Welcome to International Network for Natural Sciences | INNSpub

Impact of Phragmanthera capitata (Sprenge.) Balle on pod and beans production of two Cocoa clones in Nkoemvone seed fields (South Cameroun)

Research Paper | April 1, 2020

| Download 10

Ondoua Joseph Marie, Kenne Martin, Dibong Siegfried Didier, Ngotta Biyon Jacques Bruno, Anyinkeng Neculina, Ekodeck Georges Emmanuel

Key Words:

J. Bio. Env. Sci.16( 4), 90-96, April 2020


JBES 2020 [Generate Certificate]


Theobroma cacao L. known as cocoa plant is a cash crop for all producing countries, and a significant source of income for agricultural families. In Cameroon, cocoa production is threatened by parasitic vascular plants belong to Loranthaceae. Among those parasitic vascular plants Phragmanthera capitata (Spreng.) Balle is the most abundant species. This parasitic plant causes severe damages to cocoa plants in Nkoemvone seed fields. The main purpose of this research was to find out if Phragmanthera capitata attack has an impact on the number and weight of pods produced. The experiment was done on two cocoa clones SNK 64 and UPA 143 from 2016 to 2018.Student t test was used to compare the production of pods, the weight of pods; the number of beans produced per pod as well as their weight between parasitized and non-parasitized cocoa plants. A total of 1280 cocoa plants belonging to all cocoa clones in the area were randomly selected and divided in two groups, parasitized and non-parasitized cocoa plants. The study results indicated the number of cocoa plants without pods in parasitized cocoa plants (468 cocoa plants , 73.12% in 2016; 468 cocoa plants, 73.12% in 2017 and 479 cocoa plants, 74.84% in 2018; c2= 0.650; ddl = 2 and p = 0.7312) is higher than the number of cocoa plants without pods in non-parasitized ones (265 cocoa plants, 41.41% in 2016; 243 cocoa plants 37.96% in 2017 and 231 cocoa plants, 36.09% in 2018; c2= 3.925; ddl = 2 and p = 0.139). Concerning the quantity of beans produced by pods, the results revealed that there is no significant difference between parasitized cocoa and non-parasitized ones.


Copyright © 2020
By Authors and International Network for
Natural Sciences (INNSPUB)
This article is published under the terms of the Creative
Commons Attribution Liscense 4.0

Impact of Phragmanthera capitata (Sprenge.) Balle on pod and beans production of two Cocoa clones in Nkoemvone seed fields (South Cameroun)

Balle S. 1982. Loranthaceae, Flore du Cameroun, Vol. 23, Sabatié B, Leroy JF, Yaoundé

Cilas C, Mochado R, Motamayor JC. 2010. Relations between several traits linked to sexual plant reproduction in Theobroma cacao L.: number of ovules per Ovary, number of seeds per pod, and seed weight. Tree Genetics & Genomes 6, 219-226.

Cilas C, Paulin D, Clément D, Baradat Ph. 1999. Selection multi-caractères dans un plan factoriel de croisement en Côte d’Ivoire. Définition d’un index de selection. In : Proc. 12e conference international sur la recherché cacaoyère, 20-25 Octobre 1996, Salvadore de Bahia, Brazil 411-416.

Cilas C. 1991. Estimation de quelques paramètres génétiques pour différents plans de croisement chez lz cacaoyer. Café, Cacao, Thé 35, 3-14

Dibong SD, Engone Obiang NL, Din N, Priso RJ, Taffouo VD, Fankem H, Sallé G, Amougou A. 2009. Niveau d’infestation des arbres fruitiers des groupements végétaux par Phragmanthera capitata (Sprengel) S. Balle (Loranthaceae) dans la région littorale du Cameroun. International Journal of Biological and Chemical Science 3, 347-354.

Edagbo DE, Ighere DA, Michael C. 2013. The influence of African mistletoe (Tapinathus bangwensis) on the conservation status and productivity of Irvingia gabonensis in Moor plantation area of Ibadan, Nigeria. Green Journal of Agricultural Sciences 3, 743-747

Fines JP, Ngibaot F, Ngono G. 2001. Aconceptual forest management plan for a medium size forest in southern Cameroon. Tropenbos Cameroon 185 p.

Howell BE, Mathiasen RL. 2004. Growth impacts of Psittacanthus angustifolius Kuijt on Pinus oocarpa Schiede in Honduras. Forest Ecology and Management 198, 75-88.

Kuijt JL. 1969. The Biology of Parasitic Flowering Plants, University of Calofornia press, Berkeley, Los Angeles 246p

Ngala TJ. 2015. Effect of shade trees on cocoa yield in small-holder cocoa (Theobroma cacao) agroforests in Talba, Centre Cameroon. University of Dschang 64p

Nganti MD, Ambang Z, Essouma MF, Moutock F, Nourou KA, Pegalopo NA. 2018. Investigation about dieback in cocoa orchards in the bimodal humid forest zone of Cameroon. American Journal of Innovative Research and Applied Sciences 2429-5396I

Ondoua JM, Dibong SD, Taffouo VD, Ngotta Biyon JB. 2015. Parasitisme des champs semenciers de cacaoyers pars les Loranthaceae dans la localité de Nkoemvone (Sud Cameroun). Journal of Applied Biosciences 85, 7794-7803.

Pohill R, Wiens D. 1998. Mistletoes of Africa, The Royal Botanic, Kew: 370 p

Sallé G, Tuquet C, Raynal-Roques A. 1998. Biologie des Phanérogames parasites. Comptes rendus de Sociologie et de Biologie de France 192, 9-36.

Souningo O, Coulibaly N, Brun L, N’Goran J, Cilas C, Eskes AB. 2003. Evaluation of resistance of Theobroma cacao L. to mirids in Côte d’Ivoire: results of comparative progeny trials. Crop Prot 22, 615-621.

Tcharbuahbokengo N. 2005. Cocoa production in Cameroon. AFTA Conference Proceedings 4p.