA BIYON Jacques Bruno (1)* DIBONG Siegfried Didier (1,2,3) , TAFFOUO Victor Désiré (1,2) , ONDOUA Joseph Marie (4) , Bilong Paul (5) RESUMEObjectif : La présente étude s'intéresse au parasitisme des hévéas par les Loranthaceae dans les plantations de la Cameroon Development Coorporation (CDC) de la région du Sud-ouest du Cameroun. Méthodologie et résultats : L'étude a consisté à dénombrer les espèces de Loranthaceae parasitant les hévéas, le nombre de touffes par individu parasité afin de déterminer le taux ainsi que l'intensité du parasitisme dans les plantations. Les résultats montrent qu'une seule espèce de Loranthaceae a été rencontrée dans les parcelles étudiées, Phragmanthera capitata. Le taux de parasitisme varie significativement du village Sonne (65 %) au village Likomba (51,53 %). Le clone PB 217 est le plus -parasité (65,08 %), tandis que le clone PR 107 est le moins parasité (48,31 %). Conclusion et application des résultats : Les types de voies d'accès jouent un rôle important dans la propagation du parasitisme. Il serait judicieux dans un premier temps, afin de mieux contrôler le parasitisme, de planter les clones les moins sensibles en bordure des plantations. Toutefois, des méthodes de lutte efficaces devront être mises sur pied afin d'améliorer les rendements des plantations. Mots-clés : Hévéas, Loranthaceae, parasitisme, sud-ouest.Parasitism of rubber trees by Loranthaceae in the South-west region of Cameroon ABSTRACT Objective: The present work consists in looking for characterizing the parasitism of the rubber trees by the Loranthaceae in the plantations of the Cameroon Development Corporation (CDC) of the Southwest of Cameroon region. Methodology and results: The study consisted in counting the various species of Loranthaceae which lives as parasite on the seed fields, on the feet of infested rubber trees, and to determine the intensity of the parasitism of rubber trees. Results showed that only one species of Loranthaceae has been met in the studied areas, Phragmanthera capitata. The rate of parasitism varies from Sonne (65%) to Likomba villages (51,53%). The clone PB 217 was the most parasitized (65,08%), while the clone PR 107 was the less parasitized (48,31%). Conclusion and application of the results: The types of approach paths play an important role in the propagation of the parasitism. The clones least sensitive to the parasitism should be plant in border of the plantation to reduce the level of parasitism. However, appropriate control methods against the parasitism by Loranthaceae should be sought to increase plantation yields.

show abstract

“…Polhill and Wiens (1998) counted over 500 species in Africa and Arabia while Balle (1982) identified 7 genera and nearly 26 species in Cameroon. In seed fields of Nkoemvone, 6 species of Loranthaceae and a percentage of parasitism equal to 10.44% have been noticed, Phragmanthera genus being the most common with two species: Phragmanthera capitata and Phragmanthera nigritana representing 94.14 and 5.5%, respectively of all parasites found in the seed fields (Ondoua et al, 2015).…”

Section: Introductionmentioning

confidence: 95%

Myrmecofauna of cocoa trees infested by Loranthaceae genus Phragmanthera in Sodecao seed fields of Nkoemvone (South of Cameroon)

Marie¹,

Mony²,

Didier³

et al. 2016

J. Entomol. Nematol.

View full text Add to dashboard Cite

The present study was carried out in order to identify the ant fauna of cocoa fields leeched by Loranthaceae, genus Phragmanthera in Nkoemvone seed farms in the South region of Cameroon. The collection of ants was conducted between November 2013 and January 2014. A total of 15 ant species divided into two sub families (Formicinae and Myrmicinae) have been identified, the subfamily of Myrmicinae being the most represented with 8 genera and 13 species. Fourteen of the 15 ant species harvested, were found on infested cocoa trees. Tetramorium aculeatum has emerged as the most abundant ant species on infested cocoa trees with an index of Berger-Parker dominance equal to 0.32 and 0.34 for cocoa parasitized by Phragmanthera capitata and Phragmanthera nigritana, respectively.

show abstract

Parasitisme des champs semenciers de cacaoyers par les <i>Loranthaceae</i> dans la localité de Nkoemvone (sud Cameroun)

Abstract: Parasitisme des champs semenciers de cacaoyers par les loranthaceae dans la localité de Nkoemvone (sud Cameroun)

Cited by 7 publications

References 4 publications

Parasitism of Loranthaceae on crops: case of plantations in rural area on the periphery of Jean Lorougnon Guédé University of Daloa, Central-West Côte d'Ivoire

Parasitism of Loranthaceae on crops: case of plantations in rural area on the periphery of Jean Lorougnon Guédé University of Daloa, Central-West Côte d'Ivoire

Niveau de parasitisme des hévéas par les <i>Loranthaceae</i> dans la région du Sud-ouest Cameroun

Myrmecofauna of cocoa trees infested by Loranthaceae genus Phragmanthera in Sodecao seed fields of Nkoemvone (South of Cameroon)

Contact Info

Product

Resources

About